Absolute Comfort Hvac LLC
“If you're looking for service or HVAC, this is the company to use.”
Best HVAC Contractors in Waukesha, WI
16 companies listed · all 16 in Waukesha · 4 open 24/7 · 9 open weekends · 13 rated 4.5+
Data verified October 21, 2026
Tom's Heating Service
“The crew was professional and respectful of us, our home, and our pets.”
On Time Heating & Cooling
“We continue to have the best service from this company and recommend them to everyone I know.”
A & B Heating and Cooling
“Excellent experience, no high pressure sales tactics, just honest appraisal of current AC system and suggested improvements.”
1st Choice Heating & Cooling
“Did a great job installing my furnace and A/C, converting to gas from an electric furnace.”
Seider Heating
“Jason was very informative on the process of replacing our outside faucet which involved some plumbing replacement inside a crawl space.”
The 16 companies listed for Waukesha, WI 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: Waukesha, WI
All 16 companies we list here are in Waukesha itself. The companies on this page are rated from 4.0 to 5.0 across 1,910 reviews; 6 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 punctuality (97%), professionalism (92%) and quality (88%). The topics that come up most in reviews of the companies on this page are "informative", "efficient" and "estimates". 4 are open around the clock; 9 are open on Saturdays and 8 on Sundays. 2 show a license on their websites; 2 list staff certifications (EPA) and 7 have a BBB rating of A or A+. Domain records put 13 websites of the companies on this page at ten or more years old; the oldest dates from 1996. 8 offer emergency call-outs; 5 offer financing or payment plans; 3 give free estimates; 2 are family- or locally-owned and 5 list coupons or special offers. We have a website on file for all 16 of the companies on this page; 15 publish a contact page; 13 list a public email and 3 take bookings online. 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 Waukesha 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.
Energy Saving Systems
“I'm extremely happy with my new Bryant A/C system compared to my old R22 system.”
Dillett Mechanical Services Inc
“Very great place, recommended Dean Budzien, great guy with even greater experience and skills”
Mechanical Inc.
“Gave us the option of replacing the heat exchanger or purchasing a new furnace.”
Pure Mecahnical
Mechanical Systems
“Very nice professionals to work with.”
A/C Service Inc.
“Did a great job and took extra time to make sure everything was completed correctly!”
Heating & Air Conditioning
“They are great not only because of their quality of work, but they are respectful, honest, trustworthy and professional.”
Vyron Corporation
“Tim and Katie are always quick to respond and are very helpful.”
Advanced Chiller Services
Kain Energy Corporation
Why these companies made our list
What customers say about companies in Waukesha
- “Very polite and professional staff. Follow-up tech did a fantastic job of fine-tuning and explaining the system as well.” — customer of 1st Choice Heating & Cooling
- “They care about doing a quality job and always explain in detail what needs to be done.” — customer of On Time Heating & Cooling
- “Very professional crew that helped me understand what I was buying and how to use it.” — customer of A & B Heating and Cooling
- “They were very friendly and cleaned up very thoroughly before they left (maybe even cleaner than when they arrived!) I asked about an upgraded thermostat and the tech brought one out and walked us through the set up process.” — customer of Tom's Heating Service
- “Work was done quickly and efficiently. Would recommend them to anyone looking for heating or air conditioner work.” — customer of Absolute Comfort Hvac LLC
Excerpts from public reviews of the companies listed on this page.
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