Excavation and temporary support for the depth the tank needs, planned as temporary works.
Finishing & Specialist
Core coverage
Commercial groundworks and civils packages across London and the South East.
All areas we cover
Finishing & Specialist
Core coverage
Commercial groundworks and civils packages across London and the South East.
All areas we coverAttenuation and storage tanks, pump stations and interceptors — excavated, bedded, surrounded, connected and commissioned.
A buried tank is not something you want to go back to. Getting it right means the excavation, the bedding, the concrete surround and the connections all treated as one operation, with the manufacturer’s installation requirements followed rather than approximated.
We handle the lot, including the deep excavation and temporary support that the tank depth usually needs, and commission it before backfill closes the job out.
Excavation and temporary support for the depth the tank needs, planned as temporary works.
Bedding and concrete or granular surround exactly as the manufacturer requires.
Connections tested and the system commissioned while everything is still accessible.
Scope is taken from your drawings and the manufacturer’s details.
Below-ground storage tanks and crate systems installed and connected.
Storage tanks with connections to the collection and supply pipework.
Wet wells, pumps and control chambers installed and commissioned.
Petrol, oil and grease interceptors set and connected.
Deep dig with temporary support planned as temporary works.
Bedding, concrete or granular surround and cover depth to detail.
The same sequence every time, so you know what happens next and who owns it.
We price from your drawings and the manufacturer’s installation requirements, not a generic build-up.
Deep dig with support designed and checked, and groundwater managed where it is present.
Tank set to level on the specified bedding, checked before any surround goes in.
Inlet, outlet and vents connected, then the surround placed to the manufacturer’s detail.
System tested and commissioned, then backfilled to the right cover depth and reinstated.
Below-ground plant set, connected and commissioned.
Attenuation tank installation
Deep excavation with support
Connections made before surround
Concrete surround placed
Pump chamber set to level
Reinstated over cover depth
If yours is not here, call the office — you will get a straight answer, not a callback form.
01895 725125Either. Plenty of clients have already specified and ordered the unit, in which case we install to the manufacturer’s detail. If you would rather we supplied it, we will price it with the installation.
As deep as the design needs. Depth is a temporary works question rather than a limit — the support is designed and checked before we dig.
Where groundwater is present we plan dewatering as part of the works. It is much cheaper to allow for it up front than to discover it with an open hole on site.
Yes. Connections are tested and the system commissioned while everything is still accessible, before backfill closes it out.
Yes, and we will reinstate over it. Cover depth and load class over the tank are set by the manufacturer’s detail and the surfacing specification, and we build to both.
Send the drawings and the manufacturer’s detail. We will come back with a measured price and a start date we can hold.