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Best heating and air conditioning pros near Lannon, WI

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TRUSTED BY LANNON, WI HOMEOWNERS

  • Average homeowner rating star icon4.7
    Average homeowner rating
  • Verified reviews icon811
    Verified heating and air conditioning services reviews

Top-Rated Heating and air conditioning pros in Lannon - Updated Nov 2026

Avatar for Droegkamp Furnace Co
Droegkamp Furnace Co
4.8(
575
)
Central A/C - InstallGas Furnace / Forced Air Heating System - InstallGas Furnace / Forced Air Heating System - Repair+27 more

Serving Lannon, WI and surrounding areas

Approved

In business since 1877

Free estimates

Emergency services offered

"Two visits and that's not our fault: Brian came, diagnosed the problem (capacitor if not blower died, and tune up). He was right: a new capacitor made it work well, until the old blower just refused to obey. Two days later we called and said that Brian was right: the blower needed replacement. Doing just the capacitor was our call to try to save money. Now our 20+ year old furnace runs like new. And I'll be calling them to replace our HVAC ('cuz it's 20+ years old) when it decides to give up the ghost."
Response time1 day
Response rate99%
15 neighbors recently requested a quote
Burant Heating And Air Conditioning
4.5(
15
)
Central A/C - InstallBoiler or Radiator Heating System - Install or ReplaceBoiler or Radiator Heating System - Install or Replace - For Business+47 more

Serving Lannon, WI and surrounding areas

Approved

In business since 1997

Free estimates

Emergency services offered

"Swimmingly. I interviewed quite a number of HVAC companies for this job by sending out an RPF (Request for Proposal), and Bob Mamayek was unquestionably the most thorough in his on-site evaluation. Installation crew was fantastic. This is a small shop, and it was a true pleasure to have a team of regular guys just getting the job done. I recommend them without reservation. I almost gave them a B for responsiveness because Bob doesn't do a lot of email, but I realized while typing that this would be completely unfair, for two reasons. A) Bob might not respond to email with email, but he did always respond with a phone call. Frankly, that is better on many counts. B) This ignores the amazing response to my RPF, which was both timely and thorough. So, really, this says more about my email-centric life than Mamayek's responsiveness."
Response time1 day
Response rate100%
4 neighbors recently requested a quote
Avatar for Burant Heating & Air Conditioning, LLC
Burant Heating & Air Conditioning, LLC
5.0(
42
)
Gas Furnace / Forced Air Heating System - InstallCentral A/C - InstallCentral A/C - Service or Repair+12 more

Serving Lannon, WI and surrounding areas

Approved

In business since 2000

Free estimates

Credit card accepted

"When our furnace went out the company we have been using for 12 years said they couldn't come out for 3 weeks. When I called Bob he returned my phone call the same day & proceeded to help us resolve the problem. We now have a new furnace & since it was older we decided to have them take care of the air conditioner at the same time. Mamayek Heating was very fair with their quotes & they don't try to sell you a monthly "maintenance fee" for service. Their company is definitely more family driven & you don't feel like just a number, the owner truly cares."
Response time9 hrs
Response rate99%
17 neighbors recently requested a quote
Avatar for Southport Plumbing, Heating & Cooling
Southport Plumbing, Heating & Cooling
5.0(
14
)
Central A/C - InstallGas Furnace / Forced Air Heating System - InstallDuctless Mini-split A/C - Install or Replace+7 more

Serving Lannon, WI and surrounding areas

Approved

In business since 2005

Free estimates

Warranties offered

"Very pleased with our new air conditioner installation. The salesman was very nice and explained everything to my satisfaction. The installers were efficient and knowledgeable as well. They showed up exactly on time and were finished earlier than I expected. Work areas were cleaned up, inside and out. Not even any metal shavings in the grass where the new ducting was cut. One of the nice gentlemen even explained the new thermostat they installed. I highly recommend Southport Home Services."
Air Conditioner
Furnace System
Outdoor Heat Pump
Garage Heat Pump
Furnace Install

+2

19 neighbors recently requested a quote
Avatar for Guardian Heating and Cooling, LLC
Guardian Heating and Cooling, LLC
4.7(
82
)
Gas Boiler or Radiator Heating System - InstallRadiant Floor Heating System - InstallGas Boiler or Radiator Heating System - Install - For Business+2 more

Serving Lannon, WI and surrounding areas

Approved

In business since 1998

Free estimates

Warranties offered

"The owner of Guardian Heating and Cooling, LLC (Steve Peterson) and one of his sons (Adam) did an AWESOME job installing a new, high-efficiency, gas-fired Laars combi-boiler at my residence! If the new unit continues to perform as well as it is presently, and Guardian service continues to be this excellent in the years ahead, I will be a happy camper and pat myself on the back for having been smart enough to hire them. :-) The unit they replaced was built by a highly-regarded manufacturer that had been installed by another highly regarded contractor by the previous owners of my home. As it turned out, the previous heating unit was a money pit and the previous contractors technical abilities left much to be desired. Each heating season, the previous boiler experienced one significant failure after another. The previous contractor kept changing parts without digging into **why** the parts were failing. They simply said I should accept this, since the unit was **old**. Unhappy with this response, I decided to cut my losses. To the rescue: Guardian Heating and Cooling! While not the least expensive contractor, Steve, and Son exceeded my expectations simply by meeting them! They arrived one time and did everything they said they were going to do. With unseasonably cold weather in October, I was initially a bit apprehensive at the prospect of having no heat for a few days while a replacement system was installed. I wondered if they would be able to complete this project in a timely manner, as they said they would. My worries were for naught. There were no surprises and no surprise expenses ... no nickle-and-diming when Guardian needed an extra part or fitting ... no drama. Guardian simply got the job done. And they did it beautifully. They took care to minimize the time I would be without water and without heat. After installation, they thoroughly tested the unit. The next day, they checked back to ensure that I was satisfied with its performance. They also cleaned up reasonably when they were done and were carefully not to damage my property, as they moved large, heavy pieces of equipment and tools around. In summary: a big Thumbs Up for Guardian heating and Cooling, LLC!"
Boilers
Boilers
Boilers
Garage infloor
Sun Room

+4

Response time7 hrs
13 neighbors recently requested a quote
Recommended by100%of homeowners
Nova Heating and Cooling
5.0(
8
)
Central A/C - InstallCentral A/C - Service or RepairDucts & Vents - Install or Replace+17 more

Serving Lannon, WI and surrounding areas

Approved

In business since 2022

Free estimates

Emergency services offered

"Marty listened to my needs, inspected the existing systems and provided a fair quote. I met the installation team as they took a close look at the project -- they knew their stuff. I wanted to hire Fast Air but my house is not a standard type of house and the brand of furnace I wanted didn't come in the right size for the house. Marty talked this through with me so I understood the situation. That helped me tremendously when I talked with other HVAC contractors. Fast Air is a professional outfit. They absolutely are at the top of my short list."
Response time40 mins
Recommended by83%of homeowners
Avatar for Countryside Heating and Cooling, LLC
Countryside Heating and Cooling, LLC
5.0(
7
)
Central A/C - InstallGas Furnace / Forced Air Heating System - InstallCentral A/C - Service or Repair+12 more

Serving Lannon, 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
)
Air Ducts & Vents - CleanCentral A/C - InstallDucts & Vents - Install or Replace+5 more

Serving Lannon, WI and surrounding areas

Approved

In business since 2009

Emergency services offered

Warranties offered

"Had them out to complete a duct cleaning for my home and they were very throughout and very friendly to all members of my family including working with having pets in the home. fairly priced for the high level of service provided"
Team & Job Photos
Team & Job Photos
Team & Job Photos
Team & Job Photos
Team & Job Photos

+51

Response time4 hrs
86 neighbors recently requested a quote
Recommended by54%of homeowners
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Showing 1-10 of 187
Heating and Air Conditioning FAQs, answered by experts

The cost to add Freon to an AC ranges from $100 to $350. It can increase up to $600 for large AC units requiring much more coolant. The cost also depends on how much refrigerant your unit needs. If only a small amount of Freon leaked out, your cost would be on the lower side. A complete replacement of all the required refrigerant can get expensive.

If both your furnace and AC unit are more than a decade old, it may be a good idea to replace both of them. However, your furnace can last up to three decades, and your air conditioner can typically last up to 15 years, so consulting with a pro before deciding to replace both of them is best. If it’s before that time limit for each, you can fix many problems with repairs or just replace one.

Yes. Your air supply should be balanced. The return and supply ducts need to maintain that balance, and this only occurs because an equal amount of air should be entering and leaving your HVAC system. Changes in pressure, extreme weather, and blocking vents with furniture or your stuff can make the air supply unbalanced and cause your home to get too cold or hot.

Yes, mini split systems cool equally as well as central air. While a central system circulates air throughout the entire home at the same temperature, a mini split system allows each room to be cooled or heated at different temperatures based on your own preferences. Hire a HVAC professional to determine which type of system is best for your home.

While most air conditioners can last between 10 and 20 years, they will only last this long (or longer) if properly taken care of. Routine maintenance and inspections help keep your AC unit running in tip-top shape but understanding what factors will decrease its lifespan will also help keep your unit running cool.

Some things that shorten your AC’s lifespan include:

  • Extreme outdoor conditions, like high humidity or extensive salt spray 

  • Improper installation

  • Extended run times, either by the unit being too small or the thermostat setting too low

  • Not performing required maintenance

The Lannon, 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.