Basement Waterproofing Cost in Denver (2026)
Average cost in Denver
US$2,096 — US$15,000
US$12 — US$15 per sq ft
Cost Breakdown
ItemizedSkilled waterproofing specialists
40%
Membranes, sealants, and drains
45%
Excavation and debris removal
10%
Denver CPD valuation-based fees
5%
Sales Tax at 2.9%
📋What's Included
ScopeTypically Includes
- Interior drain tile system
- Sump pump installation
- Vapor barrier
- Crack injection sealing
- Labor
Typically Excludes
- Exterior excavation waterproofing
- Foundation repair
- Mold remediation
- Dehumidifier
- Landscaping restoration
Based on interior waterproofing for a standard 800-1,000 sq ft basement.
🧮Estimate Your Cost
InteractiveEstimated Cost
US$6,592 — US$9,888
Based on 8 sources and market data for Denver. Actual costs may vary depending on specific project requirements.
🏢Top Waterproofing Contractors in Denver
Verified providersLiftech Concrete Leveling & Foundation Repair
12870 W Alameda Pkwy, Lakewood, CO 80228, USA
1,129 reviews
Thrasher Foundation Repair
9652 Hanover Ct W, Henderson, CO 80640, USA
700 reviews
The Basement Sanctuary
12650 W 54th Dr Unit A, Arvada, CO 80002, USA
151 reviews
Provider data sourced from public business directories. Ratings and reviews are public and may change. LookupCost is not affiliated with listed providers.
💬What People Actually Paid
Community❓Common Questions
Denver prices are approximately 10% higher than the national average due to the region's expansive clay soils, which require more intensive labor and specialized drainage solutions to manage hydrostatic pressure.
Heavy spring snowmelt and rapid freeze-thaw cycles in Colorado cause significant groundwater buildup. This often necessitates the installation of high-capacity sump pumps, which average $858 to $1,204 in the Denver metro area.
Yes, any work involving foundation alterations, major excavation, or new drainage systems requires a permit from the Denver Community Planning & Development Department. Fees typically range from $100 to $500 depending on the project's total valuation.
Interior solutions, such as sealants and drainage tracks, average around $3,000. Exterior waterproofing, which involves full excavation to the footings, is significantly more expensive, often ranging from $7,000 to over $15,000.
📊Our Methodology
How we collect dataAggregated from 5+ verified web sources and cost databases
Licensed contractor estimates and regional cost guides
Government construction and labor statistics
Community-reported project costs and reviews
Last data collection: today. Updates run weekly. All costs in USD.