After five years, our work at HMP Grendon in Buckinghamshire is complete. With over 20 phases of works ranging from administration buildings and ancillary buildings to house wings and corridors across the prison site, our teams have upgraded lighting and general and...
Prisons
HMP Grendon fire safety infrastructure upgrade
In 2021 Vinci asked SJD to provide a £2.5m electrical upgrade for a major fire safety infrastructure project at HMP Grendon in Buckinghamshire. HMP Grendon is a specialist therapeutic prison with capacity for 300 prisoners, currently housing around 180 men. The prison...
Specialist knowledge in prisons
SJD has been working with contractors such as Vinci Facilities, to deliver maintenance, upgrades and new building work in the prison sector since 2018. Custodial environments require a great deal of sensitivity, knowledge and flexibility. SJD’s experience is extensive...



