Unionville Heating & Air Conditioning
757 Google reviews
Air Conditioning in Agincourt
4 photos published on this company’s Google Business Profile, collected August 2026. We did not take them and cannot confirm they show this company’s own work.
Last updated: By HeatPumpIndex Evidence Desk
About Unionville Heating & Air Conditioning
HeatPumpIndex lists Unionville Heating & Air Conditioning as an air conditioning company serving Agincourt, rated 5.0★ across 757 Google reviews.
Heating and Air Conditioning contractor in Markham, Stouffville, Uxbridge, Unionville, Pickering, Ajax, Whitby, Oshawa or Aurora.
Service options
- Onsite services
The HeatPumpIndex score, line by line
60out of 100
- Reviews and reputation45 of 45
- Google rating, adjusted for how many reviews stand behind it (5.00 of 5)+30
- How many Google reviews there are (757)+15
- What it states on its own website4 of 30
- Says it has been in the trade about 41 years+4
- Website and record11 of 25
- The website answered when we fetched it+8
- Posts its opening hours+2
- Has three or more photos+1
Reviews and reputation counts for 45 of the 100, what the company states on its own website for 30, and its website and record for 25. Nothing in this panel has been checked by anyone here: the middle pillar is the company writing about itself and a crawler reading the sentence. How the score is built.
What this site read
Statements on Unionville Heating & Air Conditioning’s own website
- Says it has been going since 1985
Each line above is a sentence a crawler found on that company’s website when the site was read on 2026-08-30. Nobody here rang a regulator or looked at a certificate, which is why every line begins “Says it”.
What reviewers kept coming back to
- Used them for years
- “We have been looked after by Unionville Heating and Air Conditioning for more than 20 years.”
- Sized the system
- “John is extremely knowledgeable and took the time to assess our home properly by reviewing the layout, checking cold air returns and designing a system that would maximize airflow to the rooms and levels that needed it most.”
- Fair price
- “The cost for this extensive work was also the most competitive pricing among the four quotes we received, an added bonus!”
- Arrived when promised
- “Nick and his crew arrived exactly as scheduled on a −17°C day and went straight to work.”
- Easy to reach
- “I called the office spoke to Lisa (a real person) who had Eric the service manager call me within minutes.”
- Air conditioner install
- “They installed a new air conditioner and furnace and all the do dads that go along with it.”
Themes come only from the Google reviews already stored against this listing, and each one carries the reviewer’s own sentence. A listing with fewer than three stored reviews gets none at all.
Services
- Air Conditioning
- Water Heater Repair and Installation
- Indoor Air Quality Systems
- Air Cleaner and Humidifier Installation
- Custom Ductwork
- Gas Fireplace Repair and Maintenance
- Heating and AC Repairs
- Furnace and AC Maintenance
- Water Heater Maintenance
- Furnace
What customers say
“We can’t say enough amazing things about John St. Germaine and his teams. We moved into our home for only a few weeks before calling John as we needed all new equipment, including an on-demand water heater, furnace, air conditioner,…”
Danavia Google reviews5 months ago
“We had a great experience with Unionville Heating. A well known company in our area, this was our first call once our old AC unit became inoperative during the most recent heat wave. We called on a Friday and was…”
Ivia Google reviews3 weeks ago
“Well, we hate to be boring and join in with everyone’s five star rating, but sometimes you gotta do what you just gotta do. Absolutely excellent service. On time. Worked extremely clean. Attention to detail and went the extra mile…”
Dianavia Google reviews3 weeks ago
“We have been looked after by Unionville Heating and Air Conditioning for more than 20 years. Today’s encounter, however is truly worth mentioning. On one of the hottest days this summer, our air conditioning stopped working. I called the office…”
Shafikvia Google reviews4 weeks ago
“Called for an appointment to have my hot water tank serviced and flushed as it is over 12 years old. Got an appointment for the next morning. The technician, Todd, showed up 30 minutes early. Him and his assistant completed…”
Davidvia Google reviews3 months ago
Before you book, read the questions to ask air conditioning companies.
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Unionville Heating & Air Conditioning: frequently asked questions
Is Unionville Heating & Air Conditioning well reviewed?
- Unionville Heating & Air Conditioning holds a 5.0-star Google rating across 757 reviews. That is a strong score for an air conditioning company in the Greater Toronto Area.
Where does Unionville Heating & Air Conditioning operate?
- Unionville Heating & Air Conditioning works out of Agincourt in the Toronto area and serves surrounding Greater Toronto Area neighbourhoods. Its listed address is 18 Ringwood Dr Unit 5, Whitchurch-Stouffville, ON L4A 0N2.
How do I get a quote from Unionville Heating & Air Conditioning?
- You can contact Unionville Heating & Air Conditioning directly or through its website.
What does Unionville Heating & Air Conditioning charge for air conditioning installation?
- Unionville Heating & Air Conditioning sets its own prices, but as a market benchmark new air conditioner installed, toronto (all system types) runs $3,500 to $8,500 per project (CAD) across the GTA, according to Imperial Heating (Toronto, 2026 guide). Add 13% HST, and request an itemized quote for numbers specific to your project.