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  • experienced groundworks contractors
CASTLE OAK HOMES | HOMES OF DISTINCTION

Experienced groundworks contractors

Our groundworks services provide the essential foundation for any new build project – whether you’re a domestic client or developer. With a reputation for reliability, quality and exceptional attention to technical standards, our groundworks contractors can be trusted to deliver.

Our groundworks services

Castle Oak is a family-run business based in Hertfordshire and serving clients throughout the UK. With over 70 years of experience across all aspects of construction, we guarantee groundwork services of the highest quality, regardless of scope or scale.

New builds and developments

Our groundworks contractors have experience across a range of projects, from individual luxury new builds to large building developments, and from small extensions to expansive renovations.

Certified groundworks contractors

Castle Oak is NHBC registered and we only employ CSCS certified specialists for your peace of mind –plus we carry £5m employers/£10m public liability insurance as standard, with increases optional.

Site excavation and preparation

We also offer full site excavation support in order to prepare for groundworks and construction. With one reliable team on hand, we’ll ensure your build is delivered on time, and on budget.

Plant machinery

As a turnkey design and build company, we genuinely take care of every detail, including the supply of all necessary plant machinery and equipment – getting everything on site ready for work to begin.

    Comprehensive, quality groundworks services


    With a reputation for building homes of distinction, we promise the same exceptional standards through all of our services, with groundworks being no exception. Our quality support includes:

    • Ground investigations
    • Trenching
    • Retaining walls
    • Sheet piles
    • Footings and foundations

    Our groundworks contractors have the knowledge and capabilities to ensure this first stage of your construction project sets the standard for the remainder of your build.
      Managing multiple trades from different providers can quickly create issues on a construction project, with the ‘domino effect’ of changing logistics and timescales – which is why we do it all…


      With full project management, expert support and a flexible approach, you can engage our groundworks contractors on an ad-hoc basis, or as part of our comprehensive construction services.

      From inception to completion