Adams Heating & Cooling Co. Inc.
“Dave did an excellent job making sure our new AC system was operating at peak efficiency.”
Best HVAC Contractors in Schenectady, NY
16 companies listed · all 16 in Schenectady · 5 open 24/7 · 9 open weekends · 13 rated 4.5+
Data verified October 18, 2026
Appolo Heating
“The technician was helpful and knowledgeable and was able to remedy the issue in the same visit while also educating me about what to expect with our (old) system down the road.”
Stream Hvac
“Jeff responded, quoted, and installed in less time than it took other contractors to even call me back.”
Duell Plumbing & Heating
“If you need any plumbing or heating issues taken care of by professionals, Duell is an excellent choice.”
Upstate Plumbing
“He explained everything to me even showed me what was going on with my pipes and told me great tips so I could avoid another mess.”
Service Experts
“He found a problem and fixed it quickly and with no charge”
The 16 companies listed for Schenectady, NY work on furnaces, heat pumps and air conditioners. Each profile repeats what the company publishes about its hours, its license and the equipment it fits, alongside ratings and quotes drawn from public reviews.
Area overview: Schenectady, NY
All 16 companies we list here are in Schenectady itself. The companies on this page are rated from 4.1 to 5.0 across 1,780 reviews; 5 have 50 or more reviews and 13 are rated 4.5 or higher. When customers rate these companies on specific qualities, they most often praise professionalism (93%), responsiveness (81%) and quality (79%). The topics that come up most in reviews of the companies on this page are "price", "efficient" and "estimates". 5 are open around the clock; 8 are open on Saturdays and 8 on Sundays. The services the companies on this page list most often on their websites are heating (3), plumbing (3), electrical (2) and water heaters (2). 5 show a license on their websites and 3 have a BBB rating of A or A+. Domain records put 9 websites of the companies on this page at ten or more years old; the oldest dates from 1999. 6 offer emergency call-outs; 2 offer financing or payment plans; 6 give free estimates; 5 are family- or locally-owned and 3 list coupons or special offers. We count these figures across the companies on this page; hours and prices change, so confirm the details with the company before you book.
Do any heating firms listed for Schenectady work on Saturdays or Sundays?
Saturday or Sunday hours show up for 9 of the 16 companies here. Saturdays fill with the calls that came in on Friday, so ask whether you are getting a repair slot or a sales visit. Sunday work is usually treated as an emergency call.
RMB Heating & Cooling LLC Mechanical Inc.
“Our central air unit went down and RMB was able to fix the same day.”
Extreme Heating & Cooling Inc.
“The service was excellent, very professional.”
W K Clough & Sons Inc
“Wonderful as always, thank you so much for being such wonderful people!”
Indoor Climate Experts
“I highly recommend Cody and his company Indoor Climate Experts NY wether its service, the smart app features or whatever your HVAC needs may be you can trust and count on them to take care of it!”
Discount Plumbing & Heating
“Discount Plumbing came out for a free estimate, told us we are perfectly fine fixing what's inside and replacing the pipe outside.”
D S Digesare Plumbing & Heating
Conditioned Air Products
“And unlike some other places, (they know who they are) this place didn't crank up their prices due to the 2020 pandemic!”
A Plus Heating and Welding
“I recently had four AC units installed on my small strip mall by A+ heating and I couldn't be more pleased.”
Indoor Weather Control
Wheeler Heating & Cooling
“Within just a few days, we had a whole new system (along with new duct work) up and running.”
Why these companies made our list
What customers say about companies in Schenectady
- “From my initial inquiry on a ductless heat pump, the steps in between, to final install - always responsive, helpful and courteous.” — customer of Stream Hvac
- “Very polite, conscientious, reasonably priced. I had my furnace cleaned today and will certainly use this company again.” — customer of Wheeler Heating & Cooling
- “Very easy to schedule and they do a thorough job for maintenance on both the water tank and furnace.” — customer of Adams Heating & Cooling Co. Inc.
- “I was impressed with their knowledge & efficiency. The estimate for installing a furnace was fair & reasonable.” — customer of Stream Hvac
Excerpts from public reviews of the companies listed on this page.
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