Welcome to TLS Laboratories - Your Window Experts
TLS News
August 28, 2008
Rainy Season Arrives in the West

With rain arriving the the West, TLS Labs stands ready to help builders and homeowners detect and eliminate leaks.

Need Help?
For more information on how we can solve your water intrusion problems, please call us at 800.310.7673 or drop us a line.

TLS Labs article featured in JLC Magazine

We are proud to have an article in the June 2007 Journal of Light Construction magazine. You can view it on the web at JLCOnline.com or download a PDF version.
New GS Flex Products available from TLS Labs

We're proud to introduce a new Corner Flash™ line called GS Flex. These new corner flashing pieces are constructed using high-grade flexible PVC. Our state-of-the-art injection molding process creates a high quality product that saves you money. Read more about GS Flex™ | View installation video

Proudly made in the U.S.A.


See all of our products in our online catalog.
Industry Update

TLS Labs' signature product Corner Flash™ has joined the Fortifiber family of products.

Fortifiber has officially endorsed Corner Flash™ as their approved method for recessed window flashing.

View their installation guide (pdf):
A Guide For Installing Recessed Window Flashing

About TLS Labs

Our firm helps homebuilders, architects and homeowners prevent and manage water intrusion issues. We provide expert advice utilizing industry best practices in product selection, installation methods, and installer training.

What We Do
  • Destructive investigation and water testing of homes and commercial properties to identify and solve water intrusion problems
  • Work with window and door manufacturers to develop products that keep water out of homes
  • Testing existing methods and materials used by builders to determine their performance characteristics
  • Assist clients with product selection
  • Develop effective window and door installation methods
  • Training window installers
  • Conducting 3rd party inspections of window and door installations

Experience, Honesty and Professionalism

No other organization has the real world experience of the TLS Laboratories team. We have diagnosed and solved more leaks, in more different types of buildings than any other organization that we are aware of.

We believe in the old adage "honesty is the best policy". As our existing clients can attest, we always deliver a concise and professional evaluation of each project. Whether on site for a large home builder, working at a private residence, or providing professional witness services to the legal community, you can depend on us.

Inspection Services, Products and Training Solutions

Purpose-built flashing products like this "GS Flex" Corner Flash™ piece have been developed exclusively by TLS Labs. Learn More
TLS Labs provides in-field forensic leak detection for commercial and residential buildings. We are experts in leak detection during the course of construction or in owner occupied homes.

We even have own patented flashing system called Corner Flash™. It is a three dimensional flashing product that takes the guesswork out of flashing recessed or inset windows. Corner Flash™ and our method of installation have been thoroughly tested and proven to effectively flash recessed windows.

Additionally, TLS Labs offers the industry leading Synergy Project to train and certify builders using our techniques. The Synergy Project is a program designed to train contractors and their employees to properly install windows and doors. Using our products and time-tested installation methods builders can deliver homes with a flashing system that eliminates rain related leaks.


What are people saying about us?
TLS Laboratories recently helped Centex Homes resolve a large scale window flashing issue at one of our communities. His expert knowledge of windows and flashing systems identified the problem and they assisted in designing a repair that could be implemented with minimum impact on our homeowners. They are reliable, professional and service oriented. I am pleased to offer them a recommendation.
- Shawn Reed
Vice President, Construction Operations
Centex Homes
View All Testimonials...