Proudly Serving the Heating & Cooling needs of hamilton, burlington, oakville & surrounding areas since 1946
WHY CHOOSE HAMCO HEATING & COOLING?
Trusted Brand Names
Professional Technicians
Live Customer Support
Over 80 Years Of Experience
Flexible Payment Options
OUR SERVICES
Furnaces
Furnace Installation, Repair & Maintenance Services
Air Conditioning
AC Installation, Repair & Maintenance Services
Ductless Air Conditioning
Ductless AC Installation, Repair & Maintenance Services
Heat Pumps
Heat Pump Installation, Repair & Maintenance Services
Water Heaters
Water Heater Installation, Repair & Maintenance Services
Boilers
High Efficiency Boiler Installation, Repair & Maintenance Services
Indoor Air Quality
We Install Whole-Home Air Purification Systems, Humidifiers, HRVs & ERVs
Custom Ductwork
Custom Ductwork Design, Fabrication, and Installation for home renovations and new home builds
Your Heating & Air Conditioning Professionals for over 80 Years!
OUR PRODUCTS
HVAC Financing
HAMCO is proud to provide our customers with easy, transparent financing and rental options for their home comfort needs.
TRUSTED PARTNERS & AFFILIATES
Brandon Schofield
21:42 27 Apr 26
Excellent. Najim was extremely helpful. It’s great to work with a company that knows what they’re doing. Highly recommend.
Alice Schmuck
19:15 27 Apr 26
Excellent service. The technican Derek did an excellent job.
Anas Mustafa
18:19 27 Apr 26
Hamco installed my AC unit about 7–8 years ago, and they’ve been great to work with ever since. Their service is consistently excellent. Steve recently came by to troubleshoot an issue, and he was incredibly knowledgeable and professional. He went above and beyond, even helping with a couple of other concerns. Outstanding service all around.
Orland Howard
17:41 23 Apr 26
April 22/26 Wellington square co operative inc. resident.Maintenance inspection by: Najim.I found Najim to be very peronal,courteous, polite, and professionalty informative. Task oriented and timely. I have had Najim work in my residence before as well as other HAMCO employees andinteraction with conntact personel on other inspections and can say the same for them had I known about employee reviews. All good representaives of HAMCO. Thank you HAMCO and employees.
Samantha K
00:50 23 Apr 26
Had a maintenance service done on my HVAC system by Najim and was very impressed. He was on time, professional, and very thorough. He checked everything carefully, cleaned the unit, and made sure it was running efficiently. Took the time to explain what was done and answered all my questions. Highly recommend Najim!!
Patrick
15:45 22 Apr 26
Great experience. Derek was professional, friendly, clearly has lots of experience, and answered all my questions. Highly recommend.
Patricia Baker
14:45 22 Apr 26
Derek, the service person, is one of the best maintenance people we have encountered in many different countries. He quickly identified the problem with our hot water heater temperature control, explained the situation, arranged for a replacement and was friendly throughout. Thank you Derek and Hamco.
Astibus Gaming
00:20 22 Apr 26
Najim did our AC maintenance today and he was very knowledgeable, professional and polite. I am very happy with his services, will always request for Najim going forward! Thank you Hamco!
Sofian Rassy
16:31 21 Apr 26
Najim has been here many times for our maintenances, I am extremely pleased with his services today like always. He is very knowledgeable and experienced. Thank you Najim!
Olcay Sahin
16:23 21 Apr 26
Najim is very experienced, patient and honest very happy with his services today.
Jessie Everett
19:42 20 Apr 26
Derek at Hamco was excellent to deal with. Our furnace had stopped working, and he quickly diagnosed the issue and got it up and running again in no time. He was professional, knowledgeable, and explained everything clearly. He explained the price upfront and gave us some options. We really appreciated the prompt service and would highly recommend Derek and Hamco to anyone needing reliable heating service.
mallory knox
16:10 20 Apr 26
Najim was cordial, polite and very professional. The service was very well done and I am extremely pleased. Thanks so much !!
Timothy
14:45 20 Apr 26
Najim visited today to check the air conditioning unit and furnace. He was polite, efficient, and answered my questions in a professional manner. Thank you for the great experience.
Joanne Ernest
13:42 18 Apr 26
Derek came out for a service call and resolved our issue efficiently and thoroughly. He is fair, knowledgeable and a good communicator. Thanks again Derek
Emmanuel Cahigas
17:40 08 Apr 26
Najim and his techs Murray and Victor were professional, informative and on schedule. They replaced an existing gas tankless water heater. Would definitely keep in touch for future maintenance and reference.
Rhodi iliadou
16:56 07 Apr 26
Najim from Hamco has worked with us a few times and has always been very professional and helpful. Today he came in to make an adjustment to our backyard gas line so we can properly install our barbecue. He was able to trouble shoot and come up with a solution to connect our older barbecue and have it work within a few minutes. Thank you Najim!
Mary Lehto
18:00 04 Apr 26
On one of the coldest days in February on a weekend my furnace stopped working. I called Hamco because they do yearly maintenance checks. Derek called me immediately to discuss the problem and within an hour he arrived. There was a problem with the pressure switch and he fixed it. That was a temporary fix until a new pressure switch was ordered and installed this week. Derek was a life saver that weekend. He is very professional and knowledgeable. He answered all my questions and was very patient. I would highly recommend Derek. Mary Lehto
Derek
18:51 01 Apr 26
I had an excellent experience with Najim and Julian and highly recommend their service. They exceeded my expectations by not only resolving the issue with my heating system quickly, but also taking the time to explain how the system works.What really stood out was their extra care and attention—they also checked my hot water heater filter and showed me his to clean it myself.They are professional, knowledgeable, and genuinely helpful from start to finish.
Ray Boyer
21:42 31 Mar 26
Adam, Victor and Veronica did an excellent job installing furnace and air conditioner. Very professional and courteous. Cleaned and tidied up after work was completed. We were very impressed.
Charlene Kump
21:24 27 Mar 26
Amazing service again! Today, we had no heat. It turns we needed a new thermostat.One hour and 45 minutes from my phone call until a new one was installed.Najim was amazing as usual. Very friendly, knowledgeable and also patient with my non-verbal husband.I definitely recommend Hamco 😍
Kevin Farrugia
00:04 25 Mar 26
Derek came by to install a new intake and exhaust for our boiler. He did excellent, tidy work and finished quickly. Before starting, he clearly communicated his plan and asked for my preferences. I appreciated that he left the are clean afterwards, which seems to be rare when people are undertaking work outside.
Brooke Slinger
18:41 24 Mar 26
Stefan was professional, on time, respectful and most importantly, he got the job done!
Rick C
21:09 23 Mar 26
Derek from Hamco came by to take a look at our furnace because it was switching off and not hitting the set temp.He was great and figured it out rather quick and taught me a few things to be mindful of. I'll be calling them again if we have issues in the future and hopefully they send Derek again.
Josie Brucculeri
19:06 21 Mar 26
I had 3 air conditioners/heating installed. Jordan came to initially assess the situation. He is a very polite and thorough person. Once confirmed, his crew came to install the units. It was pouring rain& they not once complained. They worked diligently and effortlessly to install the units inside and out.They were all so polite and cleaned up after the job was done. I would highly recommend Hamco.
Michael Suffoletta
14:17 20 Mar 26
Many thanks to Stefan for attending and providing some great ideas on how to fix our problem. He was both prompt and professional
Pia Shaw
18:09 19 Mar 26
Hamco was very responsive when I woke to a -10 winter morning outside and my furnace not working. The response time was very quick . Christian did the service. He was very knowledgeable, and courteous.
Marilyn Hunt
18:42 18 Mar 26
Derek was very helpful in assisting me to choose which model of thermostat would best meet my needs. As he was installing it, he explained every step and how I need to maintain it going into the future. He was very safety conscious in instructing me about turning on and off the electricity, as he did. I appreciated his awareness of costs and quality of products. Thank you Derek for arriving so promptly after I called and spoke with Denise to get assistance. Give you 11+ starsWhen I contacted HAMCO, Denise was very responsive and provided the exact information I needed to understand and correct a "malfunction" of our thermostat. She was able to problem solve over the phone in an efficient and helpful manner when the first option did not work. I appreciate her patience and ability to describe next steps so clearly ...Thank You Denise
Chris
17:39 18 Mar 26
This is a family owned business that delivers top notch service. Right from the time they updated our heating, cooling and hot water systems almost 20 years ago we have enjoyed prompt, reliable and professional service. We experienced more of the same with the latest service and repair just provided by Derek.
Alan
18:36 16 Mar 26
Derek provided great service. His problem solving and interpersonal skills are top notch.
Gwen Miller
15:16 16 Mar 26
We Just had our annual furnace inspection done by “Derek” Derek was very friendly and considerate of our home while getting the job done. Thank you Hamco.
Olu
19:52 15 Mar 26
Derek's the man! Thanks for your help!
Nghia Tran quang
14:51 13 Mar 26
I am very happy with Najim who came and serviced my boiler today. Very professional,honest and patient. I recommend Hamco for everyone and tỏ request for Najim, he is awesome!!!
Sharon Hachey
16:57 12 Mar 26
We could not have been more pleased with our decision to deal with Hamco. The purchase of the hot water tank, the quality of the tank and the two installers exceeded our expectations. While installing several issues arose & their patience was exceptional. Previously we purchased a new furnace from them and both time the service was exceptional. We HIGHLY recommend Hamco.
karin weinberger
20:37 11 Mar 26
Very pleased with the insulation of my mini split heat pump with dual ports. Shemar, Nick, Adam F. and Veronika were all pleasant, worked together well, did a great job including cleanup in a timely manner.Hamco was recommended to me and I would highly recommend them to anyone else.
Dean Jeffries
01:32 11 Mar 26
Stefan provided the annual service for our Daikin heat pump which included a unit modification in response to a manufacturer's service bulletin --- all expertly handled. Completely satisfied.
Elisabeth Gedge
15:03 09 Mar 26
Derek just gave my furnace its annual check. He was prompt, efficient, and cheerful - done in about half an hour. He also offered to take my old filters (and there were many!) to the dump for me. I give him five stars for going above and beyond!
Trevor Geach
18:04 06 Mar 26
I cannot say enough good things about Stefan, Jordan, and the entire Hamco team. This is a team with as much integrity as they have expertise.We were experiencing intermittent outages and error codes on our 12 year old Viessmann boiler and after a competitor had been called out 3 times in the course of a week to fix it and told me I had to replace the whole thing I called Hamco to compare pricing.Not only did Hamco come in 50% cheaper than the competition on the quote to install a replacement the very next day, they encouraged me to let their tech take a look at the boiler first to confirm it in fact needed replacing.Stefan came out same day, exactly when they said he would and gave the boiler a full once over. He pulled it apart, checked the probes and ignitor, cleaned every nook and cranny, reassembled everything and flashed it back up. It's been burning hot since with no issues. Didn't even need replacement parts, let alone to be replaced outright!Thank you, Hamco. Jordan, Stefan and team will definitely be my first call for any and all our boiler and radiator needs moving forward!
Janice Floyd
13:17 04 Mar 26
Sincere thanks to Derek for fast, efficient, and friendly service! My furnace is working beautifully - kudos to the entire HAMCO team!
Andrea McDowell
01:53 04 Mar 26
annual inspection was excellent as always. Christian was prompt, friendly, professional, and efficient. 🙂
Patrick Cowden
21:46 03 Mar 26
On time and quick efficient service.
Don and Gladys Jeffrey
21:42 03 Mar 26
Our Lennox Elite furnace was noisy. Derek troubleshot for the cause, repaired it and thoroughly cleaned the fan. Now it is quiet and working great. Thanks for fast and excellent service.
Nicky Humphries
22:51 02 Mar 26
Stephan did a good job today on mom's furnace. Also took care to let me know of time frames. Very happy with service today.
Noyan Baykal
23:34 27 Feb 26
I reached out to Hamco for a hot water tank inspection. Najim and Camron arrived on time, were courteous and answered my questions patiently. I had a great experience overall!
Greg Cavanagh
15:30 26 Feb 26
Had Murray and Shamar install a HWT in our condo unit. Not an easy install by any means as it required a venting pipe upgrade to the buildings outside wall. The boys got it done and cleaned everything up really well. Thanks to Jordan our estimator for a very competitive quote which certainly helped in getting this over the line!
Marc
13:49 26 Feb 26
Najim did a great job testing my gas line!Thanks
Mariana Urbiola
22:20 24 Feb 26
Excellent service provided by Stefan. He was very professional, provided a detailed explanation and suggestions for solutions.
Dyanda Kasweka
21:40 24 Feb 26
Derek and Camron got our heater working in no time and we’re very kind!
Valon Qerreti
20:08 24 Feb 26
Derek was great did a fantastic job on my maintenance for my furnace he really knows his stuff
Suzanne Bader
16:55 24 Feb 26
Derek was professional, thorough and very friendly. Thank you.
Janice Spencer
18:01 20 Feb 26
Derek is a god sent!! Truly professional, fast unbelievable service!! I dealt with Bosniac for 30 years I was forced to look elsewhere. I called Hamco and Derek came in, found the problem, didn't inflate the price. Truly reliable company, as an Insurance Broker, I am confident in referring Hamco to them Thank you so much Hamco and Derek 😄, one very pleased customer
John Wiencis
16:57 20 Feb 26
Excellent service . Technician was thorough and personalable. .
Fatima
15:40 19 Feb 26
I was very pleased with Dereks service and knowledge very polite and very happy with his service
Rob Kisielewski
22:15 17 Feb 26
We were lucky to have Cameron as our HAMCO furnace service tech in our home today. He is, in my opinion, an excellent example of a professional who knows how to properly & courteously conduct himself in a residential setting.Cameron called just ahead of his visit to let us know he was on the way, arriving within the allotted timeframe with all necessary tools, equipment & documentation required for this service, packaged in a polite & warm greeting at the door. He asked if it was ok to wear his boots downstairs while working; once ok'd he carried his boots in hand downstairs and then back up to the foyer once done. Upon completion Cameron presented a completed maintenance report which was legible, clear & easy to understand. He cleaned up the work area, leaving it as clean as he found it. He is welcome in our home any time.
Bart Shamu
15:53 16 Feb 26
Derek from Hamco did a great job installing a new humidifier. We found to be: 1. Courteous - he called before showing up, 2. Considerate - he took off his boots when he arrived, 3. Professional - his workmanship was top notch and 4. Tidy - the work area was left clean
rob pointer
17:50 13 Feb 26
Thank you.. Derek check out my furnace and explained the condition and how well it is operating.Thanks again to Derek
Richard Bulinski
15:44 13 Feb 26
Cameron performed our annual furnace maintenance and did excellent work. He was courteous, polite and explained the steps in the process of the work he was doing. Very pleased with the high level of service he provided.
Charlotte Vanderhoek
18:11 11 Feb 26
Great service and clear information given by Derck. Thanks!
Mike Samson
16:47 10 Feb 26
Derek just did a great job servicing our furnace
Ron Lewyckyj
23:55 09 Feb 26
Quick Service. Derek took the time to explain what the issue was and he did to correct it. Issue resolved!
Jemil Jamieson
17:23 09 Feb 26
Derek was punctual, friendly and knowledgeable. Great service.
Susan Corcoran
21:24 05 Feb 26
Derek from Hamco came to our home and was able to diagnose a repeated problem that ended up being a blockage with a pump. He was friendly, knowledgeable and helpful. He spent the time to get to the root problem. Thank you Derek!
Tom Braun
18:12 03 Feb 26
Very pleased with the service Derek provided. He explained the work performed clearly and was very personable & polite.
Eric Meek
01:42 03 Feb 26
Our furnace stopped working on a Saturday morning, and Derek came out and gave an honest assessment of the situation (22 year-old furnace, so it was not surprising it had given up the ghost), and on the following Monday morning we had a new Daikin furnace installed, which is working great! Great experience with the sales and installation staff. They even loaned us a few space heaters to get us through the weekend dealing with sub-zero temperatures! Will not hesitate to work with Hamco again!
Adrienne Scanlan
14:44 29 Jan 26
My furnace was leaking all over my basement so I called Hamco in for a service repair. Christian and Cameron came on time, were very polite, clean and fixed the leak within only a few minutes. I also purchased my air con from this company. Always excellent service and communication. I highly recommend.
George Wright
06:15 28 Jan 26
Derek did a great job diagnosing and then repairing my HVAC system. Clear recommendations, fast, good quality service. Really pleased with the repair. Would definitely call Hamco again!
MaryAnn Dawe
16:43 19 Jan 26
Cameron came to service our furnace and water heater. It was just a maintenance call but it was done well and thoroughly.Cameron was professional and friendly. I was pleased with his visit.
Steve Burnside
21:49 15 Jan 26
Derek did a very good job. Explained everything to us. Very friendly and pleasant.
Rick Naylor
17:08 15 Jan 26
We recently connected with Hamco to inspect our boiler. We discovered serious CO2 issues and required immediate support given the cold January weather. Najim gave us a quote for a new condo boiler/ water heater, providing a competitive quote and arranging for immediate installation. Adam F and Shamar arrived the next day to take care of the challenging installation. After 10 hours of effort they left us with a warm, spotless home. They were highly skilled, efficient and courteous. We are VERY impressed with the entire Hamco team and highly recommend them.
Karen Sullivan
16:06 15 Jan 26
Derek from Hamco was fabulous in ensuring our gas fireplace was evaluated and he left it in working order. His knowledge is top notch and he provided this homeowner with fabulous education for future needs with the gas fireplace. A pleasant and knowledgeable employee of Hamco. Definitely recommend his services. The service call was punctual and did not need to wait long even though it was not an emergency call. Happy to be cozy again.
Jennifer Duarte
15:53 07 Jan 26
We had Derek come in and check the safety and maintenance on our gas fireplace and he was awesome! Very thorough, friendly and knowledgeable!
Charity Morrow
22:27 06 Jan 26
Derek came today to service our furnance. I had some questions- was very friendly and knowledgeable.
Amjad Junaid
15:42 30 Dec 25
We had a new furnace and A/C unit installed by Hamco 7 years ago. We get both units serviced annually by Hamco. The technicians have always been very friendly, courteous, and professional. This year, there was a leak in the water line leading to the humidifier on the furnace. Hamco advised me that this was not covered by the furnace warranty. Regardless, they agreed to fix the problem without charge. Derek was great and he fixed the problem quickly and efficiently.
Dave May
23:16 20 Dec 25
Najim came out last minuiteVery professional and when the bill came I was surprised in a good way. Will use again if needed.
Johnny
16:33 18 Dec 25
Cameron the tech did a thorough and efficient clean up on my furnace. Also helped me change the thermostat batteries.
Bobbie Smith
19:03 16 Dec 25
We just had a second furnace installed through Hamco. The AC will be installed on Thursday. Veronica and Victor arrived to our home as promised the day before by Steve, the tech who diagnosed our 14 year old furnace needed replacement. So appreciative of the service. I would recommend Hamco to anyone who wishes to experience great customer service and workmanship.
bob King
16:03 16 Dec 25
I would give both Derek Moron and Bill Black five star ratings for service to our furnace and its replacement when that was found necessary. Stayed tuned for comments on the scheduled replacement tomorrow,
Colleen Collins
22:09 11 Dec 25
Very satisfied. Stefan and Cameron did an excellent and saved us money. I highly recommend Hamco
Luigi Iantomasi
23:55 10 Dec 25
Stefan was fantastic. Patient and explained everything to myself and addressed all my questions. Fantastic work.
Phil Botham
20:30 08 Dec 25
Great techs all around.Curtious and experienced without all the upselling.;). Definitely worth having Hamco for installs and maintenance.Tnxs Stefan & Derek.....pb Dundas
Maxine McGoldrick
19:41 08 Dec 25
This company is amazing! Great staff and quality services. Jordan and Andrew have exceptional knowledge and work ethics. Congratulations Hamco!
Deborah Duffie
18:27 08 Dec 25
Recently had Cameron come to check up on the furnace. He was on time, polite & thorough in his assessment. Would recommend this company if in need of a new heating/cooling system.
Aunt Nay
15:57 07 Dec 25
We got tankless and furnace service. Christian showed up on time as scheduled. He was polite, knowledgeable and quick. Offered tips and tricks for us to maintain our equipment and provided a full report for each appliances. We asked for a flush on our tankless but he advised that we were missing components to effectively do it. He offered the solution and timeline when we could do the service without causing issue to the unit.10/10 recommend Hamco...well Christian who represents themWill have them back again for future service and or repairs
Laura M
22:18 06 Dec 25
Cannot recommend them enough! A great company if you’re looking for heating or cooling services. 10/10!
Elliott Oomen-Hurst
18:33 03 Dec 25
HAMCO was able to schedule an install for my water heater within a week's time and the work was done very fast and they cleaned up well. I'm very happy to have had HAMCO replace the Reliance water heater rental in my house and I will be seeking their services in the future for other heating/cooling work if I need it. They were also very flexible about hanging on to the rental unit and returning it for me, which I appreciate very much.
mike m
19:38 01 Dec 25
Thanks very much for a great furnace check up today Cameron, Monday Dec 1,2025Thanks Mike for a great furnace tune up today, Hamco is a trusted name to me for installation and maintenance
Joe Botello
22:59 27 Nov 25
I’ve recently had my annual furnace inspection for the winter season.HAMCO has always provide exceptional service.Joel is one of HAMCO’s technicians which I will praise him for his honesty and knowledge on maintaining optimal furnace operation during the winter months.It’s very reassuring that technicians such as Joel are looking out for their customersThank you Joel!
Mike Anderson
22:45 25 Nov 25
Cameron was excellent. Very personable and efficient. Service visit was very timely. I have used Hamco for many years. Very reliable company.
Leah Casselman
23:04 20 Nov 25
Staff showed up during the alotted time and did a great job.Thank you Christian!
Mike Stewart
12:20 18 Nov 25
Cameron the technician performed the yearly maintenance on our Furnace and was very professional while he performed this service. He even took his boots off upon entering our home and asked if he could use the laundry sink in order to clean a part so that it would work better. I was very happy with his work.
Deborah May
16:13 14 Nov 25
Moved in to a new home with a pretty new furnace, heat pump and smart thermostat. The later two I know nothing about! Had HAMCO come to do a maintenance inspection. Christian was courteous and polite. Explained the furnace and some features on the thermostat and answered all my questions. Have used HAMCO in the past which is why I didn’t hesitate to call themagain.
elissa filson
19:21 12 Nov 25
Christian did an amazing job, Thank you for the professional service
Google Rating
Based on 682 reviews
×
For Immediate Assistance
LATEST NEWS
Emergency Furnace Repair in the GTHA
If you require after-hours emergency furnace repair over the holiday season, don’t hesitate to contact HAMCO Heating & Cooling by calling us at: (905) 527-1049. We know that when your heating system breaks down after-hours, you want a technician that can promptly...
Pro Tip: Check the Furnace Filter
One of the best things you can do to maintain your furnace and indoor comfort is to regularly check the furnace filter and replace as needed. Even if you’re using a filter rated to last longer than 30 days, we always advise checking the filter monthly. There are a...
Best Furnace to Install in Southern Ontario
Homeowners looking to upgrade their heating system always want to know which is the best furnace to install. At HAMCO Heating & Cooling, we believe York and Daikin are two of the best HVAC manufacturers and would recommend any of their furnaces; however, we...