Concrete Bases

Garden room, shed and outbuilding bases — built to spec.

Overview

What we deliver

A garden room base has to carry weight, resist movement and stay perfectly level — for the life of the building above it. We build reinforced, properly cured concrete bases dug to the right depth, squared and finished to the spec your structure requires.

Dug, formed and squared on site

Compacted MOT type 1 sub-base

DPM and steel reinforcement where specified

Power-floated or tamped finish

Built to garden room manufacturer specs

Why depth and reinforcement matter

An underspec'd base will move with ground conditions and cause the structure above to twist. We dig to a depth suited to the soil, install steel where the spec calls for it, and pour at the correct thickness.

Squared and level

Bases are formed, checked diagonally for square, and finished dead level. Garden room manufacturers won't warranty a poorly built base — we build to the spec sheet first time.

DPM and edges

Damp-proof membrane is installed correctly under every base. Edges are cleanly formed so the building sits square and weatherproof.

Featured job

5×4m garden office base, Marlow

Marlow, Buckinghamshire

Reinforced concrete base for a premium garden office. Dug to 250mm, MOT sub-base compacted in layers, DPM and A142 mesh installed, 150mm concrete pour finished dead level and cured 10 days before the building was craned in.

Dimensions5.0 × 4.0 m
Concrete depth150 mm
Sub-base150 mm MOT type 1
ReinforcementA142 mesh + DPM
On site4 days + cure

How we work

Our process

01
Spec check
Confirm dimensions, depth and reinforcement from your building's spec sheet.
02
Excavation
Dig out, install and compact MOT type 1.
03
Formwork & steel
Square shutters, DPM, mesh or rebar as specified.
04
Pour & cure
Pour, level, finish, allow proper cure time before loading.

Common questions