Cellar Waterproofing
Keep your cellar dry and secure with Cannon clarke
cellar waterproofing
At Cannon Clarke, we understand the importance of a dry, secure cellar. Our expert team, with over 30 years of experience, provides top-notch structural waterproofing solutions tailored to your specific needs. Whether you’re dealing with rising damp, penetrating damp, or structural water ingress, we have the expertise to protect your property.
Our Comprehensive Cellar Waterproofing Services
- Internal Waterproofing Systems
Our internal basement waterproofing systems are designed to create a robust barrier against water ingress. We use advanced waterproof membranes and cementitious coatings to protect your cellar walls and floors from moisture penetration.
- Waterproof Membranes: We apply high-performance waterproof membranes to the internal surfaces, ensuring a durable and effective barrier against water.
- Cementitious Coatings: Our cementitious coatings provide an additional layer of protection, sealing any potential entry points for water.
- Cavity Drainage Systems
For cellars prone to high water levels, our cavity drainage systems offer an efficient solution. These systems channel water away from your cellar, keeping it dry and usable.
- Cavity Drain Membranes: We install cavity drain membranes that direct water to a drainage system, preventing it from accumulating in your cellar.
- Sump Pumps and Drainage Channels: Our high-quality sump pumps and drainage channels effectively manage water levels, ensuring your cellar remains dry.
- External Waterproofing Solutions
In addition to internal waterproofing, we offer external waterproofing solutions to provide comprehensive protection against water ingress.
- External Waterproof Coatings: We apply waterproof coatings to the external walls of your cellar, creating a first line of defence against moisture.
- Structural Repairs: Our team addresses any structural defects that may contribute to water ingress, ensuring a long-lasting solution.
Why Choose Cannon Clarke?
- Certified Experts: Our team includes CSSW (Certified Surveyor in Structural Waterproofing) qualified surveyors who design waterproofing systems to BS 8102:2022 standards.
- Quality Materials: We use industry-leading materials and techniques to ensure the highest quality of work.
- Customer Satisfaction: We pride ourselves on our excellent customer service and have a proven track record of satisfied clients.
Contact Us
Ready to protect your cellar? Contact Cannon Clarke today for a survey and quote. Call us at 0800 197 4488 or fill out our online contact form.
Trusted Across Bath, Bristol & the South West
Cannon Clarke delivers domestic and commercial structural waterproofing across:
- Bath — heritage properties, basement conversions, retaining walls
- Bristol — modern developments, commercial units, residential refurbishments
- Somerset & Wiltshire — rural properties, cellars, below‑ground extensions
Trusted by:
- Surveyors
- Insurers
- Property managers
- Homeowners across the South West
Our reputation is built on technical accuracy, reliability and long‑term results.
Case Study Snapshots
Bath — Basement Conversion
Installed a full cavity drainage system with sump and pump, resolving long‑term damp issues and enabling a habitable living space.
Bristol — Commercial Unit
Applied cementitious waterproofing to retaining walls experiencing hydrostatic pressure, preventing water ingress during peak rainfall.
Somerset — Heritage Property
Designed a non‑intrusive waterproofing solution compatible with historic masonry and conservation requirements.
Compliance & Standards
Our waterproofing systems meet:
- BS 8102:2022 — Code of practice for protection of below‑ground structures where applicable
- Manufacturer installation standards
- Insurance‑backed guarantee requirements
All work is carried out by our employed trained specialists with extensive experience in below‑ground protection.
FAQs
What causes basement leaks?
Basement leaks are typically caused by hydrostatic pressure, poor drainage, failed membranes or structural cracks.
Do you follow BS 8102?
Yes. Where Applicable all waterproofing systems are designed and installed in accordance with BS 8102:2022.
Can waterproofing be added to existing basements?
Absolutely. We regularly retrofit waterproofing systems to older properties and heritage buildings.
How long does installation take?
Most projects take between 5–10 days depending on size and complexity. (larger projects will take longer.
Do you offer guarantees?
Yes. We provide manufacturer-backed and insurance-backed guarantees where applicable.
More information?
For reliable structural waterproofing, call Cannon Clarke or book a professional survey. We’ll assess your property, explain your options and provide a clear, compliant plan.
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