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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(
201
)
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
167 neighbors recently requested a quote
Recommended by85%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."
Cardinal Heating & Air
Cardinal Heating & Air
Cardinal Heating & Air
Cardinal Heating & Air
Cardinal Heating & Air

+15

183 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 Home Services 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

20 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
5 neighbors recently requested a quote
Avatar for Everlight HVAC LLC
Everlight HVAC LLC
New to Angi
Central A/C - InstallCentral A/C - Service or RepairGas Furnace / Forced Air Heating System - Install+10 more

Serving Jefferson, WI and surrounding areas

Approved

In business since 2018

Free estimates

Emergency services offered

Fast, reliable heating and cooling service from a trusted HVAC team.\n\nWhen your AC stops cooling or your furnace won’t start, comfort disappears fast. Don’t let a minor issue turn into a major headache. With extreme seasons, reliable heating and cooling isn’t optional—it’s essential.\n\n24/7 emergency HVAC repair is available.

Everlight HVAC
Everlight HVAC
Everlight HVAC
Everlight HVAC
Everlight HVAC

+3

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

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Heating and Air Conditioning questions, answered by experts

A calculation method that your HVAC contractor will use to ensure your system does what it's supposed to is measuring duct output, or its CFM. The calculation requires knowing the cross-sectional area of the ductwork and determining the air speed past any given point within it.

Yes, you should turn off your AC if it’s leaking. Turning off the system prevents more condensation from leaking and reduces strain on the unit if a damaged internal component or lack of refrigerant is the cause. While this may temporarily stop the leak, water can continue to drip from a thawing coil even after the system is off. As soon as you notice a leak, turn off the unit and investigate the source or call a professional for an inspection.

Choosing between a ductless mini-split and central AC depends on your specific needs. Ductless mini-splits are ideal for targeted cooling, providing zoned comfort and energy efficiency. They are perfect for smaller spaces or homes lacking ductwork. In contrast, central AC offers consistent cooling throughout the entire house but requires ductwork and may be less energy-efficient for smaller spaces. 

Consider factors like budget, home size, and cooling preferences to make the right choice. Combining both systems, with a ductless mini-split in specific areas, can also be a viable solution for tailored comfort and overall efficiency.

While it's generally safe to stay in a home with a coolant leak if your home is properly ventilated, it's important to have a professional come out to assess the situation right away. You should evacuate your home if you notice any powerful fumes. Additionally, you should leave your home if you are experiencing headaches or dizziness.

Yes, ventless portable air conditioners exist, and not all standard portable air conditioners must be vented through a window.

Ventless portable units, often called evaporative coolers, do not have exhaust hoses. They use a water reservoir and a cooling pad to add moisture to the air, making it feel cooler. These units work best in dry climates because humid areas cannot absorb much additional moisture.

For standard portable air conditioners that do require venting, a window is not the only option; they can also be vented through a door, wall, or ceiling. However, it is essential to vent these units properly. Running a standard portable AC without venting it is counterproductive because it needs to expel heat to cool the room. Failing to do so will only increase the room's temperature.

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.