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Diploma Coal Merchants from Gloucestershire

Established in 1920, A W Parker Coal Merchants are a family run business based in the Forest of Dean, an area with a rich coal heritage dating back centuries.

As Diploma Coal Merchants, we are members of the Approved Coal Merchants Scheme and abide by the Coal Trade Code which is a basis for honest and fair trading.

We deliver an extensive range of coal and wood products for domestic and commercial use both locally and nationally and pride ourselves on our customer service.

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Contact us for advice on which product will best suit your fuel needs. We deliver 50kg open sacks locally to tip into a bunker and 20kg sealed plastic bags through our online shop.

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The Boss

Graham Parker is the Managing Director and has been in charge since 1980 when he left the local Rank Xerox plant to work for the family trade with his uncle. He has grown it from a two man, one lorry business to a limited company running a fleet of vehicles and delivering coal across the UK.


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When you call the office it is likely you will speak to Sarah, our experienced Administrator. She will take your order and assist with any queries. Sarah is Graham’s niece and has been with the business for over 30 years.

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Having worked as a manager with Royal Mail for 25 years, Nick started to learn the family trade from his father-in-law 6 years ago and is now a key member of the team.

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Our part-time bookkeeper Melanie has worked for the business for 20 years and is also a Director. She is Graham’s eldest daughter, Nick’s wife and Dan’s mum!

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Currently works part-time but has been with the business for over 30 years. He is also a HETAS registered chimney sweep and appliance installer so if your chimney could do with a clean, give him a shout.

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The fifth generation of the Parker family to work for the business, Dan is Graham’s grandson.

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Mike used to work with Nick at Royal Mail but is now concentrating on a different kind of delivery!