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Unionville Heating & Air ConditioningHVAC contractor in Markham, ON

Unionville Heating & Air Conditioning is an HVAC contractor at 18 Ringwood Dr Unit 5, Whitchurch-Stouffville, ON L4A 0N2, ranked #29 of 813 HVAC contractors in Markham and rated 4.9 from 691 Google reviews.

Markham, ONUpdated 0 paid placements in any rankingHow we rank

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Key facts

Key facts about Unionville Heating & Air Conditioning
Address18 Ringwood Dr Unit 5, Whitchurch-Stouffville, ON L4A 0N2, Markham, ONGet directions
Phone(905) 479-1290
Websiteunionvilleheating.com
Google rating4.9 from 691 Google reviews

Trades

Each trade shows the evidence we matched it on.

  • HVACmain tradeGoogle main category

Service area

Serves Markham and 11 towns within 40 km: Pickering, Aurora, Richmond Hill, Newmarket, Uxbridge, East Gwillimbury, Scarborough, Vaughan, Ajax, Willowdale and North York.

Based in Markham, ONView on map

Typical heating and cooling prices

Typical heating and cooling prices
JobLowTypicalHigh
AC replacementPer system, installed (unit plus labor); typical range of customer-reported jobs. US national range converted at 1.4054 CAD per USD (Bank of Canada, October 20, 2026)CA$5,460CA$8,400CA$11,350
Furnace replacementPer system, installed; typical range of customer-reported jobs. US national range converted at 1.4054 CAD per USD (Bank of Canada, October 20, 2026)CA$3,970CA$6,770CA$9,690

Market ranges for the trade, checked October 2026, not a quote from this business. Ask for a written estimate.

Compare nearby HVAC contractors

Unionville Heating & Air Conditioning compared with nearby businesses
BusinessRankCR ScoreGoogle ratingLicense verifiedSaturdaySundayDistance away
Unionville Heating & Air Conditioning (this business)—614.9 (691)———
BreezeCome Home Service/Quality Breeze 清风到家 服务到家#27614.8 (481)—YesYes18.2 km
Laird & Son Heating & Air Conditioning#28614.8 (1,014)—YesYes15.4 km
Reliance Heating, Air Conditioning & Plumbing#30614.8 (6,966)—YesYes33.4 km

See all 813 ranked HVAC contractors in Markham

Reviews

ContractorsRanked reviews

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Google

4.9from 691 Google reviews

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Questions about Unionville Heating & Air Conditioning

How is Unionville Heating & Air Conditioning ranked in Markham?

Unionville Heating & Air Conditioning is ranked #29 of 813 HVAC contractors in Markham by CR Score, with 61 out of 100 as of October 2026. The score weighs reputation, credentials, review volume, recency, availability, trade focus, proximity, claimed profile, partnered and ContractorsRanked reviews. No business can pay to change its rank.

What areas does Unionville Heating & Air Conditioning serve?

Serves Markham and 11 towns within 40 km: Pickering, Aurora, Richmond Hill, Newmarket, Uxbridge, East Gwillimbury, Scarborough, Vaughan, Ajax, Willowdale and North York. The list is based on the business's location and the usual service radius for heating and cooling. Confirm your address is covered when you call.

What do Google reviews say about Unionville Heating & Air Conditioning?

Unionville Heating & Air Conditioning has a rating of 4.9 from 691 Google reviews. The CR Score adjusts the star rating for review count, so a high rating from a few reviews counts for less than the same rating from many.

How do I contact Unionville Heating & Air Conditioning?

Call Unionville Heating & Air Conditioning on (905) 479-1290. The business is at 18 Ringwood Dr Unit 5, Whitchurch-Stouffville, ON L4A 0N2, Markham, ON. Its website is linked in the key facts on this page. Ask for a written estimate before any work starts.

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