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T: 01298 812371
F: 01298 812237

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HD Sharman Ltd.
High Peak Works,
High Peak,
Derbyshire SK23 0HW

Trained Contractor Network

Ensuring quality control

To ensure the highest level of installation quality control, we operate a national network of certified Trained Contractors fully qualified in the installation of the Plygene Gutterline system. Sharman’s team of external Technical Services Managers work hand in glove with these Trained Contractor partners carrrying out inspection and audit and or site certification for all projects as a precondition of authorising the 25 year product guarantee.


Becoming a Trained Contractor

In support of the NFRC’s drive to improve quality standards across the roofing industry, our contractor partners undertake an initial comprehensive and rigorous Plygene Gutterline installation training programme supported by online training resources and project audit.

Correct installation in line with the specified fixing instructions is a key requirement of the system’s lifecycle performance and 25 year guarantee.



For more information please contact:

Trained Contractor Network team

Trained Contractor Network team


T: 01298 812371

Arrange a training programme

Full training is provided at our purpose built training centre.

The video library

Our video library provides you with short support videos for installing the Plygene Gutterline system.

The system guide

Installation and technical guidance to ensure the system is installed to the highest level of standard, meeting the 25 year guarantee requirements.

The market leading choice

1 million

Metres of system installed


UK commercial properties


Trained Contractors


Market growth