The Gates were restored in 2005 by Michael Jacques, master blacksmith of Forge Ahead Ironworks Ltd

The Gate piers were rebuilt by Davis Stonemasonry on behalf of APSMasonry.

Stone used for the renewal of the entrance gate piers at Nether Winchendon House, 2005

The name of the stone used is 'Hartham Park', it is a sedimentary Oolitic limestone from the Great Oolitic formation of Jurassic period and is some 145 million years old.

This formation is mainly found to the south-east and north of the city of Bath, the earliest records show that Bath stone was quarried during the Roman occupation of Britain, but it was only during the 18th Century that the expansion of the city of Bath and the construction of the Avon and Kennet canal resulted in the extensive quarrying and use of Bath stone. The Hartham Park quarry is in fact a mine.

Hartham Park underground quarry is the oldest quarry in Corsham. Hartham Park Bath stone has been used at:

Restoration of Entrance Piers and Gates - Re-roofing of Barn - Asbestos removal