Skip to content

Waterproofing & Coatings

8%
Concrete foundation stem walls and footings on an active construction site
Waterproofing Service

Foundation Waterproofing

Protecting the structure everything sits on

(209) 895-0406
Free Estimates
Bay Area Local
Leak Detection
Overview

What foundation waterproofing actually involves

Water reaching a foundation does slow, expensive damage — corroding reinforcement, eroding mortar joints, and moving moisture into the framing above. Foundation waterproofing seals stem walls, footings, and slab edges, and pairs that membrane with drainage that carries water away from the building. On new construction we install before backfill; on existing structures we excavate, repair, and rebuild the assembly properly.

Every project starts the same way: we look at the property, establish what water is doing and where it is entering, and only then specify a system. That order matters — a correctly installed product solving the wrong problem still leaves you with a wet building.

What's Included

Included in every foundation waterproofing project

  • New construction and retrofit foundation systems
  • Stem wall, footing, and slab edge treatment
  • Concrete crack and honeycomb repair before sealing
  • Perimeter footing drain installation and repair
  • Drainage board and filter fabric layers
  • Grade correction to move water away from the building
Our Process

Four steps from first call to sign-off

01

Foundation Inspection

We evaluate the foundation, existing drainage, and soil conditions around the entire perimeter.

02

Excavate & Repair

Where needed we excavate to footing depth and repair cracks and voids in the concrete.

03

Membrane & Drainage

Membrane, protection board, and perimeter drain are installed as one connected system.

04

Backfill & Grade

We backfill in lifts and regrade so surface water is directed away from the structure.

Why It Matters

The difference a properly built assembly makes

Waterproofing is buried work. Once the backfill, topping slab, or tile goes over it, nobody sees the detailing again — which is exactly why the details have to be right the first time.

Diagnosed First

We confirm where water is genuinely entering before specifying anything, so the work targets a cause rather than a symptom.

Matched to Conditions

Substrate, exposure, and water pressure decide the system. The same product is not right for every property.

Prepared Properly

Profiled, cleaned, moisture-tested surfaces. Preparation is where most failed waterproofing jobs actually went wrong.

Tested & Documented

Flood tests, electronic detection, and photo records so you have proof the assembly performs before it is covered up.

Our Standard

Detail-driven from start to finish

Durable waterproofing comes from disciplined habits, not premium product names. Here is the standard we hold ourselves to on every project.

A Written Scope

You get the system, the sequence, and the expected result in writing before work begins.

Substrate Preparation

Grinding, profiling, and repair to a sound surface — never a coating applied over unsound concrete.

Reinforced Detailing

Corners, drains, penetrations, and joints get reinforcement, because that is where assemblies fail.

Site Protection

Landscaping, hardscape, finishes, and adjacent surfaces are protected for the length of the project.

Verification Before Close-Out

Testing under real conditions, then a walkthrough so nothing gets buried on assumption.

FAQ

Questions, answered

Ready When You Are

Get a free estimate for foundation waterproofing

Share a few details about the property and we will come back with clear next steps — usually the same business day.

(209) 895-0406