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TRUSTED BY DEERFIELD, WI HOMEOWNERS

  • Average homeowner rating star icon4.8
    Average homeowner rating
  • Verified reviews icon545
    Verified heating and air conditioning services reviews

Find Heating and air conditioning pros in Deerfield

Avatar for Clark Heating & Cooling
Clark Heating & Cooling
4.8(
453
)

Serving Deerfield, WI and surrounding areas

Approved

In business since 1980

Free estimates

Emergency services offered

"  IT went great!! Keith and his 4 men did a fantastic job as all ways. Clark Heating has been doing my HVAC work for years now. I would think of calling any other contractor. His price products and help are the best you can Buy.
This system was a tough one It was a old furnace in a Steel building attic hard area to work very close Quarters. The building consist of 3 large areas and a bathe room. They separately zoned all areas with each having their own thermostat. After just one day we can really tell how even the heating is. Actually had a day we turned on the air WOW works Great!
The unit is very Quiet.
All the ducting was new from ground up very neatly run. The Clean up each of the Two days it took the Men Cleaned up as though they weren't there.
This Is now my forth Job they converted, Impeccable job on all four. Would'nt use any one else!!
Thank you Keith, Jeremy, Alan Matt, Bella  For a job well done.
"
Ductwork going around framing in new home build
New Home Ductwork
PRODUCTS AND SERVICES
Additional Photos
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+4

2 neighbors recently requested a quote
Recommended by97%of homeowners
Avatar for Cardinal Heating & Air Conditioning
Cardinal Heating & Air Conditioning
4.8(
185
)

Serving Deerfield, WI and surrounding areas

Approved (Corporate)

Super Service Award Winner

In business since 1984

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."
Additional Photos
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+55

4 neighbors recently requested a quote
Recommended by79%of homeowners
Avatar for KETTLE MORAINE HEATING & AIR CONDITIONING LLC
KETTLE MORAINE HEATING & AIR CONDITIONING LLC
4.8(
228
)

Serving Deerfield, WI and surrounding areas

Approved

In business since 1987

Free estimates

Emergency services offered

"Doug has serviced my HVAC system 3 times. He has been consistently prompt, courteous, and professional. Additionally , I always learn something about taking care of my system. Thanks!"
Radiant In floor Heating
Furnace Replacement with Humidifier
Additional Photos
Additional Photos
Additional Photos

+8

14 neighbors recently requested a quote
Recommended by56%of homeowners
Avatar for Southport Home Services
Southport Home Services
5.0(
11
)

Serving Deerfield, WI and surrounding areas

Approved

In business since 2005

Free estimates

Emergency services offered

"Justin took care to not over sell me. Only what I needed and understood. The install team were tidy, efficient, and educated me about the safety approaches when changing the humidifier filter. That filter and the furnace filter are the same that was used on my old system. They were professional and personable."
Boiler
Upstairs Furnace
Lineset/Electrical
Basement Furnace
Air Conditioner

+11

25 neighbors recently requested a quote
Affordable Quality Heating & Air Conditioning, LLC
5.0(
6
)

Serving Deerfield, 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 time3 days
10 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for JDC Contracting
JDC Contracting
4.8(
36
)

Serving Deerfield, 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
Avatar for Hooper Corporation
Hooper Corporation
5.0(
4
)

Serving Deerfield, 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
1 neighbors recently requested a quote
Avatar for All Comfort Services
All Comfort Services
5.0(
6
)

Serving Deerfield, WI and surrounding areas

Approved

In business since 1973

Free estimates

Emergency services offered

All Comfort Services is a 50+ year old employee-owned heating, cooling, plumbing, and electrical contractor serving residential and commercial customers in Dane and parts of Rock, Columbia, and Jefferson counties. We may need to confirm a specific zip code that we service. Our team understands that when you call a local electrician, you need a trained, certified, and insured professional who will arrive on time and be ready to provide the solutions you need. Our repair dispatch fee is $149.

Generator
Generator
Panel Installation
Service Upgrade
9 neighbors recently requested a quote
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Heating and Air Conditioning questions, answered by experts

Vents may blow air even though the air conditioning system is off because of the pressure difference between indoor and outdoor air or drafts from leaky ducts. Check for leaks or drafts in the ductwork or around windows and doors.

A dirty air conditioning coil can cause your unit to work overtime, leading to reduced efficiency, higher energy use, more wear and tear, and possible ice buildup. If the coils corrode, refrigerant can leak, causing damage, possible mold growth, and an expensive repair bill. By cleaning your AC coils once a year, you’ll have a more efficient unit that’s likely to last longer.

Freon will go in the refrigerant lines near the back of your AC unit. Look for small ports with caps on a thin copper line—the Freon goes into those ports. You are best off hiring a licensed HVAC professional who can complete the job safely and correctly.

Replacing an HVAC system does not always include new ductwork. The decision depends on the condition of your existing ducts. If they are in good shape, correctly sized for the new unit, and meet current standards, they can often be reused. However, if the ducts are damaged, poorly designed, or improperly sized, they will likely need to be replaced or upgraded to ensure the new system operates efficiently. An HVAC contractor will assess your ductwork and recommend the best course of action. Typically, ductwork is purchased separately, and a full replacement will add to the overall project cost.

You need to know the square footage of your home first. Multiply that number by 20, which will get you the BTUs (British Thermal Units) needed to cool your home efficiently. Homes up to 1,000 square feet usually need a 1.5-ton unit; homes 1,000 to 1,200 square feet usually need a 1.75-ton unit, and homes 1,200 to 1,400 square feet usually need a 1.9-ton unit. Talk to a local pro for more specific advice on your home. 

The Deerfield, 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.