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The Best Concrete Waterproofing and Remediation Contractors in Los Angeles

5 Min Read

Los Angeles is a seaside town with a balmy, Mediterranean-like climate, and a very active seismic scene. This combination of local conditions makes for a tough environment in which to create and maintain concrete structures in the city.

Older concrete structures are particularly vulnerable, as heat, water, and earthquakes have already taken a toll on them. With numerous contractors throughout Los Angeles specializing in concrete waterproofing and remediation, the following nine are the masters of this space- and life-saving craft.


9) Affinity Building Solutions

246 S 5th Ave, La Puente, CA, 91746

Affinity Building Solutions is a fully licensed, bonded and insured La Puente-based general contractor serving the Los Angeles and Orange counties. The firm specializes in repairing, protecting and proofing both concrete and wood, wherever it may be found in a home or building. Aside from waterproofing and concrete crack repair & injection, the company also offers services for decorative concrete overlays, parking lot and deck resurfacing, concrete sealing, concrete polishing, patio and deck waterproofing,  concrete stains and dyes, commercial and industrial flooring, and epoxy coating. Affinity Building Solutions has in-staff technicians who are trained and certified by top waterproofing and remediation products factories including Sika, Diamati and Ardex.

8) Val-Arm, Inc.

997 Cape May Dr, Pittsburg, CA 94565

Val-Arm, Inc. is a concrete waterproofing and restoration contractor based in Pittsburg, CA. The firm has served the entire state, particularly Los Angeles, Orange, Riverside, and San Diego, since it was established in 2008. Concrete restoration, concrete polishing, waterproofing, deck repair, epoxy flooring, decorative cement coatings, and stamped concrete are included in the company’s specialty services. The staff of Val-Arm guarantee ease of mind to each client they work with.

7) BCN Group

720 E Los Angeles Ave, Monrovia, CA 91016

BCN Group is a general and specialty contracting company and design-build firm based in Monrovia, CA. President Jackie Pearson leads the company, which was founded in 2014 by a core team of industry veterans with a combined century of experience. Aside from concrete restoration and waterproofing, the firm also engages in structural upgrades, and in commercial, institutional and industrial construction. BCN Group’s concrete services include concrete bridge retrofit, concrete building repair, concrete building restoration, spall repair and grouting, and structural concrete construction and repair.

6) Courtney, Inc.

16781 Millikan Ave, Irvine, CA 92606

Courtney, Inc. is a commercial roofing, waterproofing and concrete restoration contractor based in Irvine, CA. The company has been servicing the states of California and Nevada since the 1980’s, and its focus is on multi-million commercial and institutional projects for both private and public sectors, including schools, hospitals, offices, high-rises, and hospitality spaces. Notable projects include LA Live, the Los Angeles Unified School District, and the Soka University Performing Arts Center in Aliso Viejo.

5) Concrete Restoration Systems

724 Richfield Rd, Placentia, CA 92870

Concrete Restoration Systems has been in the concrete waterproofing and remediation industry since 1990. The company is a fully licensed and insured specialty contractor who’s service covers Los Angeles, Riverside, San Bernardino, and Orange County. Leading concrete restoration and waterproofing system manufacturers, including Sika, SealBoss, and Westcoat, have certified the contracting firm’s staff as concrete applicators. Notable projects include the Beverly Hills Hilton, and Los Angeles Downtown’s Petroleum Building.

4) A&E Waterproofing

311 E Stocker St, Ste 201, Glendale, CA 91207

A&E Waterproofing, alternatively known as A&E Builders, is a concrete remediation and waterproofing contractor based in Glendale. Established in 2013, the company is led by CEO Noraeir Hovsepian and RMO Argishti Kamalian. The firm specializes in waterproofing, basements, water damage repair, and crack sealing. A&E Waterproofing proudly serves Glendale, Burbank, Pasadena, Arcadia, San Fernando Valley, and the entire Los Angeles area.

3) ACE Restoration and Waterproofing

620 E Walnut Ave, Fullerton, CA 92831

Established in 1989, ACE Restoration and Waterproofing is a Fullerton-based contractor that specializes in concrete repair, protection, and waterproofing, as well as epoxy injection and other concrete services. Since its founding, the company has completed over 3,000 projects, including Disneyland, the University of California, Los Angeles, Intel, and ABC Studios. Most notable of ACE’s projects in Los Angeles is the historical restoration of the Citadel Outlets, one of the most iconic structures in Los Angeles. In addition, the firm is known outside California for its work at Pearl Harbor, Hawaii.

2) Sinai Construction Engineering

4489 W Pico Blvd, Los Angeles, CA 90019

Sinai Construction Engineering is a general contracting and engineering firm based in Los Angeles. In addition to concrete remediation and waterproofing, the company also offers soft-story and seismic retrofit, foundation repair and replacement, floor leveling, drainage, slope repair, and retaining walls. The firm is highly experienced in projects involving the Federal Emergency Management Agency, the Los Angeles Neighborhood Housing Services and the Community Development Commission. Sinai is also a proud member of the International Concrete Repair Institute, and of the National Association for Waterproofing and Structural Repair Contractors.

1) Western Specialty Contractors

650 North Batavia, Orange, CA 92868

Western Specialty Contractors is the special projects arm of the Western Construction Group, a general contracting company headquartered in St. Louis, Missouri, and with more than 20 locations across the United States. The firm offers a wide range of services throughout the country, including concrete restoration, disaster recovery, masonry restoration, roofing services, and facades and rain screen. Western Specialty Contractors is an award-winning firm, receiving numerous awards and accolades over the years including the Award Of Excellence for Outstanding Concrete Repair, the Growing Green Award, the SWR Institute Trinity Award, a Transformation Award, and the AGC ZERO Recordable Accidents Safety Award. It has also been featured in many publications regarding the construction industry, including Facility Executive, Builder News, Mass Transit: Safety & Security, Paint & Coatings Industry Magazine, Saint Louis Construction News And Review, and Retrofit.



  • Shahe Demirdjian

    Shahe is an Editor at Los Angeles Contractors with around four years of experience as a writer and editor in the construction space. Shahe has always had a huge interest in commercial/residential construction and real estate. On top of his experience at Los Angeles Contractors, he has two years of experience as a Construction Partner Specialist at BuildZoom and six years of experience as a licensed real estate agent. In his work, he takes advantage of his expertise to take complex technical jargon from those realms and transform them into accessible, engaging content, blending his business administration expertise with a degree from Arizona State University with his experiential insights.  Expertise: Architecture, Home Design and Build, Home Remodeling Key Highlights: Arizona Real Estate - Licensed Salesperson  Education: Arizona State University, Bachelors in Business Administration