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Furnace, AC & HVAC Repair in Oshkosh, WI
Furnace repair, air conditioning, heat pumps and HVAC service in Oshkosh and nearby towns. 19 businesses listed, 9 with confirmed emergency service. Last checked October 2026.
BH
HVAC + Electrical · Based in Greenville
Checked Score 83/100How it adds up
- Customer reviews42.7 / 454.90★ adjusted average from 8364 reviews
- Review volume15 / 158364 reviews
- Years in business15 / 1570 years
- Emergency service10 / 10Confirmed by the business
- BBB rating0 / 10No BBB rating on file
- Credentials0 / 5None on file
How we rate businessesSince 1956★ 4.9Google (8364)
Emergency serviceMon–Fri 7am–6pm; Sat–Sun 7am–12pm
Fox Valley heating, cooling, plumbing and electrical company founded in 1956, with Oshkosh service pages and 24-hour emergency help.
Does: furnace repair & install, boilers, heat pumps, air conditioner repair & install, electrical repair & installation
KZ
HVAC + Plumbing · 2860 Oregon St
Checked Score 61/100How it adds up
- Customer reviews36.1 / 454.60★ adjusted average from 38 reviews
- Review volume9.5 / 1538 reviews
- Years in business15 / 15100+ years
- Emergency service0 / 10Not confirmed
- BBB rating0 / 10No BBB rating on file
- Credentials0 / 5None on file
How we rate businesses100+ yearsin business★ 5.0Google (35)★ 1.0Yelp (3)
Mon–Fri 7am–4:30pm
Oshkosh plumbing and heating contractor for more than 100 years, serving the Fox Valley and part of Fond du Lac County.
Does: furnace install & repair, air conditioner install & repair, boilers, heat pumps, ductless systems
MH
HVAC · Based in Omro
Checked Score 83/100How it adds up
- Customer reviews42.6 / 454.89★ adjusted average from 566 reviews
- Review volume15 / 15566 reviews
- Years in business15 / 1550 years
- Emergency service10 / 10Confirmed by the business
- BBB rating0 / 10No BBB rating on file
- Credentials0 / 5None on file
How we rate businessesSince 1976★ 4.9Google (566)
Emergency service
Family-owned Omro heating and cooling company since 1976, with 24-hour emergency service.
Does: furnace install & repair, air conditioner install & repair, indoor air quality, HVAC maintenance
Still confirming: whether they serve Fond du Lac
RH
HVAC · Based in Winneconne
Checked Score 80/100How it adds up
- Customer reviews39.9 / 454.77★ adjusted average from 139 reviews
- Review volume12.9 / 15139 reviews
- Years in business15 / 1588 years
- Emergency service10 / 10Confirmed by the business
- BBB rating0 / 10No BBB rating on file
- Credentials2 / 5Focus on Energy Trade Ally
How we rate businessesSince 1938★ 4.8Google (139)
✓ Focus on Energy Trade AllyEmergency service
Winneconne heating and cooling company since 1938, homes and businesses, with 24-hour emergency service.
Does: furnaces, air conditioners, heat pumps, fan coils, thermostats
Still confirming: whether they serve Oshkosh
AH
HVAC · 4535 WI-91
Checked Score 57/100How it adds up
- Customer reviews38.1 / 454.69★ adjusted average from 33 reviews
- Review volume9.2 / 1533 reviews
- Years in business0 / 15Not confirmed yet
- Emergency service10 / 10Confirmed by the business
- BBB rating0 / 10No BBB rating on file
- Credentials0 / 5None on file
How we rate businesses★ 4.8Google (33)
Emergency serviceMon–Fri 7am–4pm
Locally owned Oshkosh HVAC and refrigeration contractor for homes and businesses, with 24/7 emergency service.
Does: HVAC repair, installation & maintenance, commercial refrigeration, boiler piping, gas piping, air purification
GM
HVAC · 520 W South Park Ave
Checked Score 52/100How it adds up
- Customer reviews31.4 / 454.40★ adjusted average from 63 reviews
- Review volume10.8 / 1563 reviews
- Years in business0 / 15Not confirmed yet
- Emergency service10 / 10Confirmed by the business
- BBB rating0 / 10No BBB rating on file
- Credentials0 / 5None on file
How we rate businesses★ 4.4Google (60)★ 5.0Yelp (3)
Emergency serviceMon–Fri 7am–4:30pm
Oshkosh mechanical contractor for homes, businesses and industry, with 24-hour emergency repair.
Does: HVAC repair & installation, HVAC maintenance, commercial refrigeration, ventilation, sheet metal
AS
HVAC · 2913 Witzel Ave
Checked Score 57/100How it adds up
- Customer reviews36.3 / 454.62★ adjusted average from 8 reviews
- Review volume5.7 / 158 reviews
- Years in business15 / 1530 years
- Emergency service0 / 10Not confirmed
- BBB rating0 / 10No BBB rating on file
- Credentials0 / 5None on file
How we rate businessesSince 1996★ 5.0Google (8)
Mon–Fri 9am–5pm
Oshkosh residential heating and cooling contractor since 1996.
Does: furnace install & repair, residential HVAC install & repair, heating & cooling, sheet metal
WH
HVAC · Based in Fond du Lac
Checked Score 48/100How it adds up
- Customer reviews22.5 / 454.00★ adjusted average from 25 reviews
- Review volume8.5 / 1525 reviews
- Years in business15 / 1575 years
- Emergency service0 / 10Not confirmed
- BBB rating0 / 10No BBB rating on file
- Credentials2 / 5Focus on Energy Trade Ally
How we rate businessesSince 1951★ 4.0Google (25)
✓ Focus on Energy Trade AllyMon–Fri 8am–4:30pm
Heating and cooling company founded in 1951, with offices in Green Bay, Oshkosh and Fond du Lac.
Does: furnace repair, heat pump repair, air conditioner repair, HVAC installation
OH
HVAC · 920 S Main St
Checked Score 53/100How it adds up
- Customer reviews39.9 / 454.77★ adjusted average from 145 reviews
- Review volume13 / 15145 reviews
- Years in business0 / 15Not confirmed yet
- Emergency service0 / 10Not confirmed
- BBB rating0 / 10No BBB rating on file
- Credentials0 / 5None on file
How we rate businesses★ 4.8Google (145)
Mon–Thu 8am–4:30pm; Fri 8am–3:30pm
Oshkosh heating and cooling company for homes and businesses.
Does: heating service & installation, air conditioning service & installation
AB
HVAC · 2944 Jackson St
Checked Score 49/100How it adds up
- Customer reviews37.3 / 454.66★ adjusted average from 81 reviews
- Review volume11.5 / 1581 reviews
- Years in business0 / 15Not confirmed yet
- Emergency service0 / 10Not confirmed
- BBB rating0 / 10No BBB rating on file
- Credentials0 / 5None on file
How we rate businesses★ 4.7Google (81)
Mon–Fri 8am–4:30pm
Above & Beyond Expectations Heating and Cooling, an Oshkosh HVAC company covering furnaces, boilers, heat pumps and AC.
Does: furnace sales, install & repair, boilers, heat pumps, air conditioner install & repair, indoor air quality
RH
HVAC · 5154 David Dr
Not scored yetnot enough public infoHow it adds up
- Customer reviews0 / 45No Google or Yelp reviews on file
- Review volume0 / 150 reviews
- Years in business0 / 15Not confirmed yet
- Emergency service10 / 10Confirmed by the business
- BBB rating0 / 10No BBB rating on file
- Credentials0 / 5None on file
How we rate businessesEmergency service
Oshkosh heating and cooling contractor with 24-hour emergency service.
Does: furnace install & repair, furnace maintenance, air conditioner install & repair, Carrier equipment, light commercial HVAC
Still confirming: hours
TH
HVAC · 901 Otter Ave
Checked Score 50/100How it adds up
- Customer reviews41.5 / 454.84★ adjusted average from 27 reviews
- Review volume8.7 / 1527 reviews
- Years in business0 / 15Not confirmed yet
- Emergency service0 / 10Not confirmed
- BBB rating0 / 10No BBB rating on file
- Credentials0 / 5None on file
How we rate businesses★ 5.0Google (27)
Mon–Fri 8am–4pm
Oshkosh heating and air conditioning service.
Does: heating service, air conditioning service
MA
HVAC · Based in Winneconne
Checked Score 64/100How it adds up
- Customer reviews43.4 / 454.93★ adjusted average from 64 reviews
- Review volume10.9 / 1564 reviews
- Years in business0 / 15Not confirmed yet
- Emergency service10 / 10Confirmed by the business
- BBB rating0 / 10No BBB rating on file
- Credentials0 / 5None on file
How we rate businesses★ 5.0Google (64)
Emergency serviceAfter-hours line: (920) 379-7191Mon–Fri 7:30am–4pm
Winneconne residential heating and cooling contractor serving Oshkosh and Neenah, with a separate after-hours emergency line.
Does: furnace sales, install & repair, air conditioner sales, install & repair, new construction HVAC, remodel HVAC, Carrier equipment
EC
HVAC + Plumbing · Based in North Fond du Lac
Checked Score 56/100How it adds up
- Customer reviews37.6 / 454.67★ adjusted average from 26 reviews
- Review volume8.6 / 1526 reviews
- Years in business0 / 15Not confirmed yet
- Emergency service10 / 10Confirmed by the business
- BBB rating0 / 10No BBB rating on file
- Credentials0 / 5None on file
How we rate businesses★ 4.8Google (26)
Emergency serviceMon–Fri 7:30am–4:30pm
North Fond du Lac heating, cooling and water heater company with service 24 hours a day, weekends and holidays included.
Does: furnace repair & replacement, air conditioner repair & replacement, boilers, heat pumps, water heater repair & replacement
BH
HVAC · Based in Ripon
Checked Score 60/100How it adds up
- Customer reviews44.9 / 455.00★ adjusted average from 1828 reviews
- Review volume15 / 151828 reviews
- Years in business0 / 15Not confirmed yet
- Emergency service0 / 10Not confirmed
- BBB rating0 / 10No BBB rating on file
- Credentials0 / 5None on file
How we rate businesses★ 5.0Google (1828)
Mon–Thu 7am–4:30pm; Fri 7am–3pm
Ripon heating and cooling contractor that serves Fond du Lac County and repairs most brands.
Does: furnace repair & installation, air conditioner repair & installation, HVAC replacement, HVAC maintenance
TH
HVAC · Oshkosh
Not scored yetnot enough public infoHow it adds up
- Customer reviews0 / 45No Google or Yelp reviews on file
- Review volume0 / 150 reviews
- Years in business0 / 15Not confirmed yet
- Emergency service10 / 10Confirmed by the business
- BBB rating0 / 10No BBB rating on file
- Credentials0 / 5None on file
How we rate businessesEmergency service
Heating and cooling company serving Oshkosh and Winnebago County, with 24/7 emergency service.
Does: heating install & repair, cooling install & repair, HVAC maintenance, emergency HVAC service
Still confirming: street address, hours
MO
HVAC · Based in Fond du Lac
Checked Score 22/100How it adds up
- Customer reviews1.6 / 453.07★ adjusted average from 6 reviews
- Review volume5.1 / 156 reviews
- Years in business15 / 1585 years
- Emergency service0 / 10Not confirmed
- BBB rating0 / 10No BBB rating on file
- Credentials0 / 5None on file
How we rate businessesSince 1941★ 2.3Yelp (6)
Mon–Fri 8am–5pm
Locally owned since 1941. Fuel and propane delivery plus furnace and AC repair and installs.
Does: furnace repair & installation, air conditioner repair & installation, HVAC tune-ups, hydronic heating, heating oil delivery
CT
HVAC · Based in Ripon
Checked Score 54/100How it adds up
- Customer reviews40.1 / 454.78★ adjusted average from 244 reviews
- Review volume14.3 / 15244 reviews
- Years in business0 / 15Not confirmed yet
- Emergency service0 / 10Not confirmed
- BBB rating0 / 10No BBB rating on file
- Credentials0 / 5None on file
How we rate businesses★ 4.8Google (244)
24-hour emergency service for Comfort Assurance membersMon–Thu 7:30am–4:30pm; Fri 7:30am–12pm
Ripon heating and cooling contractor with a dedicated Oshkosh service area.
Does: furnace repair & install, boilers, air conditioner repair & install, ductless systems, indoor air quality
HH
HVAC · Based in Omro
Checked Score 49/100How it adds up
- Customer reviews41 / 454.82★ adjusted average from 23 reviews
- Review volume8.3 / 1523 reviews
- Years in business0 / 15Not confirmed yet
- Emergency service0 / 10Not confirmed
- BBB rating0 / 10No BBB rating on file
- Credentials0 / 5None on file
How we rate businesses★ 5.0Google (23)
Omro heating and cooling contractor serving Oshkosh and Winnebago County.
Does: furnace install & repair, air conditioner install & repair, HVAC maintenance, all-brand AC service
Still confirming: after-hours service