Basement Waterproofing Cost in Houston (2026)
Average cost in Houston
US$3,500 — US$11,000
US$4 — US$13 per sq ft
Cost Breakdown
ItemizedSpecialized waterproofing technicians
65%
Sealants, membranes, and vapor barriers
25%
Sump pumps and drainage hardware
5%
City of Houston building permits
5%
Sales Tax at 6.25%
📋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$5,760 — US$8,640
Based on 7 sources and market data for Houston. Actual costs may vary depending on specific project requirements.
🏢Top Waterproofing Contractors in Houston
Verified providersCutting Edge Foundation Repair
2850 S Sam Houston Pkwy E, Houston, TX 77047, USA
196 reviews
Du-West Foundation Repair
510 Pasadena Fwy, Pasadena, TX 77506, USA
111 reviews
Houston Foundation Repair Company LLC
13311 Dunlap St suite f, Houston, TX 77085, USA
122 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
Waterproofing costs roughly 25% more in Houston ($5,445 avg) because basements are rare in Texas, leading to a shortage of specialized contractors and higher demand due to the city's flood-prone climate.
Interior methods average $3,750 and are less invasive, while comprehensive exterior waterproofing, which involves excavation and foundation membranes, averages $8,750 or more.
A professional sump pump installation typically ranges from $800 to $2,500, depending on the pump's horsepower and whether a new basin must be cut into the concrete floor.
Standard waterproofing usually doesn't require a permit, but structural changes or significant electrical work for a sump pump can trigger permit fees ranging from $150 to $500.
📊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.