Gas Membranes

Guardian can offer a design and installation package to ensure basement waterproofing systems are gas proof. This is done through the installation of external-applied gas membrane systems, internal liquid roller or spray-applied gas membrane and radon barrier.

If you are designing and building a basement, you are required to undertake site inspections for ground gases. This is where Guardian can support you through offering waterproofing and gas protection solutions. All our work is carried out in accordance with the BS 8102:2022 Code of Practice.

How Can We Help You

Watertight Guarantees

Guardian offer a 10 year Guarantee for our workmanship. Everything we do is built to endure, but if the worst should happen, we offer a 10-year insurance-backed guarantee.

Design Liability

We are design experts in our industry, following British Standards for waterproofing BS102-2022, which means we can take on the liability of our design work.

CPD Seminars

We offer free RIBA CPDs on Waterproofing delivered by our experts, to keep you and your team up to date with industry changes.

Cost Savings

Maintaining a watertight property can significantly enhance its market value and appeal to potential buyers or tenants.


Guardian have been offering their expertise to clients for over 45 years and have experience with clients across the South West and UK.

No Split Liability

By taking design liability and providing the full supply and installation package for your waterproofing project, we take full responsibility.

Why People Love Us

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Got questions about Guardian Waterproofing or a project in mind? We’d love to chat and hear from you!

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