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Basement Sealing

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What is Basement Sealing?

Basement sealing protects below-grade spaces by blocking groundwater infiltration and sealing leaks in walls, joints, and penetrations. Using trenchless polymer injection, watertight barriers are created inside or outside basement walls to prevent damage and maintain a dry, stable environment.

Problems Solved

  • Groundwater infiltration through walls, joints, or cracks
  • Moisture intrusion leading to mold, odors, and property damage
  • Soil erosion around foundations weakening basement walls
  • Settlement caused by water migration beneath slabs
  • Costly disruptions from recurring leaks and water damage

Types of Polymers Used

High-Density Polyurethane Foams

  • Expands to densify and stabilize loose backfill soils
  • Provides lightweight reinforcement without added soil pressure
  • Cures rapidly to minimize operational disruption

Structural Polyurethane Resins

  • Creates rigid reinforcement zones behind walls and utilities
  • Transfers structural loads to stable ground layers
  • Extends service life of supported structures

Hydro-Insensitive Polymers

  • Expands and cures in wet or groundwater conditions
  • Seals voids and prevents erosion in saturated soils
  • Provides long-term durability in challenging sites
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Benefits of Basement Sealing

Basement sealing with polymer injection provides watertight protection without major excavation. These solutions stop groundwater infiltration, protect against property damage, and extend the life of below-grade spaces.

Reliable Leak Protection for Below-Grade Structures

  • Prevents groundwater infiltration and property damage
  • Creates long-lasting watertight seals in basements
  • Requires no excavation or major surface disruption
  • Restores safety, durability, and comfort in below-grade areas

Key Applications

Residential Basements

Stops leaks and prevents property damage in homes

Commercial Basements

Protects below-grade spaces in office and retail facilities

Utility Rooms

Seals penetrations and prevents groundwater intrusion in vaults

Storage Facilities

Keeps stored goods dry and safe from infiltration damage

Parking Garages

Provides watertight protection in underground structures

Public Buildings

Protects schools, hospitals, and municipal basements from leaks

Services

Basement sealing is supported by these services:

Waterproofing & Leak Sealing

Waterproofing & Leak Sealing

Creates watertight barriers to stop infiltration

Crack Repair

Crack Repair

Seals foundation cracks that allow groundwater entry

Soil Stabilization

Soil Stabilization

Reinforces soils around basement walls and slabs

Void Filling

Void Filling

Eliminates cavities contributing to leaks and instability

Structural Reinforcement

Structural Reinforcement

Provides long-term durability in compromised walls

Curtain Grouting

Curtain Grouting

Blocks groundwater migration and restores watertight protection

How the Process Works

1

Investigation

Basements inspected for cracks, leaks, and infiltration points

2

Planning

Injection design tailored to wall, joint, and soil conditions

3

Access

Small-diameter injection ports installed with minimal disruption

4

Injection

Expanding polymers seal leaks and stabilize soils around basements

5

Monitoring

Placement tracked in real time to ensure complete water tightness

6

Validation

Final inspection confirms long-term leak protection

Get Started with Expert Support

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