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AC units after being repaired by a local pro

5 Best AC Repair Services in Waukesha, WI

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Written By Max Peterson|Last Updated: May 18, 2024

Waukesha residents are well-acquainted with the area's strong summertime heat and dry, dusty air, and will turn to top-notch air conditioners (ACs) to shield them from the heat. If you are in need of AC repairs in Waukesha, look no further than the following vendors. Whether it's simple repairs or a full replacement you need, This Old House recommends starting your AC repair company search with these highly-rated Waukesha providers.

Top AC Repair Companies in Waukesha, WI

Quality Heating & Sheet Metal Company, Inc. Logo

Quality Heating & Sheet Metal Company

Based on 367 customer reviews.

Services Offered

MaintenanceAc InstallationAc RepairIndoor Air QualityEmergency ServicesFurnace InstallationDuctlessFurnace RepairZoning SystemsBoiler Installation


  • Free quote
  • Prompt service delivery
  • Clear pricing policy
2840 N Brookfield Rd Ste 2, Brookfield, WI 262-421-4623 qualityheating.com
The Thielmann Group Logo

The Thielmann Group

Based on 496 customer reviews.

Services Offered

Furnace RepairAc RepairDuctlessEmergency ServicesDuct CleaningBoiler InstallationAc InstallationIndoor Air QualityMaintenanceFurnace Installation


  • Reliable customer support
  • Clear pricing policy
  • Informative resources
17020 W National Ave, New Berlin, WI 262-299-6197 thielmannheating.com
On Time Heating & Cooling Logo

On Time Heating & Cooling

Based on 278 customer reviews.

Services Offered

Furnace RepairDuct CleaningInspectionAc InstallationFurnace InstallationEmergency ServicesAc RepairMaintenance


  • Clear pricing policy
  • Reliable customer support
  • Informative resources
W226n887 Eastmound Dr Suite C, Waukesha, WI 262-671-8999 otheating.com
HoneyCreek Heating, Cooling & Electric, LLC Logo

HoneyCreek Heating, Cooling & Electric

Based on 194 customer reviews.

Services Offered

Ac InstallationFurnace InstallationBoiler InstallationBoiler RepairAc RepairEmergency ServicesFurnace RepairDuctlessFiltrationIndoor Air QualityMaintenance


  • Free quote
  • Reliable customer support
  • Clear pricing policy
N63w22633 Main St Ste. 107, Sussex, WI 262-309-6498 honeycreekheatingandcooling.com

More Local Hvac Companies

Prestige Heating & Cooling

User Reviews: 4.7/5 

W160N5761 Cheryln Dr
Menomonee Falls, WI 53051

Grenz Service Company LLC

User Reviews: 4.7/5 

West, 250 Main Street
Delafield, WI 53018

Tom's Heating Service

User Reviews: 4.6/5 

212 W St Paul Ave
Waukesha, WI 53188

Gregg Heating & Air Conditioning

User Reviews: 4.6/5 

2165 S 170th St
New Berlin, WI 53151

Aire Serv of Oconomowoc

User Reviews: 4.6/5 

N48 W28870, County Rd JK
Hartland, WI 53029

Alpha Heating & Cooling LLC

User Reviews: 4.6/5 

S15W33816 Wolf Rd # G
Oconomowoc, WI 53066

Donovan & Jorgenson

User Reviews: 4.6/5 

16935 W Greenfield Ave
New Berlin, WI 53151

Midwest Heating & Cooling

User Reviews: 5/5 

421 McKenzie Dr
Mukwonago, WI 53149

West Allis Heating & Air Conditioning, Inc.

User Reviews: 5/5 

1827 S 76th St
West Allis, WI 53214

To share feedback or ask a question about this article, send a note to our Reviews Team at reviewsteam@thisoldhousereviews.com.

AC units after being repaired by a local pro

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Facts about Waukesha
Average Max Temp Percentile:21.9%
August Average Max Temp:79.1°F
Climate Zone:Cold
Average Energy Cost:$0.16/kWh
Median Year Houses Built:1982
Average Heat Waves per Year:0.41

Expert Tips By

This Old House empowers homeowners with the knowledge and tools they need to tackle various projects and navigate the complexities of homeownership.

Common Types of Air Conditioners

There are a few different kinds of air conditioner systems on the Waukesha market. While HVAC professionals can work with most types, knowing which one you have will ease your company search.

  • Portable air conditioners: As the name hints, portable ACs don't require permanent installation or ductwork. Instead, they remove hot air through an exhaust hose connected to a window or nearby vent. They're preferred for condos, apartments, or individual rooms.
  • Split ACs: Split AC units have two main elements: one indoors and one outdoors. They provide silent operation, improved energy efficiency, ductwork options, and more cooling capability versus mini-splits.
  • Central AC: These are the most common home air conditioners, offering consistent, precise temperature control. They feature a central unit that cools and purifies outside air and sends it through ducts to various rooms in your home.
  • Window ACs: Window air conditioners are a popular choice for Waukesha condos, townhomes, and apartments. These compact, affordable units are designed for cooling single rooms and small spaces, and they fit snugly in a window frame or dedicated wall slot. Many window-mounted AC users deploy their units without professional assistance, though technicians can still help with maintenance and repairs.
  • Ductless mini-split: Ductless mini-split ACs have an outdoor unit and multiple interior units, with no ductwork required. They offer higher energy efficiency, flexible installation options, and individual room temperature control.

How to Choose Your Waukesha AC Repair Service

While you might want to resolve your AC issue quickly, you should do your research before committing to a repair service. Take the following steps to ensure you find the top-rated company for your home.

Confirm the Company Is Properly Licensed and Insured

Wisconsin HVAC contractors are licensed through the Department of Safety and Professional Services. Even with this license, an HVAC company must still subcontract electrical and plumbing work.

You should also verify a company has sufficient liability coverage, even if your state doesn't require it. Choosing an insured company will protect you if accidents happen during work.

Read Customer Reviews

Read customer reviews on the Better Business Bureau (BBB) website for each company you're interested in. The BBB recognizes businesses that resolve complaints professionally and honor their warranties.

It's common for even the best AC repair companies to have both positive and negative reviews. Read each one carefully, and avoid a company if most reviewers had subpar experiences.

Compare Estimates

We recommend getting at least three different estimates to find the best cost and services. Get a written copy of each quote, and learn more about emergency repair availability, manufacturer warranties, installer guarantees and permitting fees.

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Frequently Asked Questions About AC Repair in Waukesha

What's the cost of an AC repair job in Waukesha?

Your AC unit repair costs will hinge on the type of unit you have and the malfunctioning part. A basic repair job like sorting out a thermostat might cost $150–$250, whereas a more intricate fix like exchanging the compressor will be more expensive.

See the average costs for common AC repairs below.

Common RepairAverage Cost
Clogged air filter$64–$171
Electrical circuits$200–$250
Drainage problems$100–$150
Refrigerant leak$400–$1500
Frozen condenser coils$1,283–$3,849
Fan or air blower issues$150–$200
Compressor replacement$600–$1,625

What are some signs that I should call an HVAC repair company?

Here are some of the most common AC issues you might face: It's best to contact a professional HVAC technician if you encounter any of these problems.

When is the best time to replace an AC unit?

To discover the best time for your installation, consider both Waukesha's temperatures and company demand. Generally, contractors are more in demand as the climate gets warmer and less busy during cool seasons. Therefore, it might be best to get the job done between late September and mid-November or March to mid-May.

Why should I hire an HVAC professional? Couldn't I repair my air conditioner myself?

You can most likely position a window AC unit without professional help. However, installing other air conditioners should almost always be done by an HVAC contractor who knows the complicated piping, wiring and tubing. We also advise opting for professional installation due to the danger of refrigerant spills.

How many years until I should replace my AC unit?

You won’t need to change air conditioner for 10–15 years with proper maintenance. As your AC grows older, its mechanical parts might become hard to find. You'll probably need to consider new AC installation if your company can't install a broken part.

To share feedback or ask a question about this article, send a note to our Reviews Team at reviewsteam@thisoldhousereviews.com.