How much does a furnace replacement cost in Oak Lawn, IL?
US national rangeUpdated Prices checked October 20261 source
A furnace replacement costs $2,823 to $6,896 nationally, typical $4,814. We have no documented price index for Oak Lawn for this job, so this is the US national range from HomeAdvisor, checked October 2026.
US national range, not adjusted for this city
- Low
- $2,823
- Typical
- $4,814
- High
- $6,896
Furnace replacement cost in Oak Lawn, IL
We have no documented price index for Oak Lawn for this job, so the table shows the US national range.
| Estimate | Low | Typical | High | Basis | Checked |
|---|---|---|---|---|---|
| US national range | $2,823 | $4,814 | $6,896 | Per system, installed; typical range of customer-reported jobs (HomeAdvisor) | October 2026 |
Furnace replacement cost by type or size
US national figures in USD, as published by each source.
| Type or size | Price (USD) | Source |
|---|---|---|
| Electric furnace | $2,000 to $7,000 | HomeAdvisor |
| Gas furnace | $3,800 to $10,000 | HomeAdvisor |
| Oil furnace | $6,750 to $10,000 | HomeAdvisor |
What drives the cost of a furnace replacement
Fuel type
Electric furnaces cost least to install; oil costs the most.
Efficiency rating
High-AFUE furnaces cost more up front.
Home size
Furnaces are sized at roughly 30 to 60 BTUs per square foot.
Climate
Colder regions need more capacity.
Removal of the old unit
Removal and disposal typically add $150 to $330.
Permits and what's included in Oak Lawn
Permit note
Furnace replacement usually needs a mechanical permit, and gas work may need its own. Ask your local building department for the fee.
Rules are set locally; confirm with Oak Lawn’s building department.
What’s usually included
- The new furnace
- Connection to existing ducts, venting and fuel supply
- Startup and testing
Scopes vary. Get the scope in writing on every quote.
Get furnace replacement quotes in Oak Lawn
Tell us about the job and we will pass it to local pros. Asking for quotes never changes how we rank anyone.
Two short steps: your name, then how to reach you. Free, and it never changes anyone’s rank.
Top-ranked HVAC contractors in Oak Lawn
The top 3 of 1,399 HVAC contractors we rank for Oak Lawn, IL, by CR Score. Paid placement never changes rank.
- #1Four Seasons Heating, Air Conditioning, Plumbing, & ElectricCR Score 664.7from 27,709 Google reviews
- #2Four Seasons Heating, Air Conditioning, Plumbing, & ElectricCR Score 644.7from 4,200 Google reviews
- #3Four Seasons Heating, Air Conditioning, Plumbing, & ElectricCR Score 644.8from 3,722 Google reviews
Furnace replacement cost in Oak Lawn: questions
How much does a furnace replacement cost in Oak Lawn, IL?
Do I need a permit for a furnace replacement in Oak Lawn?
What affects the cost of a furnace replacement?
How many HVAC contractors serve Oak Lawn?
What is usually included in the price?
Sources
Checked October 2026. Figures are estimates, not quotes.
- HomeAdvisor: Furnace replacement cost · page updated June 17, 2026 · checked October 2026Primary source. Used for: Low, typical and high; prices by fuel; drivers.
Related pages
More cost guides for Oak Lawn
- Roof replacement cost in Oak Lawn
- Roof repair cost in Oak Lawn
- Water heater replacement cost in Oak Lawn
- AC replacement cost in Oak Lawn
- Electrical panel upgrade cost in Oak Lawn
- Interior painting cost in Oak Lawn
- Exterior painting cost in Oak Lawn
- Kitchen remodel cost in Oak Lawn
- Bathroom remodel cost in Oak Lawn
- Hardwood floor installation cost in Oak Lawn
- Fence installation cost in Oak Lawn
- Deck building cost in Oak Lawn
- Siding replacement cost in Oak Lawn
- Window replacement cost in Oak Lawn
- Gutter installation cost in Oak Lawn
- Attic insulation cost in Oak Lawn
- Solar panel installation cost in Oak Lawn
- Garage door repair cost in Oak Lawn
- Foundation repair cost in Oak Lawn
- Tree removal cost in Oak Lawn
- Water damage restoration cost in Oak Lawn
- Concrete driveway cost in Oak Lawn
- Drywall repair cost in Oak Lawn