Top HVAC Companies in
Elkhorn, WI: 2026 List

Kettle Moraine Heating & Air Conditioning serves Elkhorn and southeastern Wisconsin with heating, cooling, repair, installation, and maintenance. Its Elkhorn page emphasizes NATE-certified specialists, customer-friendly office staff, Lennox and Mitsubishi products, and residential and commercial service. The company is a Lennox Premier Dealer and says its factory-trained, NATE-certified technicians size and install equipment to high standards. Its Elkhorn page also lists 24-hour emergency service and a 4.9 Google rating based on more than 4,700 reviews.

• When You Can Reach Them: 24-hour emergency service
• Who's Fixing Your HVAC: NATE-certified specialists and Lennox Premier Dealer technicians
• What It May Cost: Financing and maintenance agreements are promoted
• Local Service Fit: Southeastern Wisconsin provider with an Elkhorn service page
• Customer Confidence: 4.9 stars, 4,700+ reviews, NATE-certified specialists

Westenn Heating, Air Conditioning and Plumbing serves the Walworth County area with heating, cooling, ventilation, water heating, and plumbing services. The company describes itself as family-owned, veteran-operated, licensed, insured, and backed by more than three decades of hands-on experience. Westenn offers after-hours emergency service, same-day free estimates, live professionals during business hours, and price matching with a valid written estimate. That combination makes it a strong regional option for homeowners comparing broader home service providers in Walworth County.

• When You Can Reach Them: After-hours emergency service
• Who's Fixing Your HVAC: Licensed and insured technicians
• What It May Cost: Same-day free estimates and price matching with a valid written estimate
• Local Service Fit: Walworth County HVAC and plumbing provider
• Customer Confidence: 5.0 rating, 30+ years of experience, family and veteran-owned

2 Seasons Heating & Cooling serves Walworth County, Rock County, Kenosha County, Lake County, and McHenry County. The company lists 24/7 emergency service at no additional charge, competitive pricing, financing options, and licensed, bonded, and insured service. The company's review page shows a 4.5 overall rating across 99 ratings and reviews. Its service area includes Walworth, Lake Geneva, Delavan, Janesville, Beloit, and surrounding communities.

• When You Can Reach Them: 24/7 emergency service at no extra charge
• Who's Fixing Your HVAC: Licensed, bonded, and insured team
• What It May Cost: Competitive pricing and financing options
• Local Service Fit: Walworth County and Rock County service coverage
• Customer Confidence: 4.5 rating, 99 reviews, BBB Accredited

American Heating & Air Plus is based in Lake Geneva and serves Elkhorn, Delavan, Williams Bay, Fontana, Twin Lakes, Walworth, Darien, Pell Lake, Genoa City, and the greater Walworth County area. The company provides air conditioning installation, air conditioning repairs, heating installation, heating repair, maintenance plans, dryer vent cleaning, humidifiers, dehumidifiers, boiler service, and water heater installation. The company is an authorized Lennox dealer and offers financing through Wisetack. Its site positions the company around personalized service, competitive rates, and residential and commercial HVAC work.

• When You Can Reach Them: Emergency-only weekend service
• Who's Fixing Your HVAC: Lennox authorized dealer technicians
• What It May Cost: Financing through Wisetack and maintenance plans
• Local Service Fit: Lake Geneva provider serving Elkhorn and nearby Walworth County communities
• Customer Confidence: Customer reviews cite emergency AC service and courteous technicians

24 Hour Home Comfort Services is a regional HVAC and water heater provider serving southern Wisconsin. Its service-area content emphasizes heating, air conditioning, indoor air quality, maintenance, repair, replacement, and installation. The company lists 24/7 phone access and publishes a 4.9-star rating across more than 4,400 Google reviews. It is a broader regional provider rather than an Elkhorn-specific contractor, which makes it an adjacent comparison for homeowners researching larger service operations.

• When You Can Reach Them: 24/7 service access
• Who's Fixing Your HVAC: HVAC and water heater technicians
• What It May Cost: Maintenance, repair, replacement, and installation options
• Local Service Fit: Regional provider serving southern Wisconsin
• Customer Confidence: 4.9 stars, 4,400+ reviews, 24/7 availability

Harker Heating & Cooling is based in Madison and has served Dane County since 1949. The company offers heating, cooling, air quality, water heaters, and 24/7 emergency HVAC repair. Harker is a Carrier Factory Authorized Dealer and says its technicians are certified and trained to union standards. Its website lists a 4.9 rating based on 1,984 reviews, giving it one of the stronger public review profiles among adjacent regional providers.

• When You Can Reach Them: 24/7 emergency HVAC repair
• Who's Fixing Your HVAC: Certified technicians and Carrier Factory Authorized Dealer
• What It May Cost: Financing and seasonal specials
• Local Service Fit: Madison and Dane County provider, adjacent regional option
• Customer Confidence: 4.9 stars based on 1,984 reviews, Carrier dealer

R.A. Heating & Air Conditioning is based in Evansville, WI, and provides residential and commercial HVAC service. The company lists 24/7 emergency response, air conditioning service, heating systems, new construction HVAC, geothermal systems, air purification, and duct sealing. R.A. Heating & Air Conditioning states that it is a certified Armstrong Air and Carrier dealer. Its website also shows a 4.8 rating with 24 ratings and reviews.

• When You Can Reach Them: 24/7 emergency response
• Who's Fixing Your HVAC: Carrier and Armstrong Air dealer
• What It May Cost: Request-service process and emergency repair options
• Local Service Fit: Evansville-based provider serving nearby southern Wisconsin
• Customer Confidence: 4.8 rating, 24 reviews, Carrier dealer