About us
Established in 1977 Guardian is able to provide a total solution in all aspects of remedial treatments and property care including:
- Structural Waterproofing – Design and installation

- Basement Conversions / Cellar Conversions
- Flood Remediation
- Damp Proofing (chemical injection and electro osmotic systems)
- Condensation Control
- Timber Treatment (Dry Rot/Wet Rot/Beetle Infestation)
- Structural Repair Systems: Crack Stitching, Lateral Restraints, Beaming, Wall Ties
We also provide the following:
- Specialist damp, condensation, timber and wall tie surveys by fully qualified surveyors
- Endoscopic surveys to help avoid costly and disruptive exposure works

- Energy surveys using the latest thermal imaging equipment to source leaks and heat loss
- Detailed impartial reports which are accepted by major lenders
- Insured guarantees (approved by the NHBC & Zurich)
- Full professional indemnity, public and products liability insurance
- Laboratory analysis service
Our clients include the NHBC, Conservation Officers, Local Authorities, Housing Associations, the NHS, Building Surveyors, Architects, Solicitors, Structural Engineers, Loss Adjusters, Insurance Companies and many private home owners and building contractors. We are proud of the reputation we have earned for technical expertise and customer care provided by fully trained, knowledgeable and qualified staff and were honoured to be awarded first place in the ‘Innovation’ category at the PCA (Property Care Association) Awards ceremony for a flood remediation design developed in the aftermath of the devastating 2007 floods.
We are CHAS accredited and full members of Constructionline, the Property Care Association (PCA) [formerly known as the British Wood Preserving and Damp-Proofing Association (BWPDA)], together with the Association of Accredited Wykamol Users (AAWU) and are vetted annually to ensure that we continually conform to strict codes of practice in relation to health and safety compliance, technical competence, trading history and financial soundness.
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 hardest approval standards in the industry. We are also Registered Installers for Delta Membrane Systems, John Newton Membranes and Thor Helical Structural Repair Systems.
For added security the Guardian Certificates of Guarantee can be underwritten, at an additional premium, by Guarantee Protection Insurance Limited, an insurance company authorised and regulated in the UK by the Financial Services Authority.
Every possible care is taken to correctly diagnose all damp and timber problems. We have a duty of care both to our clients and to the environment to ensure that chemicals and pesticides are used only when there is no other alternative. We constantly strive to provide the best possible service and client feedback is extremely important to help us achieve this (please see our testimonials).
Specialist Surveys
Basement Conversions & Cellar Conversions
Damp Proofing
Condensation
Flood Remediation
Timber Treatments
Structural Repair Systems
Cavity Wall Tie Replacement




