Most U.S. homeowners pay between $750 and $3,500 to install or replace a gas furnace chimney liner; the cost depends on liner type, chimney height, and access. This article focuses on gas furnace chimney liner cost estimates, typical per-foot pricing, and the main drivers that change a quote.
| Item | Low | Average | High | Notes |
|---|---|---|---|---|
| Summary Install | $750 | $1,500-$2,200 | $3,500 | Assumptions: 2-4 story chimney, 4–6″ flue, standard stainless or aluminum liner. |
Typical Total Cost To Install a Gas Furnace Chimney Liner
Homeowners typically see total prices of $750-$3,500 depending on liner material and chimney height. For a single-family home with an accessible chimney and a common 4–6″ flue, expect $30-$85 per linear foot for materials and $225-$900 for labor components included in totals.
Assumptions: Average U.S. labor rates, standard stainless/aluminum liners, normal access, one-story chase or roof access.
Cost Components: Materials, Labor, Equipment, Permits
Breaking a quote into parts helps compare bids and spot markups.
| Materials | Labor | Equipment | Permits | Disposal |
|---|---|---|---|---|
| $4-$25 per linear ft for aluminum, $30-$85 per linear ft for stainless | $75-$125 per hour; typical 3-10 hours | $50-$300 one-time rigging or scaffolding charge | $0-$300 depending on local code | $50-$200 for debris and old liner removal |
Assumptions: Crew of 1-3, moderate complexity job.
How Liner Material and Diameter Change Final Price
Material selection and flue diameter are primary per-foot drivers: aluminum is cheapest, flexible stainless and rigid stainless cost more. Typical per-foot ranges: aluminum $4-$25/ft (good for lower-temperature, short runs), flexible stainless $30-$60/ft, rigid stainless $55-$85/ft. Diameter change: moving from 4″ to 7″ can increase material cost 15%-40% and may require larger fittings or chimney modifications.
Chimney Height, Access, and Structural Work That Raise a Quote
Height and difficult access often increase labor and equipment charges significantly. Numeric thresholds: jobs under 10 linear feet typically cost $750-$1,200; chimneys 10-25 linear ft commonly cost $1,200-$2,200; chimneys over 25 linear ft often cost $2,200-$3,500+ because of scaffolding or lift rentals. If the liner run requires roof tear-out or chimney relining through multiple offsets, add $300-$1,200 in extra labor and rigging.
Practical Ways To Lower the Price When Replacing a Chimney Liner
Controlling scope and timing reduces cost: choose the simplest safe liner type and schedule outside peak seasons. Specific tactics: opt for flexible stainless when code allows instead of rigid stainless to save $20-$40/ft; complete prep work (clear attic access, remove obstructions) to cut labor hours; bundle with furnace service or other chimney work to reduce per-job mobilization fees.
Regional Price Differences and Typical Percentage Deltas
Location changes pricing: expect 10%-35% variation from national averages. Example deltas: Northeast/West coast urban areas typically run 15%-35% higher than Midwest and South; rural labor markets can be 10%-20% lower but add travel fees of $75-$250. Permit fees and local code requirements can add another $50-$300.
Common Add-Ons, Inspection Fees, and Hidden Charges
Standard quotes often exclude inspection, cap, and termination hardware, which add $150-$750. Typical add-ons: chimney cap or rain collar $75-$250, termination/adapter $50-$200, CCTV inspection $150-$400, masonry repairs or chase cover replacement $300-$1,200. Ask whether the quote includes testing for draft and smoke after installation.
Three Real-World Quote Examples With Specs and Totals
Concrete examples help set realistic expectations for similar homes.
| Job | Specs | Labor Hours | Per-Foot | Total |
|---|---|---|---|---|
| Small Ranch | Flexible stainless, 8 ft, 4″ flue | 3 hrs | $35/ft | $1,000 ($280 materials + $450 labor + $270 equipment/fees) |
| Two-Story Colonial | Rigid stainless, 22 ft, 6″ flue | 8 hrs | $65/ft | $2,400 ($1,430 materials + $800 labor + $170 permits/disposal) |
| Tall Victorian | Rigid stainless, offsets, 30 ft, 7″ flue | 12 hrs | $75/ft | $3,800 ($2,250 materials + $1,200 labor + $350 scaffolding) |