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Sri Lanka's #1 Waterproofing Specialist

Stop the Leaks. Protect Your Building
Forever.

Sri Lanka's most trusted waterproofing company — 15+ years protecting homes, hospitals, luxury residences and landmark buildings island-wide.

🛡️ Get Free Inspection 📞 +94 777 887 307
15+
Years Experience
500+
Projects Done
10yr
Warranty
100%
Satisfaction
Certified Waterproofing Expert
🏆
Latest Completion
CMC
Colombo Municipal Council
📅
Serving Since
2009
Island-Wide Sri Lanka
Certified
Specialist
✓
Certified Applicators
10-Year Written Warranty
500+ Satisfied Clients
New Zealand Technology
Island-Wide Service
What We Do

Complete Waterproofing
Solutions

From a leaking roof to a landmark hospital — our certified team delivers lasting protection using New Zealand's finest waterproofing technology.

🏠
Roof & Terrace
Flat roofs · Overhead slabs · Terraces
›
🏊
Swimming Pool
Pools · Water features · Tanks
›
🏗️
Basement & Underground
Basements · Retaining walls · Pits
›
🚿
Bathroom & Wet Areas
Bathrooms · Kitchens · Wet rooms
›
🏢
Structural Rehabilitation
Concrete repair · Crack injection
›
🧱
External Walls
Facades · Masonry · Cladding
›
01
🏠
Waterproofing Solution

Roof & Terrace
Waterproofing

A leaking roof causes severe structural damage over time. Our certified team applies advanced crystalline and flexible membrane systems that permanently seal your roof from water penetration — guaranteed to last.

  • Flat roofs, sloped roofs & overhead slabs
  • Terrace decks and balconies
  • New construction & remedial waterproofing
  • 10-year written warranty on all applications
02
🏊
Waterproofing Solution

Swimming Pool
Waterproofing

Pool leaks waste thousands of litres of water and damage surrounding structures. We apply ultra-flexible, waterproof cementitious systems proven in tropical climates — keeping your pool watertight for years.

  • Residential & commercial pools
  • Water features, ponds & fountains
  • Underground water tanks & sumps
  • UV-resistant, 100% elongation systems
03
🏗️
Waterproofing Solution

Basement &
Underground Structures

Underground structures face constant hydrostatic pressure. We use both positive and negative side waterproofing systems to create a complete barrier — protecting your basement from rising damp and lateral water ingress.

  • Positive & negative side waterproofing
  • Retaining walls and lift pits
  • Crystalline self-healing systems
  • Sub-floor moisture barriers
04
🚿
Waterproofing Solution

Bathroom &
Wet Area Waterproofing

Hidden moisture behind tiles causes mold, structural damage, and costly repairs. Our bathroom waterproofing system seals walls and floors at the substrate level — eliminating dampness at the source before tiling.

  • Wet rooms, bathrooms & showers
  • Kitchen & laundry floors
  • Applied before or after tiling
  • Mold-resistant, anti-microbial systems
05
🏢
Waterproofing Solution

Structural
Rehabilitation

Aging and damaged concrete structures need expert rehabilitation to restore strength and durability. We carry out crack injection, concrete repair and full structural waterproofing — trusted by government projects across Sri Lanka.

  • Crack injection & concrete repair
  • Spalling concrete restoration
  • Rebar protection & anti-corrosion
  • Heritage & government building expertise
06
🧱
Waterproofing Solution

External Wall
Waterproofing

Rainwater penetrating your external walls causes efflorescence, dampness, and paint failure. Our elastomeric wall coating systems form a flexible, breathable barrier that protects facades while allowing the structure to breathe.

  • External facade & render coatings
  • Masonry & brick wall sealing
  • Elastomeric & silicone barrier systems
  • Decorative waterproof render finishes
Certified Waterproofing Specialist
15+
Years Active
500+
Projects Done
10yr
Warranty
✓ NZ
Certified
Expert
Why Choose Us

Sri Lanka Trusts
WaterProofing.lk

We don't just fix leaks — we eliminate them permanently. Certified technology, skilled specialists, and a written guarantee on every single project.

🏆
Certified Application Specialists
Factory-trained and certified directly by Supercrete New Zealand — the only authorised applicator in Sri Lanka for their premium product range.
📋
Written 10-Year Warranty
Every project comes with a comprehensive written warranty. No verbal promises — a real, enforceable guarantee that protects your investment.
🔬
New Zealand Technology Products
We exclusively apply Supercrete's certified systems — engineered for tropical climates and proven across 500+ Sri Lankan projects.
🏛️
Government & Commercial Track Record
Trusted by the Colombo Municipal Council, government hospitals, luxury apartment complexes, and homeowners across every province.
🛡️ Get Free Inspection
⭐⭐⭐⭐⭐ Rated 5/5 by 500+ clients
Our Product Range

Premium Waterproofing Products

We exclusively apply certified Supercrete systems — the most advanced waterproofing technology from New Zealand, proven in tropical climates across Sri Lanka.

Powered by New Zealand Technology · Supercrete Certified
Duraproof SB 40
Supercrete · NZ
Duraproof SB 40
Single part acrylic cementitious waterproof render for concrete & masonry
Cementitious
Duraflex Ultra
Supercrete · NZ
Duraflex Ultra
Titanium modified, UV stable 2-part flexible cementitious waterproofing slurry
Ultra Flexible
Duraflex 100
Supercrete · NZ
Duraflex 100
Highly flexible 2-part waterproofing slurry — UV resistant, 100% elongation
High Flex
DuraCoat Deco
Supercrete · NZ
DuraCoat® Deco
Water repellent pre-mixed smooth finish coat cement-based render for facades
Decorative Render
Duraseal XP
Supercrete · NZ
Duraseal XP
Crystalline waterproofing cement-based slurry — self-healing & deep penetrating
Crystalline
🧪
Need Expert
Advice?
Our technical team will recommend the right product system for your specific project.
🛡️
All products are certified & warranted Every application is backed by a 10-year written warranty — supplied by Hi-Tech Concrete Solutions (Pvt) Ltd
View Full Product Range →
Events & Exhibitions

Educating Sri Lanka About
Waterproofing Excellence

We actively invest in industry knowledge — hosting technical seminars, presenting at government institutions, and participating in Sri Lanka's leading construction exhibitions.

Annual Technical Session 2024
⭐ Flagship Event
Annual Technical Session & Cocktail Dinner 2024
📍 Mövenpick Hotel, Colombo · March 7th, 2024 · 100+ Industry Professionals
Keynote Presentation
Keynote Presentation
Technical Session 2024
⤢
Industry Leaders Forum
Industry Leaders Forum
Supercrete NZ · Hi-Tech
⤢

📋 Road Development Authority — Technical Presentation, Sethsiripaya

RDA Technical Presentation
RDA Technical Presentation
Technical Seminar
Technical Seminar
RDA Technical Session
RDA Technical Session
RDA Technical Seminar
RDA Technical Seminar
RDA Technical Presentation
RDA Technical Presentation
RDA Technical Session
RDA Technical Session
Technical Session 2024
Technical Session 2024
🎤
Annual Technical Seminars Hosted at 5-star venues since 2019
🏛️
Government Institution Presentations RDA · CMC · Hospitals · State Ministries
👷
500+ Engineers & Architects Trained CPD-accredited technical sessions
View All Events →
Architect 2025 Full Booth
🏆 Product Excellence Award
Architect Exhibition 2025
📍 Sri Lanka's Premier Construction Exhibition · Supercrete & Hi-Tech Official Booth
Architect 2025 Booth
Official Exhibition Booth
Supercrete · Hi-Tech · WaterProofing.lk
⤢
Product Excellence Award
Product Excellence Award
Duraflex Ultra · Architect 2025
⤢

🏛️ More from Architect 2025 Exhibition

Architect 2025 Exhibition
Architect 2025 Exhibition
Architect Exhibition Booth
Architect Exhibition Booth
Architect Exhibition 2025
Architect Exhibition 2025
Architect Exhibition 2025
Architect Exhibition 2025
🏆
Award Recognition
Product Excellence Award
Architect 2025
Duraflex Ultra by Supercrete was awarded the Product Excellence Award at Architect 2025 — Sri Lanka's most prestigious construction industry exhibition. A recognition of world-class waterproofing technology.
See More →
Client Reviews

Trusted By Clients
Across Sri Lanka

Real reviews from real clients — see what property owners, developers and engineers say about our work.

★★★★★

Our roof had been leaking for years. After WaterProofing.lk's treatment, not a single drop in two monsoon seasons. Exceptional service — highly recommended!

AK
Asantha Kumara
Homeowner, Colombo 7
★★★★★

Professional team, punctual and clean. They waterproofed our basement and pool. The written 10-year warranty gave us complete confidence.

RP
Rukshan Perera
Property Developer, Gampaha
★★★★★

Contracted for the entire Miriswatta complex. Quality of Supercrete products and workmanship exceeded our expectations completely.

SP
Sampath Priyantha
Prime Residencies (Pvt) Ltd
★★★★★

Persistent bathroom seepage that other contractors couldn't fix — WaterProofing.lk solved it in one visit. The crystalline system is truly impressive.

MF
Mohamed Farhan
Villa Owner, Negombo
⭐ Write a Google Review View Facebook Reviews →
5.0
★★★★★
Based on Google Reviews
5 ★
100%
4 ★
0%
3 ★
0%
🏆
Certified Applicators Supercrete New Zealand Authorised
📋
10-Year Written Warranty On every single project
👷
500+ Completed Projects Residential · Commercial · Government
🏅
Product Excellence Award Architect Exhibition 2025
Leave Us a Google Review

Is Your Building Leaking?
Get a FREE Inspection Today.

Our certified experts will assess your property and recommend the best solution — at no cost to you.

🛡️ Book Free Inspection 📞 +94 777 887 307 💬 WhatsApp Us