Furnace Repair in Manassas
Get fast, fair pricing from licensed local pros. Typical Manassas cost: $80 – $250 installed.
- Flame sensor
- $80 – $250
- Igniter
- $150 – $450
- Blower motor
- $400 – $1.5k
- Control board
- $300 – $800
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Furnace repair cost by part.
Typical Manassas repair pricing including parts and labor. A diagnostic fee usually applies and is often credited toward the work.
Furnace repair costs in Manassas, Virginia, typically range from $80 for a flame sensor replacement to over $3,500 for a heat exchanger. With a median home built in 1985, many furnaces are nearing or past their expected lifespan, making repairs common. Local labor rates reflect the area's median household income of $110,559, and Virginia's Uniform Statewide Building Code requires mechanical permits for major repairs, adding $75–$200 for a diagnostic fee. The mixed-humid climate means heating is essential, but a heat pump may be a more efficient long-term choice.
- Diagnostic / service callOften credited toward the repair$75 – $200
- Flame sensor or thermocoupleCommon no-heat cause on gas units$80 – $250
- Hot-surface igniterFurnace clicks but won’t light$150 – $450
- Blower motorNo airflow / weak airflow$400 – $1,500
- Heat exchangerCracked exchanger often means replace$1,500 – $3,500+
* 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 Manassas
U.S. Census ACS- Households
- 17,048
- Homeowners
- 10,236
- 71% own
- Median home value
- $393,900
- Median income
- $110,559
- Median home built
- 1985
- Housing units
- 14,345
With a median home built in 1985, many Manassas 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 Manassas.
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 Manassas
Given Virginia’s mixed-humid climate and mixed heating, high-seer2 heat pump is the sensible default for most Manassas homes. A pro can confirm the right size and system for your home with a load calculation.
Sources: Virginia Energy - Home Energy Rebates FAQ · Dominion Energy Virginia - My Home savings · EIA Virginia Electricity Profile
What Manassas code requires
Installing or replacing an HVAC system in Manassas follows Virginia 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 minimum14.3 SEER2 (Southeast)
Federal Southeast-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—
Virginia uses the statewide Uniform Statewide Building Code (USBC/IECC); local mechanical permits and inspections are required for AC/heat pump/furnace changeouts, and Manual J/S sizing is recommended practice though not strictly enforced.
Sources: Virginia Energy - Home Energy Rebates FAQ · Dominion Energy Virginia - My Home savings · EIA Virginia Electricity Profile
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Money back in Manassas
Virginia heating is mostly mixed, which shapes the money back:
- StateUp to $8,000 for a qualifying heat pump (up to $14,000 total electrification)Virginia Home Energy Rebates (DOE HEAR, via Virginia Energy) →
State or utility program — verify eligibility before you buy.
- StateRebate for ENERGY STAR air-source/mini-split heat pumps (electrically heated homes; amount varies by efficiency)Dominion Energy Residential Home Retrofit 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.
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 Virginia.
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- 2
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Furnace Repair in Manassas, explained.
What Affects Furnace Repair Costs in Manassas
Costs vary by the part needing replacement: flame sensors ($80–$250) are more affordable than blower motors ($400–$1,500) or heat exchangers ($1,500–$3,500+). Labor rates in Manassas are influenced by the local cost of living, and permit fees for code-required work add to the total. The age of your furnace—often 40+ years—can make repairs more expensive if parts are hard to find. Choosing a heat pump instead of a furnace may qualify for the federal 25C tax credit (30% up to $2,000).
Common Furnace Problems in Manassas
Flame Sensor Failure
A dirty or faulty flame sensor causes the furnace to shut off after igniting. Cleaning or replacing it costs $80–$250.
Igniter Malfunction
A broken igniter prevents the furnace from starting. Replacement runs $150–$450.
Blower Motor Issues
A failing blower motor reduces airflow and efficiency. Repair or replacement costs $400–$1,500.
Furnace Repair FAQs — Manassas
Yes, Virginia's Uniform Statewide Building Code requires a mechanical permit for most furnace repairs involving gas or electrical work. Your contractor should pull the permit and schedule an inspection.
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