Advanced Waterproofing

06/02/2026

Laying pipe for are basement drain system

05/30/2026

The storm drain system has been upgraded from a perforated pipe, which allowed water to drain next to the foundation wall, to a 3-inch solid pipe, which has allowed the water to now drain down over the hillside

05/23/2026

05/23/2026

This is a before and after of an exterior Crawl Space access installation

05/23/2026

Do you find it inconvenient when contractors frequently enter your home to access the Crawl Space? Advanced Waterproofing can provide a solution with a new exterior access installation.

05/22/2026

Post replacement from the house they had a lot of water intrusion

05/21/2026

Do you have any waterproofing concerns?!

If so, give Advanced Waterproofing a call! ☎️

Now that the weather is nicer and more dry days are ahead of us, don’t wait, now is the time to get all your home waterproofing needs taken care of. ☀️

So when fall/winter rolls back around and the consistent rain is back your home will be covered and you won’t be dealing with any flooding in, under, and around your home. 🏠

We are your local waterproofing experts and have been proudly serving all residents of Cowlitz and surrounding Counties!!

Let us serve you today! 💧

05/11/2026

Large-Scale Commercial Foundation Sealing Project

05/11/2026

Sealing a foundation wall

04/25/2026

On Sunday at 8:30 PM, I received a notification regarding a flooded residence. I responded immediately and arrived at the scene. Fortunately, we were able to assist the homeowner and prevent a significant issue, thereby minimizing the damage.