FH Gilman & Co: foundations of industry

Posted on: February 18th 2026    •    Posted in:
D.E.P.

FH Gilman & Co becomes a leading force in the Pembrokeshire quarrying industry.

Begins ready‑mix concrete production and acquires Bolton Hill Quarry.

Secures major early contracts, including work for local oil refineries, Llys y Fran, and key port facilities.

Recognised as Pembrokeshire’s largest aggregates producer of the era.

In November 2011, the Gilman business is acquired by GD Harries.