Waterproofing & PU Injection

Stop leaks at the source with advanced waterproofing and PU injection technology. No hacking required.

Waterproofing Work

Expert Leak Protection

Water leakage is more than just a nuisance; it's a threat to the structural integrity of your home. In Singapore's tropical climate, heavy rainfall and high humidity can easily find their way into small cracks in your concrete slabs, leading to mold, damaged finishes, and even legal disputes with neighbors. At **Citi Construction**, we specialize in permanent waterproofing solutions that save you from the stress and cost of a full toilet or roof renovation.

Our signature service is **PU Injection (Polyurethane Injection)**. This modern technique allows us to stop active leaks by injecting a specialized resin that expands upon contact with moisture, creating a tight, flexible, and permanent seal. It's fast, clean, and requires absolutely no hacking of your tiles.

The Ultimate Waterproofing Guide for Singapore Homeowners

Understanding Inter-floor Leakage

If you live in an HDB or Condo, inter-floor leakage is a common problem. The responsibility for repairs is usually shared between the upper and lower floor neighbors. **Citi Construction** provides professional assessments to identify the source of the leak, whether it's coming from a faulty pipe or a compromised waterproofing membrane in the unit above.

Our Waterproofing Services

PU Injection for Toilets & Balconies

We use high-pressure PU injection to stop water seepage in bathroom ceilings and balcony floors. This "no-hacking" method is HDB-approved and can be completed in just a few hours.

Roof & External Wall Coating

For landed properties, we apply multi-layer liquid waterproofing membranes to roofs and external walls to prevent water ingress from the outside.

Bathroom Floor Retiling & Waterproofing

If you're doing a full renovation, we provide complete waterproofing membrane installations using the latest cementitious or polyurethane systems for total peace of mind.

Spalling Concrete Repair

If the steel bars inside your ceiling have started to rust and expand due to water leakage, we offer professional spalling concrete repairs to restore safety to your home.

Why Choose Citi Construction?

Our supervisor, **Shahed Nur Rahman**, has years of experience in leak detection and remediation. We don't just patch the surface; we solve the root cause. All our waterproofing projects come with a written warranty, ensuring your home stays dry for years to come.

Is Your Ceiling Leaking?

Don't let a small leak become a big problem. Contact our waterproofing experts today for a free assessment.

WhatsApp +65 8154 3484