Furnace Replacement Cost Calculator
Estimate furnace replacement costs by heated area, furnace type, efficiency, duct or venting changes, access, and removal scope before calling HVAC contractors.
At a glance
Per project before contractor-specific scope and site conditions.
These inputs move the estimate before local labor, access, permits, and project conditions.
Ask contractors to separate included work, allowances, exclusions, and change-order rules.
Estimate your project cost
Furnace replacement pricing depends on equipment size, fuel type, AFUE efficiency, venting or duct changes, removal, permits, access, and local HVAC labor.
Cost drivers to review
- Heated area
- Furnace type
- Efficiency level
- Duct or venting work
- Equipment access
- Removal and add-ons
How this estimate should work
- Estimate furnace replacement scope from heated area, furnace type, efficiency level, duct or venting changes, access, and removal or add-on scope.
- Apply installed equipment and labor ranges for gas, electric, propane, oil, high-efficiency, two-stage, variable-speed, and modulating furnaces.
- Adjust the range for capacity, AFUE rating, flue or PVC venting, condensate drainage, duct repairs, gas or electrical updates, permits, disposal, and local HVAC labor.
- Show a planning range and help quote-ready homeowners compare replacement bids against repair recommendations and whole-system HVAC options.
Cost examples
A planning example for smaller or simpler furnace replacement work with easier access, fewer upgrades, and limited prep.
A planning example around the starter range when heated area, furnace type, and efficiency level are near the middle of the project.
A planning example for larger, upgraded, or harder-to-access furnace replacement work with more site prep or coordination.
Furnace replacement cost by furnace type
| Furnace type | Planning range |
|---|---|
| Standard natural gas furnace | $3,500 - $10,500 |
| High-efficiency gas furnace | $4,250 - $12,800 |
| Electric furnace | $2,850 - $8,600 |
| Propane or oil furnace | $4,600 - $13,900 |
Common questions
How much does furnace replacement cost?
A typical furnace replacement planning range is $3,500 - $10,500 per project. Final pricing depends on heated area, furnace type, efficiency level, duct or venting work, local labor rates, access, permits, and project conditions.
What changes a furnace replacement estimate the most?
The biggest changes usually come from project scope, especially heated area, furnace type, efficiency level, duct or venting work. Contractor availability, code requirements, site access, disposal needs, and regional cost pressure can also move the final quote.
How should I compare furnace replacement bids?
Ask each contractor to price the same scope, materials, timeline, cleanup, warranty, and permit assumptions. Then compare what is included, what is excluded, and how each quote handles surprises.
More project types
Browse related cost guides when this project overlaps with another trade or quote.
Compare contractor bids
Often included
- Labor and standard materials for furnace replacement.
- Basic site preparation, cleanup, and disposal assumptions.
- Standard contractor scheduling and project coordination.
May cost extra
- Changes related to heated area, furnace type, efficiency level, or duct or venting work.
- Permits, code upgrades, access issues, repairs, haul-off, or special-order materials.
- Scope changes discovered after the contractor inspects the site.
Confirm before hiring
- Whether the bid is fixed-price, allowance-based, or subject to site conditions.
- What is excluded, what could trigger a change order, and how surprises are priced.
- Warranty terms, payment schedule, start date, and cleanup responsibilities.
When to request quotes
Use the estimate after you know heated area, furnace type, efficiency level, and duct or venting work well enough to compare the same scope across contractors.
Good time to ask
- You can describe heated area, furnace type, efficiency level, and duct or venting work without guessing.
- You have photos, measurements, or notes that show the current furnace replacement scope.
- You are ready to ask at least two contractors for the same included work, exclusions, warranty, and change-order rules.
Wait until you know more
- The project scope may change after an inspection, repair decision, insurance review, or permit requirement.
- You are still deciding between furnace replacement options that would create different material, labor, or access needs.
Before you request quotes
Use these questions to describe your project clearly and compare contractor bids against the same assumptions.
Quote comparison worksheet- What is included in a furnace replacement quote, and what would be billed separately?
- How does heated area change labor, materials, disposal, or timeline?
- How does furnace type change labor, materials, disposal, or timeline?
- How does efficiency level change labor, materials, disposal, or timeline?
- How does duct or venting work change labor, materials, disposal, or timeline?
- Which assumptions should stay the same when comparing furnace replacement bids?