
Basement Waterproofing & Foundation Repair in Thiensville, WI
Thiensville Basements, Old and New, Kept Dry.
Thiensville's historic homes near the Milwaukee River and its newer neighborhoods each have their own basement challenges. Basement Specialists handles both.
- Since 1981Locally owned & operated
- Free EstimatesWritten & no-pressure
- Warranty BackedUp to 20 years
- Licensed & InsuredFully bonded
- 4.7 Stars on GoogleFrom local homeowners
Serving Thiensville Since 1981
A River Village With Every Kind of Foundation
Thiensville is a small village with a long history. Homes near its old downtown and along the Milwaukee River include some of the oldest in the area, many with stone or brick foundations, while surrounding neighborhoods were built in the decades after World War II.
Being close to the river means groundwater can rise quickly after heavy rain and spring thaw. Older stone foundations let water seep through softened mortar, and mid-century homes often have drain tile that's past its prime.
No matter how old your home is, we'll find what's causing the problem and give you a straight answer and a written estimate.

What We See in Thiensville
Common Basement Problems in Thiensville Homes

Older stone and brick walls let water seep through softened mortar.

Homes near the river can see groundwater rise quickly after storms.

Efflorescence shows water moving through the foundation.
Our Services in Thiensville
How We Help Thiensville Homeowners
Wall LeaksLeaking Walls
Older Thiensville stone foundations usually need drainage plus repointing the worst mortar joints.
Poured walls in newer homes get crack injection from inside.
We'll show you exactly where the water is getting through and explain why we're recommending one repair over another, so there are no surprises on your Thiensville project.
Wall Leak Repair
WaterproofingInterior Drain Tile & Sump Systems
New interior drain tile and a sump give river-area groundwater a dependable way out.
It works in both historic and mid-century basements.
When the work is done, the trench is patched with fresh concrete and the basement is cleaned up, so you can get back to using the space. It's one of the most dependable ways to keep a Thiensville basement dry year after year.
Drain Tile Details
Sump PumpsSump Pumps & Battery Backups
Homes near the river need pumps that can keep up. We install properly sized pumps with battery backups.
We route the discharge well away from your foundation.
We test the system before we leave and walk you through how it works, so you know your Thiensville basement is protected the next time a storm rolls through.
Sump Pump Details
Bowing WallsBowing Wall Bracing
Older block and stone walls can bulge or lean after decades of pressure. We stabilize them with bracing and repair.
We measure first, so you know exactly what the wall needs.
Caught early, a moving wall is a straightforward fix. Waiting usually means a bigger repair, which is why we recommend having any leaning wall in your Thiensville home measured sooner rather than later.
Bowing Wall RepairSeeing Water or Cracks in Your Thiensville Basement?
We'll come out, find the cause and give you a free written estimate.

Warning Signs
When to Call Us in Thiensville
In Thiensville, older homes and river ground make these signs common.
- Damp stone or brick walls
- Crumbling or sandy mortar
- White crust on walls
- Water after heavy rain
- Seepage at the floor edge
- A sump that runs constantly
- Musty smell downstairs
- Walls bulging in spots
What to Expect
How It Works in Thiensville
- 1Call or Request an EstimateTell us what you're seeing and we'll set up a time.
- 2We Find the CauseWe inspect inside and outside to see what's really going on.
- 3You Get It in WritingA clear explanation and a written estimate.
- 4We Fix It RightOur crew completes the work and cleans up.

Thiensville Questions
Thiensville Basement FAQs
Can an old stone foundation be kept dry?
Yes. Drainage combined with repointing makes a big difference in older stone basements.
Does being near the river matter?
Homes near the Milwaukee River often see higher groundwater after storms and spring thaw.
Do you work on historic homes?
Yes. We work on homes of every age, including some of the oldest in the area.
What's the white powder on my walls?
Efflorescence, left behind as water evaporates out of the wall.
Do I need a battery backup?
If your pump runs often, yes.
Do you offer free estimates in Thiensville?
Yes. Call 414-425-0600 to schedule.
What Homeowners Say
Trusted by Milwaukee-Area Homeowners
“We had Basement Specialists do foundation work for us, they were affordable, completed the work in a timely manner, and did a great job at cleanup. We even had some extra work done around the porch foundation which was reasonable and looks great. We would highly recommend them!!”
“We have used Basement Specialists a couple of times. They have been simply wonderful to work with. To start with, the office is responsive, and they were easy to schedule with. Dale showed up promptly…”
“Just had them do foundation work for us. They did a good job, they did put runners down. Even put some on the basement steps, even after I told them they didn't have to…”
Nearby Communities
We Also Serve Near Thiensville
Thiensville Homeowners
Let's Keep Your Basement Dry.
We'll find the cause and give you a free written estimate.
