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HVAC Contractor in Stoughton, WI
Certified heating and air conditioning services in Stoughton, backed by years of hands-on experience and upfront, honest pricing.

BBB Accredited
Family Owned & Operated
NATE Certified
Rheem Pro Partner
HVAC Excellence CertifiedWhat We Offer
Our HVAC Services
Your home comfort depends on reliable climate systems designed for Dane County winters and summers. We offer local HVAC services backed by years of hands-on trade experience in the Stoughton area.

Heat Pumps
Wisconsin winters present unique challenges for electric heating systems. Modern heat pumps in Stoughton WI handle severe cold snaps by extracting outdoor heat even during freezing days. We size and install these systems to provide reliable, year-round climate control for your household. A properly configured heat pump switches to auxiliary heat when the temperature drops past its threshold, balancing energy use with indoor warmth. Our technicians evaluate your existing electrical panel to verify your home can support the system before installation begins. We focus on proper refrigerant charge and airflow calibration to maintain peak efficiency. You receive a system that lowers your overall reliance on fossil fuels while keeping your utility bills manageable during seasonal spikes. Contact us to schedule a free estimate for your heating upgrade.

Indoor Air Quality
Tight home construction keeps Wisconsin cold out, but it also traps allergens, dust, and moisture inside your living spaces. We install professional indoor air quality in Stoughton WI solutions to help your family breathe easier throughout the year. Our services include installing whole-home humidifiers, high-efficiency media air cleaners, and energy recovery ventilators. Dry winter air dries out wood trim and irritates respiratory tracts, while humid summer air promotes mold growth in basements. We assess your home's humidity levels and current filtration system to recommend targeted upgrades. Our technicians integrate these systems directly into your ductwork for silent, automatic operation. This keeps your air clean without bulky standalone appliances cluttering your rooms. We help you choose the right filtration level to capture fine particles without restricting system airflow.

Maintenance Plans
Regular maintenance prevents major mechanical failures when you need your system the most. Our seasonal maintenance plans in Stoughton WI provide peace of mind by keeping your heating and cooling systems running efficiently. We perform detailed safety checks, clean vital components, and identify small issues before they turn into costly repairs. Our technicians test safety switches, verify electrical connections, and inspect heat exchangers for dangerous cracks. Regular cleaning keeps your blower motors and coils clear of dust, which reduces energy consumption and extends equipment life. We design our service visits to fit your schedule, preparing your systems before the seasonal weather extremes arrive. Subscribers receive priority scheduling and detailed status reports after every visit. Protect your investment and keep your home safe with consistent professional care.

Thermostat Installation
A modern thermostat gives you precise control over your home's heating and cooling cycles. We handle professional thermostat installation in Stoughton WI to match your daily schedule and save energy. Our team helps you select the right model, whether you want a basic programmable unit or a smart thermostat with wireless remote access. We wire the system correctly to prevent communication errors between your thermostat and HVAC equipment. Improper wiring can damage system control boards or cause short-cycling, which wears out your compressor prematurely. We walk you through the setup process and explain how to program your heating schedule. Modern systems allow you to adjust temperatures from your smartphone, keeping your home efficient while you are away. Let us configure your controls to maximize your equipment performance.

AC Installation
Humid summer weather in Dane County makes a reliable air conditioner essential. Our team handles complete ac installation in Stoughton WI for homes and light commercial spaces. We perform accurate load calculations to determine the exact size system your property requires, avoiding short-cycling or high humidity. Over-sized units shut off before removing moisture from the air, while under-sized units run constantly and wear out quickly. We handle the full process including setting the outdoor condenser, running refrigerant lines, and installing the evaporator coil. Our team tests the system under load to verify proper operating pressures and electrical draw. We clean up our workspace completely and explain how to operate your new energy-efficient system. Contact us today to schedule your free on-site estimate.

AC Repair
When your cooling system fails on a hot summer afternoon, you need a rapid response. We provide dependable ac repair in Stoughton WI to restore cool air to your home quickly. Our certified technicians diagnose all major air conditioning brands and models, finding the root cause of the issue. We check for common problems like failed capacitors, leaking refrigerant lines, blocked coils, or bad fan motors. Our service trucks carry standard replacement parts so we can resolve most issues on our first visit. We explain what went wrong and provide upfront pricing before we begin any work. Our focus is on restoring your system safely and keeping your cooling costs manageable. Call us directly to get your air conditioner cooling your home again.

Boiler Service
Boiler systems require specialized technical knowledge to maintain their efficiency and safety. We offer expert boiler service in Stoughton WI to keep your hydronic heating system operating reliably through the winter. Our technicians understand the mechanics of expansion tanks, circulator pumps, and zone valves. We bleed air from your radiators, check for system leaks, and inspect gas burners to prevent carbon monoxide hazards. Mineral buildup inside boiler piping reduces heat transfer, making your system work harder to warm your home. We perform thorough flushing and descaling to restore optimal water flow and heating performance. Our team services both traditional cast-iron boilers and modern high-efficiency condensing units. Rely on our experienced technicians to keep your radiant heating system running cleanly all season long.

Ductwork
Your duct system distributes heated and cooled air to every room in your house. We provide professional service for ductwork in Stoughton WI, including new installations, modifications, and sealing. Poorly designed or leaking ducts force your HVAC system to work harder, raising your monthly energy bills. We seal joint leaks with durable mastic to prevent conditioned air from escaping into your attic or crawlspace. Our team balances air distribution to resolve hot or cold spots in specific rooms. We use high-quality materials to prevent duct noise and maintain optimal system static pressure. Whether you are remodeling your home or upgrading your existing heating system, we design custom duct layouts to maximize airflow. Our work helps keep your indoor temperatures even and your utility costs low.

Furnace Repair
A broken furnace during a Wisconsin freeze requires immediate attention to protect your family and plumbing. We offer rapid furnace repair in Stoughton WI to get your heating system back online safely. Our technicians diagnose faulty igniters, clogged burners, failed draft inducer motors, and worn blower assemblies. We inspect your heat exchanger for structural defects that could release toxic carbon monoxide into your home. Our team works on all natural gas, propane, and electric furnace models. We carry common replacement parts on our service vehicles to finish your repair on the same day whenever possible. We present our findings clearly and give you upfront pricing before we start any repairs. Get in touch with us for fast, honest service when your heating system stops working.

Heating Repair
Cold weather puts a heavy strain on your heating system, making mechanical breakdowns more likely. We provide complete heating repair in Stoughton WI for furnaces, boilers, and heat pumps. Our certified technicians quickly isolate the cause of system failures, whether it is a faulty thermostat or a dead compressor. We explain your options clearly so you can make an informed decision about your equipment. Our team follows strict industry safety standards during every repair, verifying gas pressure and proper venting. According to guidelines from the U.S. Department of Energy, maintaining clean filters and functional controls is essential for system efficiency. We make sure your entire system is running safely before we consider the job done. Call us today to restore comfort to your home.

Mini-split Systems
Ductless systems offer an efficient solution for properties that lack space for traditional ductwork. We specialize in installing mini-split systems in Stoughton WI to provide targeted climate control. These units are perfect for older homes, new room additions, or finished basements that remain uncomfortable. A ductless system uses an outdoor condenser connected to quiet indoor wall units, allowing you to control temperatures in individual zones. This zoning capability lets you turn off heating or cooling in unused rooms, reducing your utility bills. Our technicians position each indoor unit to optimize airflow and complement your room layout. We handle the entire installation process cleanly, requiring only a small wall penetration for the refrigerant lines. Contact us to schedule a free on-site estimate.
Why Choose Us
Why APT Heating and Cooling For HVAC

01
NATE Certified Staff
Our technicians hold North American Technician Excellence certifications. This means your heating and cooling systems are serviced by experts who pass rigorous industry tests, ensuring accurate diagnostics and reliable repairs on every single visit.
02
Fifteen Years of Experience
03
Honest, Upfront Pricing
04
We Pick Up the Phone
05
Family Owned and Operated
Common Questions