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...
Case Studies
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...
New Data Centre at Cranfield University
With many staff and students working in a hybrid way, Cranfield University wanted to upgrade its data infrastructure to increase capacity. The University identified a building on its site, previously leased to Santander Bank that would make the ideal location for a...
Office upgrade for MK recycling team
Ashe Construction asked SJD to provide electrical and data services for the refurbishment of a two-storey office block at Milton Keynes Council’s materials recycling treatment and waste transfer station in Wolverton. The project was designed to help the Council meet...
Two awards for Tara
Site supervisor Tara Warner has received not one, but two safety awards while working at Bedford Academy for Ashe Construction. SJD is helping Ashe to build a new £12m teaching block at the school which is due for completion in August. Tara is leading the team which...
Relocation for growth
Aero Tec Laboratories (ATL) and SJD’s relationship spans back 15 years when ATL asked SJD to undertake electrical alterations at their 25,000sq ft building in Patriot Drive, Milton Keynes. As the company developed to become a leading liquid containment specialist...
Luton and Dunstable Hospital expansion
SJD has been working on a number of projects at Luton and Dunstable University Hospital with Parias Construction and Interiors (PCI) recently, as part of the Hospital’s major expansion and refurbishment. Luton and Dunstable University Hospital is run by Bedfordshire...
Improvements for medical imaging at Circle Health Group hospitals
Parias Construction and Interiors (PCI) asked SJD to provide the electrical solutions for refurbishments to improve patient services at several hospitals owned by Circle Health Group.Circle Health Group is the UK’s largest national network of private hospitals and the...
Milton Mouse children’s unit Milton Keynes Hospital
Parias Construction & Interiors (PCI) asked SJD to work with them recently on a full refurbishment project at Milton Keynes University Hospital. The team was asked to design and install the electrical infrastructure for Milton Mouse, the children’s outpatient...
Project HyPER reaches completion
After four years at the site, SJD’s work at Cranfield University’s innovative HyPER project has just been commissioned. The cutting-edge collaboration between the University, GTI Energy, Altrad Babcock, and Helical Energy has developed a pilot scale system to create...










