Licensed, Bonded & Insured in Wisconsin Serving Waukesha County & Greater Milwaukee
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Exterior Waterproofing in West Allis, WI

A leaking West Allis basement stopped at the source - we dig to the footing and seal your aging wall from the outside so water never reaches the inside. Free inspection, lifetime transferable warranty.

Call +1 (414) 587-3093
Local & Family-Owned

Exterior waterproofing West Allis homeowners actually trust

When a basement wall keeps letting water in, the leak is coming from the outside, so that is where the real fix belongs. Exterior waterproofing seals the wall on its outer face and drains the water away at the footing, which stops it before it reaches your West Allis basement. It is the most thorough way to keep a basement dry, and it is the right call for a chronic leak or a finished space you want to protect.

West Allis is a dense older streetcar suburb, and most of its homes date from the early 1900s through the mid-century. A lot of those houses sit on aging block or brick-and-stone foundations that have held water for decades. The clay soil under the city holds moisture and swells in spring, and that swelling presses on the old walls. When the snow melts and heavy rain arrives, a lot of these basements take on water at the cove joint and through cracks in the block.

We are based at 2128 Easy St in Waukesha, and Nick, Luis, and our own crew have been sealing walls like these since 1998. We serve West Allis every week. During a free inspection we find where the water is really getting in, dig along that wall, seal the aging block from the outside, and drain it, then back the work with a lifetime transferable warranty. One older home we sealed had fought a wet wall for years, and the basement stayed bone-dry through the next spring thaw.

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Exterior waterproofing methods for West Allis, WI homes - Basement Foundation Repair
How We Waterproof It in West Allis

Proven exterior waterproofing built for West Allis

Excavation down to the footing

We dig carefully along the leaking wall to expose it top to bottom, all the way to the footing, so the full face of the aging block can be sealed. In a tight West Allis yard this is slow, deliberate work.

Liquid waterproof membrane

After cleaning the wall and patching cracks with hydraulic cement, we coat the whole surface with a thick elastomeric membrane that seals out the water for good.

Dimple board + weeping tile drainage

A dimpled drainage board gives water an air gap to fall down, and perforated weeping tile at the footing collects it and carries it away from your home.

Washed gravel backfill & regrading

Clean washed gravel wraps the weeping tile for fast drainage, then we backfill the soil and re-grade so the surface slopes water away from the foundation.

Warning Signs

Signs you need exterior waterproofing in West Allis

  • Water seeping into the basement after heavy rain or the spring thaw
  • White chalky efflorescence on the old block where water pushes through
  • A musty, damp smell that never quite leaves the basement
  • Paint peeling or bubbling off an old foundation wall
  • Water pooling against the foundation outside after a storm
  • A chronic leak in an older West Allis basement that interior patches never solved
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Why West Allis Chooses Us

Exterior waterproofing built for older West Allis homes

  • Our own crew does the digging. Every step, from the first shovel to the final grade, is handled by our trained, background-checked team, and Nick and Luis are on-site with them.
  • We know West Allis clay and old block walls. The soil here holds water and swells in spring, and the early-1900s to mid-century foundations around the city leak in their own ways. We seal for what your wall actually is.
  • Lifetime transferable warranty. If water ever comes back through that wall, we return at no cost, and the warranty carries to the next owner when you sell.
  • Honest, written quotes. Free inspection, a clear price on paper, and West Allis neighbors who send us their friends for exactly that reason.
Lifetime

Backed by a lifetime transferable warranty

We don't just waterproof your West Allis basement, we stand behind it. If water ever finds its way back through that wall, we come back and make it right at no cost, and the warranty transfers to the next owner.

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Real Results

What your West Allis neighbors say

★★★★★

They replaced our drain tile, put in a sump pump, set steel beams, and sealed the basement walls - then redid the window wells and buried a downspout outside. The price was competitive and Nick, Luis and the crew explained everything as they went.

Barb Ahrens
Barb Ahrens
Verified Google review
★★★★★

What an amazing job. There aren't enough words to say how much we appreciate Nick, Luis and the crew. The work was beautiful and they left the job site perfect. Thank you so much!

Ken Noffke
Ken Noffke
Verified Google review
Find Us in West Allis

Your local exterior waterproofing team

Basement Foundation Repair, LLC

2128 Easy St
Waukesha, WI 53188

We work out of our shop in Waukesha and run into West Allis every week, so your dig is handled by a local crew that knows the older homes and tight lots around this city.

Phone: +1 (414) 587-3093

Hours: Mon–Fri 7am–7pm · Sat 8am–4pm

Call +1 (414) 587-3093
More In West Allis

Other basement services we offer in West Allis

See everything we do in West Allis
Nearby

Exterior waterproofing near West Allis

We waterproof basements across Waukesha County and Greater Milwaukee. If you're just outside the city, we serve your community too:

Wauwatosa, WIGreenfield, WINew Berlin, WIElm Grove, WIAll 14 areas
Questions, Answered

West Allis exterior waterproofing FAQs

Yes. Older block and brick-and-stone walls are exactly what exterior waterproofing is built for. We dig to the footing, clean the aging wall, patch the cracks and joints, and seal the whole face so water stops on the outside. Age is not a problem, and we see homes like yours all over West Allis.
The clay soil under West Allis holds water and swells when the snow melts and spring rain arrives. That saturated soil presses on your foundation and the water finds its way through the block. Sealing the wall from the outside and draining it at the footing takes that pressure off, so the spring melt drains away from the foundation and the basement stays dry.
Usually yes. West Allis lots are narrow, and our crew works in tight side yards all the time with smaller equipment and careful hand digging along the wall. At the free inspection we look at the access and tell you straight whether exterior is the right call or an interior system fits your lot better.
That is the whole point. Sealing the outside of the wall and adding weeping tile at the footing means the snowmelt that saturates West Allis clay every spring drains away before it can push through the aging block. Homeowners here stay bone-dry the first spring after we seal the outside.
Both keep a basement dry, and the right one depends on your home. Exterior waterproofing stops water at the wall and is the most thorough fix, which is worth it for a finished basement or a chronic leak in an older West Allis foundation. Interior drain tile is less invasive and easier on the budget. We give you an honest recommendation at the free inspection.
Usually yes. Interior sealers and patches cover the inside of the wall, so water can keep soaking the old block from the outside and find a new way in. Exterior waterproofing seals the wall face and drains the water away at the footing, which is why it holds when inside fixes have failed.
It depends on how long the wall is, how deep the footing sits, and how easy it is to get equipment into a tight West Allis yard. Because it involves excavation it costs more than an interior system, and you get an honest written quote after a free in-home inspection, with no guessing over the phone.
Free, No-Pressure Inspection

Wet wall in your West Allis basement?

Don't wait for the next big rain or spring thaw. Talk to a real member of our family team today - we'll inspect your West Allis basement, find where the water is getting in, and give you an honest, written quote at no cost.

Call +1 (414) 587-3093

Same-week appointments  ·  Financing available  ·  Lifetime transferable warranty

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