Furnace Repair in Dunwoody
Get fast, fair pricing from licensed local pros. Typical Dunwoody cost: $90 – $275 installed.
- Flame sensor
- $90 – $275
- Igniter
- $175 – $500
- Blower motor
- $450 – $1.6k
- Control board
- $325 – $900
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Furnace repair cost by part.
Typical Dunwoody repair pricing including parts and labor. A diagnostic fee usually applies and is often credited toward the work.
In Dunwoody, GA, furnace repair costs typically range from $85–$225 for a diagnostic fee, plus parts and labor. With a median home age of 42 years, many homes have aging furnaces that may need repairs like flame sensor ($90–$275) or blower motor ($450–$1,650) replacements. Georgia requires a mechanical permit and licensed contractor for furnace work, and while Manual J/S load calculations are recommended, they are not strictly enforced for changeouts. Given the hot-humid climate and high cooling demand, a heat pump is often a well-suited system choice, and the federal 25C tax credit (30%, up to $2,000 for qualifying heat pumps) can offset upgrade costs.
- Diagnostic / service callOften credited toward the repair$85 – $225
- Flame sensor or thermocoupleCommon no-heat cause on gas units$90 – $275
- Hot-surface igniterFurnace clicks but won’t light$175 – $500
- Blower motorNo airflow / weak airflow$450 – $1,650
- Heat exchangerCracked exchanger often means replace$1,650 – $3,900+
* 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 Dunwoody
U.S. Census ACS- Households
- 20,583
- Homeowners
- 11,973
- 51% own
- Median home value
- $545,200
- Median income
- $106,710
- Median home built
- 1984
- Housing units
- 23,443
With a median home built in 1984, many Dunwoody 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 Dunwoody.
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 Dunwoody
Given Georgia’s hot-humid climate and mixed heating, high-seer2 heat pump is the sensible default for most Dunwoody 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: Georgia's Home Energy Rebates (GEFA) · Georgia Power Home Energy Improvement Program · EnergySage Georgia electricity rates
What Dunwoody code requires
Installing or replacing an HVAC system in Dunwoody follows Georgia 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—
Georgia follows the IECC-based state energy code; mechanical permits and licensed-contractor installs are required, and Manual J/S sizing is recommended practice but not strictly code-enforced on changeouts.
Sources: Georgia's Home Energy Rebates (GEFA) · Georgia Power Home Energy Improvement Program · EnergySage Georgia electricity rates
Not sure which rules and rebates apply to your home?
A licensed Dunwoody 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 Dunwoody
Georgia heating is mostly mixed, which shapes the money back:
- StateUp to $8,000 for a qualifying heat pump (income-qualified, <150% AMI)Georgia Home Energy Rebates - HEAR (Home Electrification and Appliance Rebates) →
State or utility program — verify eligibility before you buy.
- StateUp to $1,000 (up to 50% back on qualifying energy-saving upgrades)Georgia Power Home Energy Improvement Program (HEIP) →
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 Georgia.
Comfort back in three steps.
- 1
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- 2
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- 3
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Furnace Repair in Dunwoody, explained.
What Affects Furnace Repair Costs in Dunwoody
Repair costs vary by the part needed: flame sensors ($90–$275) are more affordable, while heat exchangers ($1,650–$3,900+) are major repairs. Labor rates reflect the local median income of $106,710, and permit fees add $50–$150. Older homes (median built 1984) may have harder-to-access systems or require code upgrades. System choice also matters—repairing a heat pump may differ from a gas furnace, and high-efficiency units may qualify for the 25C tax credit.
Common Furnace Problems in Dunwoody
Flame Sensor Failure
A dirty or faulty flame sensor causes the furnace to cycle on and off. Repair costs $90–$275.
Igniter Malfunction
A broken igniter prevents the furnace from lighting. Replacement runs $175–$500.
Blower Motor Issues
A failing blower motor reduces airflow. Replacement costs $450–$1,650.
What to Expect During a Furnace Repair in Dunwoody
A licensed technician will diagnose the issue (diagnostic fee $85–$225), often checking the flame sensor, igniter, and blower motor. If a permit is required, the contractor will pull it with the local building department. Repairs typically take 1–3 hours, and for older systems, the technician may recommend a heat pump upgrade eligible for the 25C tax credit.
Furnace Repair FAQs — Dunwoody
Yes, Georgia requires a mechanical permit for furnace repair or replacement. A licensed contractor typically handles the permit application and inspection.
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