Quarry
John Gunn & Sons Ltd operate rock quarries at Skitten and Bower. Bower Quarry supplies crushed stone, Asphalt products, ready mix concrete and concrete blocks. We also operate a sand and natural aggregate quarry at Melvich which also supplies ready mixed concrete.
Our quarries have the resources to supply all specifications of aggregate, asphalt and concrete mixes. Please contact us at Bower Quarry for all enquiries.
Quality Assured
All of our aggregate, concrete, asphalt and concrete block products are CE marked under BSI conformity of the factory production control, which is a mandatory requirement under BSI to enable any quarry to sell these materials.
Quality assurance testing is also undertaken on a regular basis in our in-house testing laboratory to ensure all materials conform to the required specifications.
Asphalt Products
All of our asphalt products are CE marked under BSI conformity of the factory production control. We supply asphalt products to a range of customers including Local Authority and Trunk Road works throughout Caithness and parts of Sutherland.
Bower quarry is approved for the quality assurance of the production of asphalt mixes in accordance with National Highway Sector Scheme 16.
Ready-Mixed Concrete
Our ready-mixed concrete is certified under EN 206 & BS 8500 parts 1 and 2. We have a track record supplying and delivering Ready-mixed concrete to numerous Windfarm projects in Caithness and North Sutherland, Substation projects and to several major projects in Dounreay Nuclear Site.
Concrete Blocks
We produce and supply concrete blocks in a variety of sizes. All of our concrete blocks are CE marked under BSI conformity of the factory production control to ensure a quality product is provided to our customers.
Aggregates
A full range of crushed rock aggregates and sands are available from our quarries.
Full Product range
- Surface dressing aggregates
- Asphalt
- Crushed rock
- Rock armour
- Concrete
- Sand
- Concrete blocks
- Precast concrete lego blocks
- Cold Tar
- Bitmac
- All sizes of crushed stone