FURNACE INSTALLATION COMPANY
London's Furnaces, Heat Pumps and central heating company with a 15-year inside and outside True Care warranty. Furnaces? Donaldson does that!
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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
Donaldson is a trusted home heating company with over 2000 5-Star Reviews. We go beyond the equipment install it with True Care!
What We Do:
- Residential HVAC Furnaces, Heat Pumps, Boilers
- Employ Certified Gas Fitters who install gas-fired equipment
- Fit your home with a central heating systems
- Provide the best furnace brands options
- No Pressure Quotes & Honest Sales Practices
- Industry Leading 15 Year In & Out Furnace Warranty
Do Furnace True Care With Donaldson!
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.
What is True Care?
A 15 Year Furnace* warranty that comes with:
- 15 Years Parts Coverage on both inside and outside furnace components
- 15 Years Labour Coverage
- 15 Free Furnace Maintenances
- 15 Free Furnace Filters
- All backed by priority booking
*On select modulating furnaces
We even contact you to book your annual maintenance. No stress, no worry. For 15 Years, Your Free!
(?) Did you know that if you do register the warranty nor complete an annual furnace maintenance, the manufacture will not honor the furnace’s warranty. At Donaldson, we care about your home, so we handle this with our True Care warranty package.
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!
EXCELLENT Based on 2716 reviews Posted on Kyle HollisTrustindex verifies that the original source of the review is Google. Great service. Same day on the coldest day of the year. Their set up is amazing and their technician was great.Posted on Mina RockTrustindex verifies that the original source of the review is Google. Awesome customer service, scheduled appointment on time, knowledgeable friendly technician. Very happy with Donaldson Home Services. Thank you Mike Reza for the excellent service today Jan. 15, 2026. Keep up the good work. 👍Posted on Richard LemaireTrustindex verifies that the original source of the review is Google. Great job and very helpful information about stuff thanks 😊Posted on Aida BaptistaTrustindex verifies that the original source of the review is Google. We appreciated Donaldson’s prompt service call to my mom’s house. Liem was very professional, friendly and very quick to diagnose and solve the problem. Thank you for the text updates and the tech photo. It puts customers at ease to know who’s coming to their home, especially seniors. We will definitely use and recommend Donaldson’s in the future.Posted on Elizabeth HTrustindex verifies that the original source of the review is Google. Outstanding service. My furnace went out at -17C weather and they were prompt, responsive and very friendly. The customer service was incredible and the fees were very reasonable. I cannot recommend Donaldson's enough!Verified by TrustindexTrustindex verified badge is the Universal Symbol of Trust. Only the greatest companies can get the verified badge who has a review score above 4.5, based on customer reviews over the past 12 months. Read 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.




