Long-Lasting • Cost-Effective • Expert Application • Trusted Results
Old Building Waterproofing Services in Ahmedabad
We provide professional old building waterproofing solutions using high-performance chemicals to protect terraces, roofs, walls, bathrooms, basements, and water tanks from long-term leakage, dampness, and structural damage.
Old Building Waterproofing
Waterseal Provide Total Waterproofing Services for Old Buildings in Ahmedabad.
Old building waterproofing services are essential to protect ageing structures from leakage, cracks, and long-term structural damage. Old buildings naturally develop cracks in their walls, terraces, and slabs over time when timely repairs are not carried out. If waterproofing is delayed, these issues spread rapidly and weaken the building’s foundation, walls, and slabs.
Why Old Buildings Need Waterproofing?
Waterproofing for old buildings is necessary because ageing structures are more vulnerable to cracks, dampness, and water seepage. Years of exposure to cold, heat and rain cause many common problems in old buildings: the symptoms of which are as follows:
- The main reason for leakage is cracks in walls, parapets and terraces
- Dampness, black spots and peeling paint on the walls
- Weakening of plaster causes hollow sound in the walls.
- Seepage appears in the walls around the bathroom and kitchen and in the rooms below.
- Dampness in the basement causes the smell of rotten water in the air there.
- Peeling of paint on the walls leads to the development of fungus under it.
If waterproofing and repairs are not done on time, these problems lead to higher costs. Such as;
1. Gradually, the structure of the house weakens, and the plaster starts to crumble.
2. Pieces of weak plaster start falling from the ceiling. There is a risk of the ceiling sagging due to rust on the iron rods used in construction.
Looking for all types of waterproofing?
Explore our complete Waterproofing Services Guide for every type of waterproofing solution.
View Waterproofing Services →Major Areas That Need Waterproofing in Old Buildings
Our old building waterproofing solutions are designed based on the condition of terraces, roofs, walls, bathrooms, and water tanks.
1. Waterproofing for Old Terraces and Roofs
The biggest source of water leakage in old buildings is the terrace. Over time, cracks develop, water stagnates, and the surface plaster deteriorates, leading to severe seepage issues.
Waterseal Waterproofing provides customized waterproofing solutions based on the existing condition of the surface. Terrace waterproofing is carried out on roof surfaces such as concrete plaster, china mosaic, or tiles. Waterseal’s PSV premix chemical penetrates deep into the slab, fills micro and major cracks, and forms a long-lasting waterproof layer. With the use of PPC mat and PSV chemical, both small and large cracks are effectively sealed, strengthening the surface bond.
In many old buildings, the roof loses its proper slope or sags in certain areas, causing water to accumulate. In such cases, we carry out strong structural repairs, recreate the correct slope to prevent water stagnation, and then apply high-quality waterproof coatings.
If the terrace plaster is cracked, raised, or produces a hollow sound, it is completely removed. A new, durable, and waterproof plaster is then applied using the best quality cement, sand, and waterproofing chemicals, giving the roof a new lease of life.
2. Bathroom and Kitchen Waterproofing
• Solution for Floor Leakage Only
In old houses, bathroom and kitchen floor tiles often crack, or water leakage occurs through tile joints or plumbing lines. In such cases, only the floor tiles and drainage lines of the bathroom or kitchen are replaced. New base tiles are installed along with proper waterproofing treatment to stop leakage effectively without disturbing the entire area.
Our methods are ideal for waterproofing for old houses, especially where bathroom floor leakage, broken tiles, or pipe seepage is common.
• Bathroom Renovation with Waterproofing
When a bathroom's tiles are cracked, drainage lines are damaged, or water supply pipes are leaking, a complete bathroom renovation becomes necessary.
During the renovation process, PSV chemical coating is applied at every stage—on plaster, tiles, pipe fittings, and drainage areas beneath the tiles—to ensure complete waterproofing and prevent future water seepage.
3. Interior & Exterior Wall Waterproofing
In old buildings, walls often absorb moisture due to cracks and porous or deteriorated plaster.
If the wall plaster is in good condition, waterproofing can be carried out by thoroughly cleaning the surface and applying three coats of PSV premix chemical directly on the wall.
However, if the plaster is weak or damaged, it is completely removed and replaced with new plaster mixed with waterproofing chemicals, providing long-lasting and effective waterproofing.
4. Water Tank Waterproofing
Old water tanks (overhead or underground) lose strength over time due to cracks and water pressure.
Types of Tank Waterproofing:
Overhead tank waterproofing using food-safe PSv-Premix
Underground tank waterproofing with high-pressure resistance
Tiled tank joint sealing
Active water tank waterproofing for continuous flooding
Waterseal’s waterproofing ensures zero leakage & 100% safe water storage.
5. Secondary Critical Areas in Old Buildings
Even less-noticed areas cause major leakage issues:
• Exterior Walls & Parapets
Exposed walls crack due to heat and rain. Elastomeric coatings block moisture.
• Windows & Door Frames
Poor sealing causes rainwater entry. Proper caulking and waterproof membranes are applied.
• Balconies & Sunshades
Constant exposure makes them crack and leak. Waterproof treatments prevent efflorescence and surface damage.
Regular inspection of these areas helps avoid expensive repairs later.
Why Choose Waterseal for Old Building Waterproofing?
Waterseal has 29+ years of specialized experience protecting thousands of old buildings across India. We focus on delivering permanent waterproofing for old buildings using advanced PSV-Premix chemical systems and proven application methods.
We offer:
- Customized treatment for old structures
- PSv-Premix deep waterproofing system
Long-lasting results even during heavy monsoon - Expert inspection & material recommendation
- Safe, eco-friendly waterproofing solutions
- Experienced technical team
- Cost-effective & no-breakage methods
Whether your building is 10, 20, or even 50 years old, Waterseal provides the right solution to restore strength and stop leakage permanently.
Benefits of Old Building Waterproofing
Old buildings require timely waterproofing to prevent long-term structural and surface damage. A proper waterproofing system provides the following benefits:
Stops leakage and seepage permanently by sealing cracks and weak points
Protects terraces, walls, bathrooms, and balconies from water penetration
Restores structural strength and improves the overall appearance of the building
Reduces frequent repair and maintenance costs
Increases property life and resale value by keeping the structure safe and dry
Suitable For:
Old residential homes and bungalows
Multi-floor apartments & housing societies
Commercial buildings & industrial sheds
Government, heritage, and institutional structures
How We Waterproof Old Buildings – Application Method
Waterseal follows a systematic waterproofing method designed specially for old structures:
Surface Cleaning: Remove loose paint, dust, algae, and weak plaster
Crack Filling: Seal visible cracks using specialized sealants
Chemical Application: Apply 2–3 coats of Waterseal PSv-Premix for deep penetration
Drying & Curing: Allow proper drying to create a strong waterproof layer
Optional Topcoat: Add a protective elastomeric topcoat for extra durability and clean finish
This process ensures long-term waterproofing without breakage or heavy renovation.
Our Waterproofing Solution for Old Buildings
Waterseal’s expert treatment includes a full range of waterproofing applications tailored for old structures:
✔ Crack filling and sealing to stop seepage at the source
✔ Terrace waterproof coating using Waterseal PSv-Premix or PU-based systems
✔ Internal and external wall waterproofing for dampness control
✔ Bathroom and toilet waterproofing using deep-penetration chemicals
✔ Application by brush, roller, or spray depending on surface condition
✔ Flexible, durable waterproof coating with protection for 5+ years
Our method strengthens old buildings, stops leakage permanently, and provides long-lasting protection during heavy monsoons.
✅ Old Building Waterproofing – FAQs
Why do old buildings face frequent leakage and dampness?
Old buildings naturally develop cracks, weak plaster, loose joints, and porous walls due to ageing and continuous weather exposure. These gaps allow rainwater and moisture to enter, causing dampness, seepage, and structural weakness. Proper waterproofing for old buildings, done at the right time, helps block water entry and protects the structure from further damage.
How long does old building waterproofing last?
Waterseal’s old building waterproofing services typically last 5+ years, depending on the condition of the structure, terrace slope, surface preparation, and maintenance. With regular inspections and timely touch-up coats, our old building waterproofing solutions can provide long-lasting protection.
Can waterproofing be done without removing tiles or breaking the surface?
Yes. Many areas in ageing structures—such as bathrooms, terraces, and walls—can be treated without breakage. This approach is especially effective for waterproofing for old houses, where avoiding demolition is important. Waterseal’s PSv-Premix chemical penetrates deep into the existing surface and seals cracks internally, stopping leakage without removing tiles.
How much does old building waterproofing cost?
The cost depends on factors such as total area, type of leakage, condition of walls or slabs, and the waterproofing method required. In most cases, old building waterproofing services are far more cost-effective than full renovation because they address the root cause of leakage without major structural damage. A site inspection helps determine the exact cost.
Is waterproofing necessary if the building is very old (20–50 years)?
Absolutely. Older buildings are more vulnerable to internal damage caused by seepage and moisture. Professional treatment ensures permanent waterproofing for old buildings, preventing further deterioration, strengthening the structure, and significantly extending its lifespan. It is one of the most essential protective solutions for old homes, apartments, and commercial buildings.
Easy, Safe & Long-Lasting Old Building Waterproofing — Get Your Free Consultation!
Protect your home or office with Waterseal’s old building waterproofing services. Whether it’s an ageing house or an old commercial building, our expert team delivers permanent waterproofing solutions with long-lasting results and minimal disruption.
