Dorsets Garden Room and Shed Base Specialist
Precision concrete slabs for garden rooms, annexes, gyms, sheds and summerhouses across Dorset
Why Choose Us
We build garden rooms ourselves.
That means your base will be square, flat and built to the correct tolerances for timber buildings.
What makes us different
Trade-friendly – we work from your drawings and hand it over ready to build.
Fixed start dates – 1–3 day installs.
All groundwork included – dig-out, spoil removal, shuttering, reinforcement, concrete.
A bad base ruins a garden room. We do them properly.
Concrete Slab Guide Prices (inc. labour & materials)
The numbers below give you a realistic starting point.
Final price depends on access, spoil disposal and existing ground levels.
Important
These are guide prices only.
Final fixed quote issued after site visit.
| Size | Standard Spec Price | Heavy Duty Price |
|---|---|---|
| 3m x 3m | £1,950 | £2,350 |
| 4m x 3m | £2,250 | £2,650 |
| 5m x 3m | £2,650 | £3,050 |
| 6m x 4m | £3,450 | £3,950 |
| 7m x 4m | £3,950 | £4,650 |
Standard Spec
Dig-out, to remove top layer
(concrete sits above ground)
MOT Type 1 sub-base
Reinforcement fibres
100mm concrete slab
100mm perimeter oversize
DPM membrane
Labour, materials & shuttering
Heavy Duty Spec
Full dig-out to required depth
MOT Type 1 sub-base
Reinforcement mesh/fibres
150mm concrete slab
100mm perimeter oversize
DPM membrane
Labour, materials & shuttering
Optional Extras
Service ducting:
Hardcore/soil removal where access is tight:
Insulated slab
How it works
1 — Send us the size of your building
Garden room, annex, shed, gym – we build them all.
2 — We give you a same-day guide price
No waiting weeks for a quote.
3 — Site visit to confirm access and ground levels
4 — We install the base
1–3 days depending on size.
5 — Your building can be installed, no delays
Contact Us
Interested in working together? Fill out some info and we will be in touch shortly. We can’t wait to hear from you!