Furnace Repair in Irmo
Get fast, fair pricing from licensed local pros. Typical Irmo cost: $70 – $225 installed.
- Flame sensor
- $70 – $225
- Igniter
- $125 – $400
- Blower motor
- $350 – $1.3k
- Control board
- $275 – $700
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Furnace repair cost by part.
Typical Irmo repair pricing including parts and labor. A diagnostic fee usually applies and is often credited toward the work.
Furnace repair costs in Irmo, SC, vary based on the age of your home and the specific part needing service. With a median home built in 1983, many furnaces are older and may require more frequent repairs. Typical diagnostic fees range from $65 to $175, and part replacement costs vary widely: flame sensor $70–$225, igniter $125–$400, blower motor $350–$1,300, control board $275–$700, and heat exchanger $1,300–$3,100+. South Carolina requires a mechanical permit for furnace work, which adds to the total cost. Given the hot-humid climate and high heat-pump adoption, many Irmo homes use heat pumps for heating, so furnace repair often involves electric strip backup or heat pump components. The federal 25C tax credit (30%, up to $2,000 for a qualifying heat pump) can offset upgrade costs.
- 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 – $1,300
- Heat exchangerCracked exchanger often means replace$1,300 – $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 Irmo
U.S. Census ACS- Households
- 4,674
- Homeowners
- 3,690
- 73% own
- Median home value
- $168,200
- Median income
- $77,656
- Median home built
- 1983
- Housing units
- 5,037
With a median home built in 1983, many Irmo 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 Irmo.
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 Irmo
Given South Carolina’s hot-humid climate and heat-pump heating, high-seer2 heat pump is the sensible default for most Irmo homes. With a long, hard cooling season here, stepping up the SEER2 tier pays back through lower summer bills. A pro can confirm the right size and system for your home with a load calculation.
Sources: Dominion Energy SC Heating and Cooling Rebates · Duke Energy HVAC Replacement Rebate · EIA South Carolina Electricity Profile
What Irmo code requires
Installing or replacing an HVAC system in Irmo follows South Carolina 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—
South Carolina enforces the IECC-based state energy code with a hot-humid focus; high heat-pump adoption means electric-strip backup sizing and humidity control matter more than cold-climate concerns.
Sources: Dominion Energy SC Heating and Cooling Rebates · Duke Energy HVAC Replacement Rebate · EIA South Carolina Electricity Profile
Not sure which rules and rebates apply to your home?
A licensed Irmo pro will walk you through code, the right unit, and what you can claim back — in one quick call.
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Money back in Irmo
South Carolina heating is mostly heat-pump, which shapes the money back:
- State$400-$1,000 (up to $650 for electric furnace to heat pump)Dominion Energy SC - Heating & Cooling Rebates (ENERGY STAR heat pump) →
State or utility program — verify eligibility before you buy.
- State$500-$1,000 (heat pump replacement; requires Home Energy Check)Duke Energy SC - HVAC Replacement / Home Energy Improvement rebates →
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 South Carolina.
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- 1
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- 2
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- 3
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Furnace Repair in Irmo, explained.
What Affects Furnace Repair Costs in Irmo?
Labor rates in Irmo reflect the local market, with median household income at $77,656. The age of your home (median 1983) means older systems may need more complex repairs. Part costs vary by brand and availability. Permit fees for mechanical work in South Carolina add $50–$150. Climate factors: in hot-humid Irmo, heat pumps are common, so repairs may involve both furnace and heat pump components. High-efficiency upgrades may qualify for the 25C tax credit, reducing net cost.
Common Furnace Repairs in Irmo
Flame Sensor Failure
A dirty or faulty flame sensor prevents ignition. Typical repair cost: $70–$225.
Igniter Problems
A cracked or worn igniter won't light the burner. Replacement runs $125–$400.
Blower Motor Malfunction
The blower motor moves heated air; failure leads to no heat. Repair cost: $350–$1,300.
Furnace Repair FAQs — Irmo
Yes, South Carolina requires a mechanical permit for most furnace repairs involving gas or electrical work. Your contractor should pull the permit, which adds $50–$150 to the job.
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