Fort Atkinson, WI Heating and Air Conditioning Sales & Service

Armstrong Heating & Cooling is family owned and has been providing HVAC services to the Ft. Atkinson area and beyond since 1987. We specialize in providing quality heating and cooling systems at fair prices, and keeping our customers warm in the winter and cool in the summer. Comfort is the Key!

Get the Best Prices for the Best Brands

Furnaces and air conditioning units from Lennox can't be beat, and neither can our service. Call today and see how affordable dependable equipment and exceptional service can be.

We have many brands of new heating and cooling systems to choose from including:


Lennox provides the best in home heating and cooling systems with top of the line furnaces, air conditioners, and many other home HVAC system products


Aprilaire provides whole house air solutions with their air quality products which include zone control temperature systems, ventilation units, whole house air cleaners and more.

Crown Boiler

Crown Boiler provides the finest in customer service, the highest quality products and the shortest lead times, while remaining highly competitive in today's market.


Modine is a worldwide leader in the design and manufacturing of thermal management products.


Honeywell is a leading manufacturer of digital thermostats, manual thermostats, heaters, portable heaters, fans, portable fans, indoor fans and outdoor fans for more than 100 years.

Lennox repair

HVAC Repair Service you can Count On!

100% Guarantee

Whether your heat goes out in the middle of a winter night or your air conditioning stops at the hottest point of the hottest summer day, give us a call. Your questions and concerns are addressed in a friendly and courteous manner and all technicians are fully qualified, licensed, bonded and insured.

Servicing most major brands:

  • Air Conditioners - Central air conditioning, room air conditioners, and mini-splits.
  • Furnaces - Gas heater and oil furnace sales, repair, and installations.
  • Boilers - Oil to gas conversions, baseboard heating, and radiant floor heating.
  • Service & Maintenance - Spring and fall tune-ups, filter replacements, and maintenance

We have filters, thermostats, air cleaner media and more that are ALWAYS in stock. so give us a call to have us send you what you need for your heating or cooling equipment.

We have years of experience working with furnaces, air conditioners, and boilers. Call Armstrong Heating & Cooling today at 920-563-8825.

Page Summary: Armstrong Heating & Cooling offers Heating & Cooling Systems, air conditioning service and hvac repair in and around Fort Atkinson, WI, as well as Jefferson, Whitewater and Milton. A leading hvac company and heating and air contractor, they install air conditioning units, gas heaters and central heating and air in Lake Mills, Edgerton and Watertown. They also provide gas furnace and air conditioner repair as far as Janesville Wisconsin.

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