Basement Waterproofing and Below Grade Waterproofing in Bel Air
Basement waterproofing is critical in hillside areas such as Bel Air, Pacific Palisades, Beverly Hills, and West Hollywood. Below-grade structures in these locations are exposed to groundwater, hydrostatic pressure, and soil movement.
This page focuses on EPRO PreTak basement waterproofing systems used in Bel Air and across Los Angeles, where below grade waterproofing must handle hydrostatic pressure and hillside soil conditions.
Our projects across Los Angeles, including Bel Air and Pacific Palisades, require below-grade waterproofing systems that perform under continuous moisture exposure and structural stress.
For this reason, we use EPRO waterproofing systems, including the PreTak membrane, designed for high-performance basement waterproofing and below-grade waterproofing.
EPRO PreTak Waterproofing Systems
EPRO manufactures advanced waterproofing systems for below-grade construction.
PreTak is a self-adhered waterproofing membrane used for vertical and horizontal below-grade applications.
Key characteristics include:
• strong adhesion to concrete and shotcrete
• resistance to hydrostatic pressure
• flexibility for crack bridging
• consistent, long-term performance
In addition, proper system selection plays a key role in long-term waterproofing performance.
Where PreTak Is Commonly Used
The PreTak membrane is typically used for:
• basement waterproofing
• below-grade foundation walls
• retaining walls in hillside construction
• structural walls prior to backfill
In Los Angeles hillside construction, these assemblies must handle constant moisture exposure. Therefore, proper system selection and detailing are critical.
Note: Final product selection depends on project design, substrate, and manufacturer specifications.
Challenges in Basement and Below-Grade Waterproofing
Below-grade waterproofing in areas such as Bel Air and Beverly Hills presents several challenges.
For example:
• hydrostatic pressure from groundwater
• limited access after backfill
• structural movement over time
• penetrations and construction joints
Because these systems are buried, repairs are difficult. Therefore, correct installation from the beginning is essential.
Our Approach Using EPRO PreTak
At Surfacing and Waterproofing, we use a system-based approach rather than relying on a single layer.
Our process includes:
• thorough surface preparation
• installation of EPRO PreTak membrane per manufacturer guidelines
• sealing penetrations and transitions
• reinforcement of joints and critical areas
In addition, we focus on detailing, since most failures occur at transitions rather than field areas.
Critical Below-Grade Waterproofing Details
Special attention is given to:
• wall-to-slab transitions
• cold joints and construction joints
• pipe penetrations
• retaining wall interfaces
• changes in elevation or geometry
As a result, proper detailing ensures continuity and long-term performance.
Why EPRO PreTak Is Effective
EPRO PreTak systems perform well in below-grade conditions because they combine:
• flexibility to accommodate movement
• resistance to water pressure
• strong adhesion to concrete
As a result, they help protect basement structures from long-term water intrusion.
Basement Waterproofing Services in Los Angeles
Surfacing and Waterproofing provides basement waterproofing and below-grade waterproofing services throughout:
Bel Air
Pacific Palisades
Beverly Hills
West Hollywood
Malibu
Services include:
• basement waterproofing
• below-grade waterproofing
• foundation waterproofing
• retaining wall waterproofing
• hillside waterproofing systems
Request a Waterproofing Consultation
If you are planning a basement or below-grade project in Bel Air, Pacific Palisades, or Beverly Hills, we can design a system tailored to your project.
Contact Surfacing and Waterproofing (323) 508-4033 for guidance on EPRO waterproofing systems.