Basement Waterproofing
Protect your property from water ingress, damp, and structural damage with BS8102-compliant waterproofing solutions, expertly designed and installed by Cannon Clarke.
basement waterproofing
What is Basement Waterproofing and How It Protects Your Property
Basements and below-ground structures are naturally vulnerable to issues such as water ingress. Without the right protection, moisture can seep through walls and floors, leading to damp, mould growth, and even structural damage.
Basement waterproofing is the process of preventing water from entering these spaces, ensuring they remain dry, safe, and usable for years to come.
In the UK, high rainfall levels, rising groundwater, and localised flooding make effective basement waterproofing essential.
Poor or outdated systems can put your property at risk, while incorrect installations may fail to meet BS 8102:2022, the British Standard for the protection of structures against water from the ground.
At Cannon Clarke, we specialise in designing and installing tailored waterproofing systems that meet or exceed BS8102 requirements. Our team of Certificated Surveyors in Structural Waterproofing-qualified surveyors and technicians combine proven techniques with industry-leading materials to deliver long-lasting protection you can trust.
Whether you’re building a new basement or upgrading an existing one, we provide solutions that keep water out and value in.
You may have an existing waterproofing system that is starting to fail. We can replace old systems with the latest technology, so you can be confident that your underground spaces are protected from damp and rot.
Why Basement Waterproofing Is Essential for Protecting Your Property
Without proper basement waterproofing, below-ground spaces are highly susceptible to water ingress. Over time, moisture can penetrate walls and floors, creating conditions that lead to:
- Structural Damage – Water can weaken concrete, corrode steel reinforcements, and cause walls to crack or bow.
- Mould and Damp – Persistent dampness encourages mould growth, which can damage interiors and impact indoor air quality.
- Loss of Property Value – A damp or flooded basement can significantly reduce your home’s market appeal and resale price.
- Increased Repair Costs – Once water damage occurs, repairs can be complex and expensive, often requiring structural intervention.
In the UK, these risks are increased by high rainfall levels, fluctuating water tables, and the potential for localised flooding. A properly designed and installed waterproofing system protects against these threats, keeping your basement dry, safe, and ready for use.
What Projects Require Basement Waterproofing?
Typically, the projects that require basement waterproofing include:
- Converting your basement at home
- New build homes
- Swimming pools in leisure centres or hotels
Applying compliant structural waterproofing techniques to your building will ensure that:
- Your building is protected from the ingress of groundwater through the walls and floors
- Your basement avoids any issues with damp
- Your cellar and other underground vaults remain dry and structurally sound
Our Approach to Basement Waterproofing Design & Installation
Every property is different, which is why we never take a one-size-fits-all approach. At Cannon Clarke, we combine technical expertise, industry accreditation, and proven systems to deliver basement waterproofing solutions that stand the test of time.
1. Comprehensive Survey & Assessment
Our CSSW-qualified surveyors carry out a detailed on-site inspection to identify water ingress risks, assess structural integrity, and understand how you plan to use your basement. We also consider soil conditions, local water table levels, and any existing waterproofing measures.
2. Tailored Waterproofing Design
Using our findings, we design a system that meets your specific needs, property type, and budget. We ensure all designs align with British waterproofing guidelines for long-lasting protection.
3. Expert Installation
Our skilled technicians install your basement waterproofing system with precision and care, using industry-leading materials and techniques. We follow strict quality control processes to ensure every stage of the installation is completed to the highest standard.
4. Final Checks
Before we sign off, we carry out rigorous testing to confirm the system is fully operational and compliant.
Quality Guaranteed
Trusted, Qualified Basement Waterproofing Contractors
You’re in safe hands with our Certificated Surveyors in Structural Waterproofing, which is the gold-standard qualification for the work we do.
Cannon Clarke Ltd is:
- A long-standing member of the British Structural Waterproofing Association
- Approved waterproofing contractors with Vandex International (since 1988)
- Approved contractors for all Delta waterproofing systems (since 2003). Our Installer Registration number is 5079.
- Verified by BS:8102-2022 standards, so all our work meets quality criteria.
We’re validated by the key players in our industry.
Innovative and Reliable Basement Waterproofing Products
Every product we use in your project is carefully selected to give you the very best long-term performance. We review all the available installation systems regularly to make sure that you’re receiving the most up-to-date technology. That’s how we’ve developed our reputation for integrity and a conscientious service.
Our Process
Survey
We start by conducting a thorough survey of the space you want inspected. There's usually a fee for our initial consultation.
01
Scoping discussion
We collaborate with you to marry your objectives with our findings from the survey. We’ll discuss how you want to use the space when it’s finished and the best way of achieving your vision.
02
Design
Once we have the physical specifications, and your input on your requirements, we’ll design a system that works for you.
03
Approval
We’ll send you a specification, together with a report which explains the technical aspects. We’re happy to chat through this with you and make any changes you’ve identified.
04
Work begins
With an approved plan in place, we’ll get to work on the date we’ve agreed between us.
05