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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

Approved Contractor Network

Ensuring Quality Control

To ensure the highest level of installation quality control, we operate a national network of certified Approved Contractors who are fully qualified in the installation of our systems. Sharman’s team of external Technical Services Managers work hand in glove with these Approved Contractor partners carrying out inspection and audit, and/or site certification for all projects as a precondition of authorising the gutter and roof systems guarantees.


Becoming an Approved 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 gutter and roof refurbishment training programme, supported by online training resources and project audit.

Correct installation in line with Sharmans installation  methodologies is a key requirement of the lifecycle performance and the authorising of the gutter and roof systems guarantees.



For more information please contact:

Approved Contractor Network Team

Approved Contractor Network Team


T: 01298 812371

Arrange a Training Programme

Full training is provided at our purpose built training centre.

The Plygene Video Library

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

The Plygene Gutterline System Guide

Installation and technical guidance to ensure the system is installed to the highest level of standard, meeting the gutter and roof systems guarantees requirement.

The Market Leading Choice

3.0 million

Metres of system installed


UK commercial properties


Approved Contractors


Market growth