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SERVICE

Infrastructure & Construction

The surface is the last thing to go down. Whether it lasts depends almost entirely on what was built underneath it.

THE SERVICE

Built from the formation up.
The part nobody sees.

This is the groundworks and civil engineering side: excavation, drainage, ducting, kerbing, footways and the foundation layers that carry everything above them. On a new build or a full reconstruction it’s the bulk of the work, and it’s the part nobody sees once the job is finished.

It starts with getting the ground right. Excavating to formation, checking the ground can carry the loading it’s going to see, and building back up in layers, compacted as they go. Where the ground is soft or holding water, that gets dealt with here through drainage or a geotextile separation layer, because there is no way to correct it later from the top.

Drainage is designed alongside the levels, not after them. Gullies, channels and soakaways have to be set so water actually runs to them, which means the falls across the whole area are worked out before anything is laid. Getting this wrong is expensive to fix, since correcting a fall means taking the surface back off.

Ducting and services go in at the same stage, so that lighting columns, power, communications and anything else planned for the site have a route without a trench being cut through new surfacing six months later. Kerbs and edgings are set to hold the surfacing in place and define the finished lines, and footways and hardstanding are built to their own construction rather than as a thinner version of the road.

Ducting laid in an open trench on timber supports before backfilling.

DELIVERY STRUCTURE

Typical scope

  • Excavation, formation and compacted sub-base
  • Foul and surface water drainage, gullies, channels and connections
  • Ducting for lighting, power and communications
  • Kerbing, edgings, channels and footways
  • Hardstanding, yards and access routes
  • Reinstatement following service work

What affects the programme

Ground conditions found on opening up, existing services that have to be located and worked around, weather during earthworks, and the sequencing of any utility provider who needs to be on site before the ground can be closed up.

Where we work

Most of our groundworks and civils are in Edinburgh, Midlothian, East Lothian and West Lothian, with recent jobs in Penicuik, Dalkeith, Haddington, Bathgate and Newbridge. We also deliver infrastructure work further afield, from Dundee and Kilsyth to Oban and Inverness.

QUESTIONS

Common questions.

Why does drainage have to be decided before the surfacing?

Because the falls across the whole area have to run to it. Once the surface is down, correcting a fall means lifting it again.

What happens if the ground underneath is soft?

It is dealt with at formation, usually through drainage, a separation layer or replacing the material. Building over soft ground and hoping the surface carries it is what causes the failure two years later.

Can ducting be added after a site is surfaced?

It can, but it means cutting a trench through the new surface and reinstating it, which leaves a joint that will need sealing and never matches. Putting the ducts in first is far cheaper.

Does footway construction differ from road construction?

Yes. Footways carry different loads and are built to their own specification rather than as a thinner version of the carriageway.

On the map

Our infrastructure and construction jobs.

View these 14 jobs as a list
  • Infrastructure & Construction

    Strathesk Walking Route

    Location
    Penicuik

    Tactile paving and footpath works

    View project
  • Infrastructure & Construction

    Starbucks Inverness

    Client
    Starbucks
    Location
    Inverness

    Ducting installation

    View project
  • Infrastructure & Construction

    Town & Kings Gates

    Location
    Dalkeith

    Installation of new bollards and associated civils works including kerbing and surfacing

    View project
  • Infrastructure & Construction

    Laundry House CP

    Location
    Laundry House, Dalkeith Country Park

    Construction of new car park

    View project
  • Infrastructure & Construction

    JHI Research Centre

    Client
    JHI
    Location
    Dundee

    Concrete slabs

    View project
  • Infrastructure & Construction

    Tesco Oban G'works

    Client
    Tesco
    Location
    Oban

    Various items on minor civil works within car park

    View project
  • Infrastructure & Construction

    St Columbas

    Location
    Kilmacolm

    Ramp installation

    View project
  • Infrastructure & Construction

    Royal Bank Archives

    Client
    Royal Bank
    Location
    Edinburgh

    Heras fencing hire and permanent fencing install

    View project
  • Infrastructure & Construction

    Asda Wigan Iron Work

    Client
    Asda
    Location
    Wigan

    Reset and replace iron work within store toilets

    View project
  • Infrastructure & Construction

    Asda Duncansfield PFS

    Client
    Asda
    Location
    Kilsyth

    Carry out drain test on system

    View project
  • Infrastructure & Construction

    Dean Plant Yard

    Location
    Bathgate

    Forming of new yard space

    View project
  • Infrastructure & Construction

    St Davids Walking Route

    Location
    Dalkeith

    Tactile paving and footpath works

    View project
  • Infrastructure & Construction

    Haddington Care Home

    Location
    Haddington

    Groundworks and access areas at a new care home development, with a tarmac turning circle

    View project
  • Infrastructure & Construction

    BP: Infrastructure Installation

    Location
    Newbridge

    Installing infrastructure for EV chargers within a very busy BP garage

    View project

TALK TO US

Groundworks, drainage or ducting to price?

Send the drawings or the scope and we’ll come back to you.