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Specialist Contractors

Flat & Green


in Essex

Flat Roofing in Colchester, Essex, Roofing Contractors

Specialist Roofing Contractors

Essex, Suffolk, Norfolk, London, Kent & South East England

Formed in 1986, GRM’s insistence on high quality workmanship, supplied by our directly employed labour, has helped achieve a second to none reputation in the UK flat roofing industry, covering London and East Anglia.

For over three decades we have been selected as an approved contractor by leading manufacturers who confidently guarantee our workmanship with insurance backed guarantees alongside their systems.

With projects ranging from small domestics to large industrial, commercial and local authorities, GRM prides itself on its prompt and reliable service, delivering a quality and professional service every time.

01. Flat Roofing

Experts in flat roofing in particular built-up high performance bituminous felt waterproofing systems.

02. Green Roofs

Offering an eco friendly solution with numerous environmental benefits and favourable for planning proposals.

03. Roof Coatings

Low cost, non-disruptive maintenance systems provided by manufacturers such as Bauder Liquitec.

04. Single Ply

A single layer of waterproofing to provide a sound waterproof solution to many types of projects.


Paxman Academy

Drone eyed view of the recently completed Paxman Academy project by GRM Roofing, working once again with Barnes Construction, installing a Bauderflex Waterproofing System to all roof areas. – Drone images captured by M J Barnett.
Flat Roofing, Green Roofing in Colchester, Essex
Flat Roofing, Green Roofing in Colchester, Essex

A complete service to ensure all aspects of each individual projects requirements are met.

Take a look through some of our recent projects we are proud to have been associated with.


Established since 1986


Highly experienced team of contractors 


Private, local authority, and utility contracts


Health & safety compliant across all work


Local award winning company 

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