Kurt Zentner & Sons
“We will be using Kurt Zentner & Sons for all of our future plumbing and HVAC needs.”
Best HVAC Contractors in Oshkosh, WI
15 companies listed · 9 in Oshkosh · 3 open 24/7 · 4 open weekends · 13 rated 4.5+
Data verified October 21, 2026
Oshkosh Heating & AIR
“Shoutout to Ty who recently came to service my mini-split AC units for their annual check-up.”
A&be Heating and Cooling
“Half the price of the other quotes I got and they came out next day with the parts and got it done for me.”
Gartman Mechanical Services
“Additionally, when we had a question regarding the installation of the new boiler, they were very accommodating.”
Anderson Hvac LLC
“My furnace ran flawlessly all last winter as did my A/C this past summer, and the tech out here this year to service my furnace said that everything looks good and it should run fine this winter.”
Thompson Heating and Cooling Services
“He has treated my parents with so much care and I am incredibly happy that there is someone in the business who is as kind as Ed.”
The 15 companies listed for Oshkosh, 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: Oshkosh, WI
Of the 15 companies we list here, 9 are in Oshkosh itself and 6 come from Omro (2, 8 mi), Winneconne (2, 9 mi) and Neenah (2, 11 mi). The companies on this page are rated from 4.3 to 5.0 across 976 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 professionalism (91%), responsiveness (82%) and quality (80%). The topics that come up most in reviews of the companies on this page are "price" and "knowledge". 3 are open around the clock and 4 are open on weekends. 2 show a license on their websites and 2 have a BBB rating of A or A+. 12 have ten or more years of experience, the longest 97 years. 5 offer emergency call-outs; 7 offer financing or payment plans; 3 give free estimates; 4 are family- or locally-owned and 3 list coupons or special offers. We have a website on file for 12 of the companies on this page; 11 publish a contact page and 4 list a public email. 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.
Which companies listed for Oshkosh 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.
Andresen Sheet Metal Heating & Cooling
“Was able to pick up part at his house after hours and he even gave me so good information on my ac unit and doing the repair.”
Hvac Armor Oshkosh
“We were told By another tech that we needed expensive repair only to be told by lane that everything looks good.”
Weber Mark Heating & Cooling
“I will definitely be recommending them to friends and family and I will never call anyone else.”
Martens Heating and Cooling
“We have always been very happy with all our work done by martensvheating.”
Ryf Heating & Air Conditioning
“They installed a new Bryant 987M Evolution furnace along with a new thermostat and humidifier.”
Jack Kiefer Heating & Air
“They where not just trying to get my AC running, but to fix and get the unit running more efficiently than before.”
MCM Air
“They do great work in a timely manner and are very easy to work with!”
Drucks Plumbing & Heating Co.
“On time, very nice, fixed a small problem and was on his way.”
Hometown Heating & Cooling
“With an old furnace and AC, he always makes time to squeeze us into his busy day!”
Why these companies made our list
What customers say about companies in Oshkosh
- “Very responsive, competent and honest company. Identified the problem right away, no surprises.” — customer of A&be Heating and Cooling
- “After choosing to go with his company, they arrived for install exactly when stated and were professional and respectful.” — customer of Anderson Hvac LLC
- “Fast, quality, and honest service. They helped out immediately when our furnace went out in the winter.” — customer of Oshkosh Heating & AIR
Excerpts from public reviews of the companies listed on this page.
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