How much does sewer line replacement cost in Boulder, CO?

Most Boulder homeowners spend between $5,650 – $17,700 on sewer line replacement, with an average around $11,700. Local labor prices 18% above the national average, so Boulder quotes tend to land at the higher end of national ranges.

Why is sewer line replacement more or less expensive in Boulder than elsewhere?

Boulder is the priciest Front Range market with premium green-build standards. Snow loads, hail and wildfire-interface rules all apply.

Do I need a permit for sewer line replacement in Boulder, Colorado?

Strict city permitting, energy codes and design review. Always confirm current requirements with the local building department before signing a contract, and make sure the permit is pulled by your licensed contractor.

How many quotes should I get in Boulder?

Get at least three written quotes from licensed, insured Colorado contractors. Comparing line items — not just the bottom line — is the fastest way to spot an inflated bid in the Denver market.

How much does sewer line replacement cost in 2026?

Most homeowners pay between $4,800 and $15,000, with a national average near $9,900. Small, simple jobs land at the low end; large or premium-material jobs run well above the high end.

What is the cost per linear foot?

Installed pricing usually runs $80.00 to $250.00 per linear foot, including labor and materials. Expensive metros can run 15–45% higher than that range.

What drives the price up the most?

Scope and access. Larger quantities lower your per-linear foot price, but difficult access, demolition of existing work, structural repairs found mid-job, premium materials and rush scheduling each add 8–30%.

Permits are typically required when the work changes structure or ties into electrical, plumbing, gas or mechanical systems. Budget $75–$600 in most cities and confirm whether your contractor pulls it — unpermitted work can block a future home sale.

How long does the job take?

Most residential projects of this type finish in one to five working days once materials are on site. Custom orders, inspections and weather are the usual causes of delay.

How many quotes should I get?

Three. Bids on the same scope commonly vary 20–40%, and the middle bid with the strongest warranty and references is usually the best value — the cheapest bid often excludes prep, disposal or permits.

Home/Cost guides/Sewer Line Replacement/Boulder, CO

Denver · Colorado

Sewer Line Replacement cost in Boulder, CO

Boulder homeowners typically pay $5,650 – $17,700 for sewer line replacement. Local labor and materials price 18% above the national average.

Get my Boulder estimate Use the Boulder calculator

Boulder average

$11,700

Typical low

$5,650

Typical high

$17,700

Per linear foot

$94 – $295

Sample ZIP

80301

What drives Boulder pricing

Local labor

Boulder is the priciest Front Range market with premium green-build standards.

Permits & code

Strict city permitting, energy codes and design review.

Climate & conditions

Snow loads, hail and wildfire-interface rules all apply.

Instant cost calculator

Adjust the inputs to see live pricing

Line length (linear feet)60 linear feet

Quality / material level

Site access

Removal / prep work

Timing

Estimated project cost

$6,840 – $9,405

Most homeowners pay around $8,123

Compare quality / material level

Cost by material in Boulder

Installed Boulder pricing per linear foot.

Option	Installed cost	Pros	Cons
Spot repair	$120 – $165	—	—
Traditional trench replacement	$165 – $220	—	—
Pipe bursting (trenchless)	$220 – $280	—	—
CIPP lining (trenchless)	$280 – $390	—	—

Where the money goes in Boulder

A typical $11,700 Boulder project, broken down by line item.

Labor0.45% · $53
Materials0.38% · $44
Permits & inspections0.05% · $6
Overhead & profit0.12% · $14

Common add-ons

Extras that show up on Boulder quotes but rarely in the headline price.

Camera inspection

$175 – $590

Cleanout installation

$470 – $1,400

Landscape and concrete restoration

$590 – $4,700

Permit and city tap fee

$235 – $1,750

Ways to save in Boulder

Get a camera inspection first — many failures only need a spot repair.
Ask whether pipe bursting avoids driveway demolition and restoration cost.
Collect three written bids on an identical scope — spreads of 20–40% are normal.
Book in the off-season and stay flexible on the start date to save 5–15%.
Bundle nearby work into one mobilization so you only pay setup and travel once.
Ask what the contractor would change to cut 10% without hurting durability.

Boulder FAQs

Get a Boulder price you can budget against

Answer a few questions about your project and we'll model a low, average and premium price for your CO ZIP code — then connect you with vetted local pros.

Get free quotes from certified pros

More Boulder research

Best sewer line replacement companies in Boulder Sewer Line Replacement permits in Colorado Sewer Line Replacement near me All Colorado prices

Sewer Line Replacement cost near Boulder

Sewer Line Replacement cost in Denver, CO

$5,219 – $16,350

Sewer Line Replacement cost in Aurora, CO

$5,028 – $15,750

Sewer Line Replacement cost in Lakewood, CO

$5,123 – $16,050

Sewer Line Replacement cost in Arvada, CO

$5,075 – $15,900

Sewer Line Replacement cost in Westminster, CO

$5,075 – $15,900

Sewer Line Replacement cost in Centennial, CO

$5,171 – $16,200

More Colorado cities

Colorado Springs Fort Collins Greeley Pueblo Thornton Longmont Loveland

Other project costs in Boulder

Fence Installation in Boulder

$1,770 – $4,720

Roof Replacement in Boulder

$10,030 – $40,120

Kitchen Remodel in Boulder

$21,240 – $112,100

HVAC Replacement in Boulder

$6,490 – $21,240

Deck Building in Boulder

$5,192 – $14,160

Window Replacement in Boulder

$531 – $1,770

See every Boulder cost guide