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Find Central a/c service or repairers in Watertown

Avatar for KETTLE MORAINE HEATING & AIR CONDITIONING LLC
KETTLE MORAINE HEATING & AIR CONDITIONING LLC
4.8(
228
)

Serving Watertown, WI and surrounding areas

Approved

In business since 1987

Free estimates

Emergency services offered

"The yearly service agreement I have for inspection of my furnace and central air was a great investment. Jim a furnace tech arrived today on time per great communication with him and his office. The inspection was far greater than I expected for the cost. The tech was pleasant and very good at his job. Being a retired field service technician I’m a good judge and was more than satisfied. I highly recommend Kettle moraine as over the years we have had them replace the furnace and also our central air. Every experience has been a pleasure and without one complaint."
Radiant In floor Heating
Furnace Replacement with Humidifier
Additional Photos
Additional Photos
Additional Photos

+8

Response time2 days
Response rate100%
11 neighbors recently requested a quote
Avatar for Cardinal Heating & Air Conditioning
Cardinal Heating & Air Conditioning
4.8(
164
)

Serving Watertown, WI and surrounding areas

Approved

In business since 1985

Free estimates

Emergency services offered

"We have used Cardinal for our HVAC and plumbing maintenance and replacement needs for more than several years now, and their technicians are professional AND personable -- we especially like Tyler (HVAC) and Brandon (Plumbing). Plus, Cardinal's occasional service specials and coupons make using them cost-efficient. My only suggestion is that a service window (say, two or four hours) is provided for scheduled non-emergency appointments, so that I'm able to make other appointments for the day."
168 neighbors recently requested a quote
Recommended by91%of homeowners
Avatar for JB Mechanical, LLC
JB Mechanical, LLC
4.9(
30
)

Serving Watertown, 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
Avatar for Southport Home Services
Southport Home Services
5.0(
11
)

Serving Watertown, WI and surrounding areas

Approved

In business since 2005

Free estimates

Emergency services offered

"Jacob from Southport came out for an on-site inspection of my furnace. He inspected the unit and ran a full set of tests for functionality. I received detailed answers to all my questions, and it was overall a great visit."
Boiler
Upstairs Furnace
Lineset/Electrical
Basement Furnace
Air Conditioner

+11

24 neighbors recently requested a quote
Avatar for Countryside Heating and Cooling, LLC
Countryside Heating and Cooling, LLC
5.0(
7
)

Serving Watertown, WI and surrounding areas

Approved

In business since 2024

Free estimates

Emergency services offered

"Shane was able to schedule a prompt appointment. He arrived on time and performed a thorough diagnostic on the furnace. He identified an issue I was unaware of and corrected the problem with the air conditioner using parts that were still under warranty. I will gladly use his services again."
Heating the Dream Barn
Heating the Dream Barn
Heating the Dream Barn
2024 Nextdoor Fave Award
2024 Nextdoor Fave Award

+2

Response time1 day
4 neighbors recently requested a quote
Avatar for Over the Moon Heating, Air & Electric
Over the Moon Heating, Air & Electric
3.6(
15
)

Serving Watertown, WI and surrounding areas

Approved

In business since 2009

Emergency services offered

Warranties offered

"I cannot say enough about our technician, Jordan, or the service of In Phase. We put our request into Angi and probably 1 minute later In Phase called. We have been wanting to upgrade our house to Ecobee since we purchased it two years ago. We thought we could do it ourselves, but our home had 3 zones, a two-wire boiler, and a newly added Central Air system. I had tried to hire other companies to do the job in the past, but very few companies were familiar with Ecobees. When In Phase called they were confident in the Ecobee system and were able to get us in the next day. Jordan showed up on time and was very personable and knowledgeable about the system. He had everything up and running in about 2.5 hours. This easily saved my husband and I a weekend of working on this, not to mention the fact that I didn't have to hear any cursing. (LOL!) BTW...we had already purchased everything, Jordan installed it and got it all set up for us. Many thanks!"
Team & Job Photos
Team & Job Photos
Team & Job Photos
Team & Job Photos
Team & Job Photos

+51

Response time4 hrs
94 neighbors recently requested a quote
Recommended by54%of homeowners
Avatar for North Alabama Technical Services
North Alabama Technical Services
4.9(
124
)

Serving Watertown, WI and surrounding areas

In business since 2010

Emergency services offered

Credit card accepted

"Excellent service, very fast response to my request for service, picked up laptop, diagnosed issues. Initially thought it was an OS update issue but the hard drive had failed along with other components (including 'CPU). Because other components were involved, a new solid state hard drive was put into a laptop with a working processor - same type CPU as in the failed unit. The laptop was repaired and returned in less than a week. This company picked up and dropped off the laptop (driving from Huntsville, AL (about 60-70 minutes)-- great service in this covid environment. I would recommend this company to my family./friends and will use again."
2014 Super Service Award Winner!
Additional Photos
Recommended by97%of homeowners
Avatar for Harker Heating & Cooling
Harker Heating & Cooling
4.6(
213
)

Serving Watertown, WI and surrounding areas

In business since 1949

Free estimates

Emergency services offered

"Harker Heating And Cooling is the best HVAC contractor we have ever worked with in 40 years. Their web site proudly says they are an “honest company with Midwestern values.” That is absolutely true. Their representative provided in-depth advice, answered our questions. and returned our messages. Their techs were knowledgeable, professional, careful, and friendly. They were on time, on call, and on budget. The service they provided for us over the years could not be better. So when the time finally came to replace our old furnace and A/C we selected them. Unfortunately, they encountered many unexpected problems installing our new equipment. Many more than they had anticipated for the job. But their representative pledged to address every one of them no matter how hard it was for them or how much of their time it took. And that is exactly what they did. No quibbling and no questions. They got the job done right. If you want an honest family contractor who stands behind what they do, and lives by those Midwestern values, then this is the company to hire. You will be glad you did. Doug and Margie King Mount Horeb, Wisconsin"
87 W. Beltline Hwy
Carrier Distinguished Dealer Logo
Star of Madison Award
Recommended by89%of homeowners
Avatar for ThermaTek Heating and Air LLC
ThermaTek Heating and Air LLC
4.8(
97
)

Serving Watertown, WI and surrounding areas

In business since 2018

Free estimates

Credit card accepted

"Prompt response, polite service with explanations of the repair process throughout the repairs. No gouging on the bill either. Positive experience overall."
Furnaces
Furnaces
Furnace Installs
Furnace Installs
Furnace Installs

+16

Response time40 mins
Response rate100%
Recommended by94%of homeowners
Nordic Air Heating and Cooling
5.0(
9
)

Serving Watertown, WI and surrounding areas

We are a growing fast paced southeastern WI locally owned HVAC company that provides skilled and professional work with over 20 years experience in the Heating and Cooling industry we do it all from Furnace and AC tune ups to complete new home HVAC system designs! Not only is the quality of work guaranteed to exceed expectations but the cost of our work is also guaranteed to be the best in the industry with our unique pricing structure that under cuts the competition!\n

Recommended by100%of homeowners
Showing 1-10 of 34
FAQs for central a/c service or repair projects in Watertown, WI

Coils work to absorb heat into the refrigerant that flows through them, moving heat from one location to another. For air conditioning, the evaporator coil inside the air handler in your home absorbs heat. It then transfers the heat outside to the condenser coil, where it releases it. The opposite process happens for heat pumps. When the coils get dusty and dirty, it reduces how well these components work.

Skip regular cleanings, and dirt, debris, and mineral deposits will blanket your evaporator and condenser coils. When that happens, the coils can’t shed heat efficiently, so the system works harder and your energy bill climbs. Over time, overheating strains the compressor and can trigger a full breakdown—an avoidable repair that often costs far more than a simple annual cleaning.

AC coil cleaning is an investment that pays for itself in the benefits it provides. Dust‑caked coils force your AC to run longer, so you spend more on electricity and rack up extra wear. A quick professional cleaning restores efficiency, trims monthly bills, and eases strain on expensive parts. Over the long haul, that small yearly fee delays pricy repairs and stretches the unit’s lifespan, making coil cleaning one of the smartest HVAC tune‑ups you can schedule.

Watch for higher electric bills, rooms that stay warm no matter how low you set the thermostat, or an AC system that runs nonstop. Extra humidity and frost on the coils are also red flags. Catching these clues early lets you schedule a quick cleaning before the system overworks itself and triggers an expensive breakdown.

Your AC cleaning technician starts by shutting off the power to the unit and removing the faceplate. Compressed air and a vacuum hose blast away loose debris, followed by a coil-safe, no-rinse cleaner that dissolves stubborn grime. After the solution has soaked in, the professional wipes the fins, reassembles the housing, and restores power, leaving the system ready to cool at peak efficiency.

The Watertown, WI homeowners’ guide to central a/c service or repairs

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