Maryland's clay-heavy soil, high water tables, and heavy seasonal rains make basement water problems common throughout Montgomery County and the DC metro area. Understanding the causes and solutions can save your home from serious damage.

Signs You Have a Basement Water Problem

Water stains on walls or floors

Musty or moldy odors

Efflorescence (white powder) on walls

Peeling paint or wallpaper

Cracks in walls or floor

Standing water after rain

High humidity levels

Rust stains on carpet or flooring

Common Causes in Maryland

Clay soil: Maryland's clay-heavy soil doesn't drain well, directing water toward foundations
Poor grading: Soil that slopes toward the house instead of away
Clogged gutters: Overflowing gutters dump water at the foundation
Hydrostatic pressure: High water tables push water through foundation cracks
Aging foundations: Older homes in Bethesda, Rockville, and Silver Spring may have deteriorating waterproofing

Waterproofing Solutions & Costs

Interior Sealants

$500-2,000

Best for minor seepage. Seals small cracks and pores in concrete.

Interior Drainage System

$3,000-8,000

French drain around perimeter with sump pump. Effective for most homes.

Exterior Waterproofing

$10,000-25,000

Most comprehensive solution. Excavation and membrane application.

Sump Pump Installation

$1,000-3,000

Essential for homes with water table issues. Battery backup recommended.

Prevention Tips

Ensure soil grades away from foundation (6 inches over 10 feet)

Clean gutters regularly and extend downspouts 6+ feet from house

Install window well covers

Maintain your sump pump and test it regularly

Seal visible cracks in foundation walls

Dealing with a Wet Basement?

Our water remediation experts can diagnose your basement issues and recommend the most cost-effective solution.

Basement Waterproofing Guide for Maryland Homes