How much does basement waterproofing cost in Denver, CO?

Most Denver homeowners spend between $3,250 – $13,100 on basement waterproofing, with an average around $7,100. Local labor prices 9% above the national average, so Denver quotes tend to land at the higher end of national ranges.

Why is basement waterproofing more or less expensive in Denver than elsewhere?

Denver labor runs about 10% above the national average and books out in summer. Hail is the top driver of roof replacement; freeze-thaw affects concrete.

Do I need a permit for basement waterproofing in Denver, Colorado?

Denver permits required for roofing, structural, electrical and fences. 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 Denver?

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 basement waterproofing cost?

$3,000 to $12,000 on average. Interior drainage is $3,000 to $10,000; exterior excavation is $8,000 to $25,000.

Interior or exterior waterproofing?

Interior drain tile manages water that gets in and costs far less. Exterior membrane keeps water out entirely and is the permanent fix, at two to three times the price.

How much is a sump pump?

$1,000 to $3,000 installed, plus $500 to $1,500 for a battery backup that keeps working during a storm outage.

Is waterproofing covered by insurance?

Groundwater seepage is excluded from standard homeowners policies. Separate flood insurance or a water backup endorsement is required.

Will waterproofing fix mold?

It stops the moisture source, but existing mold needs separate remediation, typically $1,500 to $6,000.

Does a dry basement add value?

Yes — a documented, warrantied waterproofing system removes a major buyer objection and enables finishing the space.

Home/Cost guides/Basement Waterproofing/Denver, CO

Denver · Colorado

Basement Waterproofing cost in Denver, CO

Denver homeowners typically pay $3,250 – $13,100 for basement waterproofing. Local labor and materials price 9% above the national average.

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Denver average

$7,100

Typical low

$3,250

Typical high

$13,100

Per linear foot

$44 – $275

Sample ZIP

80202

What drives Denver pricing

Local labor

Denver labor runs about 10% above the national average and books out in summer.

Permits & code

Denver permits required for roofing, structural, electrical and fences.

Climate & conditions

Hail is the top driver of roof replacement; freeze-thaw affects concrete.

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Wall length to treat80 linear feet

Method

Foundation depth

Exterior access

Water problem

Estimated project cost

$436 – $1,280

Most homeowners pay around $858

Compare method

Cost by material in Denver

Installed Denver pricing per linear foot.

Option	Installed cost	Pros	Cons
Interior sealant	$5 – $16	Cheapest, DIY possible	Cosmetic — does not stop hydrostatic pressure
Interior drain tile + sump	$44 – $110	Effective, no landscaping destroyed, done in days	Relies on a pump and power
Exterior membrane	$110 – $275	Stops water before it reaches the wall — the permanent fix	Most expensive and disruptive
Crawlspace encapsulation	$22 – $65	Controls humidity, mold and energy loss	Needs a dehumidifier to keep working
Wall reinforcement	$87 – $220	Addresses bowing plus water together	Structural scope and engineering

Where the money goes in Denver

A typical $7,100 Denver project, broken down by line item.

Labor and excavation50% · $3,550
Drainage materials22% · $1,562
Sump pump and equipment16% · $1,136
Concrete restoration and disposal12% · $852

Common add-ons

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

Sump pump

$655 – $2,200

Battery backup

$545 – $1,650

Dehumidifier

$1,300 – $3,250

Mold remediation

$1,650 – $6,550

Vapor barrier

Per square foot

$2 – $7

Egress window

$2,750 – $6,550

Ways to save in Denver

Do the cheap exterior fixes first — gutters, downspout extensions and grading solve many wet basements for under $1,000.
Choose interior drain tile over exterior excavation unless the wall itself is failing.
Get bids from waterproofing specialists and a general contractor; approaches and prices differ enormously.
Ask about a transferable lifetime warranty — it holds value at resale.
Install the sump and drainage before finishing the basement, never after.

Denver FAQs

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More Denver research

Best basement waterproofing companies in Denver Basement Waterproofing permits in Colorado Basement Waterproofing near me All Colorado prices

Basement Waterproofing cost near Denver

Basement Waterproofing cost in Aurora, CO

$3,131 – $12,619

Basement Waterproofing cost in Lakewood, CO

$3,190 – $12,860

Basement Waterproofing cost in Boulder, CO

$3,518 – $14,182

Basement Waterproofing cost in Arvada, CO

$3,161 – $12,739

Basement Waterproofing cost in Westminster, CO

$3,161 – $12,739

Basement Waterproofing cost in Centennial, CO

$3,220 – $12,980

More Colorado cities

Colorado Springs Fort Collins Greeley Pueblo Thornton Longmont Loveland

Other project costs in Denver

Fence Installation in Denver

$1,635 – $4,360

Roof Replacement in Denver

$9,265 – $37,060

Kitchen Remodel in Denver

$19,620 – $103,550

HVAC Replacement in Denver

$5,995 – $19,620

Deck Building in Denver

$4,796 – $13,080

Window Replacement in Denver

$491 – $1,635

See every Denver cost guide