Heating System in the Greater Madison Area
Need reliable heating service now? We repair, replace, and maintain furnaces and boilers across the Greater Madison Area. Serving Madison, Middleton, and Sun Prairie with a 4.9 rating from 1,693 reviews. Family owned since 1949, we offer 24/7 emergency service and install AHRI‑certified equipment as a Carrier Distinguished Dealer and Nest Elite Pro. Get a straightforward estimate and friendly service today. Schedule online or call to book your visit.
Each image is a real worksite photo, reflecting the quality and dedication in every project.
Special Offers & Promotions
$25 Off any Boiler Repair
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Complimentary quote estimate for boiler repair.
- free estimate
Complimentary service estimate for heating systems (furnaces, boilers, heat pumps, ductless splits).
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Refer-A-Friend: Receive $100 for referring a friend who installs a furnace. Reward paid after installation.
- Reward mailed as check
Why Choose Us
What Our Customers Say
"He diagnosed the problem quickly and I am toasty warm today."
"Excellent job replacing our AC and furnace, and showed maintenance tips."
"Professional furnace service with clear explanations and great communication."
Answers to Common Questions
View All FAQsWhat Should I Do If My Heater Is Not Working in My House?
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.
[0] https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sCi9DQUlRQUNvZENodHljRjlvT2xCcWRrdE9UbVpJYUU1Nk5raE5ka3RJUlRKek1FRRAB!2m1!1s0x0:0xf55f104e093c221f!3m1!1s2@1:CAIQACodChtycF9oOlBqdktOTmZIaE56NkhNdktIRTJzMEE%7C0cOcDUA6GyI%7C[1] https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChdDSUhNMG9nS0VJQ0FnSURQcjduMm5BRRAB!2m1!1s0x0:0xf55f104e093c221f!3m1!1s2@1:CIHM0ogKEICAgIDPr7n2nAE%7CCgsIrKrMugYQkJjCbQ%7C?hl=en-GB[2] https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sCi9DQUlRQUNvZENodHljRjlvT21SbFVVZHZYMFV5Ym1SUmQzZFlRbEJRV1VWQk9YYxAB!2m1!1s0x0:0xf55f104e093c221f!3m1!1s2@1:CAIQACodChtycF9oOmRlUUdvX0UybmRRd3dYQlBQWUVBOXc%7C0d1daPnXEAs%7C[3] https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sCi9DQUlRQUNvZENodHljRjlvT2xSUFdWOHpMVVZNZWtkclVuVlRaWEpYV0Rka2FtYxAB!2m1!1s0x0:0xf55f104e093c221f!3m1!1s2@1:CAIQACodChtycF9oOlRPWV8zLUVMekdrUnVTZXJXWDdkamc%7C0cVCOsLjW9f%7C[4] https://www.harkerheating.com/contact/[5] https://www.harkerheating.com/support/financing/tax-credits/[6] https://www.harkerheating.com/our-services/heating/[7] https://www.harkerheating.com/shopHow much does heating system replacement typically cost for homeowners?
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.
[0] https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sCi9DQUlRQUNvZENodHljRjlvT2xCcWRrdE9UbVpJYUU1Nk5raE5ka3RJUlRKek1FRRAB!2m1!1s0x0:0xf55f104e093c221f!3m1!1s2@1:CAIQACodChtycF9oOlBqdktOTmZIaE56NkhNdktIRTJzMEE%7C0cOcDUA6GyI%7C[1] https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChdDSUhNMG9nS0VJQ0FnSURQcjduMm5BRRAB!2m1!1s0x0:0xf55f104e093c221f!3m1!1s2@1:CIHM0ogKEICAgIDPr7n2nAE%7CCgsIrKrMugYQkJjCbQ%7C?hl=en-GB[2] https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sCi9DQUlRQUNvZENodHljRjlvT21SbFVVZHZYMFV5Ym1SUmQzZFlRbEJRV1VWQk9YYxAB!2m1!1s0x0:0xf55f104e093c221f!3m1!1s2@1:CAIQACodChtycF9oOmRlUUdvX0UybmRRd3dYQlBQWUVBOXc%7C0d1daPnXEAs%7C[3] https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sCi9DQUlRQUNvZENodHljRjlvT2xSUFdWOHpMVVZNZWtkclVuVlRaWEpYV0Rka2FtYxAB!2m1!1s0x0:0xf55f104e093c221f!3m1!1s2@1:CAIQACodChtycF9oOlRPWV8zLUVMekdrUnVTZXJXWDdkamc%7C0cVCOsLjW9f%7C[4] https://www.harkerheating.com/contact/[5] https://www.harkerheating.com/support/financing/tax-credits/[6] https://www.harkerheating.com/our-services/heating/[7] https://www.harkerheating.com/shopHow much does heating system repair typically cost for homeowners?
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.
[0] https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sCi9DQUlRQUNvZENodHljRjlvT2xCcWRrdE9UbVpJYUU1Nk5raE5ka3RJUlRKek1FRRAB!2m1!1s0x0:0xf55f104e093c221f!3m1!1s2@1:CAIQACodChtycF9oOlBqdktOTmZIaE56NkhNdktIRTJzMEE%7C0cOcDUA6GyI%7C[1] https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChdDSUhNMG9nS0VJQ0FnSURQcjduMm5BRRAB!2m1!1s0x0:0xf55f104e093c221f!3m1!1s2@1:CIHM0ogKEICAgIDPr7n2nAE%7CCgsIrKrMugYQkJjCbQ%7C?hl=en-GB[2] https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sCi9DQUlRQUNvZENodHljRjlvT21SbFVVZHZYMFV5Ym1SUmQzZFlRbEJRV1VWQk9YYxAB!2m1!1s0x0:0xf55f104e093c221f!3m1!1s2@1:CAIQACodChtycF9oOmRlUUdvX0UybmRRd3dYQlBQWUVBOXc%7C0d1daPnXEAs%7C[3] https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sCi9DQUlRQUNvZENodHljRjlvT2xSUFdWOHpMVVZNZWtkclVuVlRaWEpYV0Rka2FtYxAB!2m1!1s0x0:0xf55f104e093c221f!3m1!1s2@1:CAIQACodChtycF9oOlRPWV8zLUVMekdrUnVTZXJXWDdkamc%7C0cVCOsLjW9f%7C[4] https://www.harkerheating.com/contact/[5] https://www.harkerheating.com/support/financing/tax-credits/[6] https://www.harkerheating.com/our-services/heating/[7] https://www.harkerheating.com/shopHow much does heating system installation typically cost for homeowners?
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.
[0] https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sCi9DQUlRQUNvZENodHljRjlvT2xCcWRrdE9UbVpJYUU1Nk5raE5ka3RJUlRKek1FRRAB!2m1!1s0x0:0xf55f104e093c221f!3m1!1s2@1:CAIQACodChtycF9oOlBqdktOTmZIaE56NkhNdktIRTJzMEE%7C0cOcDUA6GyI%7C[1] https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChdDSUhNMG9nS0VJQ0FnSURQcjduMm5BRRAB!2m1!1s0x0:0xf55f104e093c221f!3m1!1s2@1:CIHM0ogKEICAgIDPr7n2nAE%7CCgsIrKrMugYQkJjCbQ%7C?hl=en-GB[2] https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sCi9DQUlRQUNvZENodHljRjlvT21SbFVVZHZYMFV5Ym1SUmQzZFlRbEJRV1VWQk9YYxAB!2m1!1s0x0:0xf55f104e093c221f!3m1!1s2@1:CAIQACodChtycF9oOmRlUUdvX0UybmRRd3dYQlBQWUVBOXc%7C0d1daPnXEAs%7C[3] https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sCi9DQUlRQUNvZENodHljRjlvT2xSUFdWOHpMVVZNZWtkclVuVlRaWEpYV0Rka2FtYxAB!2m1!1s0x0:0xf55f104e093c221f!3m1!1s2@1:CAIQACodChtycF9oOlRPWV8zLUVMekdrUnVTZXJXWDdkamc%7C0cVCOsLjW9f%7C[4] https://www.harkerheating.com/contact/[5] https://www.harkerheating.com/support/financing/tax-credits/[6] https://www.harkerheating.com/our-services/heating/[7] https://www.harkerheating.com/shopHow much does furnace replacement typically cost for homeowners?
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.
[0] https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sCi9DQUlRQUNvZENodHljRjlvT2xCcWRrdE9UbVpJYUU1Nk5raE5ka3RJUlRKek1FRRAB!2m1!1s0x0:0xf55f104e093c221f!3m1!1s2@1:CAIQACodChtycF9oOlBqdktOTmZIaE56NkhNdktIRTJzMEE%7C0cOcDUA6GyI%7C[1] https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChdDSUhNMG9nS0VJQ0FnSURQcjduMm5BRRAB!2m1!1s0x0:0xf55f104e093c221f!3m1!1s2@1:CIHM0ogKEICAgIDPr7n2nAE%7CCgsIrKrMugYQkJjCbQ%7C?hl=en-GB[2] https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sCi9DQUlRQUNvZENodHljRjlvT21SbFVVZHZYMFV5Ym1SUmQzZFlRbEJRV1VWQk9YYxAB!2m1!1s0x0:0xf55f104e093c221f!3m1!1s2@1:CAIQACodChtycF9oOmRlUUdvX0UybmRRd3dYQlBQWUVBOXc%7C0d1daPnXEAs%7C[3] https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sCi9DQUlRQUNvZENodHljRjlvT2xSUFdWOHpMVVZNZWtkclVuVlRaWEpYV0Rka2FtYxAB!2m1!1s0x0:0xf55f104e093c221f!3m1!1s2@1:CAIQACodChtycF9oOlRPWV8zLUVMekdrUnVTZXJXWDdkamc%7C0cVCOsLjW9f%7C[4] https://www.harkerheating.com/contact/[5] https://www.harkerheating.com/support/financing/tax-credits/[6] https://www.harkerheating.com/our-services/heating/[7] https://www.harkerheating.com/shop
Helpful Tips & Maintenance Advice
View All BlogsHeating System Health Check: Protect Your Family from the Cold Madison Nights
Estimated Read Time: 4 minutes
As the cold Madison nights approach, ensuring your heating system is in peak condition becomes more than just a convenience—it’s a matter of family safety and comfort. With temperatures plummeting and winter storms on the horizon, taking a proactive approach with a ...
Cozy Homes: Optimize Your Heating System Before Winter Hits
Estimated Read Time: 5 minutes
As the days gradually shorten and the chill begins to hint at winter, ensuring your heating system is in top shape is essential for a cozy home. Homeowners in Madison, Sun Prairie, Middleton, and surrounding areas understand that a well-maintained HVAC system is not...
Where We Work
What areas do you serve for heating system?
We serve the Greater Madison Area, including Madison, Middleton, and Sun Prairie. See the full list of communities we visit below.