Gas Furnace Chimney Liner Cost: Typical Prices and Ranges 2026

Homeowners replacing or installing a gas furnace chimney liner typically pay $800-$3,500 depending on material, chimney height, and accessibility; this article lists realistic cost ranges and the main price drivers for gas furnace chimney liner cost.

Item	Low	Average	High	Notes
Basic single-wall stainless liner (3–5 ft)	$400	$900	$1,600	Assumptions: 10–12″ chimney, easy access.
Flexible aluminum liner (short run)	$300	$700	$1,200	Best for small gas vent conversions; not for high-efficiency furnaces.
Class A insulated stainless, full-height	$1,200	$2,200	$4,000	Assumptions: 15–25 ft, mid-range labor.
Chimney cap, chase top, mortar repair add-ons	$150	$450	$1,200	Includes basic cap or minor masonry.

Typical Total Price For Installing a Chimney Liner For a Gas Furnace

Most homeowners pay $800-$3,000 to install a gas furnace chimney liner; an average job is about $1,800 for a 15–20 ft stainless insulated liner with moderate access. This range assumes a standard single-family home, 80,000–120,000 BTU furnace, and normal chimney chase access.

Assumptions: Midwest labor rates, standard venting code compliance, no major masonry work.

Breakdown Of Major Quote Components For a Chimney Liner Job

The final invoice combines material, labor, equipment, and disposal or permit fees; homeowners should expect to see these line items on estimates.

Materials	Labor	Equipment	Permits	Delivery/Disposal	Contingency
$300-$2,500 (liner type & length)	$300-$1,200 (crew hours)	$50-$400 (scaffolding, power brushes)	$0-$300 (local permit)	$0-$200 (waste, old liner)	$100-$500 (unexpected masonry)

Materials and labor typically make up 70%–90% of the total invoice.

How Flue Diameter, Liner Material, And Chimney Height Change The Final Quote

Diameter and length drive material cost: 3–4″ liners for direct-vent small furnaces cost less than 6–8″ liners for larger equipment. Expect roughly $40-$80 per linear foot for Class A insulated stainless and $10-$25 per linear foot for flexible liners.

Numeric thresholds that change quotes: runs under 10 ft often fall in the low range; runs 10–20 ft move to average pricing; runs over 25 ft or with offsets add 15%–40% to labor and material costs.

Ways To Cut Chimney Liner Price Through Scope, Timing, And Materials

Choose the smallest code-compliant liner diameter for the furnace, schedule work off-peak, and bundle masonry repairs to reduce mobilization fees. Replacing only the liner (not rebuilding the chimney) can save $500-$2,000 versus full masonry work.

Other options: accept a flexible liner if allowed by code and appliance, get multiple written quotes, and do simple homeowner prep like clearing attic access to save time.

How Regional Market Differences Affect Chimney Liner Pricing

Prices vary by region: coastal urban areas are typically 10%–35% higher than the national average; rural markets can be 5%–20% lower. Example: a $1,800 average job in the Midwest may cost $2,200-$2,400 in a coastal city.

Assumptions: regional labor, local code complexity, and contractor availability influence deltas.

Typical Labor Time, Crew Size, And Hourly Rates For This Work

Most installations take 4–12 hours with a two-person crew; small flexible-liner jobs can be 2–4 hours. Labor rates commonly fall between $75-$125 per hour per crew member; total labor often equals 4–20 crew-hours.

Common Add-Ons And Real Quote Examples With Specs And Totals

Common add-ons include chimney cap ($150-$450), chase top or stainless chase cover ($300-$1,000), and repointing ($400-$2,500). These extras can shift a basic liner job into a $3,000+ project quickly.

Example	Specs	Labor Hours	Per-Unit Rates	Total
Budget	Flexible 4″ liner, 8 ft, attic access	3	$15/ft liner	$300-$700
Average	Insulated SS 6″ liner, 16 ft, no masonry	8	$60/ft liner	$1,400-$2,200
High-End	Class A SS 8″ liner, 30 ft, chase top and repoint	18	$75/ft liner	$3,000-$5,000

Assumptions: quoted totals include materials and labor but exclude major chimney rebuilds and structural modifications.