Heating System in Greater Madison
Need reliable heating system service today? We repair, replace, and maintain furnaces and boilers with clear recommendations and trusted workmanship. Serving the Greater Madison area, including Madison, Middleton, and Sun Prairie. We are family-owned since 1949 and carry a 4.9 rating from 1,887 reviews. Before the first cold snap, schedule a tune-up to stay comfortable. Call or book online for fast, friendly service.
What can you expect to pay?
How customers feel about the bill, in their words.
Post-job survey · verified customers
Trust Harker Heating & Cooling for expert HVAC installations, ensuring quality and professionalism every time.
Experience peace of mind with Harker Heating & Cooling's expert water heater installations.
Experience top-notch HVAC solutions with Harker Heating & Cooling.
Trust Harker Heating & Cooling for professional furnace installation and maintenance. Experience top-notch service and reliability.
Active coupons & redemption details.
View all offers$25 Off any Boiler Repair
All of the coupons on our website are non-stackable. They are only good at the time of service - and they cannot be applied retroactively. Coupons may not be used by employees, contractors, or affiliates unless explicitly stated. Coupons cannot be combined with other offers, discounts, promotions, or financing specials unless explicitly allowed. Coupons have no cash value and cannot be exchanged for cash, credit, or gift cards.
Get started with a complimentary service estimate.
SCHEDULE A FREE ESTIMATE
Need an expert opinion on what heater best suits your home’s needs? Contact us today for a free consultation.
Contact us today for a free consultation.
Contact us today to receive a complimentary quote estimate.
- complimentary quote estimate
REQUEST A QUOTE
Ready to begin? Contact our team for a complimentary quote estimate.
REQUEST A QUOTE
SCHEDULE A FREE ESTIMATE. Get started with a complimentary service estimate.
CALL NOW (608) 480-6157
Why Choose Us
Carrier Distinguished Dealer
Recognized dealer status for proven expertise and service.
Nest Elite Pro
Technicians trained to install and support Nest thermostats.
Focus on Energy partner
We help you access rebates for efficient upgrades.
Family-owned since 1949
Local roots, continuous service, community trust.
Top-rated service
4.9 rating from 1,887 reviews.
What Our Customers Say
speed
“Came same day and had our home warm again.”
speed
“We got our new furnace the next day.”
professionalism
“Excellent advice with no upsell. Very professional.”
Try a few safe checks first, then call our 24/7 team if heat still won’t come on. Set the thermostat to Heat and at least 68 F, and replace its batteries. Make sure the furnace switch is on and the breaker isn’t tripped. Replace a clogged air filter and open supply/return vents. If you use gas, confirm the gas valve is open. Clear snow or debris from outdoor intake and exhaust pipes. Harker services furnaces, boilers, heat pumps, and ductless systems in Madison.
Updated: 2025-12-26 00:00:00
Need help in Madison, WI? Call (608) 313-5510 or book online.
"Punctual, professional services." — Dawn D.
Heating system replacement costs vary by home and system type. A Harker technician will inspect your Madison-area home and provide a written estimate before work begins. Costs depend on equipment (furnace, boiler, heat pump, ductless, geothermal), size and efficiency, any duct or vent changes, and add-ons like smart thermostats. You may qualify for up to $500 in tax credits, or up to $150 for qualifying furnaces/boilers. Complimentary replacement estimates are available.
Quick steps:
- Schedule an in-home assessment.
- Review options and tax-credit eligibility.
- Approve the written quote.
Updated: 2025-12-26
Need help in Cross Plains, WI? Call (608) 313-5510 or book online. "Love this company." — Alan W.
Heating repair costs depend on the problem and the type of system. We provide complimentary service estimates for heating services before work begins. Exact pricing is set after an in‑home diagnostic, and your technician will confirm parts and labor on site. 24/7 emergency service is available and may affect after‑hours pricing. We service furnaces, boilers, heat pumps, geothermal, ductless, gas fireplaces, radiant heat, and garage heaters. Ask about $25 off any boiler repair or maintenance. Service available in Madison, Sun Prairie, and nearby.
Updated: 2025-12-26
Need help in Madison, WI? Call (608) 313-5510 or book online. "Our furnace went down and they came the same day. Love this company." — Alan W.
Heating system installation costs vary by home and equipment, so there isn’t one set price. Harker provides a complimentary in‑home estimate for accurate pricing before any work begins. Costs depend on system type (furnace, boiler, heat pump, ductless, geothermal), efficiency level, and controls. Existing ductwork, gas or electrical needs, and add‑ons like smart thermostats can change the total. We install and service systems across Madison and Sun Prairie, with 24/7 availability.
Updated: 2025-12-26 00:00:00
Need help in Cross Plains, WI? Call (608) 313-5510 or book online.
"Our furnace went down and they came the same day." — Alan W.
Furnace replacement cost varies by home and system. We provide a complimentary estimate after an on-site assessment by a Harker technician. Pricing is driven by furnace efficiency, fuel type (gas, oil, or propane), required venting or duct changes, and control upgrades.
Quick factors that affect price:
- Home size and ductwork condition
- Efficiency rating and brand selection
- Thermostat/controls integration
Serving Madison and nearby cities like Sun Prairie and Middleton.
Updated: 2025-12-26
Need help in Madison, WI? Call (608) 313-5510 or book online.
"Love this company." — Alan W.
Still have questions?
Have questions or need service? Contact our team today to discuss your needs, request a quote, or schedule an appointment.
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