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Find Air conditioning pros in Waukesha

Cardinal Heating & Air Conditioning
4.8(
165
)

Serving Waukesha, WI and surrounding areas

Approved

In business since 1984

Free estimates

Credit card accepted

Cardinal Heating, Cooling, Plumbing & Electric has provided full-service HVAC, plumbing, and electrical work to homes and businesses throughout the Madison area since 1984. Homeowners call us for furnace and air conditioner repair, water heater replacement, drain cleaning, and electrical panel upgrades, along with the everyday plumbing and electrical work every home needs. We take the time to listen to every customer and explain the options clearly, and our licensed technicians bring years of hands-on experience to routine maintenance, unexpected repairs, and full system installations alike. Call Cardinal today to schedule your free estimate.

Recommended by91%of homeowners
Avatar for Premium Heating & Cooling
Premium Heating & Cooling
4.8(
84
)

Serving Waukesha, WI and surrounding areas

Approved

In business since 2008

Free estimates

Emergency services offered

"Furnace in my home stopped working. Went through Home Advisor and had one company come over. They had stated that I needed a new furnace.Scott had called and came over within 1 hour, checked my furnace and found that it was plugged. He did the repairs and running great again. This is the second time he had done work for me a year ago on my air conditioning unit.He does great work, honest and his prices are fair. I will not rely on anyone else, except for Scott. He is my permanent repair man."
NEW 96% EFFICIENT FURNACE
95% EFFICIENT FURNACE
16 SEER AC
OLD, INEFFICIENT, UNSAFE FURNACE
Response time5 hrs
7 neighbors recently requested a quote
Recommended by97%of homeowners
Avatar for MIDWEST HEATING AND COOLING LLC
MIDWEST HEATING AND COOLING LLC
4.7(
42
)

Serving Waukesha, WI and surrounding areas

Approved

In business since 2018

Free estimates

Emergency services offered

"We called Midwest heating and cooling because our furnace was not turning on and heating and the day before when it was on the back of the unit was hot. They came out next day in a timely manner. Very polite and Friendly. Did a diagnostic look at and explained me what was wrong. Along with what he did to fix the issue. Our technician took lots of pictures as to how it looked when he started what his meters were saying with the numbers. Along with what it looked like when done. We got all of that emailed to us and is kept on file if they ever have to come out for something else so the same tech or another tech sees what was done the last time they came out. Our tech Ken explained what all the numbers ment on his picture so we understood things clearly. Told us about a membership program they offer to help out the customer and give them peace mind the next time you need something done. Ken was very knowledgeable and very kind. Would highly recommend."
Boiler Install
Furnace Install
Mini Split
Mini Split
Home Ducts

+12

77 neighbors recently requested a quote
Recommended by82%of homeowners
Avatar for Burant Heating & Air Conditioning, LLC
Burant Heating & Air Conditioning, LLC
5.0(
42
)

Serving Waukesha, WI and surrounding areas

Approved

In business since 2000

Free estimates

Credit card accepted

"Mamayek Heating was very proficient with their installation of whole house central air-conditioning in our 1896 year-old home which never had a unit in place. From start to finish, they accommodated our needs and schedule as well as leaving behind a nicely done project in working order. Thank you to the 3 Bobs for all their help!"
Response time9 hrs
Response rate99%
51 neighbors recently requested a quote
Avatar for ThermaTek Heating and Air
ThermaTek Heating and Air
4.7(
345
)

Serving Waukesha, WI and surrounding areas

Approved

Super Service Award Winner

In business since 2018

Free estimates

Emergency services offered

"They responded within 1 minute of my request at 10pm, showed up the next morning, and installed a new air conditioner the same day. They were knowledgeable, professional, and did a great job!"
Ac install
Ac install
Ac install
Ac install
Ac install

+16

Response time3 hrs
Response rate91%
6 neighbors recently requested a quote
Avatar for JB Mechanical, LLC
JB Mechanical, LLC
4.9(
30
)

Serving Waukesha, WI and surrounding areas

Approved

In business since 2016

Free estimates

Emergency services offered

"I had a very dirty a/c unit, and didn't want to clean it myself. Was afraid of damaging the fins, plus it hadn't been serviced for years prior to us purchasing this duplex. The gentleman arrived exactly on time. He cleaned it very well, then check the furnace filter which was also very dirty, replaced it. Also checked the R22 level, had to put a lb in and then checked the output of cold air. It was perfect. Told me the approximate age of unit and what to look for in the future. Highly recommended."
Response time2 days
17 neighbors recently requested a quote
Recommended by93%of homeowners
Burant Heating And Air Conditioning
4.5(
15
)

Serving Waukesha, WI and surrounding areas

Approved

In business since 1997

Free estimates

Emergency services offered

"The install took longer than expected because they are a small company, and were extra busy with other jobs that week. However, when it was all said and done, I am quite pleased with the results. The AC works great in the summer, and my winter heating bills are almost 50% less than they used to be. Would I do it again? Yes. Would I wait this long to do it? No Way! One of the main reasons Bob's company is special is that he does a good portion of the work himself. It's not contracted out to people you don't know. You meet Bob, and he does the work. Bob was also very accommodating about where to place vents, how to route ducts, etc... He also did a good job at educating me on how the system works along the way. Thanks Bob!"
Response time1 day
Response rate100%
6 neighbors recently requested a quote
Avatar for One Hour Heating & Air Conditioning
One Hour Heating & Air Conditioning
4.8(
16
)

Serving Waukesha, WI and surrounding areas

Approved

Super Service Award Winner

In business since 2002

Free estimates

Emergency services offered

"One Hour Heating & Conditioning was prompt arriving at the scheduled appointment time. My wife and I also appreciated receiving a message that the techs were on their way. Our techs Kyle and Jacob were friendly, professional, and knowledgeable. Arguably one of the most thorough annual checkups I have had since being in the home for 7 years and using some other services in the past. While both furnaces are well beyond their expected life, neither tried to "oversell" me and offered objective pros/cons to some repair options vs. replacement. I would highly recommend One Hour Heating & Conditioning."
Company Van
In Progress
HVAC Unit
Humidifier
Response time6 hrs
Response rate99%
94 neighbors recently requested a quote
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FAQs for air conditioning projects in Waukesha, WI

Most professional HVAC technicians require two to three hours to complete an expansion valve replacement. The timeframe depends on your unit's accessibility and whether additional repairs are needed. The process involves recovering refrigerant, removing the old valve, installing the new component, and recharging the system. Scheduling during less busy seasons may result in more convenient appointment times.

Operating your air conditioner with a malfunctioning expansion valve isn't advisable. Continuing to run the system could potentially damage other components, particularly your compressor, which is significantly more expensive to replace. If you notice performance issues like inconsistent cooling or unusual noises, it's best to have your system inspected before continuing regular use.

Expansion valves don't have a standard replacement schedule, as their longevity depends on system usage, maintenance frequency, and environmental factors. Regular professional maintenance helps identify potential valve issues before they cause system failure. Having your HVAC system serviced annually allows technicians to monitor component condition and recommend preventative replacements when necessary.

Refrigerant leaks require prompt professional attention. If your expansion valve is leaking, you'll likely notice reduced cooling performance and possibly hear hissing sounds near the unit. Addressing leaks quickly prevents further system inefficiency and avoids the environmental impact of released refrigerant. Your HVAC technician will need to repair the leak and recharge the system with the proper refrigerant type and amount.

Because many AC issues present similar symptoms, professional diagnosis is recommended. Problems like inadequate cooling, inconsistent temperatures, or strange noises could indicate expansion valve issues, but might also stem from refrigerant leaks, electrical problems, or airflow restrictions. A qualified HVAC technician has the tools and expertise to accurately identify the root cause and recommend appropriate repairs.

The Waukesha, WI homeowners’ guide to air conditioning services

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