Gerondale Heating & Cooling
“The furnace is so quiet I had to go downstairs to make sure it was working, only to realize I was standing in front of it while it was blowing.”
Best HVAC Contractors in Green Bay, WI
15 companies listed · all 15 in Green Bay · 3 open 24/7 · 4 open weekends · 14 rated 4.5+
Data verified October 21, 2026
Wesley Heating & Cooling
“Nick came by today for a furnace tune-up and was professional and thorough.”
Apex Heating and Air Conditioning
“I can highly recommend him and we will be using Apex for our other short term rental properties in the future.”
Bay Area Services Inc
“The guys handled all parts of the install cleanly and explained all parts of the install so i could understand what they did.”
Ama Heating and Air Conditioning
“Dan was amazing at figuring out what we needed and what would be best for us along with two outstanding young technicians Zac and Javi with the install of our mini- split..”
Hurckman Heating & Cooling
“" Great customer service, courteous and talented installers, and very fair prices.”
The 15 companies listed for Green Bay, 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: Green Bay, WI
All 15 companies we list here are in Green Bay itself. We have 16 companies in Green Bay on file; this page shows the highest-rated 15. The companies on this page are rated from 4.2 to 5.0 across 1,151 reviews; 4 have 50 or more reviews and 14 are rated 4.5 or higher. When customers rate these companies on specific qualities, they most often praise professionalism (96%), responsiveness (84%) and punctuality (81%). 3 are open around the clock and 4 are open on weekends. The services the companies on this page list most often on their websites are heating (3), air conditioning (2), annual maintenance benefits (2), fabrication (2) and hvac (2). 1 shows a license on its website; 1 lists staff certifications (NATE) and 8 have a BBB rating of A or A+. 14 have ten or more years of experience, the longest 69 years. 11 offer emergency call-outs; 5 offer financing or payment plans; 6 give free estimates; 3 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.
Which companies listed for Green Bay answer no-heat calls at night?
Round the clock availability appears in 3 of the 15 listings on this page. An overnight visit is usually a diagnosis and a temporary fix, since supply counters are shut until morning. Ask what the after hours call out is before the truck leaves.
Nicolet Heating & Cooling
“Nicolet has always been reasonably priced and out preformed any other company.”
Foremen Heating & Ventilating
“Dennis was very friendly and set me up with the perfect system.”
De Moulin Hvac
Berkovitz Mechanical LLC
“Duane, Craig, Dana & the staff at Berkovitz Mechanical are awesome to work with!”
Heaton Heating and Cooling
“Chris was very accommodating with my busy work schedule and got the job done quick!”
A&J Mechanical Contractors
“Fantastic Mechanical Contractor to work with”
Control Group Inc
“Came to my home same day and took care of the issue.”
Hurckman Mechanical Industries
“Our recent renovation project was completed on-time and on-budget!”
KEI Steam Solutions Inc
Why these companies made our list
What customers say about companies in Green Bay
- “Very nice to work with and furnace installed as per quote with no hidden fees.” — customer of Wesley Heating & Cooling
- “Very professional, highly knowledgeable, and great service. They replaced the furnace in my house without any issues and even took the time to give me an overview of the new system once they were done.” — customer of Foremen Heating & Ventilating
- “Julie is very friendly, honest, knowledgeable, and a joy to work with.” — customer of Hurckman Heating & Cooling
- “Apex installed a new furnace for us. They were professional, timely, and did a fantastic job.” — customer of Apex Heating and Air Conditioning
- “Replaced our furnace and air conditioner. Great service, on time, reasonably priced.” — customer of Gerondale Heating & Cooling
Excerpts from public reviews of the companies listed on this page.
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