The team at Henry Timmis is ready, willing and able to take on the challenges that come with delivering on precision groundworks and trenching for construction and civil engineering contracts in Wiltshire. We combine local knowledge, modern equipment and practical expertise to make sure every groundwork and landscaping phase of a project runs smoothly, from excavation and drainage through to foundations and finishing works.
We have a proven track record for solving all the problems commonly encountered by managers of public sector civil engineering projects and large commercial construction builds when getting them off the ground. With us you can expect:
No delays – Modern machinery and expert operators keep projects on schedule.
Safety first – Clear marking, protective systems, and full compliance guaranteed.
No damage – Careful planning avoids costly mistakes with underground services.
Any ground broken, any project fulfilled – from farmland drainage to commercial ducting and civil infrastructure.
Based in Devizes, Wiltshire, we take on construction and civil engineering contracts for groundworks and earthmoving on sites across Wiltshire, including areas like Calne, Derry Hill, Marlborough, Market Lavington, Melksham, and Pewsey. We also cover areas further afield such as Swindon, Newbury, Andover, Salisbury, Warminster, Frome, Bath, Tetbury, Chippenham.
We work closely with clients, utility contractors, developers and local authorities to make sure the work is done right – safely, efficiently and to the highest standard.
We receive praise from bodies such as the National Trust, for whom we delivered a full groundworks package for a Mobility Access Hub at Stourhead, fully aligned with the National Trust’s design and sustainability requirements. Our contribution involved a range of services including:
Site clearance and excavation
Earth moving and ground levelling
Foundations and reinforced concrete bases
Installation of damp proof membranes
External finishes such as block paving and accessible pathways
We look forward to consulting with construction and civil engineering project managers about how our skills and experience can be of benefit.
As any civil engineer knows, good quality, efficiently constructed groundworks and trenching form the essential foundation of any successful project. They directly influence the safety, durability, and long-term performance of the entire structure or infrastructure being built.
When you contract with us for your groundworks and trenching you can be assured of:
Structural Integrity and Longevity
Proper excavation, compaction, and stabilisation ensure that loads are distributed evenly and that the structure remains stable over time.
Precise Utility Installation
Trenching enables the safe and accurate placement of essential utilities such as water pipes, drainage systems, electrical cables, and fibre optics. Accurate trench alignment and consistent depth help protect services from damage, make future maintenance easier, and ensure compliance with regulations like NJUG (National Joint Utilities Group) guidelines.
Efficiency and Cost Control
Efficient trenching and groundworks reduce delays and wastage. Using modern machinery and skilled operators allows for faster excavation with minimal disruption, keeping projects on schedule and within budget.
Safety and Compliance
Adhering to best practice in trenching and excavation protects workers and the public. Compliance with Health and Safety Executive (HSE) regulations is a legal requirement, and good-quality groundworks demonstrate a professional, responsible approach to site safety.
Environmental Responsibility
Efficient groundworks minimise soil waste, reduce carbon emissions through shorter operating times, and help protect surrounding ecosystems.
You can be confident our groundworks will set the stage for the entire project to progress smoothly.