How much does basement waterproofing cost in Long Beach, CA?

Most Long Beach homeowners spend between $3,650 – $14,600 on basement waterproofing, with an average around $7,950. Local labor prices 22% above the national average, so Long Beach quotes tend to land at the higher end of national ranges.

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

Long Beach pricing tracks greater LA with a small coastal premium. Salt air shortens the life of untreated metal and paint.

Do I need a permit for basement waterproofing in Long Beach, California?

City permits required for exterior alterations; coastal zone triggers extra 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 Long Beach?

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 Los Angeles 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/Long Beach, CA

Los Angeles · California

Basement Waterproofing cost in Long Beach, CA

Long Beach homeowners typically pay $3,650 – $14,600 for basement waterproofing. Local labor and materials price 22% above the national average.

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Long Beach average

$7,950

Typical low

$3,650

Typical high

$14,600

Per linear foot

$49 – $305

Sample ZIP

90802

What drives Long Beach pricing

Local labor

Long Beach pricing tracks greater LA with a small coastal premium.

Permits & code

City permits required for exterior alterations; coastal zone triggers extra review.

Climate & conditions

Salt air shortens the life of untreated metal and paint.

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

$488 – $1,440

Most homeowners pay around $964

Compare method

Cost by material in Long Beach

Installed Long Beach pricing per linear foot.

Option	Installed cost	Pros	Cons
Interior sealant	$6 – $18	Cheapest, DIY possible	Cosmetic — does not stop hydrostatic pressure
Interior drain tile + sump	$49 – $120	Effective, no landscaping destroyed, done in days	Relies on a pump and power
Exterior membrane	$120 – $305	Stops water before it reaches the wall — the permanent fix	Most expensive and disruptive
Crawlspace encapsulation	$24 – $73	Controls humidity, mold and energy loss	Needs a dehumidifier to keep working
Wall reinforcement	$98 – $245	Addresses bowing plus water together	Structural scope and engineering

Where the money goes in Long Beach

A typical $7,950 Long Beach project, broken down by line item.

Labor and excavation50% · $3,975
Drainage materials22% · $1,749
Sump pump and equipment16% · $1,272
Concrete restoration and disposal12% · $954

Common add-ons

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

Sump pump

$730 – $2,450

Battery backup

$610 – $1,850

Dehumidifier

$1,450 – $3,650

Mold remediation

$1,850 – $7,300

Vapor barrier

Per square foot

$2 – $7

Egress window

$3,050 – $7,300

Ways to save in Long Beach

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.

Long Beach FAQs

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More Long Beach research

Best basement waterproofing companies in Long Beach Basement Waterproofing permits in California Basement Waterproofing near me All California prices

Basement Waterproofing cost near Long Beach

Basement Waterproofing cost in Los Angeles, CA

$3,710 – $14,839

Basement Waterproofing cost in Pasadena, CA

$3,830 – $15,318

Basement Waterproofing cost in Glendale, CA

$3,740 – $14,959

Basement Waterproofing cost in Santa Clarita, CA

$3,470 – $13,882

Basement Waterproofing cost in Torrance, CA

$3,680 – $14,720

More California cities

San Diego San Jose San Francisco Oakland Sacramento Fresno Anaheim Santa Ana

Other project costs in Long Beach

Fence Installation in Long Beach

$1,830 – $4,880

Roof Replacement in Long Beach

$10,370 – $41,480

Kitchen Remodel in Long Beach

$21,960 – $115,900

HVAC Replacement in Long Beach

$6,710 – $21,960

Deck Building in Long Beach

$5,368 – $14,640

Window Replacement in Long Beach

$549 – $1,830

See every Long Beach cost guide