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At our Kennetholme quarry, in Berkshire, we produce flint based sand and shingles for the construction and decorative markets.

Moonstone is a very decorative black and white shingle. It is a naturally occurring, uncrushed, washed and screened Thames Valley Flint, which is very hard and does not lose its colour.

Building and Construction Products

  Product Code
  Quarry Code
20m Washed Ballast
  BAL20M   KEN
40mm Thames Valley Flint
  TVF40M   KEN
20mm Thames Valley Flint   TVF20M
10mm Thames Valley Flint   TVF10M   KEN
Large Reject Fill (75mm Plus)   LRGREJ   KEN
Type 2 Sub-base   TYPE2   KEN
Type 1 Granular Sub-base   TYPE1   KEN
Sharp Sand (concreting sand)   SNDSHP   KEN
Washed Building Sand   SNDWSH   KEN
Screened Pit Sand   SNDSCR   KEN
Plastering Sand   SNDPLS   KEN

Decorative Products



Decorative Products
  Product code
  Quarry Code
6mm Moonstone Flint
10mm Moonstone Flint
20mm Moonstone Flint
40mm Moonstone Flint


Rockery stones and soils





  Product code
  Quarry Code
Coxwell Rockery Stone
Compost / Soil Blend   CMSOIL  


 Availability is subject to weather conditions.

Contact us

What makes us unique at Grundon is our ‘open door’ policy. As well as welcoming larger customers, we actively encourage the general public, smaller builders, landscapers and DIY enthusiasts to come along and purchase directly from our quarry weighbridge offices – no matter the quantity of product required.

Grundon Sand & Gravel Limited
Colthrop Lane
RG19 4NT

For sales, orders and information contact:

Tel: 01635 867 567
Fax: 01635 868 767

Opening hours:

Monday – Friday 7.00am – 4.30pm

Contact Us Now

Tel: 01635 867 567
Fax: 01635 868 767
Email: aggregates@grundon.com

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We believe that our customers should be highly satisfied with the service they receive. To deliver this service we listen carefully to the specific requirements and commercial needs.
We work at all times to provide the best available solutions,taking into account the need to ensure that our customers are fully compliant with all relevant legislation. We strive to get it right first time, every time.

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