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Dry Rot, Woodworm, Rising Damp, Wet Cellars, Subsidence, Extensions?

If you’re game for a gamble
Stick a pin in the yellow pages

If gambling with your house is not your thing and you prefer competence over cowboys then choose a CGS approved contractor.

FAQs Cover & Key Facts
For wood rotting fungi, wood boring beetle, rising damp, remedial wall ties, stitching and lateral restraints

What's special about
a CGS approved contractor?

All CGS contractors are approved to offer insured guarantees for remedial treatment and structural waterproofing (tanking).

Find out more

Our Contractors

Well, where do you want to start? All CGS contractors are independently vetted against a checklist of over sixty three standards they are expected to meet and only contractors showing a high degree of technical competence.

Find out more

Find a Contractor in your area

CGS Members

Members Login

Become A Member

Download our application form if you feel you can meet our high standards (PDF).

What our customers are saying

“Thanks for spotting that, you have probably improved my cash flow by making it easier for me to get my money.”

Contractor, Essex

Contact Details
Contact Us

Construction Guarantee Services Ltd
50, Place Farm Way, Monks Risborough, Princes Risborough, Buckinghamshire, HP27 9JH

What is CGS?
Contact Us

CGS as a company supports its members’ guarantees by arranging for them to be insured, at the request of the customer, by Guarantee Protection Insurance Ltd, a UK based FSA authorised and regulated insurance company. A small one-off fee can buy insurance for up to 20 years for remedial timber treatment, damp treatment, wall ties and lateral restraints...

Useful Contacts
Literature & Downloads
Insured Guarantees Explanatory Leaflet

Download our policy documents and explanatory leaflet below