Best HVAC Contractors in Milton, ON

15 companies listed · 10 in Milton · 6 open 24/7 · 12 open weekends · 12 rated 4.5+

Data verified October 18, 2026

Free Air Heating & Air Conditioning Ltd.

Free Air Heating & Air Conditioning Ltd.

4.9 130 reviews
“Our family will be sleeping much more comfortable with thanks to Stephen and the Free Air team.”
Free estimatesInsured12-yr warranty24/7 emergency serviceFinancing availableSince 2008
420 Main St E
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Hvac Link

Hvac Link

5.0 62 reviews
“Jeff and Josh showed up, powered through crazy rain, went to extra ends to keep our house clean and dry regardless of the crazy weather.”
Coupons & offersLicensedFinancing
50 Steeles Ave E #7
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Makli Mechanical Systems

Makli Mechanical Systems

5.0 96 reviews
“He walked me through the entire process, communicated clearly what the potential problems might be, diagnosed the situation and fixed the clogged sink and leak within 1 hour”
LicensedSince 2020
924 Pickersgill Crescent
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Aero Hvac

Aero Hvac

5.0 83 reviews
“I will definitely be returning and will be spreading the word about Aero HVAC,”
Since 2017
1548 Leger Wy
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Airprime Hvac Inc

Airprime Hvac Inc

5.0 28 reviews
“Farden was at my door step fixing the HVAC within 2 hours of my call.”
736 Rayner Ct
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Facility Network

Facility Network

4.3 8 reviews
“Highly recommended especially if you have multiple sites - they service all of Canada.”
Free consultation24/7 emergency serviceSince 2005
290 Bronte St. S
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The 15 companies listed for Milton, ON handle furnaces and heat pumps in winter and the cooling side in summer. Profiles repeat what each firm publishes about hours, licensing and brands, with ratings and review quotes gathered from public reviews.

Area overview: Milton, ON

10 of the 15 companies we list are based in Milton; the other 5 serve Milton from Oakville (17 km) and Georgetown (16 km). The companies on this page are rated from 3.8 to 5.0 across 2,312 reviews; 8 have 50 or more reviews and 12 are rated 4.5 or higher. When customers rate these companies on specific qualities, they most often praise professionalism (93%), responsiveness (83%) and quality (79%). The topics that come up most in reviews of the companies on this page are "cleanliness", "efficient" and "price". 6 are open around the clock; 12 are open on Saturdays and 9 on Sundays. 4 show a licence on their websites. Domain records put 3 websites of the companies on this page at ten or more years old; the oldest dates from 2005. 6 offer emergency call-outs; 5 offer financing or payment plans; 5 give free estimates; 2 are family- or locally-owned and 6 list coupons or special offers. We have a website on file for all 15 of the companies on this page; 13 publish a contact page; 12 list a public email and 1 takes bookings online. We count these figures across the companies on this page; distances are straight-line, and hours and prices change, so confirm the details with the company before you book.

Why do some of these firms show another city?

10 of the 15 companies have an address in Milton; the rest come from other towns within 20 km. Crews drive to the job, so the address matters less than whether they answer calls in your area in winter.

DM Air Inc

DM Air Inc

4.3 8 reviews
“Been using them for all related services for years and refer them to all friends in Milton”
Free consultationSince 2012Family-owned
781 Main Unit 4
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Affordable Heating and Air Solutions

Affordable Heating and Air Solutions

3.8 4 reviews
“Affordable Heating and Air Solutions are my GO TO specialist for my home!”
Open 24 hoursSince 2009
326 Pine St
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Reid Mechanical Heating & Air Conditioning

Reid Mechanical Heating & Air Conditioning

4.6 8 reviews
“Very professional and friendly, great customer service, fair pricing, excellent local business I'd encourage anyone looking for recommendations to support :)”
493 Main St E #9
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Aire One Milton

Aire One Milton

5.0 2 reviews
“I highly recommend him for HVAC jobs”
Free consultationLicensedFamily-owned
1213 Duignan Cres
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Reddiar Air Services

Reddiar Air Services

5.0 17 reviews
“Very professional, was told all steps of removal and install of furnace and A/C.”
4 km from Milton
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Precision Hvac Mech Inc

Precision Hvac Mech Inc

4.9 125 reviews
“Placed a call to Precision, no hesitation on their part to send a technician to get the furnace going.”
Coupons & offersSince 2018Financing
Oakville, ON · 17 km from Milton
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Appleby Systems Heating & Cooling

Appleby Systems Heating & Cooling

4.8 135 reviews
“I was impressed by the courtesy, promptness and good communication of everyone who came to the house.”
Free estimatesLicensed24/7 emergency serviceFinancing availableSince 1967Family-owned
Oakville, ON · 17 km from Milton
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Spectrum Energy Hvac Services

Spectrum Energy Hvac Services

4.8 72 reviews
“We had called Spectrum for our water heater, the technician that arrived was very professional and courteous.”
Free estimates24/7 emergency serviceSince 1999
Oakville, ON · 17 km from Milton
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Book onlineBook
Brooks Heating & Air

Brooks Heating & Air

4.9 133 reviews
“They always go above and beyond with their service, and Frances & Nathalie are always so great and very friendly when calling into the office.”
$30 offTSSA licence #000154468Insured24/7 emergency service100% satisfaction guaranteeFinancing available
Georgetown, ON · 16 km from Milton
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Why these companies made our list

What customers say about companies in and near Milton

  • “Very good, friendly and professional service. Highly reliable and would recommend to anyone looking for ac/furnace replacement.” — customer of Aero Hvac
  • “Super fast, professional and thorough service. Stephen is very knowledgeable and personable and did a phenomenal job on short notice even though it required some lengthy diagnosis for an unusual problem with our furnace.” — customer of Free Air Heating & Air Conditioning Ltd.
  • “Great experience! Technicians were friendly, punctual, transparent about what needed to be done and got my air conditioner up and running quickly.” — customer of Appleby Systems Heating & Cooling
  • “Andrew was extremely helpful and went above and beyond to figure out the solution to our heat pump issue.” — customer of Brooks Heating & Air
  • “Stephen and his crew have provided excellent service replacing my furnace and water heater.” — customer of Free Air Heating & Air Conditioning Ltd.

Excerpts from public reviews of the companies listed on this page.

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