Gas furnace replacement cost in Philadelphia, PA
Installed, 80,000 BTU, 95%+ efficiency
A typical furnace (80,000 BTU, 95%+ efficiency) costs about $4,900 installed in the Philadelphia area, 1% above the national figure, because HVAC technicians here earn a median $31 an hour against $29 nationally.
Prices by size in Philadelphia
| Size | Low | Typical | High | National typical |
|---|---|---|---|---|
| 60,000 BTU, 80% efficiency | $3,700 | $4,150 | $5,400 | $4,100 |
| 60,000 BTU, 95%+ efficiency | $4,400 | $4,800 | $5,750 | $4,750 |
| 80,000 BTU, 80% efficiency | $3,800 | $4,100 | $5,000 | $4,050 |
| 80,000 BTU, 95%+ efficiency | $4,500 | $4,900 | $5,950 | $4,850 |
| 100,000 BTU, 80% efficiency | $3,950 | $4,300 | $5,450 | $4,250 |
| 100,000 BTU, 95%+ efficiency | $4,600 | $5,000 | $6,000 | $4,950 |
Local labor: what HVAC technicians earn here
| Hourly wage | Philadelphia metro | United States |
|---|---|---|
| 25th percentile | $25 | $23 |
| Median | $31 | $29 |
| 75th percentile | $38 | $37 |
The Philadelphia market
Philadelphia's Department of Licenses and Inspections requires a plumbing permit for replacement work, and water heater permits may be issued immediately when a contractor applies. Replacing appliances in a one- or two-family home qualifies for a mechanical EZ permit. Any owner or authorized agent may apply, but a licensed master plumber must oversee plumbing and a licensed contractor must perform mechanical work. A Certificate of Approval follows the required inspections, and boilers are regulated by the Pennsylvania Department of Labor and Industry. Fees run $31 for a water heater in a one- or two-family home, $69 per separately submitted mechanical appliance, a $100 filing fee credited toward the permit and small City and State surcharges. Rowhouse stock means mixed systems: EIA found 19% of Pennsylvania homes heat with a boiler and 6% heat water with oil. Camden, Wilmington and the suburban counties have separate permit offices.
Philadelphia's energy compliance process asks the field inspector to see an HVAC Equipment Certificate, so make sure your installer provides it. Furnaces are the main heat in 56% of Pennsylvania homes. In a rowhouse, ask where a high-efficiency furnace's plastic vent would exit, since side walls are often shared. Ask whether the old chimney will still serve the water heater properly once the furnace stops using it.
Permits in Philadelphia
| Permit for this job | Yes (mechanical permit; EZ permit for replacing appliances in 1-2 family dwellings) (source) |
|---|---|
| Fee | Water heater: $31 (1-2 family) or $37; mechanical appliance submitted separately $69 each in 1-2 family ($158 otherwise); direct-vent/flue-connected heating unit $69 in 1-2 family; $100 non-refundable filing fee credited to permit fee; surcharges $3 City + $4.50 State per permit. |
| Who can pull it | Owner or authorized agent may apply, but work must be done/overseen by a licensed master plumber (plumbing) or licensed contractor (mechanical) |
| Inspection | Yes |
Rebates in Pennsylvania
HEAR: announced, not open yet. HOMES: announced, not open yet. Source: PA DEP Energy Programs Office, checked October 13, 2026.
What these programs cover, and other states
Other systems in Philadelphia
- Gas tank water heater
- Gas tankless water heater
- Central air conditioner
- Heat pump (ducted, outdoor unit + air handler)
Gas furnace cost in other metros
Sources
- City of Philadelphia: Get a plumbing permit
- City of Philadelphia: Get a mechanical permit
- Philadelphia L&I Water Heater Replacement Certification Form
- Pennsylvania DEP: Inflation Reduction Act home energy rebates
- EIA, 2020 RECS: Highlights for space heating in U.S. homes by state
- EIA, 2020 RECS: Highlights for water heating in U.S. homes by state
- EIA, 2020 RECS: Highlights for air conditioning in U.S. homes by state
- BLS OEWS May 2025, Philadelphia-Camden-Wilmington, PA-NJ-DE-MD (49-9021 HVAC mechanics and installers)
- DOE Consumer Furnaces Final Rule TSD (Sep 2023), Table 8.2.12 (2022$); labor share from App. 8D (11.97 person-hours, $705 of $2,527)