Furnace Repair in Boston
Get fast, fair pricing from licensed local pros. Typical Boston cost: $95 – $300 installed.
- Flame sensor
- $95 – $300
- Igniter
- $175 – $550
- Blower motor
- $475 – $1.8k
- Control board
- $375 – $950
What's going on with your HVAC system?
- Licensed& fully insured
- Same-dayservice available
- Upfrontpricing, no pressure
- Localpros, nationwide
Furnace repair cost by part.
Typical Boston repair pricing including parts and labor. A diagnostic fee usually applies and is often credited toward the work.
Furnace repair in Boston typically costs between $95 and $4,200 depending on the part, with a diagnostic fee of $90–$250. Many homes were built around 1945, so older systems often need repairs like flame sensor or heat exchanger replacement. Boston's cold climate (Zone 5) means a properly sized furnace is critical for winter reliability. Massachusetts requires a mechanical permit for most repairs, and homeowners should verify their contractor pulls one. For those considering replacement, dual-fuel systems are a strong fit here, and the federal 25C tax credit can offset costs for qualifying high-efficiency equipment.
- Diagnostic / service callOften credited toward the repair$90 – $250
- Flame sensor or thermocoupleCommon no-heat cause on gas units$95 – $300
- Hot-surface igniterFurnace clicks but won’t light$175 – $550
- Blower motorNo airflow / weak airflow$475 – $1,800
- Heat exchangerCracked exchanger often means replace$1,800 – $4,200+
* 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 Boston
U.S. Census ACS- Households
- 266,378
- Homeowners
- 96,186
- 32% own
- Median home value
- $684,900
- Median income
- $89,212
- Median home built
- 1945
- Housing units
- 304,079
With a median home built in 1945, many Boston AC and furnace systems are at or past their 12–15 year lifespan — a common reason replacements spike here.
Ready to get your HVAC system serviced in Boston?
Speak with a licensed, insured HVAC technician near you. Upfront pricing, same-day availability, no obligation.
- Licensed & insured
- Same-day availability
- Upfront, no-pressure pricing
- Local pros near you
No obligation — talk through your options.
What’s different about Boston.
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 Boston
Given Massachusetts’s cold climate and mixed heating, dual-fuel (cold-climate heat pump + gas furnace) is the sensible default for most Boston homes. A pro can confirm the right size and system for your home with a load calculation.
Sources: Mass Save Air Source Heat Pumps · EIA Massachusetts State Energy Profile
What Boston code requires
Installing or replacing an HVAC system in Boston follows Massachusetts 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 (Climate Zone 5) sizing matters; Mass Save now requires cold-climate-rated heat pumps and excludes R-410A models from rebates as of Jan 1, 2026.
Sources: Mass Save Air Source Heat Pumps · EIA Massachusetts State Energy Profile
Not sure which rules and rebates apply to your home?
A licensed Boston pro will walk you through code, the right unit, and what you can claim back — in one quick call.
No obligation — talk through your options.
Money back in Boston
Massachusetts heating is mostly mixed, which shapes the money back:
- StateUp to $2,650/ton, capped at $8,500Mass Save Whole-Home 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.
Comfort back in three steps.
- 1
Tell us what’s wrong
Use the cost tool or call — takes 30 seconds. No cool air, no heat, or time for a new system.
- 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 Boston, explained.
Why Furnace Repair Costs Vary in Boston
Labor rates in Boston are higher than national averages due to the metro area's cost of living. Older homes (median built 1945) often have outdated ductwork or access challenges that increase repair time. The part itself drives the biggest cost difference: a flame sensor is $95–$300, while a heat exchanger runs $1,800–$4,200+. Permit fees and the need for load calculations in cold climates also add to the total.
Common Furnace Problems in Boston
Flame sensor failure
A dirty or faulty flame sensor is a frequent issue in older Boston homes, causing the furnace to cycle on and off. Repair costs $95–$300.
Igniter malfunction
The igniter can wear out after years of use, especially in cold winters. Replacement runs $175–$550.
Heat exchanger cracks
Cracked heat exchangers are serious safety hazards and common in aging furnaces. Repair or replacement costs $1,800–$4,200+.
What to Expect During a Furnace Repair in Boston
A technician will first run a diagnostic ($90–$250) to identify the issue. For most repairs, a mechanical permit is required by Massachusetts code. The job may take 1–4 hours depending on part accessibility. After repair, the technician should test the system for proper operation and safety, including checking for carbon monoxide leaks.
Furnace Repair FAQs — Boston
Yes, Massachusetts requires a mechanical permit for most furnace repairs, especially those involving gas lines or major components. Your contractor should pull the permit and include the fee in the estimate.
Furnace Repair near Boston
Get a furnace repair quote.
No heat? Compare licensed local pros fast.