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Furnace Repair Cost Calculator

This free furnace repair cost calculator gives you a planning estimate for fixing a gas or electric furnace. Choose the problem, such as a failed igniter or flame sensor, blower motor, control board, inducer motor, gas valve or heating element, then set the age of the furnace and how easy it is to reach. You will see a cost breakdown with Budget, Standard and Premium project levels in about two minutes.

Free Planning EstimateDetailed Cost BreakdownBudget / Standard / Premium

Estimate My Furnace Repair Cost

OMNIESTIMATE · HVAC · FURNACE · 064 of 401

Furnace Repair Cost Calculator

Price an igniter, blower motor, control board, inducer, gas valve or heating element repair by category.

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This calculator provides a planning estimate only. It is not a quote, bid or guaranteed price. Actual contractor pricing may vary based on location, diagnosis, parts availability, labor market and project complexity. A cracked heat exchanger usually means replacement, which is priced separately. Gas appliance work must be done by a licensed professional.

Calculator Introduction

Answer a few quick questions about your furnace repair and the calculator estimates your cost in four steps: Location and Repair Type, Repair Details, Access and Options and Labor Market and Timing. A ZIP code is required so we can match your request with local licensed professionals. It does not change the price. Only the questions that matter for your project are shown, and every setting has a sensible default, so you can get a first estimate in under a minute and then fine-tune.

Igniter

Lights the burners.

Flame sensor

Confirms the flame is present.

Control board

The furnace brain. It runs the start-up sequence, such as the draft motor, the igniter, the gas valve and the blower, and it shuts the furnace down if a safety check fails.

Result Explanation

Your result shows an Estimated Project Budget, which is the Standard estimate, together with a typical range from Budget to Premium.

Budget

Budget assumes basic parts and a lean service fee.

Standard

Standard assumes standard parts and a licensed technician at typical rates. This is the best number to plan around.

Premium

Premium assumes premium parts, thorough testing and premium service.

Below the headline number you will see a category breakdown, a line-item table for all three project levels, and a tip based on your selections. Results update automatically if you change an input after calculating.

How to read your results

Use Standard as your main planning number, and the Budget-to-Premium range to see how much your choices can swing the result.

Request Quotes From Licensed HVAC Technicians

Use the estimate above as your planning budget, then request quotes from licensed HVAC technicians using the form below the calculator. A photo of the furnace data label and a short description of the symptoms or error codes help technicians quote more accurately.

Lead form — to be connected

Universal lead form placeholder: Fluent Form ID: unverified placeholder. Visible fields when connected: full_name, email, phone, zip_code, project_notes, contact_consent. Hidden fields filled by this calculator: calculator_name (Furnace Repair Cost Calculator), service (HVAC), sub_service (Furnace Repair), estimate_low (Budget total), estimate_standard (Standard total), estimate_premium (Premium total), material_cost (Standard replacement parts and tune-up supplies), labor_cost (Standard service call and technician labor), removal_cost (blank), disposal_cost (blank), permit_cost (blank), equipment_cost (Standard gas leak detector and pressure test for gas valve and diagnostic only, otherwise blank), additional_cost (urgent / after-hours premium, blank when not selected), calculator_inputs (JSON summary of every selection), page_url (URL of the page).

The form stays hidden until a calculation succeeds. After the calculation, it appears and the hidden fields are filled in automatically.

Cost Breakdown Explanation

The breakdown only shows categories that apply to your project, so you will not see empty $0 rows.

Materials

The replacement part, such as an igniter, flame sensor, blower motor, control board, inducer motor, gas valve or heating element, tune-up supplies and any extras you select.

Labor

The service call and diagnostic fee plus technician time for the repair, testing and cleanup.

Equipment and Specialty

A gas leak detector and pressure test, only for a gas valve repair or a diagnostic.

Additional Costs

An urgent or after-hours service premium, when selected.

Permits are not normally needed for a furnace repair, so no permit line appears. A cracked heat exchanger usually means replacement and is not included.

How Much Does Furnace Repair Cost?

Furnace repair typically costs about $420 at the Standard level for an igniter or flame sensor and about $890 for a blower motor, with a Budget to Premium range of about $260 to $1,525 across the common repairs. A cracked heat exchanger is not a normal repair, and it usually means the furnace needs replacing.

This calculator uses the following planning figures for a furnace that is 10 to 20 years old, with easy access, one failed part where it applies and an average labor market:

Repair	Budget	Standard	Premium
Diagnostic and tune-up	$265	$420	$670
Igniter or flame sensor	$260	$420	$680
Blower motor	$525	$890	$1,525
Control board	$420	$715	$1,215
Inducer motor or pressure switch	$455	$755	$1,245
Gas valve	$450	$745	$1,230
Electric heating element	$320	$515	$835

Change any input and the numbers update, because the calculator prices the service call, parts and labor separately.

Images

No images were supplied for this page. Doc image suggestions, with alt text, are: Technician servicing a gas furnace — HVAC technician servicing a gas furnace with the panel removed; Furnace igniter and flame sensor — Hot surface igniter and flame sensor inside a furnace burner compartment; Furnace control board with error codes — Furnace control board with a flashing diagnostic light; Furnace blower motor — Blower motor and wheel inside a furnace cabinet; Technician testing for gas leaks — HVAC technician checking a gas valve connection with a leak detector; Optional cost-by-repair infographic — Furnace repair cost by repair type infographic.

How This Furnace Repair Calculator Works

Choose the problem

Pick from seven common furnace repairs and the age of the furnace.

Describe the repair

Tell us how many parts need replacing when it applies.

Describe access and options

Choose how easy the furnace is to reach, whether the part is under warranty and any extras you want while the furnace is open.

Set your labor market and timing

Choose the market that matches your area and whether the repair is urgent.

Three levels

The calculator then prices parts and labor at planning rates and shows three project levels. Your ZIP code is used to match your request with local HVAC technicians. It does not change the price.

What Affects Furnace Repair Costs?

The type of repair

A diagnostic and tune-up finds the problem, cleans the unit and tests it. An igniter or flame sensor fixes a furnace that starts and then shuts off. A blower motor fixes weak or no airflow. A control board fixes error codes or no response. An inducer motor or pressure switch fixes a draft motor that is not starting. A gas valve fixes burners that will not light, and an electric heating element fixes an electric furnace that gives no heat.

Number of parts

When more than one igniter, flame sensor, heating element or sequencer needs replacing, each adds parts and labor time. Replacing two ignition parts raises the Standard estimate from about $420 to about $600, and replacing three heating elements or sequencers raises the electric furnace estimate from about $515 to about $925.

The service call and diagnosis

Every repair starts with a service call and diagnosis. The calculator includes a service call and diagnostic fee in every estimate, and it is part of the labor cost. Ignition and board problems can look alike, so ask the technician to show you the failed part or the error code before replacing it.

Age of the furnace

Older furnaces take longer to work on, and parts are harder to find. A furnace over 20 years old raises the Standard igniter estimate from about $420 to about $440.

Access

A furnace in a basement, a utility room or a closet is the easy case. A crawl space takes more time, and an attic takes the most because of the ladder and the tight working room. An attic furnace raises the Standard igniter estimate from about $420 to about $480.

Warranty

If the replacement part is covered by a parts warranty, you still pay for the service call and the labor. A part under warranty lowers the Standard igniter estimate to about $305. Check your parts warranty first, because it often covers the part but not the labor.

Gas safety checks

A gas valve repair and a diagnostic include a gas leak detector and a pressure test, which the calculator prices as its own line. Gas valve work must be done by a licensed technician. If you ever smell gas, leave the home and call your gas utility or 911 from outside.

Optional extras

Cleaning the burners and the flame sensor, replacing the run capacitor, cleaning the condensate trap on a condensing furnace, a carbon monoxide alarm, a surge protector and a new air filter each add parts and labor. Cleaning the burners and the flame sensor with an igniter repair raises the Standard estimate from about $420 to about $545, and replacing the capacitor with a blower motor raises it from about $890 to about $1,030. Extras appear only when they apply to the repair you chose.

Urgency

A furnace failure in winter is often an emergency. The calculator adds 15% to labor for work within about 48 hours and 40% for emergencies. An urgent call raises the Standard igniter estimate from about $420 to about $465, and an emergency raises it to about $540.

Budget vs Standard vs Premium Furnace Repair

The three project levels reflect real differences, not a simple multiplier:

Budget

Basic parts, a lean service fee and fewer labor hours.

Standard

Standard parts and a licensed technician at typical rates.

Premium

Premium parts, more thorough testing and premium service rates.

Use Standard as your main planning number, and the Budget-to-Premium range to see how much your choices can swing the result.

Repair vs Replace

A repair makes sense when the furnace is relatively new, the problem is a single part and the heat exchanger is sound. Replacement can make sense when the furnace is more than about 15 to 20 years old, when the heat exchanger is cracked or when repairs keep adding up. Ask your technician for the age, the condition of the heat exchanger and the cost of replacement, and use the furnace replacement calculator to compare the numbers.

Regional Pricing Differences

HVAC labor rates vary across the country. Rather than guess from your ZIP code, the calculator lets you choose a labor market, from lower-cost areas to the highest-cost metro areas, and applies it to the service call and labor. Parts are not adjusted. The highest-cost market raises the Standard igniter estimate from about $420 to about $540.

DIY vs Hiring a Licensed HVAC Technician

Replacing an air filter is an easy DIY task. Most other repairs involve gas, high voltage and combustion. A mistake can cause a gas leak, a fire or carbon monoxide exposure. A licensed technician can diagnose the real problem and test the combustion afterward.

Questions to Ask HVAC Technicians

What is the diagnosis, and can you show me the failed part or the error code?
Is the part covered by a manufacturer warranty, and does the warranty cover labor?
How old is the furnace, and would you repair or replace it?
Have you checked the heat exchanger and tested for carbon monoxide?
Will you test for gas leaks after the repair?
What is the labor warranty on the repair?

How to Avoid Unexpected Furnace Repair Costs

Change the air filter on a regular schedule, because a dirty filter causes many furnace problems.
Schedule a tune-up before the heating season, and not during a cold snap.
Put a carbon monoxide alarm near the bedrooms and test it.
Keep the model and serial numbers handy to check the warranty.
Ask for a written estimate before the technician starts the repair.

Ready for a Real Quote?

Quick Answers About Furnace Repair Costs

How much does furnace repair cost?

Furnace repair is commonly about $420 at the Standard level for an igniter or flame sensor, and about $890 for a blower motor. The Budget-to-Premium range across common repairs is about $260 to $1,525.

What is the most common furnace repair?

A failed igniter or flame sensor is one of the most common furnace repairs. The igniter lights the burners and the flame sensor confirms the flame, and a failure often makes the furnace start and then shut off.

What does a furnace control board do?

The control board is the furnace brain. It runs the start-up sequence, from the draft motor to the igniter, gas valve and blower, and shuts the furnace down if a safety check fails.

How much does a diagnostic and tune-up add?

A diagnostic and tune-up is about $420 at the Standard level. It includes the service call, testing, cleaning, a filter check and a gas leak test.

What is the biggest cost driver in furnace repair?

The type of part is the biggest driver, followed by the age of the furnace, the ease of access, and whether the part is under warranty.

Frequently Asked Questions

How much does furnace repair cost?

In this calculator, a Standard estimate is about $420 for an igniter or flame sensor, $515 for an electric heating element, $715 for a control board, $745 for a gas valve, $755 for an inducer motor and $890 for a blower motor. The Budget to Premium range across these repairs runs from roughly $260 to $1,525.

How much does it cost to fix a furnace that will not heat?

It depends on the cause. A failed igniter or flame sensor is about $420 at the Standard level, a control board is about $715 and a gas valve is about $745. A diagnostic and tune-up is about $420, and a technician finds the real cause before choosing the repair.

How much does it cost to replace a furnace igniter?

A Standard estimate for one igniter or flame sensor is about $420, with a Budget to Premium range of about $260 to $680. Replacing two parts at the same visit raises the Standard estimate to about $600. Cleaning the burners and the flame sensor at the same time adds about $125.

How much does it cost to replace a furnace blower motor?

A Standard estimate for a blower motor is about $890, with a Budget to Premium range of about $525 to $1,525. Replacing the run capacitor at the same time raises the Standard estimate to about $1,030. Many furnaces now use higher-cost variable-speed motors.

Is it worth repairing an old furnace?

It depends on the age, the repair cost and the condition of the heat exchanger. A furnace over 20 years old costs more to repair in this calculator, because older units take longer and parts are harder to find. If the repair is a large part of the cost of a new furnace, compare it with a replacement quote.

Does the furnace repair estimate include the service call?

Yes. Every estimate includes a service call and diagnostic fee, plus technician labor and parts. If the replacement part is covered by a parts warranty, the Standard igniter estimate falls from about $420 to about $305, because you still pay the service call and the labor.

Does the estimate include a cracked heat exchanger?

A cracked heat exchanger is not included. It usually means the furnace should be replaced, because it can leak carbon monoxide into the home. Use the furnace replacement calculator to price a new furnace, and have a licensed technician inspect the heat exchanger.

Can I repair my furnace myself?

Replacing an air filter is a safe task. Most other furnace repairs involve gas, high voltage and combustion, and a mistake can cause a gas leak or carbon monoxide exposure. Gas valve work in particular must be done by a licensed technician with a leak check and a pressure test.

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