Everything above ground depends on what happens below it. We set out, dig, and pour footings and slabs, run drainage and lay the base for extensions, new builds, driveways and garden rooms. It is unglamorous work and it is where a build is won or lost.

Groundworks carried out by Trio Construction Group

What we cover

  • Setting out and excavation
  • Strip and trench-fill foundations
  • Reinforced and insulated floor slabs
  • Foul and surface water drainage
  • Soakaways and land drainage
  • Muck-away and site clearance

Part of our groundworks & foundations work

  • Groundworks & site prep
  • Footings & foundations
  • Drainage & soakaways
  • Insulated floor slabs

Foundations done properly

Trial holes first, then dig to the depth the ground actually requires rather than the depth that suits the programme. Everything is inspected by Building Control before concrete goes anywhere near it. Where ground conditions are poor or there are trees nearby, we will tell you early — it is far cheaper to find out at quote stage than mid-dig.

Drainage

New connections, diversions around extensions, replacement runs and soakaways. We survey what is already there before we design anything new, because assuming where a Victorian run goes is a good way to find out expensively.

Slabs and hardstanding

Insulated slabs for habitable rooms, reinforced slabs for garages and workshops, and compacted MOT sub-base for driveways and patios. Levels are set and checked before the pour, not corrected afterwards with screed.

Groundworks questions

Can you handle the muck-away?
Yes. Excavated spoil is removed and disposed of properly as part of the job, with the volumes allowed for in the quote so it does not appear as an extra later.
Do you work to structural engineers' details?
Always, where the job has them. Where it does not and it needs them, we will say so.
Do you do groundworks only?
Yes. If you have your own team for the build above ground, we are happy to price the groundworks package on its own.

Free no-obligation quotation

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Call us today to get in touch for a free, no-obligation quotation. No job is too big or too small — from a couple of days of repointing to a full double-storey extension.

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