Specialists in Car Park & Ramp Waterproofing

We provide a full consultation to explain our advanced membrane waterproofing system and design a customised solution to protect car parks and ramps from water ingress and long-term damage.

injectable WATERPROOFING solutions

The Advantages of Our
Car Park & Ramp Waterproofing System

Car parks and ramps are constantly exposed to the elements, heavy vehicle traffic, and water runoff. Without proper waterproofing, moisture penetrates the concrete surface, leading to leaks, cracks, and long-term structural deterioration. Salt, oil, and chemical exposure from vehicles accelerate this process, creating an environment where concrete cancer and surface damage can develop quickly if left untreated.

Our car park and ramp waterproofing system is designed to stop water ingress at its source while withstanding the demanding conditions of high-use areas. The advanced membrane creates a seamless, durable barrier that prevents moisture penetration, while our patented SNSeal injectable technology provides deep protection by sealing cracks, joints, and porous substrates from within. Together, they form a dual-layer defence that safeguards both the surface and the structure below.

This combined approach not only prevents leaks but also reinforces the concrete, reduces the risk of corrosion, and extends the lifespan of car parks and ramps. It creates safer, drier environments for vehicles and pedestrians, while minimising the need for costly future repairs. By choosing our system, property owners secure long-lasting protection, lower maintenance costs, and complete peace of mind that their car parks and ramps will remain structurally sound and fully operational for years to come.

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The Problem: Concrete Cancer & Water Ingress

We started inside the top-floor apartment, where the tenant had reported persistent mould. A closer look at the ceiling revealed several fine cracks, which are clear signs that water had been making its way in from above. These weren’t just surface blemishes; they were active pathways for moisture, feeding mould growth and creating an unhealthy living environment.

From there, we moved up to the rooftop to trace the source. As we removed the perimeter flashings, the real issue became clear, concrete cancer was silently spreading beneath. The reinforcing steel (reo bar) embedded in the concrete had begun to corrode, expanding and causing the concrete to crack and break away. Left untreated, this kind of damage can seriously compromise a building’s structural integrity. It was clear we needed to act fast to stop further deterioration and restore proper waterproofing protection.

Get a Free Quote – Discover Why SNSeal is the Preferred Injectable Waterproofing Solution

The Challenge & Solution: Protecting Car Parks & Ramps

The Risks & Causes: Water Ingress in Car Parks & Ramps

Car parks and ramps are constantly exposed to the elements and heavy vehicle traffic. Rainwater, poor drainage, oil, salt, and chemicals all put pressure on the concrete surface. Over time, small cracks from structural movement, porous concrete, or failed membranes give water a way in. Once moisture begins seeping into the slab, the damage accelerates quickly, especially in high-use areas where wear and tear are relentless.

The Threat: How Water Damages Car Parks & Ramps

When water penetrates a car park or ramp, it attacks the reinforcing steel within the concrete. As the steel corrodes, it expands and cracks the surrounding slab — a process known as concrete cancer. This doesn’t just weaken the structure, it also creates pathways for more water to enter. On the surface, dampness leads to slippery conditions, potholes, and damage to line marking or finishes. Below the surface, the structure’s integrity is slowly eroded.

The Consequences: From Water Ingress to Structural Damage

If ignored, water ingress in car parks and ramps causes widespread damage. Cracks widen, spalling increases, and leaks spread into lower levels or adjoining structures. Mould and mildew thrive in damp areas, creating unhealthy conditions. Vehicles suffer corrosion from exposure to water and chemicals, while pedestrians face safety hazards. Repair costs escalate quickly, often requiring major remediation works that disrupt access and operations. In severe cases, untreated damage can render sections of a car park unsafe and unusable.

The Challenge & Solution: Protecting Car Parks & Ramps

Temporary fixes such as patch repairs or surface coatings may hide the symptoms but they do not solve the problem. True protection requires both surface and structural waterproofing. Our approach combines advanced membrane technology, which forms a seamless, durable barrier on the surface, with our patented SNSeal Injectable Waterproofing Sealant, which penetrates deep into cracks and porous concrete to seal water pathways from within.

Why SNSeal is the Superior Choice

SNSeal is engineered to handle the challenges of high-traffic, high-exposure environments like car parks and ramps. Unlike foams or poly products that deteriorate under stress, SNSeal creates a permanent watertight barrier inside the concrete. It stops active leaks, reinforces weakened slabs, and prevents future cracking. When paired with our membrane systems, it delivers long-term waterproofing protection that outperforms conventional methods. The result is a safer, more durable structure, reduced maintenance costs, and peace of mind that your car park or ramp will remain strong and serviceable for years to come.

Common Application Areas that require waterproofing

SNSeal performs exceptionally well across a wide range of structural elements:

Basement Waterproofing

Protecting Industrial and commercial basements with advanced solutions that stop active leaks during or after excavation—ensuring long-lasting structural protection and a dry, healthy environment."

Lift Pits & Elevator Shafts
Prevent water intrusion in these often challenging-to-reach areas.

Podiums, Planters & Rooftops
Ideal for sealing rooftop structures and planters prone to water leaks.

Foundation Concrete Slabs
Waterproof these surfaces to fend off moisture infiltration and prevent water damage.

Construction Joints
Treat expansion joints that can be vulnerable to water ingress over time.

Underground Structures
Secure tunnels and subway stations where water ingress poses unique challenges.

Secant Piles
Seal against groundwater seepage to protect foundational integrity.

Car Parks & Ramps
Waterproof car park slabs and ramps to protect against water damage.

Retaining Wall Waterproofing
Treating cracked or leaking concrete and block retaining walls with non-invasive sealant systems.

FAQS

Have Questions

We’ve heard it all. Here’s everything you need to know before working with us.

Do you have water pooling on the ground?

Are there stains on your walls?

Do you have mould or peeling paint?

Are there rust stains?

If you answered yes to any of these questions then chances are you have a leak and its time to call Stop and Seal!

I have utilised the services of Stop & Seal on several occasions and have found them to be reliable, professional, and most of all, come with a can-do attitude.

The SNSeal product is unique in its application, but most importantly it works, and I’ve seen great results when no one else was willing to attempt to solve an issue. I have great pleasure in recommending their services.

Wayne Syrch
Site Manager, Hutchinson Builders

We have been caretakers of Tweed Ultima Apartments for around 2+ years, At this time we have engaged Stop and Seal to do water leak rectification on 6 or more problem areas around the property.

Each leak has been assessed and whilst Stop and Seal have needed to attend to the same problem area more than once, the important thing is they have kept coming back out. All but 1 of our 6 issues have been resolved and some of these leaks have been issues over 12 years that no one else could fix. I highly recommend Stop and Seal their innovative rubber and activator and most of all their commitment to getting the job done.

Brett Cooper
Director, Tweed Ultima Apartments

Robbie and the team at Stop and Seal are at the top of the game.

They solved a water problem in our unit block that we had been dealing with forever. Now when it rains we aren’t nervous.

Craig Nickson

I have never seen a waterproofing solution work so well.

I wouldn’t hesitate to recommend Stop and Seal to anyone with water problems.

Phillip Jones

We have tried many options to try and stop the leaking in our basement carpark.

The boys from Stop and Seal rolled in and in a few day managed to fix a water problem we had been fighting for years.

Daniel Morgan
Hutchinson Builder

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