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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 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

At Southport Plumbing, Heating & Cooling 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.

Air Conditioner
Furnace System
Outdoor Heat Pump
Garage Heat Pump
Furnace Install

+2

18 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

"Professional, polite and friendly, Steve offered the best deal in town on a a new furnace. He answered all my questions regarding the work before installation. The work was scheduled and completed on time and Steve stayed until he answered all remaining questions I had regarding my new furnace. I heartily recommend his HVAC services to other members!"
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 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

Over the Moon Heating, Cooling & Electrical exists for one reason — our customers. Our mission is to educate homeowners on the safety, comfort, and efficiency of their homes while delivering dependable electrical and HVAC solutions you can trust. We specialize in the repair, installation, and design of residential heating, air conditioning, and electrical systems. All work is performed safely and in compliance with state and local codes. We are fully insured and registered with the State of Wisconsin, and our licensed, background-checked technicians arrive prepared in fully stocked service vehicles to provide efficient, professional service. Our team is committed to clear communication, honest recommendations, and quality workmanship, helping homeowners make confident and informed decisions about their home systems.

Team & Job Photos
Team & Job Photos
Team & Job Photos
Team & Job Photos
Team & Job Photos

+51

Response time4 hrs
85 neighbors recently requested a quote
Recommended by54%of homeowners
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Heating and Air Conditioning FAQs, answered by experts

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, it’s important to turn off your AC sometimes to give it a break and prevent it from freezing up. If your AC runs all the time, your system’s parts will wear down quicker, which may mean that you need to replace it sooner. Plus, using your AC constantly uses more electricity and leads to higher energy bills.

The average life span of an HVAC system is 15 to 20 years. Even if your old air conditioner is still functional, it isn't as energy-efficient as a newer system (especially one with an Energy Star designation). Older HVAC systems aren't as efficient, and the 10-year mark is when you should start making full system replacement plans. Twenty years in, that plan should be well underway rather than waiting for the unit to die.

No. Your furnace does not run your air conditioner. Both units use the same system of ductwork to move conditioned air throughout your home, but you can have a furnace without having an air conditioner and vice versa. Furnaces are only for heating your home. You can buy a system that does both, however, like a split system or a heat pump (yes, heat pumps cool, too).

Yes, you can run an attic fan with the AC on. In fact, you don’t have a choice with a passive attic fan. Plus, when an attic fan draws out hot air from the attic, it helps regulate the temperature of your whole home, so your AC doesn't have to work as hard.

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.