Overhead tanks are critical for water storage, but over time, they develop cracks, seepage, and chemical damage. Even a tiny leak can waste hundreds of liters of water daily and cause dampness in the building structure. Dr. Terrace Waterproofing offers professional Overhead Tank Waterproofing Services to ensure your tank remains leak-proof, hygienic, and durable.
Why Overhead Tank Waterproofing Matters?
Overhead tanks are exposed to:
- Constant water pressure
- Heat and weather changes
- Mineral deposits
- Structural movement
- Chemical reactions
All these factors create cracks and porous surfaces that lead to water leakage. Without proper waterproofing, it can cause:
- Damp patches on top-floor ceilings
- Seepage into internal walls
- Water contamination
- Reduced structural strength
- High repair expenses
Waterproofing your overhead tank ensures long-term safety and durability.
Types of Tanks We Waterproof
Dr. Terrace Waterproofing handles waterproofing for all kinds of water storage tanks:
- RCC Overhead Tanks
- Underground Sumps
- Plastic & PVC Tanks
- Aluminium Tanks
- Terrace-Level Water Tanks
- Industrial Storage Tanks
Our Overhead Tank Waterproofing Process
1. Cleaning & Surface Preparation
We thoroughly clean the internal and external surface of the tank using:
- Pressure jet wash
- Wire brushing
- Chemical cleaning (if needed)
2. Crack Treatment
All cracks are filled with polymer modifiers and high-strength mortar.
3. Leak Detection
We check for hidden seepage points and weak spots.
4. Application of Waterproof Coating
We use premium-grade coatings such as:
- Cementitious Coating (2K)
- Polymer-Modified Mortar
- Crystalline Waterproofing
- Epoxy-Based Coatings (for industrial tanks)
These coatings form a strong, food-safe, and water-resistant film.
5. Curing & Testing
After coating, we allow proper curing and perform a water-fill test to ensure no leakage remains.
Benefits of Overhead Tank Waterproofing With Us
💧 100% leak-proof guarantee
🛡️ Safe, non-toxic materials
🏗️ Increased tank life
🚫 Prevents algae, fungus & contamination
⚙️ Suitable for all tank types
📄 Warranty options available
Where We Provide the Service
- Apartments & Residential Buildings
- Villas & Individual Houses
- Schools & Colleges
- Hospitals
- Hotels & Restaurants
- Industrial & Commercial Buildings
FAQs
1. How long does the waterproofing last?
Our coatings typically last 8–15 years, depending on tank usage and environment.
2. Is the waterproofing material safe for drinking water?
Yes, we use food-grade, non-toxic waterproofing materials.
3. Will the tank need to be emptied before waterproofing?
Yes, the tank must be completely drained for cleaning and coating.
4. How long before the tank can be used again?
Usually, 24–48 hours after the waterproofing is complete.
5. Can cracks in old tanks be repaired?
Absolutely. We specialize in repairing structural cracks before coating.

