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Basement Waterproofing Cost in Graham, WA
Detailed pricing guide with local market adjustments and material comparisons
Graham Average
$1,700–$8,500
Market Tier
Small City
Cost Breakdown
Basement Waterproofing Cost in Graham
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 Graham
Graham Housing Market
Median Home Price
$619,000
Homes for Sale
39
Price per Sq Ft
$330
Local Pros
560
Home Service Professionals Near Graham
multimedia_specialist 90lender 79Flooring 75Inspectors 69Cleaners 65Painters 63Landscapers 60Roofers 59
Median Household Income
$115,501
Median Home Value
$472,800
Median Rent
$2,172/mo
Homeownership Rate
81.8%
Population
35,090
Median Year Built
2000
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
Graham 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
80
foundation category +15 pts(65 → 80)
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 several contractors in your area. Here are the top results:
SM
Smith & Sons
Connectedcontractor
4.9(47)
BookQuote
JR
J&R Home Services
contractor
4.7(23)
From $95/hr
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Title:contractor
Category:contractor
Date:2026-04-04
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Cost FAQ
What is the average cost of basement waterproofing in Graham?
The average cost of basement waterproofing in Graham, WA 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 Graham, local labor rates and material availability also influence pricing.
How do I get accurate quotes for basement waterproofing in Graham?
Get at least 3 quotes from licensed professionals in Graham. Use Fizbo SmartSearch to find and compare local contractors, read reviews, and request estimates — all in one place.