Damp Proofing Services

Damp Proofing Services Menu

Explore our complete range of moisture control and waterproofing services, built to handle South African conditions, tailored for homes and buildings in Krugersdorp, Roodepoort, and Randburg.

✔ Signs of Damp

Cracked plaster, flaking paint, musty odors, or warped flooring? These aren't cosmetic issues, they're red flags. We decode visible and hidden signs across roofing, walls, and basements to ensure no damp zone goes untreated.

✔ Damp Treatments

We don’t patch, we protect. From chemical DPC injections and membrane systems to slope correction and foundation tanking, every treatment is tailored for your structure, budget, and local conditions.

✔ Causes of Damp

We trace damp to its root using real-world diagnostics and structural insight, no guesswork. Whether it’s rising damp, roof leaks, cracked walls, or ground-level moisture migration, we identify the source before any treatment begins.

Jump to Causes of Damp ➜

Jump to Signs of Damp ➜

Jump to Damp Treatment ➜

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Advanced Moisture Control for South African Homes

At Environmental Pro Construction, damp proofing is not just a fix, it’s a system-based solution. We implement engineer-backed, SANS 10400-compliant strategies to protect your property’s structural health and your family's well-being.

We tailor moisture control solutions to the specific source, location, and severity of damp, whether it’s rising damp in foundations, water ingress through parapet walls, or condensation buildup from poor ventilation.

Key elements of our moisture control approach include:

• Source Identification – We perform a full inspection to determine if the damp is caused by plumbing, ground moisture, cracks, roof faults, or poor detailing.

• Targeted System Design – We use methods like chemical damp-proof course (DPC) injections, membrane installation, surface waterproofing, and breathable wall coatings where appropriate.

• Holistic Property Assessment – Our solutions address water management as a whole, roof drainage, subsoil conditions, plaster types, and vapor balance are all part of the scope.

💧 Causes & Consequences of Damp in South African Homes

Damp problems don’t appear overnight, they develop over time from overlooked issues that most homeowners miss. In South Africa, climate conditions, ageing infrastructure, and poor construction practices are common culprits.

Common Causes of Damp:

• Rising Damp – Ground moisture rising through porous walls due to failed or missing DPC layers.

• Penetrating Damp – Lateral water ingress from cracked walls, leaking parapets, or unsealed joints.

• Roof & Gutter Faults – Overflowing gutters or roof leaks directing water into ceilings and wall cavities.

• Condensation – Often due to poor ventilation in bathrooms, kitchens, or basements.

• Subsoil Water Pressure – Especially in below-ground spaces like basements or retaining walls.

Consequences if Left Untreated:

• Structural Damage – Water weakens plaster, corrodes metal reinforcements, and disintegrates bricks over time.

• Health Risks – Damp creates the perfect environment for black mould, dust mites, and spores.

• Devaluation of Property – Buyers will often walk away from homes with visible damp or moisture stains.

• Increased Energy Bills – Damp walls hold moisture, reducing insulation and requiring more heating.

Early intervention saves thousands. Our goal is to treat the cause, not just the symptoms.

🟩 Rising Damp – South African Ground Moisture

Cause:

Occurs when ground moisture travels up through porous bricks or mortar, usually due to an absent or failed damp-proof course (DPC). This is especially common in older South African homes.

Signs to Look For:

• Peeling paint near floor level

• Salt deposits (efflorescence) on walls

• Crumbling skirting boards or plaster

Understanding Rising Damp:

This type of damp behaves like a wick, drawing groundwater upward into the walls. Unlike leaks or exterior water entry, rising damp comes from beneath and requires specific treatment. It tends to spread horizontally and damage finishes at the base of internal walls, especially where breathable plasters are lacking or cement renders have trapped moisture.

Most affected homes were either never built with DPC membranes or have experienced structural shifting that cracked or displaced those barriers over time.

🟦 Penetrating Damp – External Wall Entry

Cause:

Water enters through the exterior of a wall, usually due to cracks in rendering, porous bricks, damaged pointing, or leaky gutters and down-pipes.

Signs to Look For:

• Localized damp patches that worsen with rain

• Damp appearing mid-wall or ceiling level

• Peeling paint, bulging plaster, or black mould

• External signs: efflorescence or moss on walls

Understanding Penetrating Damp:

Penetrating damp is caused by water entering laterally through the exterior walls of a building, not from the ground, but from the outside in. It’s often linked to cracks in rendering, damaged pointing, porous bricks, or defective gutters and down-pipes that direct water toward rather than away from walls.

Unlike rising damp, which appears near the floor, penetrating damp can affect any height of the wall depending on the source of water entry. Moisture typically seeps through weak spots during heavy rains, spreading horizontally behind plaster or insulation. Over time, this leads to musty smells, paint damage, and the growth of mould or moss, particularly on south-facing walls with lower sun exposure.

🟫 Condensation Damp – Poor Ventilation Warning

Cause:

Caused by warm, moist air hitting cold surfaces inside the home, often due to poor ventilation in kitchens, bathrooms, or laundry rooms.

Signs to Look For:

• Water droplets on windows or walls

• Black mould forming around corners or frames

• Musty odors that linger, especially after showers or cooking

• Damp concentrated in habitable living spaces, not just external walls

Understanding Condensation Damp:

Condensation damp is often misunderstood but very common in modern South African homes. It forms when warm, moisture-laden air comes into contact with cooler surfaces, like un-insulated walls, ceilings, or windows. This sudden temperature difference causes water vapor to condense into liquid, especially in areas like bathrooms, kitchens, and laundry spaces where steam and humidity levels run high.

Unlike rising or penetrating damp, condensation doesn’t come from external sources, it is generated internally, and usually worsens in winter when windows stay shut and ventilation is poor. Over time, black mould grows on corners and ceilings, paint peels, and surfaces feel cold and damp. Without treatment, it poses serious health risks, especially for children, the elderly, and those with asthma.

🟥 Lateral Damp – Horizontal Spread Near Basements

Cause:

Water travels sideways through a wall, usually due to external pressure from soil (in basements or retaining walls), or when the outside surface is not properly sealed.

Signs to Look For:

• Horizontal patches of moisture on mid-wall level

• No clear plumbing leak nearby

• Common near stairs, basements, or built-in planter boxes

• May appear even with gutters and roofs intact

Understanding Lateral Damp:

Lateral damp is often confused with leaks, yet it stems from external soil pressure, not faulty plumbing. It typically affects underground or partially below-ground structures, like basements, retaining walls, or walls built against embankments. Moisture from the surrounding soil forces its way horizontally through walls, especially where exterior waterproofing is missing, deteriorated, or improperly applied.

Unlike rising damp, which travels vertically, lateral damp creeps sideways, leaving distinct horizontal moisture lines. It's especially prevalent in older homes or properties built into slopes without proper foundation waterproofing. Areas near planter boxes, stairs, and ground-contact walls are common hotspots.

Correct diagnosis is vital, as visible damage often appears long after the wall has been compromised. Sealing just the inside won't stop the pressure; external intervention is key.

Without the right expertise, damp can mask its true source, leading to costly misdiagnoses and ineffective repairs. That’s why a professional damp survey is essential. At Environmental Pro Construction, our surveyors don’t just treat the symptoms; we trace the problem to its root and design a solution tailored to your property’s unique conditions.

Need a Solution? Contact Us Today.

Recognizing the Signs of Damp

Damp rarely makes its presence obvious until the damage is already well underway. What looks like a simple paint bubble or faint discoloration may be the first visible symptom of deeper moisture intrusion behind your walls or floors. At Environmental Pro Construction, we help homeowners and property managers across South Africa identify these early warning signs before structural decay, respiratory hazards, or costly renovations arise.

Typical symptoms include peeling paint, bulging plaster, black mould, mildew odors, and persistent damp patches that don’t respond to surface repairs. These aren’t just aesthetic issues, they’re red flags of possible rising damp, condensation, lateral seepage, or penetrating water entry. Proper diagnosis is crucial, because each type of damp requires a targeted solution to prevent re-occurrence.

We guide you in understanding the root cause, not just treating the symptom, ensuring your property is protected from both visible damage and the hidden consequences of long-term damp exposure.

🟩 Cracked, bubbling paint

This stairwell wall shows clear signs of moisture intrusion. The bubbling, cracked, and peeling paint is a classic symptom of trapped damp behind the plaster. Often caused by capillary action (rising damp) or lateral water movement from adjacent surfaces, this damage is more than cosmetic. If left untreated, it can compromise the structural integrity of both internal and external walls.

At Environmental Pro Construction, we don’t just treat the surface. We identify the source and implement a lasting solution using proven waterproofing and repair systems.

🟩 Damp Damage Behind Bathtub from Poor Sealing and Ventilation

Bathrooms are one of the most common areas for damp-related issues due to steam and water exposure. This image reveals plaster degradation behind a bathtub, caused by condensation, poor ventilation, and failed waterproofing at wall-floor junctions.

At Environmental Pro Construction, we apply moisture-zone-specific systems, including wall tanking, anti-mould treatments, and sealing to ensure long-term protection in wet areas.

🟩 Water Ingress on Concrete Ceiling with Efflorescence and Structural Staining

This image highlights water ingress through a concrete ceiling slab, often due to poor waterproofing above or cracks in the slab. The white efflorescence and dark stains indicate salt migration, which can corrode internal steel reinforcement over time.

At Environmental Pro Construction, we tackle slab damp with injection waterproofing, membrane systems, and structural repair solutions, always aligned with SANS 10400 standards.

🟩 Rising Damp on Interior Wall Near Skirting Line

This section of wall clearly shows signs of rising damp, a ground moisture issue that moves upward through capillary action when damp-proofing is compromised or absent. You’ll notice the discolored tide mark, crumbling paint, and salt blooms (efflorescence), all common with this type of damp. These areas are often mistaken for plumbing leaks, but the tell-tale line near the skirting is a giveaway.

🟩 External Wall Showing Combined Rising and Penetrating Damp

This exterior corner reveals dual signs of rising and penetrating damp. The darker blotches near the paving level point to moisture wicking up through capillary action, a clear case of rising damp aggravated by a compromised or missing DPC. Simultaneously, the concrete ramp at paving level likely allows rainwater to collect and absorb directly into the wall, leading to penetrating damp ingress.

🟩 Weather-Exposed External Wall with Moisture and Plaster Erosion

This external wall tells a clear story of prolonged water exposure and structural neglect. The discolored vertical runs, plaster delamination, and eroded facade highlight the effects of penetrating damp, combined with UV exposure and thermal expansion over time. The corner exposure and proximity to guttering make this wall highly vulnerable.

At Environmental Pro Construction, we resolve rising damp with targeted DPC injection, breathable plaster systems, and sub-floor drainage if required, always tailored to site-specific conditions and in line with SANS 10400 regulations.

At Environmental Pro Construction, we trace every route of water entry, from roof-line to foundation, and restore your external envelope with engineer-approved damp proofing solutions that last in South African conditions.

At Environmental Pro Construction, we address both ground-level causes and surface permeability using SANS 10400-compliant damp proofing techniques tailored for South African conditions.

This image reveals extensive black mould infestation caused by trapped humidity, poor ventilation, and inadequate waterproofing at ceiling level, often from above-floor damp or condensation build-up.

🟩 Severe Black Mould Growth on Bathroom Ceiling

Captured beneath a stair slab, this image shows rust leaching down the wall, clear evidence of water migration from structural steel above. This often indicates compromised slab waterproofing or slab edge failure, where moisture infiltrates and reacts with embedded re-bar or metal elements, causing oxidation.

This image captures plaster bubbling and surface blistering caused by trapped damp behind a curtain drop, an area prone to moisture retention due to limited airflow. These symptoms often result from lateral damp intrusion via cracked exterior walls, window sill leakage, or failed waterproofing at the roof-line.

🟩 Rust Streaks and Damp Patches from Slab Water Ingress

🟩 Wall Blistering Behind Curtain, Trapped Damp and Surface Breakdown

Mould like this isn’t just unsightly, it poses serious health risks and signals a deeper moisture issue.

Over time, this leads to wall staining, plaster decay, and concrete corrosion, which jeopardizes structural integrity.

At Environmental Pro Construction, we resolve such issues through advanced slab membrane systems, injection waterproofing, and structural sealing, all engineer-approved and aligned with SANS 10400 durability standards.

At Environmental Pro Construction, we don’t just remove the mould, we resolve the root causes through improved moisture barriers, anti-mould treatments, and SANS 10400-compliant waterproofing tailored for South African high-humidity zones.

The proximity to a window further suggests thermal bridging or inadequate sealing.

At Environmental Pro Construction, we trace these hidden pathways and resolve the issue using breathable plaster repairs, moisture-tolerant coatings, and tailored damp remediation, protecting both finishes and structure long-term.

Without the right expertise, signs of moisture like rust, mould, or bubbling paint can easily mask the true source of damp, leading to misdiagnosis, ineffective repairs, and repeated damage. That’s why a professional damp survey is essential. At Environmental Pro Construction, we don’t just treat what’s visible, we trace the source of the problem, identify the hidden moisture pathways, and deliver engineer-backed waterproofing tailored to your property’s unique conditions.

Need a Solution? Contact Us Today.

🛡️Proven Damp Treatments for Lasting Protection

At Environmental Pro Construction, we offer tailored solutions to tackle damp at its source, whether it's rising damp, poor ventilation, or lateral moisture ingress. Each treatment is engineered to deliver long-term results, backed by decades of experience and strict compliance with South African building standards.

Rising Damp Treatment

Moisture travels upward from the ground through porous masonry due to the absence or failure of a damp-proof course (DPC).

• Chemical DPC Injection – A specialized damp-proof cream is pressure-injected into horizontal mortar lines, forming a new, water-repellent barrier.

• Salt-Resistant Re plastering – Contaminated plaster is stripped, and walls are re-rendered with breathable, salt-resistant materials that prevent future moisture and salt migration.

• Skirting & Finish Restoration – Damaged skirting's, paint, and floor-level finishes are replaced with materials suitable for damp-prone zones.

Treatment Approach:

Cause:

• Crack Repairs & Re-pointing – Open joints, gaps, and deteriorated mortar are cleaned and refilled to seal water entry points and restore brick integrity.

• Waterproof Coatings & Sealants – We apply breathable, weatherproof barriers to external walls, preventing future rain ingress while allowing trapped moisture to escape.

• Gutter & Down-pipe Correction – Faulty drainage systems are repaired or re-routed to stop recurring water exposure to vulnerable walls.

We install premium-grade membranes beneath floors and within walls to block water penetration and create a durable moisture barrier.

Treatment Approach:

Moisture seeps through the exterior envelope of the building due to cracks, porous materials, or damaged gutters and down-pipes. It typically affects mid-wall or ceiling levels.

Penetrating Damp Treatment

Cause:

• Ventilation Upgrades – We install passive (grilles, trickle vents) or active (mechanical extractor fans) systems to improve indoor airflow and reduce moisture buildup.

• Dehumidifier Installation – In moisture-prone areas, we recommend or install energy-efficient dehumidifiers to regulate indoor humidity levels.

• Thermal Improvements – Where necessary, we insulate cold walls, ceilings, or roof voids to reduce the temperature differential that causes condensation, helping prevent mold and mildew reappearance.

Treatment Approach:

Condensation occurs when moist indoor air comes into contact with cold surfaces like walls, ceilings, or windows. It's most common in poorly ventilated spaces such as bathrooms, kitchens, or laundry rooms.

Condensation Damp Treatment

Cause:

Treatment Approach:

Lateral damp occurs when moisture moves sideways through the wall, typically from adjacent soil pressure in areas such as basements, planter boxes, or retaining walls. Unlike rising damp, this form is driven by hydrostatic pressure rather than capillary action.

Lateral Damp Treatment

• Bituminous or Cementitious Waterproofing – Heavy-duty exterior-grade coatings are applied to outer wall surfaces to block lateral water movement and prevent soil moisture from seeping through.

• Membrane Installation – High-performance membranes (cavity drainage or tanking systems) are installed either externally or internally to create a long-lasting barrier where water pressure is severe.

• Subsoil Drainage Systems – Where necessary, we integrate French drains or weep systems to relieve water build-up and safely divert it away from the building foundation.

Cause:

Don’t wait for stains or crumbling plaster. By treating damp at its origin, we help you protect your home or building in Krugersdorp, Roodepoort, and Randburg, keeping it dry, healthy, and structurally sound, year-round.

• Targeted diagnosis, using professional moisture mapping not guesswork

• SANS 10400-compliant treatments, with engineer oversight where required

• Minimal disruption, with clean and efficient solutions completed within days

• Long-term value, preventing future mould, decay, and structural repair costs

At Environmental Pro Construction, we know that proper damp treatment is never a one-size-fits-all solution. Properties in Krugersdorp, Roodepoort, and Randburg each face unique structural conditions, from poor drainage gradients in Rant En Dal, to ageing walls in Roodepoort’s older suburbs, and humid interiors in compact Randburg builds. That’s why we don’t just patch visible signs, we tackle the actual source.

Why Correct Damp Treatment Matters

Our approach ensures:

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Damp may start in your walls, but it doesn’t stay there. It releases spores, toxins, and allergens that affect your lungs, skin, immune system, and even your peace of mind. When left untreated, damp becomes a compounding health risk for your entire household, including your pets.

Health Risks of Damp – How It Affects Your Family, Pets, and Property

• Respiratory Illnesses

  
  Damp conditions encourage black mould growth, which releases mycotoxins that worsen asthma, bronchitis, chronic coughing, and sinus infections. Children and the elderly are especially vulnerable.

• Skin & Eye Irritation

  
  Mould spores can cause red, itchy eyes, rashes, and dry, irritated skin, especially in people with sensitive immune systems.

• Allergies & Chronic Fatigue

  
  Poor indoor air quality caused by damp increases exposure to dust mites, mildew, and VOCs, leading to chronic tiredness, sneezing, wheezing, and ongoing allergic responses.

• Fungal Infections

  
  In high-moisture environments, some species of airborne fungi pose serious risks to immuno-compromised individuals, leading to infections that require urgent medical attention.

• Mental Health Decline
  Numerous studies have shown that mould-infested homes contribute to stress, insomnia, depression, and even cognitive fog due to low air oxygenation and odor toxins.

Human Health Impacts – The Hidden Cost of Living with Damp

• Respiratory Distress in Cats & Dogs

  
  Pets breathe closer to the floor, where mould spores concentrate. Chronic exposure can lead to laboured breathing, sneezing, and even asthma-like symptoms.

• Fungal Skin Infections & Irritation

  
  Damp-loving fungi like ringworm thrive in humid conditions and can infect pet fur and skin, especially in cats, dogs, and rodents.

• Weakened Immune Response

  
  Constant exposure to hidden allergens weakens pets’ natural defenses, leaving them prone to frequent illness, lethargy, and digestive upsets.

• Toxic Ingestion

  
  Pets that lick mould-contaminated surfaces (walls, floors, windowsills) can ingest toxic spores that affect the liver, kidneys, and nervous system.

How Damp Affects Pets – The Overlooked Health Risk

At Environmental Pro Construction, we understand that a home isn’t just bricks and mortar, it’s where your family lives, breathes, and grows. That includes your children, pets, loved ones, and yourself.

Healthy Buildings. Healthy Living. That’s Our Standard

Need a Solution? Contact Us Today.

Our Commitment: Protecting Your Home the Right Way

At Environmental Pro Construction, we know that damp problems across Krugersdorp, Roodepoort, and Randburg require precision, not generalizations. From older homes in Krugersdorp West to modern townhouses in Randburg and commercial buildings in Roodepoort, each structure presents its own unique conditions.

That’s why we offer tailored, engineer-backed damp treatment solutions designed to match your specific needs, whether you're dealing with rising damp under floors, penetrating moisture through boundary walls, or condensation in sealed interior spaces.

We don’t cut corners. We solve the root cause.

Why Homeowners and Businesses in Krugersdorp, Roodepoort & Randburg Trust Us

From rising damp in Krugersdorp West, to retaining wall seepage in Roodepoort, and condensation problems in Randburg flats, we understand how seasonal rains, aging foundations, and poor site drainage affect properties across these areas. Our damp solutions are tailored to the building’s location and structure, not copied and pasted from elsewhere.

We don’t hide costs. Every quote includes a line-item breakdown of labour, materials, and any engineer sign-offs, where applicable. You’ll know exactly what you’re paying for, with no hidden fees and no surprises.

Our systems are not surface quick-fixes. Every treatment is SANS 10400-compliant, engineer-approved, and built to prevent recurrence, whether it’s a membrane barrier, external sealant, or drainage solution.

✅ Local Insight for Local Conditions

✅ Honest Pricing & Clear Scope

✅ Proven Solutions That Last

We don’t just work here, we live in this community. From Rant En Dal and Noordheuwel to Krugersdorp North, we know the quirks of local properties and the challenges posed by climate, soil, and structure. With fast response times and a hands-on approach, we offer the kind of dependable service only a local team truly invested in quality can deliver.

You won’t get sales talk from us. At Environmental Pro Construction, we take the time to diagnose the root cause of moisture problems, whether it’s hidden wall seepage or trapped humidity. Our recommendations

We ensure each method is tailored to your property’s needs and backed by proven results.

• Chemical damp proof course (DPC) installations

• Basement tanking and waterproofing

• External wall waterproofing

• Cavity drainage systems

• Ventilation and moisture control improvements

✅ We Solve Problems, Not Up-sell You

✅ Local Experts You Can Count On

Get in Touch – Real Solutions, Real People

Whether you're facing rising damp, cracked walls, or just want honest guidance before you commit, we're here to help.

📞 Reach Us Directly:

061 487 1705

📧 Email Us: info@enviropconstruction.com

📍 Based in Krugersdorp, proudly serving West Rand, Randburg, Roodepoort, and surrounding Gauteng regions.

(Monday – Saturday | 7:30 AM – 6:00 PM)

Frequently Asked Questions (FAQs) – Damp Proofing Services

At Environmental Pro Construction, we believe in clarity and transparency when it comes to protecting your property. Our damp proofing solutions are designed to keep your walls, floors, and foundations safe from moisture damage. Below, we answer the most common questions homeowners and business owners ask us about damp proofing in the West Rand, Randburg, and Roodepoort areas.

1. What areas do you serve for damp proofing?

We serve homeowners and businesses throughout Krugersdorp, Roodepoort, and Randburg, offering fast response times and region-specific solutions tailored to Gauteng’s climate and building styles.

2. What types of damp do you treat?

We diagnose and treat:

• Rising damp (from the ground up)

• Penetrating damp (through walls or roofs)

• Lateral damp (through basements and retaining walls)

• Condensation issues (often in kitchens, bathrooms, and poorly ventilated spaces)

Each treatment is custom-specified to the cause and complies with SANS 10400 guidelines.

3. How do I know if I have a damp problem?

Common signs include:

• Peeling paint or blistering walls

• Mold or mildew smells

• Discoloration on internal walls

• Crumbling plaster near the floor

• High humidity or condensation buildup

Each treatment is custom-specified to the cause and complies with SANS 10400 guidelines.

4. How long does treatment take?

Most projects are completed within 2 to 5 days, depending on the severity and size. We aim for minimal disruption and leave every site clean and sealed.

5. Do you offer guarantees or aftercare?

Yes, we provide a 5-year workmanship guarantee on all damp repairs. Our solutions are engineer-backed and compliant with SANS 10400 Part C and L for structural and moisture performance.

6. Is damp dangerous to my health or pets?

Yes. Damp leads to:

• Mold spores, which worsen asthma and allergies

• Skin irritation and respiratory problems in children

• Pet discomfort, especially for breeds prone to sinus or skin issues

Prompt treatment prevents long-term exposure for your family and pets.

7. Is this covered by insurance?

Most insurance providers do not cover damp from poor maintenance or age. However, we supply detailed inspection reports for you to submit in support of your claim, if eligible.

8. How much does it cost?

Pricing depends on:

• The type of damp

• The size of the affected area

• The method of treatment

We provide transparent quotes after inspection, no generic pricing, no hidden fees.

9. When can you come inspect?

We’re often available within 24–48 hours for properties in Krugersdorp, Roodepoort, and Randburg. Early booking is recommended, especially during wet months.

10. What payment options are available?

We accept:

• EFT

• Credit & debit cards

• Staged payments for larger jobs

A deposit confirms booking; final payment is due after completion and walk-through.

A deposit confirms booking; final payment is due after completion and walk-through.

💬 Still have questions? We’re happy to assist. Book your free assessment today and let us provide honest advice you can trust.