Sump Waterproofing

What is Sump Waterproofing?

A sump (underground water tank) is built to store large quantities of water. It’s usually constructed below ground level using RCC (reinforced cement concrete) or masonry.

Over time, due to poor construction, soil settlement, high water table, or wear and tear, cracks and voids appear in the sump’s walls or base slab. This leads to:

• Water leakage into the surrounding soil

• Contamination from soil or sewage seepage

• Structural weakening

• Wastage of precious water

Sump Waterproofing is a specialized treatment that seals all cracks, joints, and porous areas inside the tank, creating a protective, food-grade, waterproof barrier. This keeps your stored water safe and your structure strong for years.

Why Do You Need Sump Waterproofing?

Still wondering if you really need to waterproof your sump? Here are 5 solid reasons:

1️⃣ Stop Water Leakage

Even a small leak can waste hundreds of litres of clean water daily, driving up water costs and creating wet patches around your building.

2️⃣ Prevent Contamination

A leaking sump invites groundwater, mud, or sewage to seep in — contaminating your drinking water and risking your family’s health.

3️⃣ Protect Structure

Water seepage damages the RCC slab, corroding steel reinforcements and causing cracks that weaken your sump.

4️⃣ Avoid Dampness

Leaking sumps often cause damp spots, algae growth, and foul smells around your basement or garden.

5️⃣ Save Money

Waterproofing costs much less than building a new sump or fixing bigger structural damage later.

Common Causes of Sump Leakage

These issues often lead to sump leaks if waterproofing is neglected or done poorly:

✅ Poor quality construction materials
✅ No proper joint sealing between base and walls
✅ Lack of protective coatings during construction
✅ Earth pressure or groundwater seepage
✅ Settlement or cracks in foundation
✅ Rusting steel reinforcements
✅ Shrinkage cracks due to poor curing

A professional inspection reveals the root cause — and that’s where we come in.

Our Sump Waterproofing Process

At Shree Varad Services, we follow a proven, multi-step approach for sump waterproofing:

🔍 1. Site Inspection

We thoroughly inspect the sump for cracks, honeycombs, seepage points, joint gaps, and structural integrity. We check both the interior and exterior where possible.

🧹 2. Surface Preparation

A clean surface is key for any waterproofing to bond well. We drain the sump, clean algae, moss, dirt, old paint, or failed coatings.

🔧 3. Crack & Joint Repair

We open up cracks, clean them, and fill them with high-strength repair mortars or injection grouting. We also seal construction joints and pipe inlets/outlets.

🧪 4. Waterproof Coating Application

We apply a food-grade, non-toxic cementitious or crystalline waterproofing system in multiple coats. These coatings penetrate concrete pores and form a watertight layer.

🧱 5. Final Curing & Quality Check

After curing, we do a thorough leak test by filling the sump and checking for seepage. Only when it passes do we hand it over for use.

Types of Sump Waterproofing Systems We Use

Depending on your sump’s condition and requirements, we choose from:

✅ Cementitious Coating: Flexible, easy to apply, cost-effective, and food-safe.
✅ Crystalline Waterproofing: Penetrates deep into concrete and seals micro-cracks permanently.
✅ Injection Grouting: For major cracks or voids, we inject specialized PU or epoxy grouts to seal leak paths.
✅ Epoxy Lining: For industrial sumps storing process water or chemicals, we use chemical-resistant epoxy coatings.

Benefits of Professional Sump Waterproofing

✔ Zero Leakage: Stops water wastage and protects your water supply.
✔ Safe & Hygienic: Food-grade coatings ensure your water stays potable.
✔ Long-Lasting: Good waterproofing lasts 8–12 years or more.
✔ Structural Safety: Prevents corrosion and cracks in the tank walls and slab.
✔ Value for Money: Saves the high cost of rebuilding or repairing major leaks later.
✔ Peace of Mind: No more dampness, waterlogging, or contamination worries.

Where Sump Waterproofing is Used

✅ Residential sumps in bungalows, apartments, or housing societies
✅ Commercial water storage tanks in hotels, hospitals, malls
✅ Industrial sumps for process water
✅ Underground fire-fighting water tanks
✅ Overhead tanks and RCC water tanks

Why Choose Shree Varad Services for Sump Waterproofing?

Here’s why Pune trusts us for leak-proof sumps:

⭐ Proven Track Record: Years of experience in waterproofing underground tanks, basements, and sumps.
⭐ Expert Team: Trained, professional applicators who understand structural challenges.
⭐ Food-Safe Materials: We use only certified, non-toxic products for potable water storage.
⭐ Tailor-Made Solutions: Customized approach for new and old sumps.
⭐ Quick Response: Based at Madhuban Society, Sonchafa B-108, Kolewadi, Pune – 411024, we’re always nearby.
⭐ After-Sales Support: Leak test reports, maintenance tips, and timely follow-up.

Tips to Maintain a Waterproofed Sump

✅ Clean the sump at least once every 6–12 months.
✅ Check for signs of cracks, algae, or leaks.
✅ Keep pipes and valves well-maintained.
✅ Call professionals for inspection if you notice water loss.
✅ Never drill or hammer the sump walls without expert advice.

FAQs About Sump Waterproofing

1️⃣ How long does sump waterproofing last?
A well-applied system can last 8–12 years if maintained properly.

2️⃣ Is sump waterproofing safe for drinking water?
Yes! We use food-grade, certified waterproofing materials approved for potable water storage.

3️⃣ Can an old leaking sump be waterproofed?
Absolutely. We specialize in repairing and re-waterproofing old sumps using injection grouting and fresh coatings.

4️⃣ How much does sump waterproofing cost?
Costs depend on the sump size, damage level, and coating system. We offer free inspections and clear estimates.

5️⃣ How long does the waterproofing process take?
It usually takes 2–5 days, including preparation, coating, and curing time.

Don’t Let Your Precious Water Go to Waste – Call Us Today!

Leaks and contamination can silently ruin your water supply and cost you thousands. Don’t wait for bigger damage — protect your sump now with expert Sump Waterproofing from Shree Varad Services – Waterproofing & Epoxy Flooring Experts.

📍 Office: Madhuban Society, Sonchafa B-108, Kolewadi, Pune – 411024

📍 Office: flat no 402, SV Hights, KRCR Colony Rd, Bachupally, Hyderabad, Telangana 500090
📞 Call: +91 9640126496 | +91 9766826496