Get matched with the best Basement Waterproofing pros in Los Angeles County, CA

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Golden Retrofit & Foundation Repair - Basement Waterproofing in Los Angeles, CA

Golden Retrofit & Foundation Repair

★ ★ ★ ★ ★ 4.7 (13 reviews)

Los Angeles, CA

2 projects

Golden Retrofit & Foundation Repair specializes in comprehensive foundation solutions, including repair, replacement, leveling, and earthquake retrofitting. Our expert team employs advanced techniques...

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JAC Building & Remodeling

★ ★ ★ ★ ★ 4.8 (9 reviews)

Adelanto, CA 92301

JAC Building & Remodeling, located in Adelanto, CA, specializes in high-quality construction and renovation services. Our experienced team is dedicated to transforming residential and commercial space...

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AA Design Firm - Basement Waterproofing in Los Angeles, CA

AA Design Firm

★ ★ ★ ★ ★ 4.7 (9 reviews)

Los Angeles, CA 90068

32 projects

Welcome to AA Design Firm, founded by twin sisters Ava and Arlene Tai. Our mission is to transform your living space into a true reflection of your personality and lifestyle. We specialize in innovati...

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Leon Unlimited Construction - Basement Waterproofing in Pearblossom, CA

Leon Unlimited Construction

★ ★ ★ ★ ★ 4.7 (9 reviews)

Pearblossom, CA 93553

1 project

Leon Unlimited Construction manages projects of all sizes, from minor repairs to complete home builds. Specializing in smart home systems, home theaters, and A/V installations, we pride ourselves on q...

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Easy Builders Construction - Basement Waterproofing in Glendora, CA

Easy Builders Construction

★ ★ ★ ★ ★ 4.8 (8 reviews)

Glendora, CA 91740

4 projects

Easy Builders Construction is your trusted partner for all construction needs in the Los Angeles area. We specialize in managing projects of any size with a commitment to excellence and efficiency. Co...

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Handy Phalanges ~ Handyman Services

★ ★ ★ ★ ★ 4.6 (8 reviews)

Hesperia, CA 92345

Handy Phalanges offers professional handyman services in Hesperia, CA. Our skilled team is dedicated to providing high-quality repairs, installations, and maintenance for residential and commercial pr...

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Kaplan Construction - Basement Waterproofing in Signal Hill, CA

Kaplan Construction

★ ★ ★ ★ ★ 4.7 (7 reviews)

Signal Hill, CA 90755

3 projects

Kaplan Construction has been a trusted provider of general contracting and construction services in Long Beach, California, since 1991. Our success stems from strong client relationships and referrals...

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Verified Reviews for Basement Waterproofing pros in Los Angeles County, CA

*The Growcycle rating for Basement Waterproofing companies in Los Angeles County, CA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Basement Waterproofing needs.

Last update on July 10, 2026

Emily Davis

Reviewed in January 2026

From start to finish, the experience was seamless! They were responsive to my questions and made sure I was happy with every step of the process. Would recommend to anyone!

Leon Unlimited Construction Request a quote

David Wilson

Reviewed in October 2025

I had a wonderful experience with Kaplan Construction. From start to finish, they were professional and delivered on time, exceeding my expectations.

Kaplan Construction Request a quote

Karen Lewis

Reviewed in September 2025

I was impressed with the professionalism and expertise of the team. They handled my foundation repair quickly and effectively. Highly recommend their services for any foundation issues.

Golden Retrofit & Foundation Repair Request a quote

Lonnie Hernandez

Reviewed in August 2025

Fantastic service! The team was punctual and did an amazing job on my bathroom remodel. Highly recommend them for any handyman needs.

Handy Phalanges ~ handyman services Request a quote

Pamela Diaz

Reviewed in January 2026

I had a fantastic experience working with Aa Design Firm. Ava and Arlene truly transformed my living room into a cozy yet stylish space. Highly recommend their services!

AA Design Firm Request a quote

Cost Guide

How much does Basement Waterproofing cost in Los Angeles County, CA?

Typical basement waterproofing projects in Los Angeles County, CA range from $1,500 to $7,000, with most homeowners paying around $3,500.

$1,500

$3,500 Typical cost in Los Angeles County, CA

$7,000

LOWHIGH

Prices vary by project scope, materials, and local labor rates.

Per Sq Ft $10–$25

Per Linear Foot $5–$15

Per Project $1,500–$7,000

Last updated: April 2026

Basement waterproofing services in Los Angeles County typically cost between $1,500 and $7,000, with an average cost around $3,500. The final price can vary based on the extent of water damage, the size of the basement, and the methods used for waterproofing.

Contractors in Los Angeles often charge higher labor rates reflecting the area's cost of living. Most waterproofing work requires permits from the Los Angeles Department of Building and Safety, and costs may include inspections and follow-up work.

When comparing basement waterproofing quotes in Los Angeles, pay attention to the materials and methods proposed to ensure a long-lasting solution.

What affects the cost in Los Angeles County, CA?

Los Angeles County Labor Rates

Licensed waterproofing contractors in Los Angeles County charge between $75 and $150/hr based on their expertise and the complexity of the job. This can affect your overall project cost significantly.

Permits & Inspections

Most waterproofing work in Los Angeles County requires permits from the Los Angeles Department of Building and Safety. These permits can add additional time and costs, so it’s crucial to include them in your budget.

Material Selection & Quality

The choice of waterproofing materials can affect the total cost by 15–30%. High-quality materials may have a higher upfront cost but can provide better long-term protection against water damage.

Seasonal Demand & Scheduling

The best time to schedule basement waterproofing in Los Angeles County is during the dry season in late spring to early fall. This minimizes the risk of water intrusion during the project and can help avoid scheduling conflicts.

Frequently Asked Questions About Basement Waterproofing in Los Angeles County, CA

How can I find a reliable basement waterproofing contractor?

Finding a reliable basement waterproofing contractor in Los Angeles County involves researching local professionals and checking their credentials. Start by asking friends or family for recommendations and reading online reviews. Look for contractors who are licensed and insured, as this ensures a level of professionalism and accountability. When interviewing potential contractors, ask about their experience, methods, and warranties offered. Request estimates from multiple companies to compare pricing and services. A trustworthy contractor should be transparent about the process, answer your questions, and provide references from previous clients to help you make an informed decision.

What are the signs that my basement needs waterproofing?

Several signs indicate that your basement may need waterproofing. Homeowners in Los Angeles County should look for water stains on walls or floors, a musty smell, or visible mold growth. Cracks in the foundation or walls can also signal potential water intrusion issues. If you notice pooling water around your foundation after heavy rains, it’s a clear indication that your basement requires attention. Additionally, if your basement is frequently damp or humid, it’s time to consider waterproofing solutions. Addressing these issues early can help prevent more severe damage and costly repairs down the road.

What is basement waterproofing?

Basement waterproofing is the process of preventing water from entering your basement or crawl space. This is crucial for homeowners in Los Angeles County, where seasonal rains can lead to flooding and water damage. Waterproofing techniques may include using sealants, installing drainage systems, and applying waterproof membranes. These methods help protect your home’s foundation from moisture and mold, ensuring a safe and dry environment for your family. Proper waterproofing not only safeguards your home but can also enhance its value and livability, making it a critical investment for any homeowner.

What methods are used for basement waterproofing?

There are several effective methods for basement waterproofing, which vary based on the specific needs of your home. In Los Angeles County, common techniques include interior sealing, exterior waterproofing, and installing drainage systems. Interior sealing involves applying waterproof paint or sealants to walls and floors. Exterior waterproofing may include excavating around the foundation and applying a waterproof membrane. Additionally, installing a sump pump can help divert excess water away from the basement. A professional waterproofing contractor can assess your situation and recommend the best methods to ensure your basement remains dry and protected.

Why is it important to waterproof my basement?

Waterproofing your basement is essential to prevent structural damage and maintain a healthy living space. In Los Angeles County, heavy rains and groundwater can lead to leaks and flooding, resulting in costly repairs and health hazards like mold growth. A waterproofed basement protects your home’s foundation, keeps your belongings dry, and reduces the risk of water-related issues. In addition, a dry basement can be utilized for storage or as additional living space, increasing your home’s value. Investing in basement waterproofing is a proactive measure that can save you time, money, and stress in the long run.

Common Basement Waterproofing services and their costs

Typical pricing in Los Angeles County, CA by service type.

Interior Waterproofing

Solutions for inside the basement

Method	Cost Range
Sealant Application Application of waterproof sealant to basement walls.	$1,500–$3,000
Interior Drainage System Installation of a drainage system to collect and redirect water.	$2,000–$5,000
Sump Pump Installation Setting up a sump pump to remove accumulated water.	$1,500–$4,000
Wall Waterproofing Waterproofing of basement walls using specialized coatings.	$1,500–$3,500

Exterior Waterproofing

Preventing water intrusion from outside

Method	Cost Range
Excavation & Waterproofing Excavating around the foundation and applying waterproofing material.	$5,000–$10,000
French Drain Installation Installation of a French drain to redirect groundwater.	$3,000–$7,000
Foundation Coating Applying waterproof coating to the foundation from the outside.	$2,500–$6,000
Grading & Landscaping Adjusting the landscape to improve drainage away from the foundation.	$1,500–$4,000

Ready to start your basement waterproofing project? Get free quotes from vetted pros in Los Angeles County, CA.

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Price ranges are estimates compiled from publicly available data and may vary with project scope.

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Get matched with the best Basement Waterproofing pros in Los Angeles County, CA

Which of the following best matches your project?

Golden Retrofit & Foundation Repair

JAC Building & Remodeling

AA Design Firm

Leon Unlimited Construction

Easy Builders Construction

Handy Phalanges ~ Handyman Services

Kaplan Construction

Verified Reviews for Basement Waterproofing pros in Los Angeles County, CA

Emily Davis

David Wilson

Karen Lewis

Lonnie Hernandez

Pamela Diaz

How much does Basement Waterproofing cost in Los Angeles County, CA?

What affects the cost in Los Angeles County, CA?

Frequently Asked Questions About Basement Waterproofing in Los Angeles County, CA

Common Basement Waterproofing services and their costs

Interior Waterproofing

Exterior Waterproofing

Find Basement Waterproofing Pros in other cities near you

Related services for your Basement Waterproofing project

Find Pros for other jobs in Los Angeles County