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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?

CGS Contractors are specialist in different areas with some covering several. For details see ‘Find a Contractor in your area’ below.

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

Become A Member

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

What our customers are saying

“You have both been ever so helpful as always ”

Contractor, Wales

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 insurance company authorised by the Prudential Regulation Authority and Regulated by the Financial Conduct Authority and the Prudential Regulation Authority. 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