We offer an extensive range of guarantees covering all of the work we carry out. You can register your guarantee on our website once the work is complete. We are registered with the Trustmark Scheme which allows Property Care Association members to offer a guarantee protecting customers during work in progress and for deposit payments.

We also offer an independent insurance-backed guarantee through the Guarantee Protection Trust. The guarantee covers the first 10 years of our guarantee for damp proofing, waterproofing and timber treatment work. The GPT guarantee is often specified by local authorities, the NHBC and Zurich Insurance. Premiums are one-off payments, representing excellent value and the guarantees give that extra peace of mind.

Insurance-backed guarantees

Damp proof course 20 years
Salt damp & plastering 5 years
Woodworm treatment 20 years
Dry rot treatment 20 years
Wet rot treatment 20 years
Basement waterproofing 10 years
Ultrotherm insulation 10 years
Heat recovery units 2 years
Heat retention units
Extractor fans 2 years
Ultrovents 10 years


Heat recovery and heat retention units require annual servicing. The current servicing costs are available by contacting our office.
Ultrovent guarantees are subject to the filter being cleaned or replaced as necessary.
Sample guarantees are available on request