Waterproofing in Bloemfontein
Keep damp and leaks out for good.
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Reviewed by F.C. Schlebusch, Owner & Lead Contractor
Last reviewed: August 2026
Key Note
Water damage is expensive, prevention isn't. We waterproof roofs, decks, balconies, foundations and basements, and treat rising damp properly the first time. Our team identifies the true source of the problem before quoting, so you fix the cause and not just the symptoms.
What's Included
- Flat roof and concrete deck waterproofing
- Torch-on and liquid membrane systems
- Rising damp diagnosis and treatment
- Balcony, shower and wet-area sealing
- Foundation and basement damp proofing
- Parapet, flashing and joint sealing
Signs You Need Waterproofing Help
- Bubbling or peeling paint near the floor line inside your home.
- White powdery deposits (efflorescence) on interior or exterior walls.
- Dark patches on ceilings that appear after rain.
- Mould growing in corners, cupboards or behind furniture.
- A musty smell in specific rooms.
- Previous waterproofing that has cracked, lifted or blistered.
Waterproofing Services We Offer
Flat Roof Waterproofing
Flat roofs fail more often than pitched roofs for one reason: water sits on them. We waterproof concrete decks and flat roofs with torch-on and liquid membrane systems, prepared and applied properly so the system lasts, not a quick silver coat over a failing surface.
Read moreRising Damp Treatment
Bubbling paint and crumbling plaster along the bottom of your walls is usually rising damp, ground moisture wicking up through the brickwork. Painting over it never works. We diagnose the source, install a proper damp course treatment, replaster with the right materials and repaint once the wall has dried.
Read moreConcrete & Slab Waterproofing
Concrete is porous and lets water through over time. Balconies, exposed slabs, basement walls and concrete roofs all need proper waterproofing membrane systems to stay dry. We assess the substrate, repair any cracks first, then apply the right system for long-term protection.
Read moreDeck & Balcony Waterproofing
Concrete decks and balconies leak when their waterproofing membrane fails, and the water shows up in the room below weeks or months later. We assess the substrate, repair cracks and deterioration, then apply the appropriate pedestrian-grade waterproofing system for a deck that stays dry under foot traffic and weather.
Read moreWall Dampproofing & Penetrating Damp Treatment
Damp coming through exterior walls is either rising (from the ground) or penetrating (from outside through the wall). Each needs a different treatment. We diagnose which type you have, treat the actual cause, and only then restore the wall surface - because painting over active damp always fails.
Read moreOur Process
- 1
Free Consultation
Contact us any time, we'll discuss your project and provide a thorough, detailed, obligation-free quote.
- 2
Planning & Prep
We plan the work carefully, source durable, quality materials (never just the cheapest option), and prepare the site with care.
- 3
Expert Execution
Our team works fast and clean, keeping you updated in a professional and courteous manner throughout.
- 4
Final Walkthrough
We walk the finished work with you against the quote, and nothing is signed off until it meets our standard, and yours.
Frequently Asked Questions
What's the difference between rising damp and penetrating damp?
Rising damp comes up from the ground through walls; penetrating damp comes in through roofs, balconies and cracked walls. Each needs a different treatment, which is why we diagnose the true source before quoting.
When is the best time to waterproof?
Before the rainy season, while surfaces are dry and products can cure properly. In Bloemfontein that means late winter and spring are ideal.
How long does waterproofing last?
A properly applied system on a well-prepared surface typically lasts 5–10 years or more depending on the product and exposure. Preparation is what makes the difference, and it's where we don't cut corners.
Can you fix damp that keeps coming back?
Yes. Recurring damp almost always means the original repair treated the symptom, not the source. We find and fix the cause.
Do you waterproof showers and bathrooms?
Yes, wet-area waterproofing before tiling is one of the most important (and most skipped) steps in a bathroom renovation. We do it as standard.
Helpful Guides
Projects Like This
Rising Damp Treatment and Replastering - Universitas, Bloemfontein
Persistent damp and salt staining on interior walls in two rooms, concentrated in the lower 600–800mm of the walls. The homeowner had repainted these areas twice but the paint bubbled and peeled within months each time. White salt deposits (efflorescence) were appearing after each fresh paint application.
See full projectFlat Roof Waterproofing - Torch-On Membrane - Universitas, Bloemfontein
A flat roof section above a rear extension had developed multiple leaks. The existing painted waterproofing coat had blistered, cracked and peeled after years of UV exposure and Bloemfontein's temperature cycling. Three separate leak points were showing as ceiling stains in the extension below.
See full projectOur Waterproofing Work
RoofingAfdak Installed
Supply and installation of a lean-to IBR sheet afdak (patio cover) against an existing house. Steel column supports, IBR corrugated sheeting painted to match the existing roof colour, flashing and waterproofing at the wall junction, and guttering to channel rainwater away. Clean finish that blends into the existing roofline.
See all jobs
RoofingRoofs Sealed
Waterproofing and sealing of multiple tiled roofs in Bloemfontein. Ridge caps repointed and sealed with waterproof membrane coating, valley flashings replaced and sealed with bitumen-backed flashing tape, and the full tile surface treated with a penetrating roof sealer. Work carried out across several properties in one run.
See all jobs
RoofingCustom Afdak Build
Design and construction of a large custom afdak (lean-to shelter) at a residential property in Bloemfontein. Steel uprights were set and a full corrugated iron roof structure was built out from the existing building, creating a wide covered outdoor area. The afdak spans the full width of the yard and provides permanent shade and weather protection for the space below.
See all jobsWhat a Recent Client Said
"Finally resolved after years of failed paint patches. Nexus diagnosed it correctly first visit and the treatment has held for over a year now."
C. du Plessis, Universitas
Related Services
Need waterproofing in Bloemfontein?
Get a thorough, detailed, obligation-free quote from Bloemfontein's owner-led, 4.8-star rated team. Quoted properly, done properly, built to last. Open 24/7.