HVAC Services in Union Grove, WI

Full-Service HVAC for Union Grove Residents & Businesses

H.J. Faust, Inc. has been serving residential and commercial customers since 1978. With more than 20,000 clients across southeastern Wisconsin and an Excellent rating built on hundreds of Google reviews, we bring a level of verified experience that’s hard to match in Union Grove. Our NATE-certified, factory-trained technicians handle everything from emergency repairs to full design-build installations.

Our Union Grove HVAC services include:

• AC installation
• AC repair
• Heating services
• Mini split installation
• Furnace services
• Heat pump services
• Indoor air quality solutions

We’re BBB accredited and cover the full range of HVAC work: new construction, system upgrades, design-build projects, and sheet metal fabrication. Whether you need a fast repair in the middle of a January cold snap or a complete system replacement before summer, our team is ready for it.

Call us today at (262) 418-0700 to schedule service or get a free consultation on a new system installation in Union Grove.

Training & Community Investment That Sets Us Apart

Our mechanics are trained through the state-approved Associated Builders and Contractors (ABC) Apprentice Program, a structured five-year curriculum that combines classroom instruction with direct, hands-on field work under Senior Mechanic supervision. This isn’t on-the-job trial and error. It’s a formal, regulated pipeline that produces technicians with strong mechanical knowledge before they ever run a call independently.

Beyond the apprenticeship, every field and office employee attends a minimum of four training sessions per year. When new equipment, refrigerants, or control technologies reach the market, our team is already up to speed before those products arrive on a customer’s doorstep.

Our investment in the community goes beyond service calls. Each year, through our partnership with Lennox, we participate in the Feel the Love program: nominating a deserving household in need of a new heating or cooling system and donating and installing one at no cost. We also 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. On every job, we recycle all eligible materials and dispose of the rest responsibly.

HVAC Repair Services in Union Grove

When something goes wrong with your heating or cooling system, waiting isn’t an option. We offer 24/7 emergency service for heating and cooling calls, and our technicians service all major brands including Carrier, Daikin, Goodman, Honeywell, Trane, Bryant, and Lennox. Whatever equipment is in your home or building, we can work on it.

Every repair call starts with a thorough inspection. We won’t recommend more than your system actually requires, and we’ll give you an honest assessment of whether repair or replacement makes more sense before any work begins.

Common issues we diagnose and repair:

• AC repair: Refrigerant leaks, frozen evaporator coils, clogged condensate drains, faulty capacitors, malfunctioning thermostats
• Heat pump repair: Reversing valve failures, refrigerant problems, electrical malfunctions, airflow restrictions
• Furnace repair: Ignition failures, blower motor problems, cracked heat exchangers, clogged filters

Signs your system may need professional attention include unusual noises (rattling, buzzing, grinding, or whistling), unexplained increases in energy bills, inconsistent temperatures between rooms, frequent cycling on and off, and systems that are 10 to 15 years old or older. If you’re noticing any of these, don’t put off the call.

New HVAC System Installation & Replacement

We install Lennox systems and handle replacements across all major brands. Our scope includes new construction installations, full system upgrades, and complex design-build projects for both residential and commercial properties. We guide you through equipment selection from the start, matching system size and efficiency ratings to your actual space, then install to manufacturer specifications.

Proper sizing matters as much as brand quality. An undersized or oversized system can underperform regardless of its efficiency rating. For systems over 10 to 15 years old that are requiring frequent repairs or struggling to maintain consistent temperatures, replacement often delivers better long-term value than continued service. We can tell you which situation you’re in before recommending a path forward.

Annual Maintenance Agreement for Union Grove Homeowners

Wisconsin’s winters and summers put real strain on HVAC equipment. We recommend a spring check-up for your air conditioning system and a fall check-up for your heating system every year. Twice-yearly maintenance catches small problems before they become emergency calls, extends equipment life, and keeps systems running efficiently through peak demand months.

Our Annual Maintenance Agreement packages both visits into one plan with a defined set of benefits:

• Furnace check-up and air conditioner check-up
• 30-point inspection at each visit
• Priority scheduling during peak seasons
• No overtime charges on after-hours calls
• 10% discount on all parts and labor when repairs are needed

Priority scheduling through the agreement is particularly valuable during the coldest and hottest stretches of the year, when demand for HVAC services in Union Grove and surrounding Racine County spikes and technician availability tightens.

Indoor Air Quality Solutions

Heating and cooling are only part of what makes a home comfortable. In Wisconsin, where homes are sealed tight for months at a time during winter, indoor air quality deserves the same attention as temperature control. We offer air purifiers, humidifiers, and ventilation systems for residential and commercial spaces in Union Grove.

Humidity control is a particular concern in the Midwest. Insufficient humidity in winter causes dryness and discomfort; excess humidity in summer can encourage mold growth. Our team can assess your current setup and recommend the right IAQ equipment to complement your heating and cooling system.

Union Grove HVAC Frequently Asked Questions

How Do I Know Whether to Repair or Replace My HVAC System?

Our technicians inspect the system first and give you an honest assessment before recommending anything. In general, a system over 10 to 15 years old that requires frequent repairs or can’t maintain consistent temperatures is often a stronger candidate for replacement. Minor issues on a newer system are usually worth repairing. We can tell you which situation applies and won’t recommend more than your system actually requires.

Why Is My Furnace Blowing Cold Air?

The most common causes are thermostat settings (check that it’s set to heat, not fan-only), a dirty air filter restricting airflow, pilot light or ignition problems, or a safety shutoff triggered by the system overheating. If checking the thermostat and filter doesn’t resolve it, call us. Ignition and heat exchanger issues need professional diagnosis.

What Should I Check Before Calling for HVAC Repair?

Start with the basics: confirm your thermostat is set correctly, replace a dirty air filter, check that the circuit breakers for your HVAC equipment haven’t tripped, and make sure your vents are open and unobstructed. If none of those resolve the issue, the problem is likely internal and needs a technician.

How Can I Improve My System’s Energy Efficiency?

Routine maintenance is the single highest-impact step. Beyond that, seal any ductwork leaks, upgrade insulation in attic and wall cavities, install a programmable or smart thermostat, and replace aging equipment with a high-efficiency system. Our team can walk you through which of these applies to your current setup when we’re on-site.

Call (262) 418-0700 to request an estimate or to schedule your HVAC service in Union Grove today.