Post Project Support



Once the installation is complete, our technical team attend for a final check before issuing the final warranty. This is important as it warranties the products and the performance of the products. The Product Warranty, coupled with the £10M Professional Indemnity insurance, we are able to offer the most comprehensive waterproofing warranty package.

Performance Warranty

We supply a 25 year product performance warranty which covers all Premcrete products within our designs

Design Warranty

Waterproofing designs are for the lifetime of the structure, our 12 year design warranty covers all the detail designs and this is enabled by our £10M professional indemnity insurance.

Collateral Warranty

It is common practice for FIS as consultant, adviser and designer to sign up to a collateral warranty. Our £10M professional indemnity insurance allows us to enter into this agreement providing complete peace of mind.




If the installation is carried out by competent trained installers recognised by FIS and Premcrete,  you will receive an installation warranty too, this covers the workmanship aspect of your project. For a list of these contractors please contact us by clicking here.

At this stage, we will ensure any mechanical components such as alarms or pumps are commissioned and fully operational and we will assist with setting up a maintenance plan and a maintenance contractor if required. We are always available to answer any questions relating to the waterproofing system.