HVAC FAQ

Why is ventilation important for proper indoor air quality?

At one time, it was possible to achieve natural ventilation in our homes by simply opening a window. However, with growing concerns about rising energy costs, we have been busy making homes “tighter” from an efficiency standpoint. Armed with weather stripping and caulk guns, we have eliminated air leaks from our homes. Unfortunately, that means contaminants have no way to escape.

Pollutants in your home’s air can cause poor indoor air quality, which may cause dizziness and headaches, plus aggravate allergies and asthma. That’s why Daikin offers ventilation systems that help remove contaminants by exchanging stale, recirculated indoor air with fresh, filtered outside air.

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HAMCO Heating and Cooling Ltd.

4.8

Based on 588 reviews

See all reviews Write a review

Susan

14:29 06 Oct 25

I've dealt with HAMCO for a few years now and I've always found their service to be honest and reliable. I recently had my tankless water heater de-scaled by Najim, one of their techs, and he was fantastic! He took his time, paid attention to detail, was clean and courteous. He even took a look at my furnace and made an adjustment for free! Highly recommend Najim and HAMCO overall. They might be on bit of the expensive side, but you get what you pay for really....

Karen Antoniuk

15:37 01 Oct 25

Had my furnace serviced by Cameron today. He called ahead with an estimated arrival time. He was extremely polite and personable. Left workplace neat and tidy. Good addition to HAMCO!

Dahyabhai Patel

14:53 29 Sep 25

Great to work with - thank you!

Marta Stiteler

10:40 24 Sep 25

We have an older boiler furnace and I know it's in good hands with Joel and Cam. Joel is so knowledgeable about the furnace and the two of them worked tirelessly at a recent long needed cleaning appointment. Joel and Cam are incredibly respectful and a pleasure to deal with. Hamco definitely has my future business!

W Arabo

18:38 22 Sep 25

Joel arrived on time, started diagnoses right away, found the problem, explained it to me and addressed it. Gave me hints on equipment cleaning and upkeep. Highly recommended.

Jon Benoit

16:59 12 Sep 25

I had my furnace and AC units serviced by Christian and Cameron, and the maintenance was thorough and professional. The technicians arrived on time, were friendly, and clearly knew what they were doing. They cleaned and inspected all key components, making sure everything was running efficiently. I appreciated the clear explanations and honest feedback about the condition of my systems. Overall, the service gave me peace of mind heading into the new season.

Jacob Muirhead

19:11 28 Aug 25

Christian and Cameron came by to do maintenance and cleaning on my 2 Daikin heat pumps. Super professional, courteous and nice guys. Would strongly recommend

Emily Ferko

19:15 27 Aug 25

We had an excellent experience working with HamCo for our new heat pump installation. From the very beginning, Andrew guided us through every step of the process — from choosing the right unit for our home (we went with a Daikin heat pump/furnace combo) to walking us through budget details and keeping everything honest and transparent. When we decided to also add a hot water heat pump, Andrew made that seamless too.He was incredible with the paperwork for the Ontario government rebates, making sure we had everything in order for both the heat pump and water heater. The installation itself was smooth and even finished a full day ahead of schedule. The team removed and returned our rental hot water heater, handled the refund process for us, and kept the house spotless throughout. Every installer we met was polite, professional, and clearly knew their stuff.It’s been about a month since the install, and everything looks fantastic and is working beautifully. We couldn’t be happier with the results and highly recommend HamCo to anyone considering a heat pump.

Richard Despres

14:24 20 Aug 25

Great work on AC maintenance. Cameron and his partner showed up on time and did a nice job. Very respectful. I’ve been using these guys for all my HVAC work for many years.

Greg Shires

18:44 18 Aug 25

Wonder experience! 5 out of 5Great technician, very professional and respectful. Absolutely recommend for anyone who needs work , or has questions about their system.

Sarah Najbor

14:54 15 Aug 25

HAMCO was amazing! They recently installed a new air conditioner and water heater for us and the process was quick and easy from start to finish.Thank you to Bill and the team!

Kelly Jean

18:54 14 Aug 25

Hamco came to do a maintenance check on our AC today. They were very professional and polite. Stefan quickly checked all the components of our AC unit and ascertained every thing was in good working order! Stefan was very personable, knowledgeable and politely answered all our questions. Well done Hamco!! We were very pleased with the services we received today!

Ray Greenspon

14:27 14 Aug 25

Veronica and Shamar did a superb job for us installing a Daiken ductless heatpump in our 14th floor condo. They laid out drop sheets and were in and out in less time than we anticipated. We had two issues with the installation as they were working and Veronica made on the fly adjustments which made things perfect for us. Best of all the unit runs quietly and is keeping us c-o-o-l. Thanks. Shelly and Ray

Anthony Tigani

14:14 08 Aug 25

We had our furnace serviced by a very pleasant and knowledgeable young man named Christian. He answered any questions I had and explained everything fully. Thank you, Christian…

James Stayzer

18:29 07 Aug 25

I can not recommend them enough. We had trouble with our AC and they helped get us up and running. Shane and all the different technicians were very professional and great to work with! On time, knowledgeable and fixed the problems. Highly recommended!

Tessa Wakefield

02:42 07 Aug 25

Great experience with HAMCO! Joel and Stefan were on time, professional, and very knowledgeable. They quickly fixed the issue with my HVAC system and explained everything clearly. No upselling—just honest, quality service. Highly recommend HAMCO and especially Joel and Stefan!

Ron Hatcher

17:46 04 Aug 25

Hamco installed a York air conditioner in June 2025. Excellent job by Veronica and Neil. Bill in sales also very helpful. Will be calling about a water heater soon

Irene Amog

19:11 29 Jul 25

Christian was very courteous and professional when he came to do the yearly maintenance on our AC. He informed me what he was doing and if there were any concerns. Completed the work in a timely manner. Thank-you Christian and HAMCO!😊

BRENDA GIOSI

15:24 24 Jul 25

We had Joel from Hamco Heating and Cooling - today to fix a problem with our a/c. He was prompt, courteous, knowledgeable and efficient. He diagnosed the problem in minutes and had us cooling in no time. Very reasonable price as well. Excellent customer service.

Melanie Lopes

21:02 17 Jul 25

Very thankful for the quick response we received on the hottest week of the year. Our technician Christian was very friendly, kind and professional. He fixed the issue very quickly and explained what to do to help prevent it from happening. Tara in the office should also be credited for their professional and friendly assistance as well. Thanks to both of you for keeping us cool this summer.

Jennifer Scott-Penich

02:51 11 Jul 25

HAMCO always provides reliable service in a timely manner. The technician, Stefan, was friendly and knowledgeable. It’s always a pleasure doing business with HAMCO.

Carol Lukasik

17:10 07 Jul 25

Had maintenance done one my furnace and air conditioner today. Christian was very professional, personable, and knowledgeable.

Julie Abraham

21:34 03 Jul 25

Incredibly prompt and helpful after hours service. Looking forward to working with HAMCO again. Thanks!

Elizabeth Clinton

18:24 30 Jun 25

New Review - June 2025Christian arrived on time, fixed our A/C and stayed around to make sure it was working. He worked very quickly and was very courteous and professional. I told him that, if my kitchen wasn't so hot, I would have given him some homemade cookies! Well done, Christian.

Michael J. Mychailyshyn

15:57 28 Jun 25

Christian did a quick and efficient annual maintenance check on central AC and furnace providing peace of mind for the cooling season...thanks Christian

jon kosior

16:25 27 Jun 25

Hamco heating came today checked out my a/c , technician very respectful attentive to all aspects of his tasks , gave me the bad news , my 30 plus year old unit is failing , but the professional person he is , I respect his findings and will seek the best avenue.

Mitch Wagner

18:12 26 Jun 25

Stefan was here right on time and got the work done super quickly and professionally. Always great service from Hamco.

Ian Hassell

22:48 25 Jun 25

Excellent service. Very professional and friendly.

Enzo Rizzo

01:54 24 Jun 25

Our AC stopped working during a heat wave. I called well into the evening, and Najim came at 9 p.m. to help us.He was friendly and knowledgeable. After one look at the AC unit, he knew what was happening and communicated it to me effectively and clearly.Twenty minutes later, AC was up and running.

Glenn Pfab

22:15 23 Jun 25

Stefan show up on time , diagnosed the problem, and quickly ran out to get the part, installed it and the air conditioner was up and running in under an hour! It was 48C and he solved the problem....thanks so much Stefan and Hamco!

JUDIE MCKENNA

20:49 21 Jun 25

I have dealt with Hamco for many years now and have always been very happy with the service I received both from the office staff and the service men. I had a call on Friday from Steve and Stefan and they both were very professional and experienced. I will definitely be getting them to come back for my annual furnace and air conditioning maintenance check up.

Rick H

20:24 18 Jun 25

Today we had our boiler inspected and cleaned, the Technician was Najim and we are so pleased with his work. Arrived on time and was so very nice to speak to, he is knowledgeable and does his work in a timely manner. He will always be welcome back to our home. An asset to Hamco Heating and Cooling, Thank you Najim for a job very well done,Rick and Dianne Hogg.

Cam Morton

16:05 18 Jun 25

Polite, fast and did a good job👍👍

Gayle Terryberry

13:55 18 Jun 25

Najim very cordial friendly service

Lynda Ruffo

00:42 18 Jun 25

Another grest service by Christian! On time, professional, knowledgeable, and friendly.

Maggie Tang

14:29 06 Jun 25

We had Christian from Hamco to do maintenance on our ductless AC unit. He contacted us ahead of time before he arrived, and he checked and cleaned all our units professionally, and tidied all area he worked. He also provided us some advices on the units. During his work, he also communicated with us his steps. Highly recommend Christian and truly appreciate his services!

Christopher Furtado

14:26 27 May 25

Recently called Hamco to install an ecobee at my parent’s house. Christian came out and installed the new smart thermostat and had it up and running within 30 mins! Christian was very professional and was able to help me understand the basic functions of the smart thermostat.

Dawn Spencer

17:08 22 May 25

Very pleased with Hajim. He was courteous and did a great job. He was very thorough with my old furnace and explained his findings.

Sheryl Stacey

19:07 16 May 25

Steve and Ansley came to my house and did a great job explaining how my Air Conditioner actually works and showed me how to maintain it. They were so knowledgeable, kind and asked whether we had any questions. You are so fortunate to have these pleasant and knowledgeable people working for Hamco. I highly recommend Hamco for all your Furnace and Air Conditioner needs.

Osman Osman

16:43 15 May 25

They are very professional and helped me cancel an energy contract. They did an amazing job installing my equipment even help fix a circulation issue that I’ve been having for years. Got the bill credits that was promised within a week.

Debra Krar

14:48 14 May 25

Service person was very professional: prompt, polite, knowledgeable.

J Hill

22:53 11 May 25

I would recommend Hamco for their professional advice and courtesy.Ainslea and Nolan were both helpful and much appreciated

John Del Rossi

19:49 06 May 25

Today I had my furnace and AC checked ,serviced and repaired where necessary. The technician was Najim and he did an outstanding job on all services required. He is truly an asset to Hamco .

Raquel Montoya

17:14 02 May 25

The Heating and Cooling guys from Hamco have always been quick to respond to my HVAC needs. Najim, Steve and Ainslea are highly knowledgeable and experienced technicians. I was greeted with professionalism and kindness.They were on time, repaired my motor on the furnace in a matter of minutes, explained everything that they were diagnosing, and they did a thorough job. They were quick, clean, trustworthy and very helpful individuals. They walk you through any problems, recommendations and ensure your system is running optimal. Even when I experienced an issue, Shane the Supervisor was quick to resolve the issue with no hesitation. Hamco prices are very reasonable and I plan to have these guys take care of my HVAC needs in the future. Thank you for a job well done!!

Adam Wills

14:41 02 May 25

Christian came by today to address a gas leak in our furnace. He arrived in his scheduled window and called when on his way. He quickly diagnosed the issue, showing me where the leaks were. He was able to complete the work quickly and was very professional the whole way. Would definitely use HAMCO again.

Deb Cliffe

15:35 01 May 25

Hamco was able to respond to my call within a couple of hours.Najim was thorough and fixed the problem. He was also friendly and courteous. I’ve been with Hamco about 5 years and continue to be happy with my decision to use this company

barry anderson

15:44 30 Apr 25

We had our annual service yesterday. Najim, your technician arrived on time. Very knowledgeable professional and patient. Usual good service. No complaints as usual with HAMCO service.

Siggy Wong

14:35 29 Apr 25

Only good things to say about Hamco. Najim was very friendly and efficient. I have had the privilege of working with many of the Hamco crew over the last few years through my job and have had them inspect my own A/C unit.

Nelo Chuka

19:28 11 Apr 25

Christian, very pleasant young man, very professional. Job well done. Knows his job well.

Bob M

15:29 08 Apr 25

The best service experience we strongly recommend them for Heating and Cooling services. The service person was professional, efficient, arrived on time and completed our boiler service perfectly at the quoted cost. We are new customers and HAMCO will always be our first choice!

Subhas Ganguli

16:29 24 Mar 25

They did a lovely job servicing our furnace in March 2025. Ainslea was very neat and left the place spick and span. Our dog also thought she was a blast.

Alicia New

15:25 18 Mar 25

We can't say enough good things about our experience with Hamco. Andrew was so great to deal with and checked in about our satisfaction regularly. Najim and his team worked so hard and efficiently to get our gas fireplace installed and also to put a new vent in our chimney. He communicated well and checked in regularly to make sure we were happy with his work. Varonika was also very helpful in problem solving and coming up with solutions for us to make our fireplace looked way better. Her attention to detail was very impressive.We experienced a massive flood last July and have had many workers into our home. Hamco has been the most professional, efficient and kind. Our fire place looks and works great. Thank you Hamco!

Mike Johnston

16:51 17 Mar 25

Fast, efficient, and friendly ! Many thanks to Josh and Shemar for a great job this morning installing the new water heater.

Shannon Knutson

12:56 15 Mar 25

Ainslie is knowledgeable and patient and we loved having her here to service our furnace and humidifier. She answered our questions and made the process super easy and comfortable.

Joni Beintema

16:17 03 Mar 25

Thanks HAMCO for servicing my furnace for its regular maintenance check up. Ainsley the technician was professional and friendly. She did a thorough job in a timely manner.

Ron Mellish

00:01 28 Feb 25

I called Hamco to learn more about a humidifier for my furnace. Hamco installed two HVAC systems in my home over the past many years...great service and price...no need to shop around. Tech Najim installed the humidifier this afternoon. Enjoyed speaking with him as he worked. He explained what he was doing, answered my questions professionally. Neat work and cleanup. I highly recommend Hamco staff who responded to my questions and Tech Najim who installed the product. Thank you.

Sarah E

17:50 20 Feb 25

After a bad experience with another HVAC company can’t sing the praises enough of HAMCO. Will be continuing to use there services moving forward. Thanks to the HAMCO team for the advice and excellent work!

Janette Thompson

14:37 27 Jan 25

We were recently faced with our 17-year-old furnace breaking down and beyond repair. Despite the extremely cold weather that resulted in a larger number of service needs for Hamco, Najim met with us in just over 24 hours, spent time accessing and explaining the situation and offering the best options for the needed replacement. He worked to get us up and running quickly with a Saturday install and left us with a space heater to ease discomfort overnight. He was personable, knowledgeable and took time to ensure we were happy with the decision we made. It wasn't an expense we had planned for but Najim eased the situation with his excellent customer service. He was happy to answer any questions we had and worked to ensure we got the best price and service possible. Veronika and Shemar arrived early the next day to replace our furnace with a new Daikin. They were also personable, professional and efficient. We feel fortunate to have Hamco to count on with HVAC needs. They have a great team of people who also seem to greatly appreciate how they are respected and treated by the company. It's wonderful to have a local family-owned business providing excellent service. We've been with Hamco (initial installs and service plans) for 17 years and plan to continue with them as needs arise.

dolly visockis-bruyn

19:58 24 Jan 25

great staff Christian and Ainslea I give them a10++++ very informative polite and knowledgeable answered all questions and did a great repair job

Luke L

14:27 24 Jan 25

I had some fernace issues during the cold snap. Christian from Hamco showed up the same day to service. He was super informative and helpful. Would definitely use Hamco and Christian again for any HVAC needs.

bruce hoyle

20:26 22 Jan 25

I called Hamco and Christian showed up the same afternoon. Took care of everything and recommended protection plan, which I bought. I have been relying on Hamco for many years because of expert technicians like Christian who work quickly, competently and who explain what is going on.

K Hartford

20:57 09 Jan 25

HAMCO does my furnace/AC annual maintenance. Also diagnosed and replaced our furnace humidifier, which had begun leaking. Karim is knowledgeable , friendly, and professional. Great service, very pleased!

Joel Sandink

13:41 03 Jan 25

Our furnace died on us on one of the coldest nights of the year at the start of the christmas holidays. We immediately started looking around for a new furnace and settled on Hamco for a few reasons. First off the original furnace which had lasted 50 years was installed by them and with that track record they seemed like a good choice. 2nd Jim the sales person was great at understanding what we needed, helping us figure out what furnace was the best fit for our needs and even provided us with an extra heater till the new furnace was installed. 3rd The install team of Josh and Nick got the job done efficiently and explained everything to us. The furnace was working that day and was much more efficient then our old furnace.

Bonnie King

22:48 21 Dec 24

Najim was very knowledgable and he quickly diagnosed a serious problem with our furnace. He reinstalled the venting, put in a new motor and thermostat. He was very efficient, polite and our furnace is working perfectly again! I highly recommend HAMCO and technician Najim and will definitely call them for future service needs. Thanks!

N Al

22:00 12 Dec 24

Today I received maintenance service form Najim. Next time when I need service definitely I'll ask for Najim. Najim is an expert in his field, his work was excellent, he answered and explained everything thoroughly. On top of all he was very friendly with a great personality.

Ronald Castellani

21:26 12 Dec 24

The repair by Najim for Hamco was timely, and worked perfectly. Thanx.

Aurelia Shaw

21:14 22 Nov 24

We've received good service from Hamco for many years. Today a new service person named Najim arrived to do the regular maintenance on our furnace. He was thorough, friendly, answered our questions clearly and made sure we understood how everything had been updated. I have no difficulty recommending this company.

Danielle Drake

14:08 13 Nov 24

When our AC stopped working this summer, we were so thankful to receive professional and friendly service from Hamco. Mike was quickly able to identify the issue and had parts on hand to get it fixed the same day!

A Marini

01:19 08 Nov 24

Thanks to Nolan T. for doing such a great job on our annual furnace maintenance! See you soon!

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!

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 V

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!

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

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

18:18 22 Oct 24

Mike Kawa is the best technician I have ever had the pleasure of working with

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!

Brittany Provenzano

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.

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

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

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.

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.

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

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!

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

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

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!

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 Hamco

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