Resin Injection Water Sealing Service

Water ingress problems? Damp basements? Leaking concrete? We specialise in fast and effective water sealing using expanding polyurethane resin that creates permanent waterproof barriers without excavation, stopping water penetration and protecting your property.


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Affordable quotes guaranteed
50 year warranty

Why Water Sealing is Needed

Soil Erosion

Water infiltration through concrete and foundations can wash away supporting soil, creating voids and structural problems.

Decomposing Organic Matter

Moisture penetration accelerates organic material decomposition beneath structures, weakening ground support over time.

Damaged or Collapsed Drains

Broken drainage systems allow water to seep into foundations, basements, and underground structures causing persistent dampness.

Historical Mining

Historical mining activity creates fractures and pathways that allow groundwater to enter buildings and underground spaces.

Frost Heave Damage

Water penetration into concrete freezes and expands, creating cracks and pathways for further water ingress.

Construction Vibration

Heavy machinery or nearby construction work can create micro-cracks in concrete that allow water penetration.

Settlement of Made Ground

Ground settlement creates gaps and cracks in concrete structures that provide pathways for water ingress.

Poor Construction

Poor construction joints, honeycomb concrete, or inadequate waterproofing allow water to penetrate structures.

Subsurface Decomposition

Underground water movement through porous soil and rock creates hydrostatic pressure that forces water through concrete.

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Head office

Shelton Street, Covent Garden
London, WC2H

Contact

help@resininjections.co.uk

Open Hours

Monday-Friday: 8am – 6pm

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Signs You Need Water Sealing

If you’ve noticed any of these warning signs, water sealing could prevent extensive damage and protect your property investment.

Hollow Wall Sound

Concrete or walls that sound hollow when tapped, indicating water damage or delamination beneath the surface.

Sinking or Settling Structures

Foundations or floors affected by water-induced soil erosion, causing noticeable dropping or unevenness.

Cracks in Concrete

Especially cracks that show signs of water staining, efflorescence, or continue to allow water through.

Gaps at Building Edges

Visible spaces between structural elements where water can enter, often showing signs of moisture or staining.

Uneven Floor Levels

Floors damaged by water ingress or undermining, developing slopes or height differences throughout.

Drainage Issues

Persistent dampness, standing water in basements, or active water ingress during rainfall indicating sealing failure.

Why Choose Resin Injection for Water Sealing

Fast Completion

Most water sealing projects are completed in a single day, with the resin expanding and curing within minutes to stop water flow.

Minimal Disruption

No excavation, no tanking, and minimal disruption. Small injection holes provide access to seal deep cracks and joints.

No Planning Permission Required

Our resin injection technique doesn’t require planning permission, saving you time and administrative headaches.

Cost-Effective Solution

Water sealing costs significantly less than external excavation, tanking, or membrane systems, with no groundwork required.

Environmentally Friendly

Our resin formulations are eco-friendly, safe for use near water courses, and won’t harm the environment.

Long-Lasting Results

Provides permanent waterproofing that won’t degrade, crack, or fail over time, backed by comprehensive warranty protection.

Precision Application

Engineers can precisely target active leaks, joints, and cracks to create complete waterproof barriers throughout structures.

Immediate Stabilisation

Once cured, sealed areas provide immediate waterproofing—stopping active leaks within minutes of application.

Insurance Backed Warranty

Comprehensive coverage that provides long-term protection and peace of mind for your property.

Services

If you’ve noticed any of these warning signs, water sealing could prevent extensive damage and protect your property investment.

Residential Properties

Basement waterproofing and sealing.
Foundation crack injection.
Underground room water ingress.
Retaining wall leak sealing.

Commercial Buildings

Underground car park waterproofing.
Basement storage area sealing.
Service tunnel leak prevention.
Foundation water ingress treatment.

Industrial Sites

Below-ground facility waterproofing.
Tank and pit sealing systems.
Underground structure protection.
Production area water prevention.

Infrastructure

Tunnel and culvert waterproofing.
Bridge structure water sealing.
Underground station protection.
Service vault leak prevention.

Frequently Asked Questions

How much does water sealing with resin injection cost?

Costs depend on the extent of water ingress, structure size, accessibility, and number of leak points. Water sealing is typically far more economical than excavation and external tanking systems. Contact us for a free assessment and no-obligation quote.

How long does water sealing using resin injection take?

Most residential water sealing projects are completed in a single day. The resin expands and cures within minutes, often stopping active leaks immediately. Larger commercial projects may take longer depending on scale.

Is water sealing with resin injection a permanent solution?

Yes. When properly applied, our polyurethane resin water sealing provides a permanent, waterproof barrier. The material is flexible, won’t crack or deteriorate, and maintains its waterproof properties indefinitely. We back our work with comprehensive warranties.

Resin Injection customer service

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