PUB Injection Waterproofing Services in Singapore

Protect your property from water seepage and active concrete leaks with professional PU injection waterproofing services in Singapore. Polyurethane (PU) injection is a practical and effective waterproofing method used to seal water-bearing cracks, joints, voids, and other leakage paths within suitable concrete structures.

Over time, concrete structures can develop cracks, construction joints can deteriorate, and small gaps or voids can allow water to penetrate into walls, ceilings, slabs, basements, and other areas. If left untreated, continuous water seepage can lead to dampness, staining, mould growth, damaged finishes, and further deterioration.

PU injection waterproofing works by injecting specially formulated polyurethane resin into suitable cracks, joints, and voids. When the resin comes into contact with moisture, it can expand and cure to form a flexible waterproof seal that helps block the path of water from within the structure. (Maxbond)

Our PU injection waterproofing services are suitable for residential properties, HDB flats, condominiums, landed homes, commercial buildings, offices, basements, car parks, concrete ceilings, retaining walls, lift pits, and other suitable structures across Singapore.

From identifying the source of water seepage and preparing the injection points to injecting PU resin, sealing the treated area, and carrying out a final inspection, our team follows a structured process to achieve an effective and professional waterproofing result.

Our PU Injection Waterproofing Services

We provide professional PU injection solutions for different types of water leakage and concrete waterproofing applications in Singapore. The appropriate injection method can be selected according to the location of the leak, crack condition, moisture level, concrete structure, and overall project requirements.

Concrete Crack PU Injection

Concrete cracks can allow water to penetrate through walls, ceilings, slabs, and other structures. PU injection can be used for suitable water-bearing cracks by introducing polyurethane resin directly into the affected area.

The expanding resin can penetrate the crack and surrounding voids before curing into a flexible seal, helping to reduce further water infiltration. (Dryproof)

Ceiling Leak PU Injection

Water seepage through concrete ceilings can cause visible water stains, damp patches, peeling paint, and recurring leaks. PU injection can be considered for suitable ceiling cracks and slab leakage where water is entering through the concrete structure.

Injection is generally carried out from the affected side using specially installed injection points, helping to address the water path without requiring extensive hacking. (Primaseal)

Wall Crack PU Injection

Cracks in concrete walls can become pathways for water, particularly in areas exposed to external moisture or hydrostatic pressure. Professional PU injection can help seal suitable water-bearing cracks from within the concrete.

This method is commonly considered for basement walls, retaining walls, concrete structures, and other areas where conventional surface sealing may not reach the actual leakage path.

Basement & Retaining Wall Waterproofing

Basement walls and retaining structures can experience water pressure from surrounding soil and groundwater. When water finds its way through cracks or joints, surface-level repairs may not adequately address the source.

PU injection can be used to seal suitable water-bearing cracks and joints within these concrete structures, helping reduce water ingress and protect the surrounding area. (CWP)

Construction & Cold Joint Injection

Construction joints and cold joints can become vulnerable points for water seepage when gaps or deterioration develop between concrete sections.

PU injection can be applied to suitable joints to fill leakage paths and create a flexible waterproof seal. This makes it a useful remedial option for certain concrete joint leakage problems.

Pipe Penetration & Void Injection

Gaps around pipe penetrations and concealed voids can sometimes become pathways for water infiltration. PU resin can be injected into suitable gaps and voids to help seal areas that are difficult to access through conventional surface waterproofing.

Final Inspection and Leak Check

After completing the PU injection work, the treated area is inspected to assess the grout coverage, surface condition, and overall finish.

Where appropriate, the area may be monitored or tested to check whether the water seepage has been effectively controlled.

The surrounding work area is then cleaned and the completed PU injection waterproofing work is handed over in a neat and presentable condition.

Why Choose Us?

• Experienced Waterproofing Team
• Professional PUB Injection Method
• Active Leak & Seepage Solutions
• Ceiling & Wall Leak Repair
• Transparent Pricing
• Free Site Assessment & Quotation