Home / HVAC Contractor in Madison, WI
When your furnace stops working in the middle of winter or your air conditioner breaks down during a heat wave, you need a heating and cooling contractor you can trust. Since 1949, we’ve been Madison’s go-to HVAC contractor for residential and commercial heating, cooling, and air quality solutions. With over 75 years of experience serving Dane County, we know the unique climate challenges Wisconsin homeowners face, and we’re prepared to handle any HVAC emergency with the professionalism and integrity you deserve.
We’re a locally owned HVAC contractor in Madison, WI, offering 24/7 emergency repair, professional installation, routine maintenance, and indoor air quality solutions for homes and businesses throughout the area.
Call (608) 480-6786. Harker’s air conditioning specialists are available 24/7 to assist you with your air conditioner installation needs.
Finding the right HVAC contractor can be stressful, especially when you’re dealing with a broken heating system or a malfunctioning air conditioner. We understand that comfort in your home matters, and you need someone who shows up on time, diagnoses the problem correctly, and offers honest solutions—not unnecessary upselling.
That’s what sets us apart as an HVAC contractor in Madison, WI. We’ve built our reputation over seven decades by treating every customer like family. Our Midwestern values guide everything we do: customer focus comes first, and we deliver solutions that make sense for your budget and your home’s needs.
Your furnace works overtime during Wisconsin winters. When it fails, you need a heating contractor in Madison who can get you warm again fast. We install high-efficiency furnaces, repair broken systems, and provide preventive maintenance to keep your equipment running reliably. Whether you need emergency furnace repair on a freezing night or you're planning a furnace installation for the upcoming heating season, our team has the expertise to handle it. We work with leading manufacturers and can recommend the right system for your home's size, efficiency needs, and budget.
Boiler systems require specialized knowledge. As an experienced HVAC contractor in Madison, WI, we install, maintain, and repair boilers for homes and commercial properties. We understand the importance of reliable hot water and radiant heat systems in Wisconsin's climate.
Heat pumps are increasingly popular for their efficiency in heating and cooling. We install, service, and repair heat pump systems, including ductless mini-split units, to help you maximize energy savings while maintaining comfort year-round.
Madison summers can get hot, and when your air conditioning fails, comfort is on the line. As a cooling contractor in Madison, we install new air conditioning systems, repair existing units, and provide seasonal maintenance to ensure peak performance when you need it most. Our technicians diagnose cooling problems quickly and offer multiple solutions. Whether your air conditioner needs a simple repair or a full replacement, we'll walk you through your options and the associated costs.
Regular air conditioning maintenance prevents breakdowns and extends equipment life. We offer comprehensive A/C tune-up services that clean components, check refrigerant levels, inspect electrical connections, and ensure your system operates at peak efficiency.
Beyond heating and cooling, indoor air quality plays a crucial role in home comfort. We offer air filtration systems, humidifiers, dehumidifiers, radon mitigation, air duct cleaning, and advanced solutions like GPS bipolar ionization to help you breathe easier in your Madison home.
As an HVAC contractor in Madison, WI, we’re committed to several core principles that guide our work:
We believe the customer is always the boss. Our technicians are trained to listen to your concerns, explain problems clearly, and recommend solutions that work within your budget. We won't oversell or pressure you into unnecessary repairs.
When we schedule an appointment, we show up on time. When we say we'll fix something, we get it fixed right. Our technicians are professional, respectful of your home, and committed to completing work efficiently without sacrificing quality.
HVAC problems can be confusing. We explain what's wrong, why it needs fixing, what options you have, and what each option costs. You'll understand your choices before making any decisions.
HVAC emergencies don't follow business hours. We're available 24/7 for emergency heating and cooling repairs in Madison because we know winter breakdowns can't wait.
Our Google reviews speak for themselves. With a 4.9-star rating from nearly 2,000 customer reviews, Madison residents consistently praise our technicians for their professionalism, reliability, and honest service. Customers appreciate that we:
Planning to replace your heating or cooling system? As an HVAC contractor in Madison, we help you choose the right equipment for your home. We work with Carrier and other trusted manufacturers, and we’re a Carrier Distinguished Dealer with access to high-efficiency options and energy-saving technology.
Our installation team ensures equipment is set up correctly for optimal performance and warranty coverage. We handle permitting and all the details so you don’t have to worry.
We understand that HVAC replacement can be a significant investment. We offer flexible financing options to make it easier to upgrade to efficient, reliable equipment. We also help you navigate federal energy tax credits that may apply to your new system.
We’re conveniently located at 87 Nob Hill Road in Madison and serve the greater Dane County area, including:
Know someone looking to install a furnace or air conditioner? Refer them to Harker Heating & Heating to receive $100 when we install their system!
We recommend professional maintenance at least once per year for both heating and cooling systems. Some newer systems may have manufacturer requirements. Regular tune-ups prevent breakdowns and keep equipment running efficiently.
Call us immediately at (608) 255-6902. Describe the issue, and we’ll dispatch a technician quickly. If it’s genuinely an emergency (extremely cold night, system won’t start), we prioritize emergency calls. In the meantime, ensure your family stays warm and check your thermostat settings.
That depends on your unit’s age, condition, and repair cost. If your AC is over 10-15 years old and the repair exceeds 50% of the replacement cost, replacement usually makes more sense. We’ll give you an honest assessment and let you decide.
Yes. We offer financing options to make HVAC replacement more affordable. We also help identify federal tax credits for energy-efficient equipment that may reduce your out-of-pocket costs.
Yes. While you can change your air filter monthly, professional maintenance includes thorough cleaning, electrical inspections, refrigerant checks, and component testing that require training and tools. This level of service prevents costly breakdowns and maintains efficiency.
Don’t let heating or cooling problems catch you off guard. Whether you need emergency repair, professional installation, routine maintenance, or indoor air quality solutions, we’re ready to help. With over 75 years of experience and a commitment to honest service, we’re the HVAC contractor Madison homeowners and businesses trust.
Call us today at (608) 255-6902 to schedule service, request an estimate, or ask questions about your heating and cooling system. Our team is available 24/7 for emergencies and during regular business hours for appointments. You can also book online at your convenience.
We serve Madison and the surrounding Dane County area with the integrity, expertise, and customer focus that define Harker Heating & Cooling.
We’ve been installing thermostats in Madison for more than 70 years. In that time, we’ve learned what our customers value: honesty, speed, and quality work. We don’t oversell or upsell. We install what you need, explain how it works, and move on. If you ever have questions later, we’re just a phone call away.
Our team is available 24/7 for emergencies, and we offer competitive pricing with flexible financing options. You shouldn’t have to choose between affordability and quality—you deserve both.
Your Madison, WI HVAC Contractor | 24/7 Service | (608) 255-6902 | 87 Nob Hill Road, Madison, WI 53713