HVAC Services in Rochester, WI

Full-Service Heating & Air Conditioning for Rochester Homes & Businesses

Since 1978, H.J. Faust, Inc. has delivered HVAC services in Rochester, WI and the surrounding Racine County area. More than four decades of work have built an install base of over 20,000 clients. We handle everything from new construction and design-build projects to system upgrades, sheet metal fabrication, and emergency repairs. Whether you’re a homeowner dealing with a failing furnace or a commercial property manager evaluating a full system replacement, our team brings the depth and credentials to do the job right.

Our technicians are available around the clock. When your heating or cooling fails, you won’t be waiting until business hours for help.

Ready to get control of your comfort? Call us at (262) 418-0700 to schedule service or request emergency HVAC assistance.

Air Conditioning Services in Rochester, WI

Wisconsin summers bring sustained heat and high humidity. These conditions push residential and light commercial cooling systems hard. We install Lennox air conditioning systems and service all major brands, including Carrier, Daikin, Goodman, Honeywell, Trane, and Bryant. Whatever system you have, our NATE-certified technicians can inspect it, diagnose performance issues, handle repairs, and recommend replacement when a unit reaches the end of its useful life.

We recommend a spring AC check-up every year. Catching refrigerant issues, worn components, or airflow restrictions before the hottest months arrive can help prevent breakdowns when you need cooling most and keep your system running more efficiently throughout the season.

Heating Services & Honest Repair-vs-Replace Guidance

When a furnace struggles through a Wisconsin winter, failing to reach set temperature, cycling on and off, or driving up utility bills, the question isn’t always whether to repair it. Systems more than 10 to 15 years old, or those with a pattern of recurring breakdowns, are worth evaluating for replacement. We start with a thorough inspection before recommending anything. You won’t hear us suggest a new system when your existing one can be fixed reliably at a reasonable cost.

Our NATE-certified technicians handle furnace repair, maintenance, and installation. We install Lennox heating systems and service all major brands. A fall check-up each year is our standard recommendation: before the first hard freeze, not after.

Annual Maintenance Agreement

Scheduled maintenance is how good HVAC systems stay good. Our Annual Maintenance Agreement covers both a furnace check-up and an air conditioner check-up on the twice-yearly schedule we recommend: spring for cooling, fall for heating. The program goes beyond a basic tune-up with concrete inclusions that matter when something does go wrong.

Annual Maintenance Agreement inclusions:

• 30-point inspection on covered systems
• Priority scheduling for agreement holders
• No overtime charges for after-hours calls
• 10% discount on all parts and labor when repairs are needed
• Both furnace and air conditioner check-ups included

The no-overtime benefit alone makes the agreement worth considering for any household that wants more predictable costs when an emergency arises.

24/7 Emergency HVAC Service for the Rochester Area

A complete heating failure in January or a cooling system shutdown during a heat advisory isn’t a problem you can defer. Signs that warrant an emergency call include total system shutdown, burning odors, a triggered carbon monoxide alarm, or indoor temperatures dropping to unsafe levels. Our technicians are available around the clock to respond. We serve Rochester, Wisconsin and the surrounding region, and Annual Maintenance Agreement holders receive service at no overtime premium regardless of when they call.

Why Rochester-Area Customers Choose H.J. Faust, Inc.

Our technicians are fully licensed, insured, factory-trained, and NATE-certified. NATE certification means passing nationally recognized exams covering heating, cooling, ventilation, and refrigeration. It’s an objective standard, not a marketing claim. We’ve earned an Excellent rating from hundreds of Google reviews, with customers regularly citing our promptness, clear communication, and thorough work. We’re also BBB accredited.

What sets our workforce apart is how we build it. Every mechanic we employ trains through the state-approved Associated Builders & Contractors (ABC) Apprentice Program: a structured, five-year curriculum that combines classroom instruction with hands-on field work under direct Senior Mechanic supervision. Beyond apprentice training, every field and office employee completes a minimum of four training sessions per year to stay current on new equipment, technologies, and processes. That’s a deliberate investment in consistency, not a one-time credential.

We’re also a business that gives back to the communities we serve. Each year we participate in the Lennox Feel the Love program, nominating deserving households, including educators, first responders, healthcare workers, and families facing financial hardship, and donating and installing a new system at no cost to the recipient. We’re a privately held company with competitive pricing and flexible scheduling, and we intend to keep earning the trust that over 45 years of service has built.

Rochester HVAC Frequently Asked Questions

What HVAC Brands Do You Service?

We install Lennox heating and cooling systems. For service and repairs, we work on all major brands, including Carrier, Daikin, Goodman, Honeywell, Trane, and Bryant. If your system isn’t on that list, call us. Our technicians are trained across a wide range of equipment.

What Is the ABC Apprentice Program?

The Associated Builders & Contractors (ABC) Apprentice Program is a state-approved, five-year training curriculum for HVAC mechanics. It combines structured classroom instruction with hands-on field experience under direct Senior Mechanic supervision.

When Should I Call for Emergency Service vs. Schedule a Routine Visit?

Schedule a routine visit for annual maintenance, efficiency concerns, or minor performance issues like uneven temperatures or higher-than-usual energy bills. Call our emergency line when your system shuts down completely, when you detect a burning smell or unusual odors, if a carbon monoxide alarm triggers, or when indoor temperatures drop to levels that are unsafe for occupants. We’re available 24/7 for urgent calls.

Schedule HVAC Service in Rochester, WI

Whether you need a routine tune-up, a repair assessment, or a full system installation, H.J. Faust, Inc. is ready to help. More than 20,000 clients and over four decades of regional HVAC work back every call our team makes. We offer flexible scheduling to fit your calendar, and our technicians are available around the clock when the situation can’t wait. Reach out to discuss what your home or business needs.

Call (262) 418-0700 to schedule HVAC service in Rochester, WI or request emergency assistance. H.J. Faust, Inc. has been a trusted heating and cooling contractor in the region since 1978.