HVAC Services in Twin Lakes, WI

Trusted Comfort Solutions Backed by Decades of Experience

Since 1978, H.J. Faust, Inc. has served residential and commercial customers across Kenosha County and southeastern Wisconsin, building an install base of more than 20,000 clients along the way. That kind of longevity doesn’t happen by accident. It reflects consistent, quality work by technicians who know what they’re doing and homeowners who keep calling us back.

Twin Lakes homeowners count on us for the full range of HVAC services: furnace repair and installation, air conditioning repair and replacement, heat pump services, ductless mini splits, indoor air quality solutions, and preventative maintenance. We’re BBB accredited and hold an Excellent rating based on hundreds of Google reviews, with customers consistently calling out our promptness, clear communication, and thorough work.

Ready to get your home’s comfort under control? Call (262) 418-0700 to schedule HVAC services in Twin Lakes, WI.

NATE-Certified Technicians Trained Through the ABC Apprentice Program

NATE (North American Technician Excellence) certification is the HVAC industry’s most recognized third-party credential, testing technicians on specific knowledge areas including heating, cooling, ventilation, and refrigeration. Every technician we send to your home is NATE-certified, fully licensed, and insured, so you know the person diagnosing your system has met a standard beyond just showing up with tools.

Behind that certification is a deeper training pipeline. We develop our mechanics through the state-approved Associated Builders and Contractors (ABC) Apprentice Program, a five-year curriculum that combines classroom instruction with hands-on field work under direct Senior Mechanic supervision. That structured foundation is how we keep diagnostic accuracy and installation quality consistently high. Beyond the apprenticeship, every field and office employee attends at least four training sessions per year to stay current on new equipment, technologies, and processes.

Comprehensive Heating & Cooling Services in Twin Lakes

Your home’s HVAC system is one of its most important investments. At H.J. Faust, Inc., we provide comprehensive heating and cooling services designed to protect that investment. We install Lennox systems and service all major brands, including Carrier, Daikin, Goodman, Honeywell, Trane, and Bryant, so you’re covered regardless of what’s already in your home. For new equipment installations, financing is available with approved credit.

Furnace Repair & Installation

Wisconsin winters are no joke. When temperatures dip below freezing, you need a furnace you can rely on. If your system isn’t producing enough heat, is making unusual noises, or has stopped working altogether, our HVAC technicians in Twin Lakes are ready to diagnose and address the issue promptly.

If your furnace is older or facing costly repairs, we can help you explore replacement options. We take the time to evaluate your home’s size, insulation levels, and heating needs before recommending a system that offers reliable warmth and improved energy efficiency. We start with a thorough inspection and don’t recommend more than your system actually requires.

Air Conditioning Repair & Replacement

When summer humidity settles over Twin Lakes, a dependable air conditioner makes all the difference. If your AC is blowing warm air, struggling to keep up, or causing your energy bills to climb, our team can pinpoint the problem and provide effective repairs.

For systems nearing the end of their lifespan, we offer professional air conditioning replacement services. Modern cooling systems are designed with energy efficiency in mind, and we can guide you through the selection process to help ensure your new system is properly sized and tailored to your home’s needs.

Heat Pump Services

Heat pumps are an increasingly popular solution for Wisconsin homeowners seeking year-round comfort and efficiency. These versatile systems provide both heating and cooling, making them a smart option for moderate seasons and supplemental comfort alongside a furnace.

Our team installs and services high-quality heat pumps designed to handle the variable conditions of southeastern Wisconsin. We can help determine whether a heat pump is the right fit for your home and install it according to manufacturer specifications.

Ductless Mini Split Services

If you have rooms that are difficult to heat or cool, such as additions, finished basements, or garages, ductless mini split systems offer flexible, energy-efficient comfort without requiring extensive ductwork modifications. These systems allow you to control temperatures in individual zones, which makes them a practical fit for the mix of year-round and seasonal properties in the Twin Lakes area.

H.J. Faust, Inc. provides professional installation and service for ductless systems, giving you greater control over your indoor environment.

Indoor Air Quality Solutions in Twin Lakes

Wisconsin’s cold winters mean homes stay sealed tight for months, reducing natural ventilation and concentrating indoor air pollutants. That makes indoor air quality solutions especially important here, particularly for year-round residents and seasonal lake properties that may sit unoccupied for extended periods.

We offer a range of IAQ products including air purifiers, humidifiers, dehumidifiers, UV air sanitizers, and advanced filtration systems. These help reduce airborne contaminants, maintain balanced humidity, and support a healthier indoor environment. We also provide radon mitigation services for homeowners concerned about this odorless, naturally occurring hazard.

Preventative HVAC Maintenance in Twin Lakes

HVAC systems tend to fail during peak demand, on the coldest and hottest days, when service backlogs are longest. Routine maintenance is a reliable way to help avoid being in that situation. We recommend one spring check-up for your air conditioning system and one fall check-up for your heating system to catch small issues before they become expensive ones.

Our Annual Maintenance Agreement takes that a step further. Agreement customers receive both a furnace check-up and an air conditioner check-up, priority scheduling so their calls move to the front of the queue, no overtime charges for after-hours service calls, a 30-point inspection, and a 10% discount on all parts and labor when repairs are needed. Equipment must be in good working order at registration; a pre-agreement inspection confirms eligibility, and coverage typically begins the same day payment is received.

Why Twin Lakes Homeowners Choose H.J. Faust, Inc.

Customers consistently mention our promptness, clear communication, and thorough work. Those aren’t claims we make about ourselves. They’re patterns that show up review after review.

A few things that set us apart beyond tenure:

• Honest repair-vs.-replace guidance: Every evaluation starts with a thorough inspection. We don’t recommend more than your system actually requires.
• 24/7 emergency service: Our technicians are available around the clock for heating and cooling emergencies. Maintenance agreement customers receive priority scheduling.
• BBB accreditation: Our accreditation reflects our accountability to customers and the communities we serve.
• Community involvement: Each year we participate in the Lennox Feel the Love program, donating and installing a new furnace for a deserving family in need. We also support local athletic programs, schools, and the Chamber of Commerce across the region.
• Responsible jobsite practices: We recycle all eligible material on every job and dispose of the rest responsibly.

Signs Your HVAC System Needs Professional Attention

If you notice any of the following issues, it may be time to call in a professional for heating and air conditioning services in Twin Lakes:

• Uneven temperatures throughout your home: Hot and cold spots can indicate airflow issues, duct problems, or an aging system struggling to keep up.
• Rising energy bills: A sudden spike in utility costs may signal that your system is operating inefficiently.
• Strange noises: Banging, rattling, or squealing sounds often point to mechanical issues that need prompt attention.
• Frequent cycling: If your system turns on and off more frequently than usual, it could be improperly sized or experiencing internal problems.
• Poor airflow: Weak airflow from vents may indicate clogged filters, duct blockages, or failing components.
• Inconsistent comfort: If your home never quite feels comfortable despite adjusting the thermostat, it’s worth having your system evaluated.

Addressing these warning signs early can help reduce the risk of more extensive damage and costly repairs down the line.

Twin Lakes HVAC Frequently Asked Questions

What Does the Annual Maintenance Agreement Include Beyond a Standard Tune-Up?

Our Annual Maintenance Agreement includes both a furnace check-up and an air conditioner check-up, a 30-point inspection, priority scheduling, no overtime charges for after-hours calls, and a 10% discount on parts and labor for any repairs needed. A one-time tune-up covers the inspection visit. The AMA adds scheduling priority and cost protections that apply all year.

What Should I Do If My HVAC System Stops Working?

Check your thermostat settings and circuit breakers first. If the issue persists, call H.J. Faust, Inc. right away. We offer 24/7 emergency HVAC service in Twin Lakes, and maintenance agreement customers move to the front of the queue.

How Long Does a Furnace or Air Conditioner Typically Last?

With proper maintenance, furnaces and air conditioners in Wisconsin typically last 15 to 20 years. Performance and efficiency tend to decline as systems age past that range, and repair costs can begin to outpace the value of keeping the equipment running.

Do You Service Brands Other Than Lennox?

Yes. We install Lennox systems and service all major brands, including Carrier, Daikin, Goodman, Honeywell, Trane, and Bryant. Whatever equipment is in your Twin Lakes home, our NATE-certified technicians can work on it.

Call (262) 418-0700 today to schedule your heating, cooling, or ventilation service in Twin Lakes.