FURNACE INSTALLATION SERVICE
Serving London, Ontario & nearby areas. Furnaces, Heat Pumps and Central Heating with London’s only 15-year warranty.
CALL US!Contact Us
FURNACE INSTALLATION SERVICE
Serving London, Ontario & nearby areas. Furnaces, Heat Pumps and Central Heating with London’s only 15-year warranty.
CALL US!Contact Us
FURNACE INSTALLATION IN LONDON, ONTARIO & SURROUNDING AREAS
When the cold Ontario winter sets in, you need a furnace you can count on. At Donaldson Home Services, we specialize in professional furnace installation that keeps your home warm, comfortable, and energy-efficient. Whether you’re replacing an old system or installing a new one, our certified technicians make the process simple — all with London’s only 15-Year Warranty for true peace of mind.
HEATING SYSTEMS WE REPLACE
If your current heating system is old, inefficient, or no longer keeping your home comfortable, we can replace it with a high-efficiency unit designed to save you money and last for years.
NATURAL GAS & PROPANE FURNACES
FORCED AIR FURNACES
ELECTRIC FURNACES
HEAT PUMPS
WE INSTALL THE TOP FURNACE BRANDS
At Donaldson, we only install reliable, top-performing furnace brands that meet our standards for quality and efficiency.
To obtain an accurate furnace price you will need your home’s size measured for it’s heating and cooling load. This includes: floors, rooms, windows, doors, venting, and other details.
TIP: Be weary of any company promising you a ‘good’ furnace price over the phone based only on square footage. All homes must be measured to see what furnace size fits. A furnace that is too big will actually heat your home less, and a too small furnace will over-run and have a shorter life span.
For genuine and professional furnace installs
WHY CHOOSE DONALDSON HOME SERVICES FOR YOUR FURNACE INSTALLATION?
- We inspect and measure home for accurately sized heating equipment.
- Furnaces properly installed up to code.
- Repair & maintenance after care on new furnaces.
- Get our repair guarantee.
- Industry leading warranties up to 15yr extended furnace warranty.
- 2-Hour Arrival Windows.
- BONUS: Check out our best promotion yet!
For genuine and professional furnace installs
WHY CHOOSE DONALDSON HOME SERVICES FOR YOUR FURNACE INSTALLATION?
- We inspect and measure home for accurately sized heating equipment.
- Furnaces properly installed up to code.
- Repair & maintenance after care on new furnaces.
- Get our repair guarantee.
- Industry leading warranties up to 15yr extended furnace warranty.
- 2-Hour Arrival Windows.
- BONUS: Check out our best promotion yet!
For genuine and professional furnace installs
BENEFITS OF A NEW FURNACE
Upgrading your furnace delivers long-lasting comfort and savings:
Consistent Heating throughout your home
Lower Energy Bills with modern high-efficiency models
Quieter Performance for a more comfortable living space
Improved Air Quality with cleaner, more efficient systems
Increased Home Value with a new, reliable furnace
For genuine and professional furnace installs
OUR SERVICE AREAS

Serving London, St. Thomas, Strathroy, Woodstock, Dutton, Tillsonburg, and Exeter.
Schedule a 2-hour arrival window for any home heating, air conditioning, or plumbing service.
You’ll receive a text when we’re on the way — plus a photo of your technician so you know exactly who’s coming.
Book now and experience service you can trust.
For genuine and professional furnace installs
3 Things to consider before Getting a new furnace
Having the proper type & size furnace ensures maximum efficiency and a long-lasting furnace: single stage, two stage, modulating, etc. Single stage furnaces have an on or off setting while a two stage furnace has a low and high setting. A fully modulating furnace automatically adjusts to the exact speed it needs based on what temperature you’re trying to achieve. Essentially, the more settings, the more efficient the furnace.
If the furnace is too small, you may experience cold spots around the home and you may find the furnace working harder to maintain the desired temperature which can result in faster wear and tear on parts. The same thing can happen with a furnace that’s too large —it can overheat causing it to kick on and off more frequently and you may experience humidity issues in the home.
The only viable way to determine the proper size furnace and/or air conditioner is to take measurements of the home. This Heat Loss/Heat Gain Analysis also considers specific construction elements of each individual home such as the size and direction or windows, doors, insulation, size, number of rooms, and more. By performing a thorough calculation of the home, we guarantee you get the right size system.
The Size Guarantee requires our Home Comfort Advisors to come to the home to take measurements.
Most 10 year warranties only cover a problem if a part needs to be replaced on the inside of the furnace or air conditioner, leaving many components uncovered. These warranties are typically only valid if you actually register it, are non-transferrable, no labour coverage included, and is considered void if you miss an annual maintenance. Read more about the importance of maintenances here. The value of these warranties heavily rely on how reliable the installation company is so it’s important to choose a company that you can count on.
WHAT OUR CLIENT SAY!
Jayne Graham2025-07-11Trustindex verifies that the original source of the review is Google. Excellent service with Shawn. Very informative and professional. Jonathan Wake2025-07-11Trustindex verifies that the original source of the review is Google. From the very start of the process in our bathroom renovation, the customer service experience, punctuality, honesty, and transparency were top tier with Donaldson. They provided us with a stress free renovation as each trade was brought in and handled by them in a well orchestrated timeline. At the end only needing to pay one bill that included the subcontract costs. This job encompassed plumbing, drywalling/waterproof enclosure installation, electrical, and demolition. Every stage and every technician involved was fantastic. I highly recommend this company for any home improvement project. The job will be done right and the results are stunning! I have attached the before and after for our renovation, the before is the brown tiled style and the after is the beautiful Grey acrylic with better lighting. Drew McCallum2025-07-11Trustindex verifies that the original source of the review is Google. Exceptional Service – Highly Recommend Donaldson Heating and AC! Donaldson Home Heating has truly gone above and beyond for me on multiple occasions. Their service, responsiveness, and professionalism are outstanding. Recently, I had a water line break at one of my properties, and water was leaking into the floor below. Donaldson had a technician on site within just a couple of hours. They quickly diagnosed and resolved the issue, minimizing damage and stress. Another time, in the middle of a hot July evening, our AC unit failed and the indoor temperature was rising fast—already at 79°F. I called Donaldson’s emergency line and was amazed when a technician arrived within 45 minutes! Although the issue couldn’t be fixed that night, they had the necessary part ordered and the repair scheduled for the very next afternoon. Their communication and follow-through were excellent. In every interaction, their team has been professional, courteous, and incredibly efficient. I can’t recommend Donaldson Heating and AC enough. If you need fast, reliable, and friendly service, they’re the ones to call! John Bisset2025-07-11Trustindex verifies that the original source of the review is Google. Plumber arrived and quickly identified the water leak. He then repaired the problem. He left a very clean work area. We were totally happy with the service provided. Jay Graf2025-07-10Trustindex verifies that the original source of the review is Google. Jason was a great Donaldson employee any future work i need will be getting you guys again no question Holly Wallace2025-07-10Trustindex verifies that the original source of the review is Google. Great help from Sean today. He diagnosed the issue with the AC and was able to provide some helpful information. HORST HOFMANN2025-07-10Trustindex verifies that the original source of the review is Google. VERY HELPFUL, Explained as he went and gave helpful info to maintain furnace and air conditioner Would recommend them and use them in the futureLoad more
not just the furnace.
Check out our 15 year True Care Warranty and get to know us better!
The average life of a furnace is 14.7 years so choosing a team to support you for that long is just as important.












Don’t wait until your old furnace leaves you in the cold. Get reliable, professional installation from a trusted local team.

Don’t wait until your old furnace leaves you in the cold. Get reliable, professional installation from a trusted local team.