Guarantee Information

GPI Underwritten Guarantee Information 

GPI Building Guarantees Providing professionalism, reassurance and support to the Damp Proofing & Building Industry 

Did you know?

Customers are more likely to appoint a contractor who can provide an independently Backed Guarantee for their works it shows confidence and integrity.
• Contractors may be contractually required to provide an Indemnity Backed Guarantee by a developer.
• Lenders or funders may insist on the contractor providing an indemnity guarantee.

What is an Indemnity Backed Guarantee?

An Indemnity Backed Guarantee is a guarantee given by a contractor to its customer to provide peace of mind in case the contractor has ceased trading. The liability is transferred to the guarantee provider.
• Contractors can offer guarantees for up to 30 years, but if the contractor was to close down then their guarantee would be worthless. So it’s essential to get cover underwritten by Lonon Underwriters as our guarantees are.  
• Our Guarantee will honour the contractors guarantee for the remainder the guarantee was valid for.
Benefits of an Underwritten Indemnity Guarantee
• Full protection throughout the guarantee period your assets remain guaranteed.
• Almost any kind of work can be covered subject to simple verifications. 
• Cover can be provided for up to 30 years.

Some of the work that can be covered by our Guarantee’s

• External Wall installation.
• Extensions. 
• General building works (Excluding Structural works).
• Glazing.
• Groundworks (Underpinning / Piling / Drainage).
• Roofing.
• Structural Waterproofing and Basement conversions.
• Structural Works (Subsidence remediation).
• Timber & Damp works.

We are the only guarantee provider to have an active network of repair teams who attend and resolve any claim within14 days of claim receipt.  

Apply for a GPI Guarantee Here 

Apply to become an Approved contractor and Subscribe Here


Just require policy against Rising Damp for your property?

The cost of a 20 year policy is as follows:  

Terrace Property                                               £200.00 + VAT
Semi Detached Property                              £250.00 + VAT 
Detached Property                                          £400.00 + VAT 


The fundamental strength of our GPI Protected Guarantee's are that it is issued entirely independently of any manufacturing Company.  

All Guarantees secured by London Underwriters. 

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