Below-Grade Waterproofing
Plaza Deck Systems
TPO Roofing
EPDM Roofing
Electronic Leak Detection
Injection Grouting
Sealants & Joints
Balcony Coatings
Thermal Imaging
Leak Investigation
Below-Grade Waterproofing
Plaza Deck Systems
TPO Roofing
EPDM Roofing
Electronic Leak Detection
Injection Grouting
Sealants & Joints
Balcony Coatings
Thermal Imaging
Leak Investigation
Waterproofing Division

Commercial Waterproofing Built to Last Decades

Manufacturer-authorized systems, electronic leak detection, and a warranty program that outlasts the competition — protecting your building envelope from below grade to rooftop.

150+
Systems Installed
25yr
Warranty Programs
4
Mfr Authorizations
0
Active Claims
Services

Waterproofing Services

Every service backed by Truett's vertical integration, meticulous documentation, and a team that treats your project like our own.

Below-Grade Waterproofing
Pre-applied HDPE/LLDPE sheets for blind-side applications, post-applied fluid membranes, crystalline systems, and drainage composite — protecting foundations from hydrostatic pressure.
Plaza & Deck Systems
Hot-applied rubberized asphalt, cold-applied liquids, and traffic-bearing coatings for occupied pedestrian decks, parking structures, and exterior walkways under load.
Commercial Roofing
TPO, EPDM, modified bitumen, and built-up roofing by manufacturer-certified crews. 15, 20, and 25-year NDL warranty programs from SOPREMA, Carlisle, and W.R. Grace.
Electronic Leak Detection
Low-voltage vector mapping and high-voltage spark testing on every installed membrane. Thermal infrared scanning for existing roof moisture mapping. ELD is standard — not an upsell.
Injection Grouting
Polyurethane foam and epoxy injection for active leaks in parking garages, elevator pits, tunnels, and below-grade walls — stopping water at the source, not the stain.
Waterproofing Remediation
Forensic investigation with core samples, ELD, and thermal scanning to identify the actual failure mode — written report before any repair scope is written.

Ready to Start Your Project?

Tell us your scope. We'll deliver a detailed estimate and preliminary schedule within 48 hours.

Get Free Estimate Call (540) 825-6006
The Difference

Why Truett for Waterproofing

01

Manufacturer Authorizations

SOPREMA, Carlisle, W.R. Grace, and BASF authorizations mean manufacturer field reps inspect our work and you receive the highest warranty tier available.

02

ELD Standard on Every Job

Electronic leak detection is standard on every Truett waterproofing project. We prove the membrane works before covering it — then document it.

03

Forensic First Approach

We don't apply new membrane over failed conditions. Every remediation starts with a written investigation identifying the actual failure mode.

04

Zero Active Warranty Claims

Our warranty programs are backed by manufacturer NDL coverage plus Truett labor warranty. Annual inspections maintain coverage. Zero active claims since inception.

Manufacturer Authorizations

Truett Standard

ELD Standard on Every Job

Truett Standard

Forensic First Approach

Truett Standard

Zero Active Warranty Claims

Truett Standard
How We Work

Our Waterproofing Process

Disciplined planning and documented execution — from first call to final handoff.

01
Assessment
Thermal imaging, ELD, and core samples identify all failure modes before scope is written.
02
System Selection
Driven by structure type, substrate, loading, drainage, and warranty goals — not inventory.
03
Substrate Prep
Grinding, cleaning, priming, and repair documented with photos before membrane application.
04
Installation
Manufacturer-certified crews. Third-party QA at critical stages. ELD spark test before protection course.
05
Flood Test & Warranty
ASTM D5957 flood test + ELD verification. Full documentation package at substantial completion.
Client Stories

What Clients Say

"We'd had three contractors try to fix our parking deck. Truett was the first to run ELD before and after, flood test the repairs, and give us a warranty worth keeping. Two years later — bone dry."

Gregory Shah

VP of Asset Management, Commercial REIT

Northern Virginia

"The investigation report alone was worth the engagement. They found a flashing failure three contractors missed. One repair, no more water. Done."

Paul Gentry

Director of Facilities, Class A Office Owner

DC Metro

Explore More Divisions

General Contracting Civil Construction Demolition

Waterproofing Built on Truett Standards

One call. Complete accountability. From first estimate to final handoff — Truett delivers.

Start Your Project (540) 825-6006