Top Waterproofing Contractors in California
Waterproofing contractors protect buildings from water intrusion through basement sealing, foundation coatings, drainage systems, and moisture barriers. US waterproofing work must comply with ICC building codes for below-grade moisture protection and local stormwater management requirements.
500+
Waterproofing Contractors Available
4.8★
Avg. Rating
< 4 hrs
First Bid Time
$0
To Post a Job
Why Hire Waterproofing Contractors Through Biddaro in California?
We make it simple, safe, and competitive to hire the right professional.
Licensed Professionals
Every waterproofing contractor in California is license-verified with work history reviewed before they can bid on your job.
Competitive Bidding
Post once and receive multiple bids from waterproofing contractors in California. Compare pricing, experience, and ratings to choose the best.
Secure Escrow Payments
Your payment is held safely in escrow and released only when you approve completed work — zero risk of being scammed.
How to Hire a Waterproofing Contractor in California
Post Your Job
Describe your waterproofing project in California — takes under 2 minutes. Add photos, budget, and timeline.
Receive Bids
Verified waterproofing contractors in California review your job and send their best quotes within hours.
Hire & Pay Safely
Choose your preferred contractor, sign the contract on Biddaro, and pay securely via escrow.
Top Waterproofing Contractors in California
Verified professionals ready to bid on your project
Liberty Construction Co.
Eagle Build Services
Summit Home Solutions
Patriot Pro Builders
Waterproofing Services Available in California
Waterproofing Contractors by City in California
Find waterproofing contractors in specific cities across California.
Los Angeles
Waterproofing contractors
San Francisco
Waterproofing contractors
San Diego
Waterproofing contractors
San Jose
Waterproofing contractors
Sacramento
Waterproofing contractors
Fresno
Waterproofing contractors
Oakland
Waterproofing contractors
Irvine
Waterproofing contractors
Long Beach
Waterproofing contractors
Riverside
Waterproofing contractors
Other Contractors Available in California
Waterproofing Contractors in Other States
Frequently Asked Questions
How much does basement waterproofing cost in California?
Basement waterproofing in California costs $5–15/sqft depending on the method. Interior sealants are the most affordable at $1,500–4,000, while exterior excavation and membrane systems run $8,000–25,000 for a full perimeter.
What are signs I need waterproofing in California?
Watch for damp or musty smells in your basement, visible water stains on walls, efflorescence (white mineral deposits), cracks in foundation walls, pooling water after rain, and mold growth. In California, seasonal weather patterns can worsen these issues.
Do waterproofing contractors in California need a license?
Most jurisdictions in California require waterproofing contractors to hold a general contractor or specialty license. They should also carry liability insurance and offer warranties on their work — typically 10–25 years for foundation waterproofing.
How do I find a waterproofing contractor in California?
Compare verified waterproofing contractors on Biddaro in California. Check their warranty terms, read customer reviews, verify licensing, and get at least 3 quotes before committing to a project.
Ready to Hire a Waterproofing Contractor in California?
Post your job for free and receive bids from verified professionals in California within hours.
No commission charged to job posters • Secure escrow included