Looking for a Local Experts for Waterproofing & Home Repair?

We are Keeping Homes Healthy & Dry Since 1888

Call us for a Free Consultation at 314-352-2080

Let’s diagnose your problem together.

Basement Waterproofing

The most effective waterproofing services completed by workers you can trust.

Foundation Repair

Reliable solutions to repair foundation cracks and tuckpointing.

Exterior Drain Systems

Our exterior drain systems are engineered to get and keep water out.

About Certified Waterproofing Inc.

Our company began in 1888 as Lorry Ulsas Tuckpointing then in 1962 the third generation and present owner Robert Austin changed the name to Certified Waterproofing & Tuckpointing. Specializing in basement waterproofing, foundation work and tuckpointing. Cerified is the expert in older St. Louis and historical homes and has an A+ rating with the Better Business Bureau.

Fast diagnose. Fast process. So easy.

Get a quote or give us a call.

We Listen

We start process with your goals. We want to learn more about your situation and what you want to accomplish.

We Design

Our team bring years of expertise and the attention to detail necessary to get your project done right.

We Deliver

What we promise, we provide. You can trust Certified Waterproofing, because we keep your best interests in mind.

Our Additional Services

Home Repair

We do entire home or  chimney repair, build retaining/decorative stack-o-stone walls.


We do tuckpoints and seals both inside and outside of old stone or brick walls.

Glass Block Windows

We furnish and install glass block basement windows for security and an air tight seal.

How We Help People

With serious savings, a seamless support, and unique community benefits, our clients have a lot to say about our services!

Certified removed the brick chimney from our home which had deteriorated and moved due to many years of neglect by the previous owner and was beginning to fall. They rebuilt and tuckpointed the chimney solid and we have never had a problem with water entering the chimney again.

The Murphy family St. Louis

Certified performed a flood clean up, discarding ruined carpeting and drywall then installed a basement drain tile system and sump pump at my home back in 2015. My basement was dry as a bone through the recent flooding in the St. Louis area.

Eileen O. St. Louis

Certified has worked for me and my family over the past 30 years. They have waterproofed my basement, tuckpointed the house, installed gutter system among many other various painting and repair project. Certified truly is one company that does it all. I have recommended them to many neighbors, friends and family.

Elizabeth M. St. Louis

Still Have Some Questions Left? Call us for a Free Consultation at 314-352-2080