Understanding Cracked Heat Exchangers

A cracked heat exchanger is a danger to your home and should be treated as one. Furnace heat exchangers are used to transfer heat between the fuel being burned and the air in your home. High-efficiency furnaces incorporate a secondary heat exchanger to increase efficiency by removing excess heat from the exhaust stream. High-efficiency furnaces, as a result, produce liquid from the exhaust stream, condensing exhaust in the secondary heat exchanger.

When operating, your furnace will burn one substance (fuel) to create another (heat). During that process, it’s possible to create harmful substances—such as carbon dioxide, carbon monoxide and nitrous oxide—which can be released through cracks in your furnace’s heat exchanger. These substances can cause illness in small doses and can even prove fatal in extreme exposure.

So, if you think you have a crack, what do you do?
Call your HAMCO Heating & Cooling Ltd. service technician immediately. We’ll examine your system and give you an honest evaluation. More often than not, a cracked heat exchanger will require replacement of either the heat exchanger itself or the entire heating system, but it’s best to let a licensed technician inspect the system first.

What causes a heat exchanger to crack?
The cracks in a heat exchanger are much like the cracks you drive over every day on your city’s streets. As the seasons change, roads are heated and then frozen. As a result, the road has slight size adjustments throughout the year, (when the road is hot it expands and when it’s cold it shrinks). Over time the material can become brittle and eventually crack.

This same thing happens to your home comfort system.

When your system begins a cycle to heat your house, the fuel being burned heats the heat exchanger, forcing it to expand. The heat exchanger is more vulnerable to cracks when it must deal with extreme temperatures. During these extremes, the material of the exchanger is forced to adjust beyond its typical measurements, and it can eventually pass the design threshold and crack and/or separate to relieve pressure.

If your settings and/or system are improperly set to meet your home’s needs it may run an inefficient amount of cycles, creating more wear and tear than necessary. This is typical with a poor installation of your system, an improperly sized system, and/or poorly maintained equipment.

What can you do to prevent a crack?
Heat exchanger failure is typically caused by poor airflow—air that is too cold being blown across it, or improper gas valve adjustment. Your best way to prevent this from happening is by limiting these extremes and limiting excess cycles that your system must perform.

While extreme outdoor temperatures are hard to avoid, you can decrease the possibility of heat exchanger failure by purchasing from a responsible contractor and properly maintaining your system.

Our service technicians can diagnose these problems to create more efficient settings for your system and identify potential airflow issues within it. In terms of airflow, the solution could be as simple as using a different or new filter, or as sophisticated as fixing improper duct sizes or fittings.

Contact us if you have any questions or concerns about your heating system.

HAMCO Heating & Cooling Ltd. has been serving Hamilton, Burlington, Oakville, Grimsby and Brantford for over 70 years. We’re fully committed to providing the best quality service for all our customers on every service call.
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HAMCO Heating & Cooling
4.8
Based on 515 reviews
Omar Atiyeh
Omar Atiyeh
18:59 31 Oct 24
Hamco is an amazing family run business that have all the expertise you'll need!! If you're looking to upgrade, repair or maintain your residential and/or commercial HVAC... equipment, they're your top choice in Hamilton and surrounding area!read more
Karin Griffin
Karin Griffin
01:22 24 Oct 24
Nolan is our usual tech for anything AC/furnace! Very professional, always able to answer any questions/concerns and quick to come and help when we need him!
Taylor Who
Taylor Who
21:28 22 Oct 24
I recently had my furnace serviced and the technician, Mike K. was incredibly polite, informative and efficient. I will definitely be using Hamco again when needed in the... future because of the great service and will definitely be suggesting Hamco to my friends and family needing service!read more
Kyle Maloney
Kyle Maloney
20:27 22 Oct 24
Had Nolan come and install my new AC unit. Did a great job, showed me how everything works.
James Jennings
James Jennings
20:05 22 Oct 24
Mike the Hamco Boiler & HVAC technician was excellent: effective in reolving our issue, and did it very efficiently, politely, and professionally.
Evan Stott
Evan Stott
18:18 22 Oct 24
Mike Kawa is the best technician I have ever had the pleasure of working with
E C
E C
17:12 22 Oct 24
Just had my houses heating repaired, it was timely, extremely well managed and very thorough, the serviceman Mike Kawa even went through the trouble of explaining what went... wrong with it and how to avoid it in the future. 100% will be recommending Hamco to my friends and family and even coworkers. Very impressed!read more
Brittany Werner
Brittany Werner
14:42 22 Oct 24
We had a couple issues with our air conditioning unit this summer as it's getting old. Our technician Mike was so helpful and got it working fast! My family was so happy we... didn't have to go long without it. Friendly and efficient service.read more
Madison Rogers
Madison Rogers
14:29 22 Oct 24
I had a speedy and fantastic experience with hamco. Mike k helped with my furnace and gave me honest, unbiased advice. Highly recommend I won’t go anywhere else!
rolfe baltzer
rolfe baltzer
15:42 21 Oct 24
Najim serviced my furnace professionally and was friendly. They cleaned and did a safety check at good value! I will use them again.
Knollis Johnson
Knollis Johnson
18:56 19 Oct 24
The agent from HAMCO arrived with the suggested window. Najim, the technician, quickly diagnosed and resolved the issue. He also provided useful information about the state... of my furnace and air-conditioner.read more
Peter Billings
Peter Billings
20:03 18 Oct 24
Najim, from Hamco provided great service , was on time and able to complete the gas valve replacement on my 16 yr old furnace within 3 days of initial visit. I highly... recommend Hamco for Heating and cooling services in the greater Hamilton area.read more
Tara Smith
Tara Smith
18:40 16 Oct 24
We had Hamco come for a service check for our boiler, and Mike K. Our technician was great. He explained what the issues were and what needed to be done to fix them.
EBJ
EBJ
00:14 16 Oct 24
Recently called Hamco for an emergency with our heating system. Our tech Mike was there in record time and had us up and running in no time. He was polite and efficient and... we will definitely be calling again!read more
Dahyabhai Patel
Dahyabhai Patel
00:14 10 Oct 24
Great to work with - thank you!
Alexandra Porter
Alexandra Porter
17:19 04 Oct 24
We had Nolan as our technician and we were very pleased. Very kind and knowledgeable! We highly recommend him and Hamco
Melissa Jones
Melissa Jones
17:06 04 Oct 24
Nolan was our service person and he was very polite and prompt. I hope we always have him as our service person. He was such a pleasure to deal with and so knowledgeable!
kim jones
kim jones
16:51 04 Oct 24
I recently needed some help and the technician who came was great. He explained everything that he was doing, even gave me some tips to be more efficient. These kinds of... calls always make me anxious, worrying about how much the bill will be? Will I get a good technician who is honest and knows what he/she is doing? All went well and I want to thank Nolan T. for his professionalism and easy-going manner. Thanks Nolan and thanks Hamco!read more
P B
P B
01:51 04 Oct 24
I recently had Mike from Hamco perform my annual maintenance and I’m extremely satisfied with the experience. From the moment he arrived, he was friendly, professional, and... clearly very knowledgeable about heating systems. Mike took the time to explain everything he was doing and offered useful tips to help me maintain the furnace through the colder months. His thorough work gave me confidence that my furnace is in great shape for the winter. Mike is definitely a valuable member of the Hamco team, and I’ll be requesting him for future service! Thank you Hamcoread more
Bri Chernesky
Bri Chernesky
18:54 03 Oct 24
Had maintenance done on my ac and furnace and mike was very helpful and informative. Very pleased with the service and will use hamco again in the future.
joel dixon
joel dixon
18:33 03 Oct 24
Had our annual maintenance done, quick, affordable, and mike was a great technician for them to send, highly reccommend hamco!
Jacob Bakalar
Jacob Bakalar
15:58 03 Oct 24
Hamco is great !!I had mike come out for a service call and he was super helpful
carmella dorsay
carmella dorsay
15:35 03 Oct 24
We had Mike Kawa from Hamco service our furnace and air conditioner. We were more than pleased. Well spoken, polite, courteous young man. He was very informative and... knowledgeable! We will definitely be recommending and using your company again!!Marco and Carm Tesolinread more
Daniel
Daniel
15:08 03 Oct 24
We had Hamco come in and service my father's furnace. The technician that showed up, Mike, was extremely professional, knowledgable and talked through the issue with myself... and my father. He showed up on time and aware of the work needed to be completed. The price was very reasonable compared to quotes we had received from other places. I have already recommended Hamco to all my friends and family.read more
Ritchie Taylor
Ritchie Taylor
15:02 03 Oct 24
Mike serviced my system some time ago and gave fantastic service. Will be requesting him every time!
Justine Jones
Justine Jones
19:29 01 Oct 24
Great service. Nolan is a wonderful technician. Highly recommend
DK
DK
19:35 30 Sep 24
I had service man came to service my furnace today. I was late meeting him but he waited for me. He was very courteous in dealing with. I am very pleased with the services.... Thank you very much Najim for getting my furnace ready for winter.Georgeread more
Wa Cas
Wa Cas
17:51 28 Sep 24
Our service specialist Najim was a pleasure to deal with. He went above and beyond the required service needed. Respectful, extremely knowledgeable and hard working, this... specialist had it all. I will solely be dealing with him in the future. Thank you Najim.read more
Bri Mil
Bri Mil
15:25 25 Sep 24
We had a service call to check on a furnace problem. The Service Technician, Steve, was a real pleasure to meet and deal with. He was extremely professional and... knowledgeable. He quickly found the problem and offered suggestions as to resolving it.read more
Shannon Sinclair
Shannon Sinclair
15:03 18 Sep 24
Christian from Hamco came by to do an annual maintenance on my furnace. It is a brand new furnace that I bought from them last year, but doing the yearly maintenance... increases my labour warranty. Christian was efficient, very kind and punctual. I will be a longtime Ho customerread more
Joan French
Joan French
18:37 13 Sep 24
After replacing our furnace and installing a central air unit with Hamco we've had nothing but excellent, attentive service that is reasonably priced and achieved both on... time and with great courtesy. Christian just performed the yearly maintenance on both units, and thanks to him we're all set for winter! There was an issue with a part he quickly and efficiently replaced, and I'm certainly happy to know it now instead of during the first cold snap.read more
Mary Smith
Mary Smith
17:58 13 Sep 24
Just had my furnace serviced for its yearly checkup. Christian the service technician was polite, he explained in detail the bill to me and what was done. Excellent service.
Charlene Kump
Charlene Kump
15:01 13 Aug 24
We had no hot water. I called after office hours and left a message. They returned my call before 9 am. And a very nice gentleman named Najim had it working by 11... am.Will definitely call again!read more
Omotola N
Omotola N
18:21 31 Jul 24
Larry Adoranti
Larry Adoranti
19:20 30 Jul 24
Air conditioner service required due to non-cooling. Called Hamco first thing in the morning and fixed early afternoon. Exceptional courteous service beginning at reception... who booked the service and by Najim, the onsite technician. Najim was amazing, very professional and knowledgeable and he looked after a few extra items while he was here - cleaning, taping gaps in duct work, etc. Thank-you Najim!read more
connie marshall
connie marshall
19:06 24 Jul 24
Excellent service! Called them for a 2nd opinion, and boy did they deliver. They followed up with manufacturers of our heat exchange and found out it was under warranty. ... Going the extra step, saving us over $2400 based on quote from the other guys to replace. We know who we will be buying our new system from when needed. Thanks Najim for going the extra mile!read more
U K
U K
20:10 09 Jul 24
I should have called HAMCO right from the beginning! Me and my family suffered with no AC for a week during the hottest days yet this summer! Corey from HAMCO came bright and... early this morning and solved the problem. Very professional, knowledgeable and respectful, he got the job done in no time. Thank you Corey and HAMCO!!!!read more
Peggy French
Peggy French
15:21 09 Jul 24
Fearing an exorbitant bill, I reached out to HAMCO for a Saturday service call during another heat wave. Christian from HAMCO promptly returned my email and explained the... charges, both 'real' and potential. He arrived when he said he would (rarer than it should be!) and immediately set to work. He efficiently and effectively diagnosed the issues and had a well-stocked truck that allowed him to fix both issues and restore my air conditioning. Thank you, Christian! The price was very reasonable and below what I expected to pay under the circumstances. I will continue to recommend HAMCO! Strangely, my two neighbours to the north have both had their air conditioning fail over the last 10 days and neither received timely nor exemplary service from their providers, who were NOT HAMCO.read more
Marchese Pharmacy
Marchese Pharmacy
23:45 04 Jul 24
We have used Hamco for our pharmacy business for many years. They are the reason our customers and staff are always kept comfortable in the store. This year, they even... helped solve a tricky problem with our compounding cleanroom airflow and pressure balance. Just awesome guys. Wish I could give more than 5 stars.read more
Faisal Khawaja
Faisal Khawaja
23:33 04 Jul 24
My AC went out last week, in the hottest days of the year. The Hamco tech showed up on schedule, fixed my AC quickly and professionally. And the price was right. This is... why small, family-owned businesses are the best! They have a customer for life.read more
Michael S
Michael S
21:47 27 Jun 24
Christian came to my place today and he was very friendly, professional, and helpful. He listened carefully to my concerns. He was patient and not condescending while he... explained how the AC worked. He was able to find an important adjustment that was necessary and now it's blowing twice as cold!read more
Gillian Guthrie
Gillian Guthrie
14:18 15 Jun 24
There I was… with an rv hot water tank that needed to be replaced and some propane lines that were beyond sketchy. I didn’t know how to resolve these issues and who would... take on such a project. I reached out to Hamco and although rv trailers are not something they usually tackle, they cared enough to listen. They understood I needed help and they took this job on. Right away, Nolan was out to do an on-site inspection to get a better understanding of what was involved and what needed to be done. He was so professional, personable and knowledgeable. He got right to the task at hand and understood quickly what needed to be addressed. A date was easily booked through the helpful and courteous office team. On June 12, 2024 Nolan returned and again, wasted no time diving in and getting the old hot water tank out and installing the new. Repairing the propane lines and testing and checking all the new system. I can’t thank Nolan, Jordan, Veronika and the rest of the team at Hamco enough for caring, going the extra mile and helping me out of a real jam. It’s not always easy for a service company to achieve the highest level of service that it’s customers expect… but Hamco sure did reach it here.read more
Ruth Wells
Ruth Wells
20:56 28 May 24
I have used Hamco service for 25+ years and have a Hamco installed furnace & air. I use their service for both spring & fall maintenance. They have been very helpful to the... point of helping to keep my very old heating system as long as possible. Recently I had the spring maintenance service & there were a couple of problems after it was completed. I spoke to Tara who was very helpful & patient with my explanation of what was happening. A couple of days later Mike came to investigate the problems & quickly solved the problems & explained what was happening. They were both very helpful and considerate.read more
Gail Bauer
Gail Bauer
19:06 26 May 24
A great company to deal with!!! Tara helped direct me to the right person for ordering a hot water heater which was installed by Adam and Veronika. I have been a long time,... happy customer.read more
charles shields
charles shields
03:22 23 May 24
It feels like Summer is already here and so thankful that we purchased our new York A/C from Hamco a few months ago. It’s running great and keeping our house nice and... comfortable. We have been a customer for many years and can’t be more pleased with Sales (Andrew) Service (Shane) and Customer Service (Tara). All so friendly and knowledgeable.Quick story: Two winters ago my wife and I were visiting my daughter and her family in Switzerland. We were there for 2 months and while away we had a good friend checking the house on a regular basis. A month into the visit I received a text that there was an issue with the furnace. The condensate drain line was leaking and had to be fixed/replaced asap. A 6-hour time change made phoning a challenge however, after talking with Tara and Shane we were relieved and the repair was made the next day. Where do you get Service like that!Thanks again to the HAMCO Family!Regards,Charles D. Shieldsread more
Eu Kh
Eu Kh
20:34 13 May 24
We were really impressed by professional work and customer oriented attitude. Veronica and Corey were great. They went out of a way to make it fit in our complicated... setup.Thank you guys!Addendum:Thanks to the professionalism and understanding of Margaret, We were able to setup a service call for the annual maintenance in a short time, so our furnace is ready for the next season.Thanks again!read more
Greg Gabel
Greg Gabel
16:18 06 May 24
HAMCO is an experienced HVAC shop with great people. We have used them for a number of commercial service jobs. Could not recommend more.
David Ward
David Ward
01:22 04 May 24
I have used Hamco for many years now and have always been pleased with the services that they provide, from both the helpful administrative personal and their knowledgeable... technicians. Hamco is my first choice and the company that I highly recommend to others.David Wardread more
Adam Adam
Adam Adam
17:07 01 May 24
We have been using Hamco for years. And only use them for all our HVAC/Boiler repairs. Nolan is a great tech and Cherryl is great to deal with in the office.
Ron Vandermeulen
Ron Vandermeulen
19:38 29 Apr 24
New furnace installed by Hamco this morning. Veronka and Adam did a fantastic job. Very considerate and very professional! Great experience all around. Great people, great... company. Ron VanderMeulen.read more
Lina DB
Lina DB
18:20 29 Apr 24
I highly recommend HAMCO. The customer service person DENISE is the best. She is always willing to help and sort things out for you. Thank you DENISE 🙂
Victor Renzella
Victor Renzella
16:25 29 Apr 24
I have been dealing with Denise for years and I find her very professional and helpful. I will continue to use Hamco because of Denise and the great service we... receive.Victor Renzellaread more
Catarina Santos
Catarina Santos
14:36 29 Apr 24
Thank you so much Cherryl Skinner, for your help and guidance.You are amazing 👏
Steven Tran
Steven Tran
13:25 27 Apr 24
Great team and extremely knowledgeable. Guided us on our heat pump purchase. Cherryl in the back office was amazing to work with
Graeme Moss
Graeme Moss
22:58 25 Apr 24
Had a new AC put in.Murray & Adam were the technicians. Friendly, fast, helpful. Impressed.They finished ahead of time.Impressed and thank you!Hamco, both product and... services are reliable.read more
Jeff Vaughan
Jeff Vaughan
22:48 25 Apr 24
Excellent service from Nolan! He got us out of a jam and made the experience enjoyable. Called at 7 am and he showed up around 10 am. Can't ask for faster service.
Martello Restaurant
Martello Restaurant
15:17 24 Apr 24
Always excellent service from Hamco! They are prompt, professional and enjoyable to work with. Cherryl has always been a lovely person to interact with and very helpful with... booking service and handling billing!read more
Bernie's Tavern
Bernie's Tavern
21:14 23 Apr 24
Always a top notch experience when dealing with Cherryl! Very pleasant and knowledgable
Nairne Holtz
Nairne Holtz
13:32 20 Apr 24
Small landlady here. I've used Hamco many times over the years and they get there on time and they get the job done. A shout out to Cheryl in Accounting who always answers my... questions and sends out the invoices promptly.read more
Kathy Pleasance
Kathy Pleasance
17:39 19 Apr 24
What makes a great company is their staff.They were all very professional and courteous.A special call out to Cheryl Skinner whois always ready to go that extra mile... fora customer.I would recommend this company without hesitation.Great price, great service, and especially great people.Thank you Cheryl.read more
Aya Dental Centre
Aya Dental Centre
20:42 18 Apr 24
We have a yearly Maintenance Contract with them for the last 3 to 4 years and they deserve more then 5 stars.DENISE is always helpful & accommodate us in emergency.So, 5... stars for Denise also.read more
Wail Dimassi
Wail Dimassi
19:22 18 Apr 24
Thank you Margaret for setting up our Annual furnace inspection and cleaning to meet our availability. It is great to know that I never have to worry about scheduling this... as you are always on top of it.read more
Brandon Lovas
Brandon Lovas
20:02 17 Apr 24
Nothing but good things to say about my dealings with Cheryl. She was professional, understanding and courteous. I would definitely recommend Hamco for any of your heating... and cooling needs.read more
Margaret Wilding
Margaret Wilding
19:52 17 Apr 24
Hamco looked after us really well. An especial shout out to Cheryl in Accounting for helping me keep track of my e-transfers!
Mark Preston
Mark Preston
19:50 17 Apr 24
Have had two furnaces and an AC unit replaced in the last year through Hamco. Always happy with the service. Cherryl in accounts is always a pleasure to deal with as well.
Tabatha Mouland
Tabatha Mouland
12:28 17 Apr 24
As a House Manager for a larger private residence with an extensive HVAC system we relied on the Hamco team to service our system seasonally, as well as assist when there was... an issue. The team is reliable and knowledgeable but the star of the team is Cherryl who was always a delight to work with. Highly recommend.read more
Frank C.
Frank C.
15:20 16 Apr 24
April 2024: Just a quick post to thank the accounting lady at Hamco (Cherryl) – the one who asks for money. I want to acknowledge her pleasant and friendly attitude. Last... year, when I had requested an invoice for a recent service call – through a miscommunication, she pulled out our last 10 years of past invoices, and sent them all to me. Now who else would do that – and still be smiling? Only Cherryl. Thank you!Jonathan at Hamco just completed our annual (June 2023) York A/C maintenance. He went above and beyond - which is always the case with Hamco and their technicians. My thanks go to Shane and his crew.Hamco just finished this year's (2021) annual maintenance on 2 furnaces. Technician (Eric) did a bang-up job - knowledgeable, efficient and courteous - thank you !!Once again Hamco earns its stripes. Had them in for regular furnace maintenance. Andrew M. was everything you would want in a technician - skilled, professional and pleasant. Been using them for many years and highly recommend them. Two thumbs up!We had a noise problem with 1 year old York AC. Shane addressed the problem promptly. Within a day, technician Andrew was on site, diagnosed and fixed the problem within minutes. Thanks to bothread more
Goofy Girl
Goofy Girl
15:06 16 Apr 24
This company has amazing customer service. The staff is great, especially Cherryl in the accounting department who helped me out when I quickly needed to change my monthly... billing after my credit card was stolen. The whole place is wonderful. I can not say enough about the customer service.read more
Frank Ciancone
Frank Ciancone
14:30 16 Apr 24
Dealing with Hamco was very easy, efficient and honest. Service was prompt and affortable. A special thank you to Cherryl Skinner for taking care of our account in a most... professional and consciousness manner. Recommend without hesitation.read more
CeCe Elfie
CeCe Elfie
14:18 16 Apr 24
Want to give credit to the ladies who work in the background. From answering the phone, scheduling and finance. You all are amazing. Cherryl from finance is always so helpful... and friendly. You need someone like her on your team.read more
Joanne Stokes
Joanne Stokes
14:13 16 Apr 24
Can't say enough about the staff - hats off to Cherryl in A/P who ensures invoices are sent out in a timely manner and should there ever is an issue she is quick to help and... get everything sorted. Thanks Cherryl! Joanne from Appleridge Co-operative Housing.read more
Adri Greenspan
Adri Greenspan
13:37 16 Apr 24
Love communicating with Cherryl Skinner from accounting. Always curtious, follows up with gentle reminder to pay :))) we need more people like that. Money is not always... Pleasantville deal with so it's nice to have pleasant moments around it. (Dear Grain Bakery).read more
Jessica Simpson
Jessica Simpson
13:33 16 Apr 24
HAMCO has provided excellent service at our home a number of times now. The entire team is always fantastic, and I've especially appreciated Cherryl's friendly attitude and... prompt invoicing over the years. Thank you!read more
Kathy Dimassi
Kathy Dimassi
13:08 16 Apr 24
Thank you Cherryl Skinner for being on top of all our billing so that payments are made quickly and efficiently. We appreciate your fast response to all billing equiries.
Paul Donoghue
Paul Donoghue
12:24 16 Apr 24
We had our furnace, ventilator and some ducting replaced during a renovation of our condo - a major project. The team did a terrific job of removal and installation. The... whole HAMCO experience was excellent, including the "back office": Cherryl in Accounting was super responsive throughout the process and is a really excellent rep for the company. Thanks, Cherryl. Let's hear it for Accounting!!read more
Givic Tracker App
Givic Tracker App
01:55 16 Apr 24
Hamco Heating and Cooling is a great hvac contractor but what makes them even better than everyone else is their amazing staff. Speaking of which, when it comes to... meticulous administration of Hamco's payables & receivable , no one is better than : Cherryl Skinnerread more
Elizabeth Enns
Elizabeth Enns
21:53 15 Apr 24
Want to share that Cherryl account manager is the best! She helped with my service plan and scheduling and even got me some $ back!
Stef Caunter
Stef Caunter
20:17 15 Apr 24
I use and recommend Hamco for everything. Great technicians. Excellent people. And Nick and Veronika did a terrific job for us. Tidy professional job.
Peter Neumann
Peter Neumann
18:12 15 Apr 24
We at Martello Restaurant have been working with Hamco for several years and have nothing but the highest accolades for their services, including working with Jordan Vasilak... who oversaw the installation of our HVAC systems, but also with Cherryl Skinner in their accounting group, who has always been professional and pleasant and kind in our interactions and communications. We highly recommend Hamco!read more
Christopher Demelo
Christopher Demelo
00:16 13 Apr 24
The tech that came by Christian, did a wonderful and professional job. Would reccomend to friends and family
Keith van Kessel
Keith van Kessel
21:05 11 Apr 24
Great company would recommend to anyone. Ask for Mike!Edit: we've had Hamco over a couple more times since this review. Probably the best HVAC company in town. Quick, great... work at a fair price.read more
Alan Lambshead
Alan Lambshead
15:39 06 Apr 24
Earlier this week Hamco replaced my gas furnace and air conditioner with a new multi stage furnace and heat pump. The team was led by Shemar assisted by Nick, Veronika and... Tony. They were courteous and efficient, and the work of removal and installation of the new system went smoothly. They did a great job of cleanup in the work area, and outside where the hear pump unit is located. Thanks to the installation team, and to Andrew who did the upfront work of finding the right solution for us.read more
Jean-Claude Chambers
Jean-Claude Chambers
15:29 15 Mar 24
Our old rental hot water heater burst, which left us with a bit of a flood and no hot water. We phoned around to the big box retailers to purchase and install a new hot water... tank. The install dates were anything from 7 to 14 days wait. I phone Hamco, and they sent a rep that afternoon to estimate the job. The install was completed next day in 2 hours. Excellent service and competitive price. Highly recommend.read more
Elisabeth Gedge
Elisabeth Gedge
12:45 15 Mar 24
Yesterday the Hamco team replaced my furnace and air conditioner, and did a wonderful job! Led by Shemar, they were courteous and efficient, and the work went smoothly.... Shemar added some unexpected touches - a handle for easily removing the filter, and a pouch for storing the manuals - very helpful for a forgetful and arthritic senior! He helped me set my thermostat and talked me through all decisions made. Thank you to a great team: Tony, Jonathan, and Shemar, and to Steve, who did the diagnostic work on the old furnace and a/c. Congratulations.read more
mark salata
mark salata
15:11 14 Mar 24
Nolan is a professional service technician. He provided knowledgeable service in a timely and efficient manner. We are pleased with the service provided.
Andy Kleiner
Andy Kleiner
14:25 29 Feb 24
Thank you Christian for your extra attention! Truly, everyone at Hamco has been really easy to work with over the years, always friendly, and the units works great!So far,... I’ve always felt safe inviting Hamco employees into my home and this is really important to me as a queer person with disabilities. Thanks!read more
Nicholas Frisby
Nicholas Frisby
18:27 27 Feb 24
Excellent service and knowledgeable staff! My go to Heating and Cooling company moving forward!
M1CAustin
M1CAustin
03:56 25 Feb 24
Christian from Hamco did a super job getting our furnace up and running after it failed to start on a cold Saturday morning. He was very pleasant to deal with, explained... everything and kept in contact with us. Thanks Hamco!read more
Peter Bozzo
Peter Bozzo
21:15 09 Feb 24
We have dealing with Hamco for over 12 years. Steve did our yearly maintenance service this year and did a great job. They have earned our trust over the years, we know... they are honest and competent, best Local HVAC guys in the business.read more
Brent Moss
Brent Moss
15:59 17 Jan 24
Well I waited a while to write a review til it got "REAL cold". I have to say the HEAT PUMP/AC PUMP we had installed in the summer did an outstanding job dealing with the... entire attic area with ease. It was so comfortable up there (when it was like 40+ degrees outside on those heat wave stretches we had here in old DUNDAS) we just wanted to be up there more often, also noticed the air was very comfortable and clear. Not too dry or humid, kinda just perfect.Our house was built in 1903, pretty typical Edwardian style, long, skinny and REALLY tall. Attic open from front to back of house.NOW that its COLD, prior to this HEAT PUMP install, our attic was an ice box. Tough to enjoy, NOT A PROBLEM NOW THOUGH !!! The heat in there is excellent!! It's just quietly keeping us at 24 degrees or so. The outside unit is so quiet I have to lean into it make sure we are running. Incredible really!! HYDRO bills do not show huge increases. I think we are quite similar in historical billing actually, be being more efficient in other areas. Ii.e. weekend laundry only (OFF PEAK), less fancy lights out back no one really looks at too much.The installer crew were in/out in about 7 hours. Great crew!!"ANDREW" was spectacular from start to finish with his knowledge, confidence and professionalism. I had 3 or 4 discussions with hvac folks, and clearly ANDREW knew the job better then the rest, so we signed with HAMCO!Thx folks, I've recommended you several times.Bread more
Rita P
Rita P
22:08 15 Jan 24
Just had a ductless AC installed. Starting from the sales representative Andrew to the technicians who installed the unit, Ainslea, Shemar, Nick and Tony, we couldnt be... happier with the service we received from start to finish. Professional, friendly and efficient, it was a pleasure having them in my home. Hard working bunch and will definitely be referring this company in the future. Thank you Hamco for the amazing job!read more
Cindy Labbé
Cindy Labbé
19:33 09 Jan 24
I would highly recommend Hamco Heating and Cooling Ltd. We had used their services to maintain our old furnace however when we woke up with no heat one morning, we were very... worried. The technician came without two hours. Unfortunately, it was time to replaced the very old furnace and Bill came right away to next day to give us a quote on a new furnace. Our installation took place the following day and our installers Justin and Nick did an amazing job and were very professional. Thank you to the whole team for caring and making sure we were not left out in the cold for very long.read more
Karen Kajtar
Karen Kajtar
03:27 30 Dec 23
Khursheed Ahmed
Khursheed Ahmed
22:56 20 Dec 23
We have been working with HAMCO in Hamilton, ON for over 15 years, to install a high efficiency boiler and a water heater. They have always provided top quality, reliable... service. Recently we installed a heat pump in our house (which is almost 100 years old and has hot water heating). We installed 4 heating/cooling units, one on each floor operated by one large condenser to reduce our carbon footprint and hopefully reduce our gas bill. The installation team of 4 eneregtic young technicians (Veronika, Najim, Josh and Nick) were a delight to work with. They were effciient, fast and completely dedicated. They made sure everything was done to a perfection despite cold weather outside. Thanks very much to them and we recommend them higly to anyone who is considering a heat pump installation.read more
Conor Bell
Conor Bell
01:43 07 Dec 23
Called for a boiler issue after hours and had a knowledgable technician on the other end quickly (Nolan), who helped solve my problem.
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