Safety first
Well-trained teams and clear site controls underpin every project.
JJMac delivers specialist Ground Stabilisation, Earthworks, Site Remediation and Ground Improvement, including High Energy Impact Compaction and Rolling Dynamic Compaction.
Founded in 1994, we put safety, quality and value at the centre of every construction and infrastructure project. Our directly employed teams combine practical site experience with engineering knowledge to deliver reliable outcomes across the UK.
We recruit locally wherever possible and invest continuously in training, health and wellbeing. Our operatives hold relevant SSSTS, CSCS and CPCS qualifications, supported by in-house training for daily site activities.
Well-trained teams and clear site controls underpin every project.
Design, testing and delivery are connected from the earliest stage.
We work closely with clients and take ownership through to handover.

John leads JJMac with a practical, people-focused approach: investing in the team, maintaining high standards and building lasting relationships with clients and local communities.
JJMac supports local charities, community projects and grassroots football and rugby teams. We organise company fundraising events, provide practical help to families experiencing hardship and are proud to create employment opportunities within our local community.
Our commitment extends beyond financial support. When essential PPE was urgently needed during the Covid-19 outbreak, our surplus supplies were delivered directly to a hospital that had requested help.
Explore our community work

We are looking for ambitious people who want to develop their skills and help move the company forward.