HVAC Services in Delavan, WI

Full-Service Residential & Commercial Heating & Cooling in Delavan

H.J. Faust, Inc. has served residential and commercial customers across southeastern Wisconsin since 1978. With more than 20,000 clients in our install base and NATE-certified, factory-trained technicians on every call, we deliver HVAC services in Delavan that go well beyond swapping parts. We handle design-build projects, new construction, system upgrades, and sheet metal fabrication. These are end-to-end solutions under one roof, with the same team from first call to final inspection.

Ready to schedule HVAC service? Call us at (262) 418-0700 and let our team take it from there.

Air Conditioning Services in Delavan

We install Lennox systems and service major brands including Carrier, Daikin, Goodman, Trane, and Bryant. Whether your home needs a cooling system for new construction, a replacement for an aging unit, or a repair to get through a humid Wisconsin summer, our team can handle it.

AC Installation & Replacement

When it’s time for a new system, we size and install equipment matched to your home’s specific load, not the closest stock unit. AC installation and replacement covers new builds and aging equipment that no longer performs efficiently.

AC Repair

Warm air, weak airflow, or unusual cycling are signs something’s off. Before we recommend any solution, we start with a thorough inspection. We won’t suggest more than your system actually requires. AC repair is available around the clock, including 24/7 emergency service for urgent failures.

AC Maintenance

A spring tune-up catches small problems before peak cooling demand arrives. Our AC maintenance visits include coil cleaning, refrigerant checks, filter inspection, and full system testing across all makes and models.

Heating Services in Delavan

With average winter lows around 14°F and roughly 36 inches of annual snowfall, reliable heat in Delavan isn’t optional. We provide furnace installation, replacement, repair, and maintenance for gas furnaces, heat pumps, and boilers across all major brands.

Furnace Installation & Replacement

When your current system can’t keep up or simply reaches the end of its service life, we install a properly matched replacement. Furnace installation is available for both new construction and upgrade projects.

Heating Repair

Blower motor failures, ignition problems, thermostat malfunctions, and uneven heat output are among the most common issues we diagnose. Heating repair is backed by 24/7 emergency service so you can get help when temperatures drop overnight.

Heat Pumps & Fall Maintenance

We install and service heat pumps as an efficient alternative for homes with the right setup. We also recommend a fall furnace tune-up each year to prepare your heating system for the season ahead: cleaning, testing, and adjusting before the first hard freeze arrives.

Ductless Mini Split Installation & Service

Ductless mini split systems deliver zoned heating and cooling without extending existing ductwork. They are a practical fit for additions, sunrooms, basement conversions, and any space that doesn’t connect to a central system. We provide mini split installation, repair, and maintenance in Delavan. Repair coverage includes refrigerant leaks, sensor problems, drainage concerns, and electrical faults, while routine maintenance keeps the system running efficiently season after season.

Indoor Air Quality Solutions

Delavan’s climate runs humid year-round. Combine that with homes sealed tight against the cold for extended periods, and indoor air quality becomes a genuine comfort concern, not just a seasonal afterthought. We assess each customer’s needs and recommend IAQ options matched to their home, lifestyle, and comfort goals.

Our indoor air quality services include:

• Air Purifiers & Filtration — capture dust, allergens, and pet dander circulating through your system
• Humidifiers & Dehumidifiers — balance moisture levels to address dry winter air and summer humidity
• UV Air Sanitizers — target airborne bacteria, mold, and viruses within the HVAC system

Annual Maintenance Agreement

Preventive maintenance costs less than a mid-season emergency repair. Our Annual Maintenance Agreement covers both your furnace and air conditioner with one scheduled plan.

Agreement benefits include:

• Two seasonal check-ups: one spring visit for your AC, one fall visit for your heating system
• 30-point inspection at each visit
• Priority scheduling when service is needed
• No overtime charges for after-hours calls
• 10% discount on all parts and labor when repairs are required

One plan. Two tune-ups. Better efficiency, fewer surprises, and a direct line to our team when something comes up.

What Sets H.J. Faust, Inc. Apart in Delavan

Our technicians train through the state-approved Associated Builders and Contractors (ABC) Apprentice Program. This is a five-year curriculum that combines classroom instruction with hands-on field work under direct Senior Mechanic supervision. Add the minimum four professional development sessions each employee completes annually, and you get technicians who are current on the equipment they’re working on.

We hold BBB accreditation and have earned an Excellent rating across hundreds of Google reviews. Customers consistently cite our promptness, clear communication, and thorough work. Our inspection-first policy means no solution gets recommended before a complete system assessment. We install Lennox and service Carrier, Daikin, Goodman, Honeywell, Trane, Bryant, and more. We also recycle all eligible material on every job and dispose of the rest responsibly.

Beyond the work itself, we sponsor the Tall Tales Music Festival, the Burlington Turkey Trot benefiting Love, Inc., and the Transitional Living Center of Burlington, and we support local schools, athletic programs, and the Chamber of Commerce. We’ve been part of this community since 1978, and that’s not something we take lightly.

Schedule Heating & Cooling Service in Delavan Today

From a routine tune-up to an after-hours emergency, H.J. Faust, Inc. is ready to help. Our team is backed by more than four decades of service, and we’re available around the clock for emergencies and happy to find a time that works for you. Contact us online or call to schedule. We’ll take it from there.

Call (262) 418-0700 to schedule HVAC service in Delavan, WI.