Case Studies

Five Years on at Grendon Prison

Five Years on at Grendon Prison

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...

Long-term relationship with Bedford Hospital

Long-term relationship with Bedford Hospital

Healthcare projects are an important aspect of SJD’s work, helping to make much-needed improvements to hospital services for local communities across the areas we serve. We’ve returned to Bedford Hospital several times over the years to renew out-of-date electrical...

Multi-phase M&E upgrade at Sandy Secondary School

Multi-phase M&E upgrade at Sandy Secondary School

SJD was asked by Ashe Construction to upgrade the electrical services at Sandy Secondary School in Bedfordshire as part of a wider project to accommodate more children at the school. Central Bedfordshire Council’s New School Places programme aims to increase the...

HMP Grendon fire safety infrastructure upgrade

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

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

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

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

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

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

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...