Concrete Bases Worcestershire: What You Need for Sheds, Summer Houses & Hot Tubs

Planning a shed, garden room, or hot tub in Worcestershire? Plex Group explains what goes into a professional concrete base — and why getting it right first time matters.

See how we can help you!
Read more

Why the Base Matters

Clay-heavy soils across Evesham, Cheltenham, and Moreton-in-Marsh expand when wet and contract in dry spells. Without a properly engineered base, slabs crack, structures shift, and buildings fail prematurely. At Plex Group, every concrete base starts with a full site assessment before any groundwork begins.

Depth and Reinforcement

Specification depends on what the base needs to support:

  • Sheds and workshops: 100mm unreinforced slab on a compacted sub-base
  • Summer houses and garden offices: 125–150mm with A142 mesh reinforcement
  • Hot tubs: 150–200mm reinforced slab — a filled tub can exceed two tonnes

Steel mesh prevents cracking under load and protects against seasonal ground movement — critical across Worcestershire's mixed soils.

Preparation and Drainage

We excavate to the correct depth, lay and compact MOT Type 1 aggregate, and install drainage channels where required. The surrounding ground is graded to direct water away from the structure. Concrete is poured, levelled with laser accuracy, and protected during the 28-day curing period. Shortcuts at any stage compromise the entire installation.

Read more

Built for Clients Like You

Complete Hardscape Transformation in Guiting Power

A 10-day full-property hardscape overhaul in Guiting Power, featuring French Dolomite Limestone porcelain throughout, a bespoke pergola over an outdoor kitchenette, and full perimeter drainage.

Learn more

Privacy by Design: A Bespoke Cladded Boundary in Kingham

A 6-day boundary extension and fence installation in Kingham, built using tongue and groove cladding to create a seamless, architectural finish.‍

Learn more

House to the Garden: Composite Deck Replacement in Evesham

A 20 year old timber deck replaced with frosted blue composite boarding, a custom step, and a built-in fish pond access hatch

Learn more

What to Expect from Plex Group

  • Full site assessment before any work begins
  • Correct specification for your structure and soil type
  • Professional groundwork across Worcestershire, Gloucestershire, and Warwickshire
  • Installations in Evesham, Cheltenham, Stratford-upon-Avon, Moreton-in-Marsh, and Burford
How thick should a concrete base be for a shed or summer house?

Sheds typically need 100mm, while summer houses and garden offices require 125–150mm with reinforcement. Hot tubs need up to 200mm due to the weight when filled.

Do I need a reinforced base for a hot tub?

Yes. A filled hot tub can exceed two tonnes, so steel mesh reinforcement is essential to prevent cracking and ensure even weight distribution across the slab.

How long does a concrete base take to cure?

Concrete sets in 24–48 hours but reaches full strength after 28 days. Heavy structures should not be placed on the slab until curing is complete.

Do you install concrete bases across Gloucestershire and Warwickshire?

Yes. Plex Group installs concrete bases across Worcestershire, Gloucestershire, and Warwickshire, including Evesham, Cheltenham, Stratford-upon-Avon, Moreton-in-Marsh, and Burford.

Built to Last Across the Region

Whether you're in Cheltenham, Burford, or the Vale of Evesham, Plex Group designs every concrete base to suit the specific structure, load, and ground conditions on your site. We don't use a one-size-fits-all approach — and that's exactly why our installations last. Get in touch for a no-obligation consultation.

Conclusion

A professional concrete base protects your garden structure for decades. Plex Group delivers precision groundwork for sheds, garden rooms, and hot tubs across Worcestershire, Gloucestershire, and Warwickshire — built right, first time.

Landscaping Guides

Why Is Ivy Damaging My Drystone Wall

Ivy roots into the core of a drystone wall and forces the stones apart, and pulling it off makes the damage worse. Plex Group explains what is happening and the right way to fix it across the Cotswolds.

Read more

Why Is My Drystone Wall Bulging

A bulging drystone wall means the core has failed and the faces are separating. Plex Group explains why it happens and how a proper rebuild works across the Cotswolds and Gloucestershire.

Read more

Why Is My Gravel Driveway Full Of Potholes

Potholes in a gravel driveway mean the gravel is sitting on soil with no proper sub-base or membrane beneath it. Plex Group explains the causes and the permanent fix across Worcestershire and the Cotswolds.

Read more