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5-Star Reviews

Serving Waukesha, WI since 2008
Waukesha’s housing stock runs the full range, from historic homes near the Fox River to postwar neighborhoods closer to the city center to newer subdivisions on the outer edges of town. The age and construction of the home changes the details, but the underlying conditions are consistent across much of the city. Wisconsin’s freeze-thaw cycles put pressure on foundation walls every winter, and the clay-heavy soil that sits under much of Waukesha County holds water against the structure long after the ground dries out above.
Accurate Basement Repair has been serving Waukesha homeowners since 2008. Our Certified Foundation Specialists handle foundation repair, basement waterproofing, egress window installation, and basement excavation, and every repair is backed by our Guaranteed Solutions for Life™.
Trustworthy Repairs since 2008
3125 E. Allerton Ave.
Milwaukee WI 53235
414-744-6900
Licensed and insured
Prompt service
No sales gimmicks
Clean work areas
The early signs of foundation movement are easy to dismiss. A crack along the mortar joints that looks cosmetic. A door that sticks a little in humid weather. A gap opening up between the wall and the window frame. By the time the foundation wall is visibly bowing, those smaller signs have usually been present for a while.
Accurate Basement Repair’s Certified Foundation Specialists assess what the foundation is actually doing before recommending anything. Depending on what the inspection finds, the repair might involve carbon fiber straps, steel braces, helical piers, or a full wall rebuild. Every repair is backed by our Guaranteed Solutions for Life™.


Water in a Waukesha basement shows up in different ways depending on where it’s coming from. A rust stain below a window well, efflorescence spreading across the block wall, a patch of drywall near the floor that stays soft after rain. These are the signs that water has been moving through the structure, often for longer than the homeowner realizes.
Accurate Basement Repair installs waterproofing systems built around where the water is actually entering. An interior drain tile system captures water at the perimeter before it reaches the floor and routes it to a sump pump. A wall membrane manages seepage coming through the foundation itself. In Wisconsin’s winters, a sump pump discharge line that freezes means the system backs up at the worst possible time, and freeze protection for the discharge line is part of how Accurate Basement Repair builds systems for this climate.
Any basement bedroom in Wisconsin needs an egress window that meets code, and in Waukesha’s older housing stock that usually means cutting into the foundation wall and excavating a window well from scratch. It’s not a small job, but it’s the difference between a finished basement that can legally be used as a bedroom and one that can’t.
Accurate Basement Repair handles the full scope of egress window installation in Waukesha. That starts with the excavation outside, moves through the wall cut and window well installation, and includes the drainage that keeps the well from filling with water. The finished window is sized to meet Wisconsin code requirements and ready for inspection.


A lot of Waukesha homes have basements that are technically functional but too low to finish. Ceiling heights under seven feet don’t meet code for habitable space, which means the square footage sits unused no matter how the rest of the home is laid out. Basement lowering changes that by excavating beneath the existing floor, underpinning the foundation, and pouring a new slab at the right depth.
Accurate Basement Repair handles the full scope of the project in Waukesha, from the initial excavation and foundation underpinning through drainage installation and the concrete pour. Permits and inspections are part of the process, and the finished space is ready for whatever the homeowner plans to do with it.

Choosing a foundation and waterproofing company is the most important decision you’ll make for your home’s structural integrity. Unfortunately, making the wrong choice has costly consequences.
Hiring the wrong foundation company leads to:
Poor and temporary fixes
Water damage that puts your family and home at risk
Spending thousands on recurring repairs
Structural issues that worsen over time
Headache & Worry
You shouldn’t have to worry about being taken advantage of by a contractor. When working with us, you can count on an experience that’s rare in the foundation industry.
Licensed, bonded, and insured
Guaranteed Solutions for Life™
Honest assessments with no sales games
Industry-leading transferrable warranties
No-risk money-back guarantee
Lifetime annual maintenance
Top Rated Company with over 1073 5-Star reviews


Anyone can say they fix it, we guarantee it for life!
Trusted by your neighbors, endorsed by top home inspectors, and approved by structural engineers.
Fair & Honest Pricing
We believe in real, honest, 100% transparent pricing. Not “price matching” gimmicks and marketing tricks like some companies.
No gimmicks
No pushy tactics
Priced with integrity
Built on honesty

Accurate Basement Repair Financing Solutions
Most homeowners don’t expect to deal with water in the basement or cracks in the foundation. But when these problems show up, delaying repairs can make the damage worse—and more expensive.
Simple Process
Fast Approvals
Multiple Financing Options
Today’s Best Rates

Keep your system working at maximum capacity
When you had your waterproofing solution installed, you made a very important decision to protect your property. Just as your automobile needs maintenance and monitoring, so does every waterproofing system.
Protect your home from cracks, settling, and structural damage. Our team specializes in foundation repair solutions designed for Milwaukee’s clay-heavy soil and weather conditions. Services include:
We are local homeowners too. Every solution we provide is designed for Milwaukee’s unique soil and climate conditions. When you work with us, you also get:
Homes in Milwaukee often face issues caused by soil movement, moisture, and heavy rains. Common problems include:
These issues get worse over time if not addressed, so early action is important.
Waukesha, WI Service Area
Community | Neighborhood |
Downtown Waukesha | Historic Downtown, Riverwalk, Main Street, Five Points, Courthouse Square |
West Waukesha | Westgate, Prairie View, Sunset Heights, Fox River Heights, Carroll University |
East Waukesha | East Gate, Waukesha Manor, Meadowbrook, Barstow, Les Paul Parkway |
North Waukesha | Northview, Brookfield Road, Moreland, Pebble Creek, Pewaukee Road |
South Waukesha | South Grand, Madison Street, Maple Avenue, Greenfield Avenue, Big Bend Road |
Pewaukee | Pewaukee Lake, Pewaukee Village, Duplainville, Meadow Springs, Nettesheim Park |
Brookfield | Brookfield Square, Capitol Drive, Bluemound Road, Calhoun Road, Elm Grove |
New Berlin | New Berlin Hills, Moorland Road, Greenfield Avenue, National Avenue, Calhoun |
Mukwonago | Mukwonago Village, Jericho, Wolf Run, Eagle Springs, Mukwonago River |
Delafield | Delafield, Nagawaukee Park, Lapham Peak, Lake Nagawicka, Nashotah |
Waukesha, WI Zip Codes
53186
53187
53188
53189
53072
53122
53146
53150
53151
53153
53103
53119
53149
53118
53029
53045
53005
53066
53008
53046