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TRUSTED BY JEFFERSON, WI HOMEOWNERS

  • Average homeowner rating star icon4.7
    Average homeowner rating
  • Verified reviews icon128
    Verified heating and air conditioning services reviews

Find Heating and air conditioning pros in Jefferson

Avatar for Capital Heating & Cooling
Capital Heating & Cooling
4.2(
197
)
Air Ducts & Vents - Clean

Serving Jefferson, WI and surrounding areas

Approved

In business since 2001

Free estimates

Emergency services offered

"My duct cleaning turned into a new HVAC system for the house. Everyone was awesome and great to work with. Joshua the duct cleaner, Brandon the sales rep, Jake the office rep. And Seth Joshua s boss we re greatly helpful."
Dirty furnace fliter
AC Repair in Brookfield
AC Replacement
Geothermal Heating System Installed
Capital HVAC Geothermal installer

+34

Response time10 mins
166 neighbors recently requested a quote
Recommended by86%of homeowners
Avatar for Cardinal Heating & Air Conditioning
Cardinal Heating & Air Conditioning
4.8(
164
)
Central A/C - InstallCentral A/C - Service or RepairAir Ducts & Vents - Clean+10 more

Serving Jefferson, 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."
166 neighbors recently requested a quote
Recommended by91%of homeowners
Avatar for Southport Home Services
Southport Home Services
5.0(
11
)
Central A/C - InstallGas Furnace / Forced Air Heating System - InstallCentral A/C - Service or Repair+10 more

Serving Jefferson, 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

24 neighbors recently requested a quote
Avatar for All Comfort Services
All Comfort Services
5.0(
6
)
Electrical Baseboard or Wall Heater - Install

Serving Jefferson, 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
KC Cleaning Crew
New to Angi
Air Ducts & Vents - Clean

Serving Jefferson, WI and surrounding areas

Approved

Offers commercial services

At KC Cleaning Crew, we specialize in post construction cleaning and general cleaning that gets your space ready for the spotlight — whether it's a grand opening, new office launch, or a freshly renovated property. We know the final step before opening your doors is making sure everything is spotless, safe, and presentation-ready. That’s where we come in.\n\nAs a proud local business, we’re more than just a cleaning crew — we’re part of the community. We’re committed to supporting other local businesses by providing reliable, detailed cleaning services that help you shine from day one.\n\nFrom dust to debris, we handle the mess so you can focus. We work with you to ensure all your cleaning needs are met with quality and in a timely manner. \n\nClean space and Clean start\n

Three cousins cleaning
New to Angi
Air Ducts & Vents - Clean

Serving Jefferson, WI and surrounding areas

Approved

Three Cousins Cleaning is a family business run by three cousins who are also hardworking moms. We know firsthand how important it is to have a clean and healthy space for your family and your workplace.\n\nWe bring years of experience, strong work ethic, and attention to detail to every job. Our team is reliable, trustworthy, and flexible to fit your schedule. Whether it’s your home or your business, we clean with care and pride.\n\nWhen you choose Three Cousins Cleaning, you’re choosing family, honesty, and quality service.

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Heating and Air Conditioning questions, answered by experts

Some of the signs of HVAC issues include rising energy bills, rooms not cooling or heating properly, loud noises when in operation, and signs of condensation. To illustrate, if you’re wondering how to stop condensation on air vents, you’ll need to have your HVAC inspected. 

It depends on the specifics of your warranty. The motor is likely not covered if you’re working with a limited warranty. The same goes for other components like the compressor and evaporator coil. Some extended warranties will cover the blower and fan motor, so read the fine print before signing up. Additionally, the manufacturer may offer a warranty for the parts, including the motor, though there’s likely to be a strict time limit for this coverage.

Most HVAC companies recommend against setting your AC below 70 as it could freeze up the system and cause more problems. Regardless of how hot it is outside, there is generally a 20 degree difference between the outside and inside temperatures, so even if it’s 100 degrees outside, your AC will likely not be able to cool your home to 70 degrees.

If your home has an existing forced-air heat system, you can add a central air conditioner to it. An HVAC technician can retrofit your forced-air heating system by installing an evaporator coil onto the furnace plenum, the box next to the furnace that draws in air. Once installed, the air conditioning coils use the furnace’s blower to circulate the air.

If refrigerant levels are low, it can cause the evaporator coil to freeze up. Low freon causes a drop in pressure, which will make the coil too cold and cause moisture to freeze on the coil. Your system may be low on refrigerant because of a leak

Make sure to have maintenance performed twice a year, and contact your local HVAC technician if you suspect your system has low freon levels.

The Jefferson, 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.