Furnace Repair in Grafton
Get fast, fair pricing from licensed local pros. Typical Grafton cost: $70 – $225 installed.
- Flame sensor
- $70 – $225
- Igniter
- $125 – $400
- Blower motor
- $350 – $1.4k
- Control board
- $275 – $700
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Furnace repair cost by part.
Typical Grafton repair pricing including parts and labor. A diagnostic fee usually applies and is often credited toward the work.
Furnace repair in Grafton, Wisconsin, typically costs between $65 and $175 for a diagnostic visit, plus parts and labor. With a median home built in 1985, many furnaces are nearing or past their expected lifespan, making repairs common. Wisconsin requires a mechanical permit and a licensed DSPS contractor for any furnace work, including like-for-like replacements. Most homes use gas heating, and the cold climate means equipment must be sized for severe winter design temperatures. For homeowners considering replacement, a gas furnace paired with a central AC is a recommended system, and federal 25C tax credits may apply for high-efficiency units.
- Diagnostic / service callOften credited toward the repair$65 – $175
- Flame sensor or thermocoupleCommon no-heat cause on gas units$70 – $225
- Hot-surface igniterFurnace clicks but won’t light$125 – $400
- Blower motorNo airflow / weak airflow$350 – $1,350
- Heat exchangerCracked exchanger often means replace$1,350 – $3,100+
* A cracked heat exchanger is a safety issue — on an older furnace, replacement is usually the call.
Pricing reviewed · Local data from U.S. Census ACS
HVAC systems in Grafton
U.S. Census ACS- Households
- 4,864
- Homeowners
- 3,575
- 61% own
- Median home value
- $285,400
- Median income
- $83,500
- Median home built
- 1985
- Housing units
- 5,846
With a median home built in 1985, many Grafton AC and furnace systems are at or past their 12–15 year lifespan — a common reason replacements spike here.
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What’s different about Grafton.
Generic cost pages skip the things that actually decide your price and which system fits here — local code, climate, and the money you can claim back.
Recommended unit for Grafton
Given Wisconsin’s cold climate and gas heating, high-seer2 ac + gas furnace is the sensible default for most Grafton homes. The cooling season is short, so the budget is better spent on heating efficiency than on ultra-high SEER2. A pro can confirm the right size and system for your home with a load calculation.
Sources: Focus on Energy - Residential Heating & Cooling · Wisconsin DSPS HVAC Contractor / mechanical permitting · EIA Wisconsin Electricity Profile
What Grafton code requires
Installing or replacing an HVAC system in Grafton follows Wisconsin rules under the state mechanical code. Here’s what applies statewide:
- PermitRequired
Mechanical permit pulled by your licensed HVAC contractor; covers equipment, refrigerant, and the electrical disconnect.
- SEER2 minimum13.4 SEER2 (North)
Federal North-region minimum for new split-system AC. Higher tiers cut bills and unlock rebates.
- Load calculationRecommended
Sizing by load calc — not rule of thumb — prevents an oversized unit that short-cycles and never dehumidifies.
- RefrigerantR-454B / R-32 (R-410A phased down 2025+)
- Good to know—
Cold-climate state: equipment must be sized for severe winter design temps; mechanical permit and a licensed Wisconsin HVAC contractor (DSPS) required even for like-for-like changeouts.
Sources: Focus on Energy - Residential Heating & Cooling · Wisconsin DSPS HVAC Contractor / mechanical permitting · EIA Wisconsin Electricity Profile
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Money back in Grafton
Wisconsin heating is mostly gas, which shapes the money back:
- State$400-$900 instant rebateFocus on Energy - Residential Air-Source Heat Pump Rebate →
State or utility program — verify eligibility before you buy.
- Federal30% of cost, up to $2,000Federal 25C tax credit — heat pump →
For a qualifying ENERGY STAR heat pump meeting the CEE efficiency tier. Claimed on your federal return.
- Federal30% of cost, up to $600Federal 25C tax credit — central AC →
For a qualifying high-efficiency central air conditioner.
The federal 25C tax credit (30%, up to $2,000 for a qualifying heat pump and up to $600 for a high-efficiency central AC) applies in every state, including Wisconsin.
Comfort back in three steps.
- 1
Tell us what’s wrong
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- 2
Get matched with a local pro
We connect you with a licensed, insured HVAC technician near you — often the same day.
- 3
Repair or replace, fast
Your pro confirms the price on-site and gets your comfort back. Most jobs done in a few hours.
Furnace Repair in Grafton, explained.
What affects furnace repair costs in Grafton
Repair costs vary by the part needed: flame sensor ($70–$225), igniter ($125–$400), blower motor ($350–$1,350), control board ($275–$700), or heat exchanger ($1,350–$3,100+). Labor rates reflect the local median income of $83,500 and the need for licensed technicians. Permit fees and the complexity of accessing older equipment in homes built around 1985 can also add to the total.
Common furnace problems in Grafton
Igniter failure
The igniter may crack or wear out, preventing the furnace from lighting. This is common in older units and costs $125–$400 to replace.
Blower motor issues
A failing blower motor can reduce airflow or cause noisy operation. Replacement runs $350–$1,350, often needed in homes with older furnaces.
Flame sensor malfunction
A dirty or faulty flame sensor can cause the furnace to cycle on and off. Cleaning or replacement costs $70–$225.
Furnace Repair FAQs — Grafton
Yes, Wisconsin requires a mechanical permit for any furnace repair or replacement, even like-for-like changeouts. A licensed DSPS contractor must handle the work.
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