Northern Climate
“Northern Climate installed a new combi-boiler and ductless AC at our home.”
Best HVAC Contractors near Sudbury, ON
2 of these companies are based in Sudbury; the others serve Sudbury from Greater Sudbury (2 km) and Garson (9 km).
2 open 24/7 · 3 open weekends · 11 rated 4.5+ · 2 show a licence
Data verified October 18, 2026
Campeau Heating
“He was punctual, pleasant, knowledgeable and professional very important traits when representing your company.”
669-Heat
“He is always eager to share his technical knowledge insight and is responsive to any questions.”
Mr. Pipes Plumbing
“Mr Pipes identified the problem and fixed it for a fraction of the cost.”
Climate Control
“Steve and his crew did an amazing job as usual - always a pleasure working with you Steve!!!”
Castle Plumbing and Heating Ltd.
“The individuals at Castle are amazing to deal with from Lee Anne that books the work and is the conduit to the service professionals to the individuals that are on site doing the installs and repairs.”
The 15 companies listed for Sudbury, 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: Sudbury, ON
13 of the 15 companies on this page have a rating, from 4.0 to 5.0 across 5,191 reviews; 8 have 50 or more reviews and 11 are rated 4.5 or higher. When customers rate these companies on specific qualities, they most often praise professionalism (93%), responsiveness (78%) and punctuality (67%). The topics that come up most in reviews of the companies on this page are "price" and "efficient". 2 are open around the clock and 3 are open on weekends. 2 show a licence on their websites. Domain records put 5 websites of the companies on this page at ten or more years old; the oldest dates from 2004. 5 offer emergency call-outs; 1 offers financing or payment plans; 5 give free estimates; 4 are family- or locally-owned and 1 lists coupons or special offers. We have a website on file for all 15 of the companies on this page; 11 publish a contact page; 7 list a public email and 2 take 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?
2 of the 15 companies have an address in Sudbury; the rest come from other towns within 10 km. Crews drive to the job, so the address matters less than whether they answer calls in your area in winter.
Borts Hvac & Electrical
“Crew installing our cold climate heat pump were professional, helpful with information, tidy.”
Kore Hvac Services
“From the point at which I received my quote to the completion of work, they were courteous, answered all my questions, and left my utility room in top shape.”
@home Energy
“They're very down to earth, honest and have all the patience simply explaining everything.”
Mr Nero Contracting & Restoration Inc.
“High quality, responsive, with great rates.”
JEM Air Conditioning Ltd.
“Solved the problem effectively and in timely manner.”
Ingleton Sheet Metal Ltd
“A good company to work with”
Sudbury Furnace Dealers
Senuik Plumbing Inc
Witherell Plumbing & Heating
“He assessed the situation in a flash, got the part and had my air conditioner running!!!”
Why these companies made our list
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