Protect Your Foundation from Water Damage
What We Fix with Foundation Waterproofing
Cracks in Foundations
Seepage
Damp Walls
Immediate Foundation Protection
Long-Term Durability
How we work
1.
Quote
2.
Fix
3.
Guarantee
Methods We Use for Foundation Waterproofing
Foundation Waterproofing designed for Johannesburg
Our results speak for themselves
What our clients are saying
"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."
"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."
"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.😀"
"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!"
"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."
"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."
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Why Foundation Waterproofing Is Essential for Johannesburg Homes and Buildings
Your foundation is what everything else rests on. When it’s exposed to continuous moisture, that strength begins to weaken from the ground up. In Johannesburg, clay rich soils expand and contract with rainfall, pushing water into foundations and causing cracks, dampness, and even structural shifting over time. Foundation waterproofing protects against these invisible but destructive forces, ensuring your property stays solid and dry for decades.
Proper waterproofing doesn’t just stop water, it prevents damage before it starts. By sealing, reinforcing, and protecting the base of your structure, we create a permanent barrier that keeps moisture out and strength in.
If dampness is already visible inside your home, you may also need our interior damp proofing service.
Why Our Foundation Waterproofing System Works
Most foundation damage starts small, hairline cracks, damp patches, or slight discolouration at the base of exterior walls. Many contractors simply patch these signs without addressing the pressure behind them. We do the opposite, we stop water at its source.
Our foundation waterproofing combines deep sealing treatments, flexible membrane systems, and soil facing barriers to fully isolate your foundation from surrounding moisture. Each layer is designed to resist hydrostatic pressure and accommodate natural soil movement. Once complete, your foundation is protected against both direct water intrusion and long term damp migration.
Who Needs Foundation Waterproofing
Our solutions are ideal for:
Homeowners noticing damp walls, bubbling paint, or cracks near the floor line.
Developers and builders constructing new homes or complexes in Johannesburg’s moisture prone soils.
Property managers maintaining older buildings where foundations are showing signs of damp or settlement.
Commercial sites with below ground structures exposed to constant moisture.
If your walls feel cold and damp near the base or you see cracks forming where the wall meets the floor, foundation waterproofing is the only long term fix that protects both structure and safety.
For below ground areas experiencing leaks or moisture buildup, also see our basement waterproofing services.
The Problems We Solve
Cracks and leaks forming in foundation walls
Rising damp moving up from soil into living spaces
Soil water seeping through unprotected foundations
Weakened concrete from constant moisture exposure
Structural instability caused by expanding and contracting clay soils
We eliminate these risks by sealing entry points, reinforcing the foundation, and blocking moisture at the soil interface, where the problem truly begins.
The Long-Term Benefits of Proper Foundation Waterproofing
A waterproofed foundation extends your building’s life and saves thousands in future repairs. Once sealed, moisture can no longer travel upward into walls, keeping interiors dry, paint intact, and structures stable.
Our systems also reduce the risk of foundation shifting and cracking during seasonal rain cycles. The result is a stronger, drier, and longer lasting property with lower maintenance costs and better indoor comfort.
If water pooling or poor drainage is causing pressure against your foundation, our slope correction and drainage solutions can resolve the underlying cause.
How We Waterproof Foundations the Right Way
Inspection and Diagnosis – We assess the condition of your foundation, looking for cracks, damp areas, and water entry points.
Surface Preparation – Clean, grind, and prepare surfaces for maximum bonding strength.
Crack and Joint Sealing – Fill and seal structural cracks using flexible waterproof compounds.
Membrane Application – Apply high performance liquid or sheet membranes that resist soil moisture and pressure.
Reinforcement and Protection – Add fibre reinforcement or protective coatings to ensure long term durability.
Final Testing and Quality Check – Confirm watertightness and provide a workmanship guarantee.
Frequently Asked Questions
How do I know if my foundation needs waterproofing?
If you see damp spots, cracks, or peeling paint near the base of walls, water is likely seeping through your foundation.
Can you waterproof from the inside or outside?
Yes. Depending on the structure, we apply waterproofing internally, externally, or both for complete protection.
Will this stop rising damp?
Absolutely. Our foundation waterproofing blocks moisture from below the wall, preventing rising damp at its source.
How long does it last?
Our systems typically last 10 to 15 years or longer with minimal maintenance.
Do you provide a guarantee?
Yes, every project includes a workmanship guarantee and material warranty.
If your foundation shows signs of damp or cracking, the problem won’t go away on its own. Contact us today for professional foundation waterproofing in Johannesburg — a long term solution that protects your home from water damage and keeps its structure strong for years to come.
Service Areas
We provide professional flat roof waterproofing across Johannesburg, including:
Sandton, Midrand, Bryanston, Fourways, Bedfordview, Rosebank, Melrose, Hyde Park, Randburg, and surrounding suburbs.