Sydney’s Specialists In Rising Damp Solutions
Rising Damp Solutions – The Truth About Rising Damp
...after reading this page, you’ll gain knowledge about Rising Damp Solutions that most companies don’t want you to know!
(Please read this page before calling)
Watch the video below, now.
(3-minute rising damp explainer)
The Above Video Is A Detailed Explanation of How Rising Damp Functions.
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Here's What Rising Damp Is NOT
- Rising Damp is not damp smells.
- Rising Damp is not mouldy clothes.
- Rising Damp is not mould only on your shoes.
- Rising Damp is not mould only in your cupboards.
- If you have timber floors with soil underneath and notice mould in your home only, you most likely just need subfloor ventilation. You can, however, have both issues — deteriorating masonry from Rising Damp and mould from poor ventilation. In this case, you may require both ventilation and Rising Damp Treatment.
- A Rising Damp Treatment will 99% of the time not change the air conditions in your house to prevent mould if you have timber floors with soil below. Most household mould in this situation comes from moisture rising out of the soil when the ground becomes saturated after rain.
- Water naturally spreads through soil — similar to osmosis. If the soil in your suburb becomes waterlogged after heavy rain, the soil beneath your house will also become wet, increasing humidity under timber floors.
- If you’re only experiencing mould or mildew, a ventilation system will usually resolve the problem without the need for Rising Damp Solutions.
- If you have Rising Damp appearing ONLY around your bathroom and nowhere else in your home, the issue is most likely a failed bathroom waterproofing membrane. A temporary fix generally costs between $2,000–$3,000, while a full bathroom renovation can cost upwards of $15,000.
- If you only have damp smells or mould — and none of the other symptoms below — the problem is likely poor underfloor ventilation. In that case, installing a subfloor ventilation system is the right solution.
What does rising damp look like?
Common signs of rising damp
- You have pimples appearing in your paint.
- There are holes appearing in your paint and sand is comming out from the holes.
- Your skirting boards have pimples and/or discolouration.
- Mortar (cement) is falling out from between your bricks as dust and you can see gaps between your bricks.
- Some of your bricks look like they are pitted and are no longer smooth compared to the other bricks on your building.
- You can see paint coming off the wall and when you touch it, there is a rough feeling of the sand under the paint, and a crunchy sound.
- Rising Damp is specifically moisture rising vertically through masonry by capillary action from below the structure.
- The rising moisture carries dissolved salts that crystallise and expand, causing physical damage to the masonry.
- It’s not the water that damages masonry — it’s the salts. Water carries them. Chemical injection stops further rising damp, preventing new salts from moving up the wall.
- Sandstone: The corners of the sandstone are rounded and/or the sandstone is becomming concave on its face.
- Sandstone: The sandstone is becomming concave on its face.
- Sandstone: There is mortar missing from between the sandstone blocks.
How does rising damp happen?
What actually causes rising damp
- Rising Damp is specifically moisture rising vertically through masonry by capillary action from below the structure.
- The rising moisture carries dissolved salts that crystallise and expand, causing physical damage to the masonry.
- It’s not the water that damages masonry — it’s the salts. Water carries them. Chemical injection stops further rising damp, preventing new salts from moving up the wall.
When damp walls aren’t caused by rising damp
Situations that require further diagnosis
- If your home is built on a concrete slab and you notice damp floors or wet walls, there may be multiple causes that require on-site diagnosis. Call us so we can assess the issue in person.
- If your house is cut into a hill — common in the Eastern Suburbs, Lower North Shore, and Northern Beaches — and your walls are retaining soil (a typical basement waterproofing situation), this is a waterproofing issue. We can definitely help. Our team are experts in Basement Waterproofing and Rising Damp Solutions.
- When you have NO eaves on your building and there are gaps around your windows which allow water to enter the wall.
- External ground levels which is higher than internal floor level (driveways and pathways)
- If your building is waterfront and is exposed to a very high salt environment.
- Any basement situation where walls are retaining soil
- External stairs which are built hard against the wall.
- Your skirting boards are rotting and falling to pieces.
Let me be black and white.
We use the BEST Rising Damp System in the world.
Why?
It’s not to impress anyone — and it’s definitely not the cheapest option on the market.
I use it because it gives the lowest risk of failure for me and for you.
Every Rising Damp Solution I install comes with a 27-year warranty. If it ever fails, I’m the one who has to come back and fix it — and that costs me money.
That’s why I only use the most reliable Rising Damp Products available. They don’t just limit my liability — they protect your property for the long term.
By using the best, I make sure you get the best. When I protect my work from failure, you gain ultimate security and confidence that your investment will last.
Summarised Explanation of Chemical Injection
- Rising Damp injection creates a waterproof barrier within the masonry at the base of the wall, stopping water from rising by capillary action.
- Once the upward movement of moisture is halted, no further new salts can be carried into the wall above the injection line — preventing additional damage from forming.
- However, any salts that were already deposited at the old evaporation point will remain in the wall above the new damp-proof course unless they are removed.
- These existing salts can be eliminated in one of two ways: Removing and re-rendering the affected walls, or, Applying the Cocoon Salt Removal System to draw salts out of raw, unpainted masonry surfaces.
- It’s always wise to understand Rising Damp thoroughly. Both the problem and its Solutions are based on clear, logical physics — and when applied correctly, they provide lasting protection for your property.
Below, you can read more about whether render removal is truly necessary — or if you can avoid that cost while still achieving an effective Rising Damp Treatment.
Why Salt in Masonry Attracts and Holds Moisture
Salts deposited by rising damp attract moisture from both the wall and the air, allowing dampness to persist even after the original water source is reduced.
The video above demonstrates why removing render is often recommended when treating Rising Damp.
- You don’t always need to remove the render, though. In some cases, there’s no visible damage, and the likelihood of future deterioration is low. This decision is made on a case-by-case basis after a proper inspection.
- Here’s an important insight that many Rising Damp Specialists won’t mention — if salt remains in the wall above a new damp course and isn’t removed, the installation can actually cause additional damage.
- While the wall is damp, salt stays dissolved in moisture. Once the wall dries, those salts crystallise and expand, pushing apart the masonry and worsening the damage.
- This is why precise diagnosis and careful Rising Damp Treatment planning are essential before any injection work is done.
How can you tell how much salt is in your wall from Rising Damp?
- In short, you can’t — not without laboratory testing of a physical sample. We can organise this for you, though it’s not a low-cost process.
- Generally, we assess salt activity through moisture meter readings, our trained eye, and years of diagnostic experience. Evidence such as patchy render, uneven finishes, or previous repair marks can indicate concealed Rising Damp damage.
- The best way to know what’s really happening is to contact us. We’ll inspect your Rising Damp problem and provide the right Solutions for your specific property.
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Our Services
providing reliable solutions for rising damp in sydney
Rising Damp. Solutions for Rising Damp
Rising Damp in Sydney is a common problem and we are specialists in rising damp. Click below to see our rising damp solutions.
Cocoon. Salt Removal
Basement waterproofing is one of the most difficult types of waterproofing. We have provided solutions for the most extreme basement waterproofing.
Fans. Sub-floor Ventilation
Dincel waterproofing is needed when you never want Dincel to leak. While dincel is sold as being waterproof, often it still leaks.
We can stop Dincel leaking.
Lateral Damp. Lateral Damp Proofing
Retaining walls or below ground walls need special treatment so the waterproofing doesn’t fail over time due to salt breaking the membrane. Learn More..