Skip to content
Serving Hamilton, Burlington, Oakville & Surrounding Since 1946

Ductless Service, Repair & Maintenance

Expert Ductless Air Conditioning & Heat Pump Service

Proudly Serving Hamilton, Burlington, Oakville & Surrounding Areas Since 1946

Since 1946, HAMCO has been the premier choice for professional ductless repair and maintenance services across Hamilton, Burlington, and Oakville. Since our founding, we have built our reputation on honest advice, expert craftsmanship, and unmatched technical skill. Today, we remain the area’s most trusted specialists for keeping your mini-split and heat pump systems running at peak efficiency. When you need an HVAC partner who values your comfort as much as you do, the team at HAMCO is ready to help.

Professional Support for Your Ductless Mini-Split

Emergency Ductless Repair

When your ductless mini-split suddenly stops working, you shouldn’t have to endure uncomfortable indoor temperatures. Whether your system quits during a summer heatwave or fails to heat your home in the dead of winter, you can count on HAMCO. Our expert technicians arrive promptly, accurately diagnose the glitch, and quickly restore your climate control. We service all major makes and models, bringing the reliable, high-quality workmanship you need to get your home back to normal.

Preventative Ductless Maintenance

Routine care is the single best way to protect your investment and ensure your ductless system operates at peak efficiency. Whether your ductless unit provides targeted cooling, supplemental heating, or full climate control, regular operation naturally leads to everyday wear and tear. Scheduling regular preventative maintenance tune-ups ensures your system runs reliably, keeps your monthly energy bills low, and continues to deliver clean, comfortable air to every room in your home.

Common Questions About Ductless Service & Repair

Why is my ductless system blowing room-temperature air?

When a ductless unit stops throwing properly conditioned air, it is usually tied to an airflow obstruction or a mechanical failure. Before calling a technician, double-check your thermostat to ensure it hasn’t accidentally been switched to “fan only” mode. If the settings are correct, the issue is likely a heavily clogged air filter, a refrigerant leak, or a failing compressor. Because dealing with refrigerant and complex electrical components requires specialized tools, these issues must be diagnosed and resolved by a licensed technician.

What actually happens during a professional ductless maintenance visit?

A professional maintenance visit is a comprehensive, multi-point inspection and cleaning. Our technicians don’t just look at the unit; we deeply clean the indoor blower wheel and evaporator coils, clear the condensate drain lines to prevent leaks, inspect the outdoor unit for blockages, test all electrical connections, and measure system performance to ensure it is drawing the correct amount of power. We leave your system operating as close to “factory-fresh” condition as possible.

Do modern ductless systems work efficiently in freezing weather?

Yes, modern cold-climate ductless heat pump systems are specifically engineered to provide highly efficient heating even during harsh Canadian winters. Utilizing advanced inverter technology, they can extract heat from the outdoor air at incredibly low temperatures. However, to ensure maximum comfort and efficiency throughout the entire winter, regular maintenance is required to keep the outdoor coils free of debris and ensure the defrost cycle is functioning exactly as it should.

How long does a ductless mini-split system typically last?

With regular professional maintenance and proper daily care, a high-quality ductless system typically has a lifespan of 12 to 15 years, and often even longer. The greatest determining factor in how long your system lasts is how well it is cared for. Neglecting routine maintenance forces the system to work much harder to move air, accelerating wear and tear on the compressor and drastically shortening the equipment’s overall lifespan.

Can I clean my ductless filters myself, or do I need a professional?

You can absolutely clean the basic air filters yourself! In fact, we recommend checking and rinsing your indoor unit’s plastic mesh filters every four to six weeks, especially if you have pets or smokers in the home. However, DIY filter rinsing does not replace professional maintenance. A certified technician needs to deeply clean the internal evaporator coils, sanitize the condensate drain line, check electrical connections, and verify refrigerant pressures to keep the entire system safe and efficient.

Why is water leaking or dripping from my indoor ductless unit?

Water dripping from an indoor unit is almost always caused by a clogged or restricted condensate drain line. As your ductless unit cools the air, it naturally creates moisture (condensation), which flows outside through a small drain tube. Over time, dust, algae, and mold can build up inside this tube, causing water to back up and overflow into your home. If you notice a leak, turn the system off immediately to prevent water damage to your drywall and call for a professional line clearing.

Proactive Maintenance Tips for Homeowners

While professional service is vital, you can keep your system running smoothly between visits with these simple steps:

  • Keep the indoor unit free of dust
  • Make sure to replace or clean your air filter at least once every 90 days
  • Keep the outside unit uncluttered and free of natural debris
  • Give both the indoor and outdoor unit space to function without clutter
  • Remove snow and ice from the outdoor unit

Transitioning Your Ductless Mini-Split Heat Pump from Heating to Cooling

One of the best perks that come from installing a mini-split heat pump in your home is that now one HVAC system does the job of two. A mini-split heat pump can both cool and heat your home depending on its settings. If you’re ready to transition your heat pump from one mode to another, make sure to do the following first: 

  • Clean/replace your air filters 
  • Transition your remote to COOL instead of HEAT (or vice versa) 
  • Check the outdoor unit to make sure it’s clear from debris 
  • Call for annual maintenance
Cynthia Devor
Cynthia Devor
22:45 12 Nov 26
Today we had Victor and Nick G. from Hamco installing a brand new furnace. These guys were excellent. They were professional, friendly and worked diligently until they got... the job done. All the cleanup was finished and they were out. They communicated to us clearly when there was going to be noise or an odour from the glue or the new furnace turning on. Really fabulous customer service and excellent work. Things are running smoothly again. Thanks Hamco!read more
Deanna Pantitis
Deanna Pantitis
17:18 12 Nov 26
Steve came to our house, figured out the problem with our furnace, and fixed it quickly. He was also really nice and extremely helpful. We are new Hamco customers, and will... always use them in the future from now on.read more
Derek came in worked quickly gave some solid advice. Thanks Derek.
Paul Nichols
Paul Nichols
15:26 11 Nov 26
Christian was friendly and thorough - explaining what was being done and providing suggestions for future maintenance. He was patient and was happy to answer all our... questions. We really appreciate his work and recommend HAMCO to our friends and neighbours.read more
Peter Norris
Peter Norris
16:32 08 Nov 26
Andrew came out to explain the furnace options available, and we decided on the York 2-stage, high-efficiency 60,000 BTU furnace.The new furnace arrived very quickly, and... Cory and his tech installed it. They did a great job. Both clearly knew what they were doing, and they left everything clean and tidy when they finished.We’ve had the furnace for nearly a month now and couldn’t be happier. It’s much quieter than our old one, and the house feels noticeably more comfortable. Hamco are incredibly professional, and I wouldn’t hesitate to recommend them.read more
kathy speare
kathy speare
20:50 06 Nov 26
Derek came to service our furnace and noticed a potentially dangerous carbon monoxide leak. He thoroughly explained what he was doing and patiently answered all our... questions.read more
Katie Maybee
Katie Maybee
20:31 06 Nov 26
We have used Hamco’s services for years. They provide quick, efficient and professional service. Among others, Derek has been so conscientious, and very pleasant to deal... with. We have referred Hamco many times and would definitely recommend using Hamco.C. W. Maybeeread more
Daniel Miller
Daniel Miller
17:38 05 Nov 26
Derek was great! Professional and efficient
trudy cooper
trudy cooper
02:58 31 Oct 26
Had a very positive experience today with Najim when he came to replace the blower motor in my furnace. He arrived in the designated time slot I had been assigned, was... respectful of my home, completed the work required & answered my questions.Given my initial interaction with Steve when he came to assess my problem and today’s experience with Najim, I would not hesitate to recommend HAMCO.And amen for my A/C being back on! Thank you.read more
J Smith
J Smith
12:31 30 Oct 26
Many thanks to Derek of Hamco for his thorough work of servicing our 40 year old residential boiler.. With now taken care of we can be confident of having problem free heat... this winter. Thank you , Derek.read more
Ross Prince
Ross Prince
12:01 30 Oct 26
Technicians arrived on time, fully equipped, and ready to get started. They arrived and explained each step of the process clearly and patiently answered all my questions,... while welcoming my suggestions and ideas. Their professionalism, preparedness, and willingness to listen was appreciated.It was refreshing to see a female technician working confidently in the field—a positive reflection of how the profession continues to evolve. Her knowledge, professionalism, and willingness to answer questions and welcome ideas made the experience all the more positive.They were very accommodating and flexible, allowing me to arrange for a local independent scrap metal collector, who is also a friend, to pick up the scrap metal. I appreciated their willingness to accommodate my arrangements and work with me to find a practical and beneficial solution.The end result. It was a long day, and the crew worked virtually nonstop, finishing at 7:00 p.m. They cleaned up everything, removed all scraps and containers, and then took time to explain the operation of the newly installed units.Shout and big thanks to Veronica, Victor,Cory and Nickread more
Andy R
Andy R
20:48 28 Oct 26
Shemar and Cory from HAMCO came out to install our new furnace and their work was outstanding ! Super nice guys and very professional. Thank you both ! Highly recommend both... of these installers and using HAMCO for installation and service. Thank you again for the great service 👍read more
D M
D M
20:35 27 Oct 26
Derek was thorough and explained what was happening. Very helpful.
S M
S M
19:20 26 Oct 26
HAMCO staff (office, technicians) are super friendly and helpful. Had the annual furnace maintenance today - Thanks Derek!
Mitch Wagner
Mitch Wagner
16:25 26 Oct 26
Stefan was here right on time and got the work done super quickly and professionally. Always great service from Hamco.Update Oct 2026: Derek came out and serviced our... furnace. He was very professional and did a great job!read more
Melissa Charnock
Melissa Charnock
14:13 21 Oct 26
Steve did an excellent job of cleaning and servicing my furnace. He was thorough and efficient, ensuring the humidifier filter was good for another year. I was very happy... with his work.read more
Mark Clem
Mark Clem
00:37 21 Oct 26
Derek came serviced the furnace, A/C and one of three gas inserts that you can still get parts for. He then removed the other two gas inserts that were older than him and... documented all the measurements necessary to get replacements .read more
Alexandra Bickerton
Alexandra Bickerton
22:10 20 Oct 26
The company I had servicing my furnace/AC was purchased by HAMCO. I called to get an appointment for winter maintenance. My appointment was for today between 12 and 4. At... 10:30 I got a call from Derek asking if it would be okay if he came in 20 minutes. Fine by me. What a great guy. He answered my questions, did the work and was so very polite. Thank you Derek.read more
Marianne Martyn
Marianne Martyn
17:30 20 Oct 26
Very happy with Derek’s visit to service my furnace.
Jim Mercer
Jim Mercer
20:10 19 Oct 26
The Fall checkup of my furnace was carried out in a very methodical mamner by tech, Derek. He was pleasant and personable.
Rachel Ann Lamont
Rachel Ann Lamont
22:44 17 Oct 26
We tried to fire up our boiler system today and it didn’t work! I called Hamco and Stefan came out within a few hours and did a fantastic job figuring out the issue and... solving it on the spot! When all was said and done, the bill was under $200. He showed me how I could prevent the problem from happening in the future and also provided advice about maintenance of the system. He was very friendly with our dogs and all around a great service person. Thanks Stefan!read more
Jon M
Jon M
22:40 17 Oct 26
Stefan was great! Got our radiator heat back up and purring in no time.
Ron Eady
Ron Eady
02:03 17 Oct 26
Great service from the Hamco team that installed our new boiler system - Shemor, Murray, Victor and Riley. 👌👌
Joan Barthel
Joan Barthel
20:49 13 Oct 26
Derek was the technician who came tomdo the maintenance on our furnace.He came first thing as we had requested an early appointment.He was very professional and very... personable.Explained the invoice to me.I hooe I can request him next year.J.read more
Harsh Pandya
Harsh Pandya
20:21 12 Oct 26
Great service! He was professional, friendly, and fixed my furnace quickly. Everything is working perfectly now. I highly recommend him for any HVAC needs!
Gwyn Xagoraris
Gwyn Xagoraris
19:53 09 Oct 26
Always a perfect service with hamco. Would recommend to anyone needing furnace, heat exchanger service, installation or repairs . Thanks Derek !
Don Charron
Don Charron
15:06 09 Oct 26
Derek our service technician was very efficient and informative 👍
David Rayfield
David Rayfield
20:39 08 Oct 26
Christian and Najim replaced the compressor on my HVAC today. Their efficient and friendly service is appreciated. I'd recommend HAMCO without hesitation.
Nicholas Ionescu
Nicholas Ionescu
20:38 08 Oct 26
Stefan serviced our student house and worked wonders. He’s the man!
Kim Kiley
Kim Kiley
18:19 07 Oct 26
Derek was fantastic! Did a great job. Nice guy would welcome him back anytime. Thank you Pam and Frank.
Marilyn dePass
Marilyn dePass
21:05 06 Oct 26
Derek was here today to check my furnace and air conditioner.He was very personable and polite. He discovered that the humidifier was not working.He did a thorough search... and discovered several lines that need to be rewired or perhaps the humidifier will need to be replaced.He was very knowledgeable and explained all of this to me.I was very pleased with his service.read more
Mary
Mary
14:53 02 Oct 26
Many thanks to Christian, for the great service.
Dawn Spencer
Dawn Spencer
22:52 28 Sep 26
ORIGINAL1:Very pleased with Hajim. He was courteous and did a great job. He was very thorough with my old furnace and explained his findings.2026. 2ND REVIEW: Cameron and... Hajim did an excellent job. All questions were answered. Thanks for your great service.3RD REVIEW: SEPT. 2026 Victor and Adam did an amazing job removing my old furnace and installing a brand new on. Thanks for the great job.read more
David Jones
David Jones
18:51 28 Sep 26
Derek came by to service our heating system recently. We were very pleased with the result! Not only was he courteous and knowledgeable but also efficient and effective. A... customer of HAMCO for over15 years we'll continue to ask them to service our heating system again.read more
Debbie Teeple
Debbie Teeple
20:01 25 Sep 26
The technician was very knowledgeable. He was polite and efficient.
Barbara Hanel
Barbara Hanel
15:56 25 Sep 26
Cameron was the technician sent by Hamco, to service my AC. He was pleasant, and engaging and did a thorough inspection and cleaning of my AC unit. Would definitely recommend... this company.I recently had to replace my AC unit. Veronika and Viktor answered my questions and updated me through the entire process. Thanks Hamcoread more
Matthew Gormley
Matthew Gormley
19:09 24 Sep 26
Both Derek and Christian were extremely efficient, helpful, and knowledgeable.I highly recommend HAMCO and both of these technicians 🤟
J.P Morley
J.P Morley
19:45 21 Sep 26
Derek provided great, honest service and some tips for best practices going forward that were appreciated
Jennifer Morrow
Jennifer Morrow
20:14 15 Sep 26
Derek came in to do some work for us today and we were so impressed! When we didn't hear him come to the door the first time, he went above and beyond and made the effort to... come back and do the work, extending his work day just for us! He was quick and efficient and very friendly. Made the process so smooth, would highly recommend him for your heating and cooling needs!!read more
Danielle Diaz
Danielle Diaz
17:52 14 Sep 26
I haven't had the best of luck with my new heating unit, but Derek has made the part replacement easy. He took care of everything and more!
S W
S W
14:49 13 Sep 26
A Hamco technician , Derek, did a great job doing my annual AC and gas furnace checkup and maintenance. My AC was making a bit too much noise and he figured out a few... adjustments to mitigate the noise. Personable and competent and I can reccomend him.read more
Sherry Crawford
Sherry Crawford
21:47 10 Sep 26
Derck arrived on schedule and did the required maintenance on 3 units. Explained options to us and left the work spaces tidy!😁
B Sharpe
B Sharpe
20:49 10 Sep 26
We had Derek from Hamco come to do a A/C & Furnace maintenance check because I found some water coming from under the furnace. He was on time & very polite & courteous. He... explained the procedure he was doing & had the work done in roughly an 1/2 hr. or so. A minor problems was found & told me in fact the units are in very good shape. Furnace is back to good working condition.read more
Patricia Baker
Patricia Baker
16:07 10 Sep 26
The initial description of the project was very useful in understanding the work to be done . The crew, Veronika and Shemar were exceptional. Such a good team, worked so... well together, quickly and efficiently. The cleanup afterwards was fast and the heatpump looks extremely good in the outside location. Bravo!!read more
Paul Donoghue
Paul Donoghue
18:48 09 Sep 26
Just had Derek in to check a minor leak of gas water heater; very thorough and efficient. Terrific encounter, thanks.
Alazar Berhanu
Alazar Berhanu
22:45 04 Sep 26
Warren Oates
Warren Oates
21:20 03 Sep 26
Hamco recently installed venting through the attic and up to the roof for my microwave/range hood combo.Andrew from Hamco was available, pleasent, and thorough. He assessed... and quoted and even came back during install to ensure everything ran smooth.Cheryl helped rearrange when weather postponed the work. Work was done within one week of assessing.The installers Cameron and Victor were knowledgeable, polite, and answered all my questions.I'd highly recommend Hamco for any HVAC jobs you might need.Thanks guys!read more
Curtis Burton
Curtis Burton
00:20 03 Sep 26
Veronika, Adam, Victor, and Cameron provided amazing service from start to finish. They kept me updated throughout the entire process and still managed to complete the work... despite the storm we had that day.They were professional, efficient, and took great care of the workspace. Once the job was finished, everything was cleaned up and left looking just as it did before the work began.Overall, I had a great experience with HAMCO and would absolutely recommend them to friends and family. Thanks again to the whole team for the excellent work!read more
Gino Dalesio
Gino Dalesio
13:44 02 Sep 26
Had a HVAC replaced by Austin at White Pines Mechanical, and was very happy with the service and communication. The unit was a in a rental and had to coordinate with the... tenant and Austin and set up install and communication went smoothly. Unit works great! Very happy with the service!read more
Sarah Kolar
Sarah Kolar
20:48 01 Sep 26
Had a heatpump and 3 heads installed in our home in July. Every time I come through the door on a hot day, I say a prayer. Not to a god, but to Andrew and the rest of the... team at Hamco. I can't tell you how drastically our lives have improved. Andrew was very informative, helpful, great communication, very responsive at all hours of the day, happy to accommodate with my babies nap schedule. The installation team were very respectful and did an excellent job. We were pleasantly surprised that the job ended up taking only 1 day instead of the estimated 2 days.10/10 would use again and would recommend to everyone.read more
Next Reviews
js_loader

Book Ductless Service Now

At HAMCO, we are committed to ‘doing it right’ the first time and ensure the full completion of jobs in a timely fashion.

Fill out the form below and one of our certified experts will follow up with you as soon as we can.

"*" indicates required fields

This field is for validation purposes and should be left unchanged.
Name*
Address*
Booking dates are subject to availability and will be confirmed once we receive this inquiry.
Drop files here or
Max. file size: 1 GB.
    Upload pictures of your HVAC equipment and we'll have one of our HAMCO professionals assess your system and provide an estimate.

    Latest News

    Common Spring HVAC Issues to Look Out For

    Common Spring HVAC Issues to Look Out For

    Spring has finally sprung, and so have potential issues with your HVAC system. As the temperature outside begins to increase you will want to make sure that you are ready for problems that could develop. Here are some of the more common concerns customers experience...

    read more
    HAMCO Protection Plans for Your Peace of Mind

    HAMCO Protection Plans for Your Peace of Mind

    How much does peace of mind cost these days when it comes to your home comfort? At HAMCO, that peace of mind only costs a small monthly fee. Plus, you gain so much more with one of our protection plans. If you want to know more about these protection plans, read on....

    read more
    Benefits of Regular HVAC System Inspections

    Benefits of Regular HVAC System Inspections

    As a homeowner, you understand the importance of maintaining your home and the different systems within it. For homeowners in Ontario, that means tending to your heating, ventilation, and air conditioning (HVAC) systems. Let’s face it, HVAC equipment is a necessary...

    read more

    Don’t forget to follow us on Facebook and Instagram
    for ductless tips and information on current specials and promotions!

    Call Now Button