Freestanding — Trade Supply

Composite GRP
Garden Buildings

Fully composite freestanding garden buildings for UK trade — timber-free, rot-free, assembled in 2–3 days from a complete labelled kit.

The Detail

Engineered for British Weather,
Built for Trade Installers

The patented GRP framework to BS EN13706 is pre-fabricated to drawing in our Liverpool factory, labelled for sequence, and assembled on site in two to three days — through side gates, no plant or craneage, on simpler strip or pad foundations.

Insulated floor, wall and roof panels deliver U-values engineered to rival a modern extension — a genuine year-round studio, home office, gym or snug your customers can use every day.

Completely timber-free: no rot, no swelling, no repainting schedule, no callbacks for swollen frames or rotten cills. Backed by the 40-year LEKA component warranty and a documented QC pack with a complete bill of materials in every kit.

At a glance

  • Patented GRP framework to BS EN13706 — timber-free
  • Insulated floor, walls and roof; year-round U-values
  • 2–3 day assembly from a complete labelled kit
  • Fits through side gates — no plant or craneage
  • Eco-friendly, UV-resistant, weather-resistant panels
  • Four core sizes: Keswick, Windermere, Kendal, Ambleside
  • 40-Year LEKA Component Warranty — trade only

Supply

Confidence In Your Supplier

Panels precision-cut in our Liverpool factory. ~3,000 roof and building systems shipped a year at a 95% on-time delivery rate.

Range

Grow Your Product Range

Add a high-margin, low-callback product to your offer — no steel or aluminium thermal bridges, no timber maintenance liabilities.

Interior

A Blank Canvas That Sells

Office, studio, gym, games room, therapy room — show customers the possibilities and close more sales.

The Range

Four Core Sizes.
Bespoke Everything Else.

Four named models cover most jobs — plus bespoke layouts, cladding and finish options when the job calls for it.

GRP Garden Building

The Keswick

GRP Garden Building

The Windermere

GRP Garden Building

The Kendal

GRP Garden Building

The Ambleside

Why trade installers choose it

Why Installers Choose Our
Composite Garden Buildings

Lightweight composite build

Everything goes through side gates with two-person handling — no plant, no craneage, simpler foundations.

Leka Insulated Board

Panels labelled to the sequence drawing with cable routes pre-planned — a predictable, repeatable build.

Timber-free, rot-free for life

No callbacks for swollen frames or rotten cills, and no repainting schedule for your customer. Ever.

Improved energy efficiency

A genuine year-round space — office, studio, gym or therapy room — not a summer-only shed.

10,000+

UK Homes Fitted With Leka

3,000

Systems Fabricated Yearly

95%

On-Time Delivery

40 Yr

LEKA Component Warranty

Ready to Spec This
On Your Next Job?

Send site measurements, a survey sketch, or a short description of the job — price and realistic lead time usually within one working day.