How much does basement waterproofing cost in Folsom, CA?

Most Folsom homeowners spend between $3,300 – $13,200 on basement waterproofing, with an average around $7,150. Local labor prices 10% above the national average, so Folsom quotes tend to land at the higher end of national ranges.

How many quotes should I get in Folsom?

Get at least three written quotes from licensed, insured California contractors. Comparing line items — not just the bottom line — is the fastest way to spot an inflated bid in the Sacramento 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/Folsom, CA

Sacramento · California

Basement Waterproofing cost in Folsom, CA

Folsom homeowners typically pay $3,300 – $13,200 for basement waterproofing. Local labor and materials price 10% above the national average.

Get my Folsom estimate Use the Folsom calculator

Folsom average

$7,150

Typical low

$3,300

Typical high

$13,200

Per linear foot

$44 – $275

Sample ZIP

95630

What drives Folsom pricing

Local labor

Licensed Folsom contractors carry California workers' comp and prevailing wage pressure, and crews here quote roughly 10% above the national labor average. Demand in the Sacramento market peaks in spring, so booking early usually beats a rush premium.

Permits & code

Folsom follows the California Building Standards Code, so most structural, electrical, plumbing and re-roof work needs a permit from the Folsom building department plus Title 24 energy compliance. Sacramento-area jurisdictions add floodplain review in parts of the valley.

Climate & conditions

Folsom sits in a hot-summer Mediterranean climate with wet winters, so expect heat-rated materials and exterior work scheduled outside the wet winter.

Instant cost calculator

Adjust the inputs to see live pricing

Wall length to treat80 linear feet

Method

Foundation depth

Exterior access

Water problem

Estimated project cost

$440 – $1,360

Most homeowners pay around $900

Compare method

Cost by material in Folsom

Installed Folsom pricing per linear foot.

Option	Installed cost	Pros	Cons
Interior sealant	$6 – $17	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 – $66	Controls humidity, mold and energy loss	Needs a dehumidifier to keep working
Wall reinforcement	$88 – $220	Addresses bowing plus water together	Structural scope and engineering

Where the money goes in Folsom

A typical $7,150 Folsom project, broken down by line item.

Labor and excavation50% · $3,575
Drainage materials22% · $1,573
Sump pump and equipment16% · $1,144
Concrete restoration and disposal12% · $858

Common add-ons

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

Sump pump

$660 – $2,200

Battery backup

$550 – $1,650

Dehumidifier

$1,300 – $3,300

Mold remediation

$1,650 – $6,600

Vapor barrier

Per square foot

$2 – $7

Egress window

$2,750 – $6,600

Ways to save in Folsom

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.

Folsom FAQs

Get a Folsom price you can budget against

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

Get waterproofing quotes

More Folsom research

Best basement waterproofing companies in Folsom Basement Waterproofing permits in California Free basement waterproofing quotes in Folsom Affordable basement waterproofing in Folsom Emergency basement waterproofing in Folsom Basement Waterproofing cost per unit in Folsom Basement Waterproofing near me All California prices

Basement Waterproofing cost near Folsom

Basement Waterproofing cost in Sacramento, CA

$3,240 – $12,960

Basement Waterproofing cost in Roseville, CA

$3,270 – $13,080

Basement Waterproofing cost in Elk Grove, CA

$3,210 – $12,840

Basement Waterproofing cost in Woodland, CA

$3,090 – $12,360

Basement Waterproofing cost in Yuba City, CA

$2,940 – $11,760

Basement Waterproofing cost in Rancho Cordova, CA

$3,150 – $12,600

More California cities

Los Angeles San Diego San Jose San Francisco Oakland Fresno Long Beach Anaheim

Other project costs in Folsom

Fence Installation in Folsom

$1,650 – $4,400

Roof Replacement in Folsom

$9,350 – $37,400

Kitchen Remodel in Folsom

$19,800 – $104,500

HVAC Replacement in Folsom

$6,050 – $19,800

Deck Building in Folsom

$4,840 – $13,200

Window Replacement in Folsom

$495 – $1,650

See every Folsom cost guide