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Basement Waterproofing Cost in Kelso, WA
Detailed pricing guide with local market adjustments and material comparisons
Kelso Average
$1,700–$8,500
Market Tier
Small City
Cost Breakdown
Basement Waterproofing Cost in Kelso
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 Kelso
Kelso Housing Market
Median Home Price
$419,900
Homes for Sale
26
Price per Sq Ft
$272
Local Pros
584
Home Service Professionals Near Kelso
Agents 96Landscapers 74lender 73Flooring 73Painters 72Inspectors 67HVAC Techs 65multimedia_specialist 64
Median Household Income
$59,462
Median Home Value
$302,300
Median Rent
$1,131/mo
Homeownership Rate
54.8%
Population
12,697
Median Year Built
1961
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
Kelso 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
83
foundation category +15 pts(68 → 83)
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)
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JR
J&R Home Services
contractor
4.7(23)
From $95/hr
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Category:contractor
Date:2026-04-08
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Cost FAQ
What is the average cost of basement waterproofing in Kelso?
The average cost of basement waterproofing in Kelso, 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 Kelso, local labor rates and material availability also influence pricing.
How do I get accurate quotes for basement waterproofing in Kelso?
Get at least 3 quotes from licensed professionals in Kelso. Use Fizbo SmartSearch to find and compare local contractors, read reviews, and request estimates — all in one place.