History

Stronghold Preservation started trading under the name of 'Ulster Damp Proofing'.  The company was started as a specialist damp proofing company by Seamus & Eileen Marshall in 1985, initially as a franchise of British Damp Proofing and then as an independent company, with their sons Paul and Peter subsequently joining the company. As the company diversified it adopted the acronym 'UDPG' - Ulster Damp Proofing Group. 

In 2013 the company was re-branded to become 'Stronghold Preservation' to better reflect the wide range of services carried out; and to position the company firmly in its target market of the restoration of historic buildings and structures.  As the company has progressed, it has expanded to include a wide range of structural repair and restoration services for listed and historic buildings and structures, and also specialises in new build basement waterproofing.

During 25+ unbroken years in trading, the company has issued and honoured workmanship guarantees up to 20 years in length.