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Guardian Basement Damproofing Company

The Guardian Basement Company offers a total solution to all aspects of Structural Waterproofing, Basement/Cellar Conversions, Damp Proofing and Flood Remediation.

“Increasing space and adding value to your property is essential in today’s financial climate, whether it’s an extra bedroom, study, playroom or just somewhere to relax in peace why not let us convert that damp, musty, unused basement/cellar into a beautiful dry room?”

Picture showing basement cellar after conversion by Guardian

After basement conversion

Picture showing cellar basement before it was converted by Guardian

Before basement conversion

Just imagine a separate playroom for your children, a snooker room with its own bar or your very own gym with changing and showering facilities.

“Teenagers need more privacy? Provide them with their very own space and enjoy the new found peace and quiet!”

“Something bigger – how about a self contained flat to provide additional rental income?”

The possibilities are endless just let your imagination go wild!

Our fully trained and qualified Structural Waterproofing Surveyors (CSSW) are conversant with BS8102:2009 and understand water movement, drainage, water tables and hydrostatic pressure. They have full knowledge of all structural waterproofing systems and by working alongside the client are able to select and design the most appropriate system for the conditions identified.

All of our basement/cellar conversions are covered by the Guardian 10-Year Certificate of Guarantee and for added security this Guarantee can be underwritten by Guarantee Protection Insurance Limited (GPI). GPI is a UK based general insurer, regulated by the Financial Conduct Authority and Prudential Regulation Authority. It’s also a member of the Financial Services Compensation Scheme. Find out more at

Picture showing basement cellar after waterproofing by Guardian

Before cellar conversion

Picture showing basement cellar after waterproofing by Guardian

After cellar conversion

Our advice and recommendations are backed by full professional indemnity insurance and our work is covered by public and products liability insurance.

As one of a small number of TrustMark registered remedial treatment contractors in Gloucestershire our clients can be assured that we have achieved what are almost certainly the most stringent approval standards in the industry. We are also Registered Installers for Delta Membrane Systems and John Newton Membranes.

We constantly strive to provide the best possible service and client feedback is extremely important to help us achieve this. The majority of our conversions are due to personal recommendation from extremely happy clients (please see our testimonials page).

Contact us today for honest, independent advice.

PCA Property Care Association
Constructionline UK Government Certfication Service
Trust Mark Governmenet Endorsed Standards
Property Preservation Systems
Guaranteed Protection Insurance
Contractors Health and Safety Assessment Scheme Accredited Contractor