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Basement Waterproofing Cost in Grafton, WI
Detailed pricing guide with local market adjustments and material comparisons
Grafton Average
$1,700–$8,500
Market Tier
Small City
Cost Breakdown
Basement Waterproofing Cost in Grafton
Small CityLowAverageHigh
$1,700$5,100$8,500
Market Tier
Small City (0.85x)
Small city with below-average costs
Material Cost Comparison
Interior drainage channel(Budget)
$1,275–$6,375Waterproofing membrane(Mid-Range)
$1,700–$8,500Sump pump and basin(Premium)
$2,380–$11,900Factors that affect your cost
- Interior vs exterior waterproofing
- Linear footage of affected walls
- Sump pump installation included
- French drain installation
- Foundation crack repair needed
- Exterior excavation required
- Dehumidifier addition
Get Quotes in Grafton
GSI General Inc.
Milwaukee, WI
(414) 264-4548
JK Contractors
Milwaukee, WI
(414) 333-5991
Wisconsin Contractors LLC
Milwaukee, WI
(262) 788-4069Founding Member
Premium spot in Grafton
Ambassador
Lead the Grafton community
Founding Member
Premium spot in Grafton
Grafton Housing Market
Median Home Price
$659,999
Homes for Sale
23
Price per Sq Ft
$292
Local Pros
457
Home Service Professionals Near Grafton
multimedia_specialist 71Painters 63Landscapers 60title 56Flooring 53Contractors 53Electricians 52Roofers 49
Median Household Income
$88,634
Median Home Value
$301,300
Median Rent
$1,162/mo
Homeownership Rate
63.2%
Population
12,274
Median Year Built
1986
Source: U.S. Census Bureau, ACS 2023 5-Year Estimates
Track Your Costs
Renovation
Basement Waterproofing
Date
April 2026
Cost
$5,100
Vendor
Your local pro
Warranty
25-year material warranty
Grafton average: $1,700–$8,500
Before
Issue documented with photos
After
Repair completed, area sealed
Materials Used
Interior drainage channelWaterproofing membraneSump pump and basinHydraulic cement
Warranty Details
25-year material warranty
Auto-Checkup Created
"Basement Moisture Check" — every 12 months
Added by youApril 2026
Property Health Score
Good
82
foundation category +15 pts(67 → 82)
Documentation19/25
Maintenance20/25
Warranty22/25
Investment21/25
Your health score is calculated based on documentation completeness, maintenance currency, warranty coverage, and investment tracking.
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I found 53 contractors in your area. Here are the top results:
SM
Smith & Sons
Connectedcontractor
4.9(47)
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JR
J&R Home Services
contractor
4.7(23)
From $95/hr
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Date:2026-04-09
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Cost FAQ
What is the average cost of basement waterproofing in Grafton?
The average cost of basement waterproofing in Grafton, WI ranges from $1,700 to $8,500. The final price depends on Interior vs exterior waterproofing, Linear footage of affected walls, Sump pump installation included.
What factors affect basement waterproofing cost?
Key factors include: Interior vs exterior waterproofing, Linear footage of affected walls, Sump pump installation included, French drain installation, Foundation crack repair needed, Exterior excavation required, Dehumidifier addition. In Grafton, local labor rates and material availability also influence pricing.
How do I get accurate quotes for basement waterproofing in Grafton?
Get at least 3 quotes from licensed professionals in Grafton. Use Fizbo SmartSearch to find and compare local contractors, read reviews, and request estimates — all in one place.