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.

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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.

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Built for Clients Like You

Neglected to Timeless

A neglected garden reimagined into a stunning rustic retreat, featuring reclaimed brickwork, a charming patio, and vibrant planting—blending timeless character with thoughtful design.

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Cheltenham Garden Modernisation

A complete garden overhaul in Cheltenham, transforming an overgrown, rat-infested space into a sleek, low-maintenance outdoor oasis with porcelain paving, integrated lighting, and a rat-proof brick wall.

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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.

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