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TRUSTED BY SUN PRAIRIE, WI HOMEOWNERS

  • Average homeowner rating star icon4.8
    Average homeowner rating
  • Verified reviews icon940
    Verified heating and air conditioning services reviews

Top-Rated Heating and air conditioning pros in Sun Prairie - Updated Nov 2026

Avatar for Clark Heating & Cooling
Clark Heating & Cooling
4.8(
453
)
Gas Furnace / Forced Air Heating System - InstallCentral A/C - InstallBoiler or Radiator Heating System - Install or Replace+39 more

Serving Sun Prairie, WI and surrounding areas

Approved

In business since 1980

Free estimates

Emergency services offered

"I had been unhappy with another firm in Madison that has worked on both our furnace and central air conditioner, so I contacted Clark, based on a recommendation from Dan of Jenko's garage doors, and checking on Angie's list, where Clark was highly rated. They sent a serviceman (I think it was Kevin) last Tuesday, who inspected our system, which had been installed in 1992, and determined it was leaking Freon. He indicated that repair was not a smart option on an old system and recommended a new air conditioner. Andy came came out on Thursday to give us an estimate. I asked if he could have it installed on Friday, as it was very hot and humid and we were having guests over for dinner. He said he could make it work. On Friday his crew (Jeff and his partner) spent about 5 hours removing the old unit and installing the new one. They were completely professional and thorough. By 5:00 the house was cooling down. I highly recommend Clark Heating and Cooling."
Ductwork going around framing in new home build
New Home Ductwork
PRODUCTS AND SERVICES
Additional Photos
Additional Photos

+4

Response time1 day
Response rate100%
3 neighbors recently requested a quote
Avatar for KETTLE MORAINE HEATING & AIR CONDITIONING LLC
KETTLE MORAINE HEATING & AIR CONDITIONING LLC
4.8(
229
)
Central A/C - InstallBoiler or Radiator Heating System - Install or ReplaceBoiler or Radiator Heating System - Install or Replace - For Business+47 more

Serving Sun Prairie, WI and surrounding areas

Approved

In business since 1987

Free estimates

Emergency services offered

"I've been using Kettle Moraine Heating for my annual furnace and AC tune-ups for a while now, and I couldn't be happier with the service. Khamya Little was professional, thorough, and took the time to make sure everything was running perfectly. It's always a relief knowing my heating and cooling systems are in great hands. The team at Kettle Moraine consistently delivers top-notch service, they're prompt, knowledgeable, and genuinely care about doing the job right. Highly recommend them to any homeowner looking for reliable HVAC maintenance!"
Radiant In floor Heating
Furnace Replacement with Humidifier
Additional Photos
Additional Photos
Additional Photos

+8

Response time2 days
Response rate100%
2 neighbors recently requested a quote
Avatar for Cardinal Heating & Air Conditioning
Cardinal Heating & Air Conditioning
4.8(
166
)
Air Ducts & Vents - CleanCentral A/C - InstallCentral A/C - Service or Repair+10 more

Serving Sun Prairie, WI and surrounding areas

Approved

In business since 1985

Free estimates

Emergency services offered

"I've also used Cardinal for electrical and HVAC service. Cardinal has the best service and technicians of any HVAC, plumbing and electrical service I've ever used. Very well run, customer focused business, with prompt service and very fair pricing."
Cardinal Heating & Air
Cardinal Heating & Air
Cardinal Heating & Air
Cardinal Heating & Air
Cardinal Heating & Air

+15

145 neighbors recently requested a quote
Recommended by91%of homeowners
Avatar for RUAH HEATING AND COOLING LLC
RUAH HEATING AND COOLING LLC
5.0(
7
)
Central A/C - InstallGas Furnace / Forced Air Heating System - InstallGas Furnace / Forced Air Heating System - Repair+7 more

Serving Sun Prairie, WI and surrounding areas

Approved

Super Service Award Winner

In business since 2020

Free estimates

Emergency services offered

Faith-based, family owned residential HVAC Contractor. Specializing in residential sales and service of forced air, ductless and hydronic systems. Dedicated to serving the community through honesty and affordable pricing. Come and see. Call ir email us today, we would love to hear from you. 715-396-1381 or [email protected]

Response time1 day
Response rate94%
32 neighbors recently requested a quote
Avatar for Southport Plumbing, Heating & Cooling
Southport Plumbing, Heating & Cooling
5.0(
11
)
Gas Furnace / Forced Air Heating System - InstallCentral A/C - InstallGas Furnace / Forced Air Heating System - Repair+10 more

Serving Sun Prairie, WI and surrounding areas

Approved

In business since 2005

Free estimates

Emergency services offered

At Southport Plumbing, Heating & Cooling we're A+ rated by the BBB. Our technicians are NATE certified to meet national standards of excellence, and we're a Carrier® Factory Authorized Dealer, recently cited as the #1 medium-sized business to work for by the Milwaukee Journal Sentinel. We treat our team well and hold them to high professional standards. Our up front, transparent pricing, great customer service, and honesty in our business practices make us the plumbing and HVAC company that you'll feel good working with on a regular basis, with 100% satisfaction guaranteed.

Boiler
Upstairs Furnace
Lineset/Electrical
Basement Furnace
Air Conditioner

+11

16 neighbors recently requested a quote
Affordable Quality Heating & Air Conditioning, LLC
5.0(
6
)
Gas Furnace / Forced Air Heating System - InstallCentral A/C - Service or RepairCentral A/C - Install+17 more

Serving Sun Prairie, WI and surrounding areas

Approved

In business since 2014

Free estimates

Credit card accepted

We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business! \nBook with us online or feel free to give us a call today! \n

Response time2 days
9 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Hooper Corporation
Hooper Corporation
5.0(
4
)
Central A/C - InstallGas Furnace / Forced Air Heating System - InstallCentral A/C - Service or Repair+11 more

Serving Sun Prairie, WI and surrounding areas

Approved

Super Service Award Winner

In business since 2017

Free estimates

Emergency services offered

When your pipes freeze or furnace quits, our work begins. Hooper’s service technicians arrive equipped with fully stocked service vans and are ready to roll at a moment’s notice. We’ve been caring for customers in the Madison area since 1913 and offer 24-hour residential and commercial service. You can rely on Hooper for all your plumbing, heating and cooling, and fire protection needs. When you need a trusted service partner, Hooper is here.

Back of furnace
Furnace
Humidifier
Furnace front #2
Response time1 day
6 neighbors recently requested a quote
Avatar for JDC Contracting
JDC Contracting
4.8(
36
)
Gas Boiler or Radiator Heating System - InstallOil Boiler or Radiator Heating System - InstallOil Boiler or Radiator Heating System - Repair+1 more

Serving Sun Prairie, WI and surrounding areas

Approved

In business since 2020

Free estimates

Warranties offered

"We had a furnace replaced by Shane. He was very professional about everything, was willing to do what he could to get our heat back on and gave us a good price for the work done. I definitely recommend JDC contracting for HVAC repair and replacement."
Response time1 day
2 neighbors recently requested a quote
Recommended by88%of homeowners
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Heating and Air Conditioning FAQs, answered by experts

No, it’s not normal for AC vents to drip condensation. A sweating AC vent is a sign of something wrong and can lead to issues like air duct rust or mold growth. Your HVAC unit might not be working efficiently because of a dirty filter or clogged ducts. Alternatively, your ductwork might not have adequate insulation, which allows the cool air in the ducts to meet the humid air outside, causing condensation. 

There are plenty of different not-so-great sounds to hear from your air conditioning unit, like squealing, grinding, water running, excessive gurgling, banging, and clanking. Each of these sounds can indicate a different malfunction with your unit, so it’s important to have a professional assess the problem before it gets worse.

On a summer day, expect your AC to run between 12 and 16 hours. However, this time frame depends on just how hot it is outside and the comfortable temperature you’re hoping to maintain indoors. Assuming the size of your AC is appropriate for the space you’re trying to cool, it shouldn’t be a problem for it to work this many hours.

Signs that your air conditioner capacitor is bad or failing include a range of symptoms. The AC unit may not turn on at all, or it might struggle to start before shutting down randomly or in the middle of a cooling cycle. You might hear a humming or banging noise when it attempts to start, or the compressor might hum without the unit actually running. Other indicators include a smell or smoke coming from the unit, the blower circulating room-temperature air instead of cold air, and an unexpected increase in your energy bills.

While all portable AC units will collect moisture as part of their cooling and dehumidifying process, whether and how often you need to drain them depends on what kind of unit you have and the natural humidity levels where you live. For example, if you live in a very dry area and have a self-evaporating unit, you may not need to drain your portable AC very often at all. Some units may automatically drain collected moisture out the window through their exhaust vent.

The Sun Prairie, WI homeowners’ guide to heating and air conditioning services

From average costs to expert advice, get all the answers you need to get your job done.