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Trusted by home owners for 30+ years

Underground Tank Waterproofing Johannesburg

071 469 3557
230+
Satisfied Customers
1.2K+
Projects Delivered
100%
Success rate
30+
Years in Business

Keep Your Underground Tank Leak-Free

Underground tanks face constant water pressure from soil and rainfall. Leaks can contaminate water and damage structures. Our waterproofing solutions ensure tanks remain watertight and secure.
Leak-proof tanks
Soil-resistant coatings
Safe water storage
Structural reinforcement
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What We Fix with Underground Tank Waterproofing

We resolve the common tank problems that allow water or contaminants to enter, and we protect the structure inside and out.

Seepage into Tanks

Sealed against soil water

Cracks in Tank Walls

Injected and waterproofed

Contamination Risks

Prevented with safe coatings

Emergency Leak Sealing

A rapid response that injects cracks, seals weak points, and prevents contamination immediately.
Crack injection
Seal weak points

Long-Term Tank Protection

A layered system with durable coatings, soil facing membranes, and reinforcement for reliable performance.
Durable coatings
Soil-facing membranes
process

How we work

Our simple three-step process ensures, long-lasting waterproofing solutions.

1.

Quote

We inspect the problem, explain the options, and give you a free quote.

2.

Fix

Once approved, we carry out the work using quality materials for lasting results.

3.

Guarantee

We check everything with you and back it with our workmanship guarantee.

Methods We Use for Underground Tank Waterproofing

We select methods that match tank construction and moisture source to ensure a durable, compatible waterproofing system.
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Underground Tank Waterproofing built for high water tables and heavy seasonal rain

Johannesburg’s high water table and rainfall make underground tanks prone to leaks. Our waterproofing keeps them sealed and safe.
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PROOF

Our results speak for themselves

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reviews

What our clients are saying

5 etoiles trustpilot

"I want to publicly thank the team at ITA CORP for the extremely professional and reliable work they did recently on our patio roof. We've struggled with leaks for years, and now, with ITA CORP on the job, I feel comfortable since Malvern is conscientious, eager to help, knowledgeable, and his communication and follow-up is amazing."

Sven V.
5 etoiles trustpilot

"Itacorp have provided excellent services and quality workmanship throughout the years. Any comeback is dealt with immediately/timeously.
Itacorp takes pride in their workmanship. Recommended."

Jenny F.
5 etoiles trustpilot

"Itacorp has helped me a lot with dampness walls, slabs water proofing, as well as storm water drain system that has given me years of problem. knowledge and service is out of this world, thank you Malven Makura.😀"

Lee N.
5 etoiles trustpilot

"I want to extend a big thank you to ITA CORP for the outstanding work they did on my house. From start to finish, their professionalism, attention to detail, and quality of workmanship were exceptional. It’s rare to find a team that delivers exactly what they promise—and they certainly did. Highly recommended for anyone looking for reliable, top-notch service!"

Rina S.
5 etoiles trustpilot

"I have had the pleasure of several dealings with Melvern and his professional team where the work done has always been above & beyond expectations and have no hesitation in referring his company."

Patrick R.
5 etoiles trustpilot

"We have had serious issues with water damage that was driving us insane. Malvern’s team waterproofed our bathroom and fixed what another contractors managed to damage."

Adam P.
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