GRP system

One-piece seamless
GRP bathroom pods.

A bathroom pod moulded as a single composite shell. Integral floor, walls and ceiling — engineered to eliminate the joints, seams and silicone interfaces that cause long-term failure.

20+ years manufacturing200,000+ pods delivered

20 wks

GRP lead time

Order to site in twenty weeks.

View the full programme

Anatomy of a pod

One shell.
Five engineered layers.

Every Walker GRP pod is precision-moulded as a single seamless composite — engineered for structural strength, complete waterproofing and a flawless, hygienic finish.

Separate roof panel

One-piece GRP shell

Steel subframe

Premium interior

Integral shower tray

Exploded 3D diagram of a Walker seamless GRP bathroom pod, labelling the separate roof panel, one-piece GRP shell, seamless 90° geometry, premium internal finish, integral waterproof floor and welded steel subframe

01
Separate roof panel
Right-angled GRP roof lifts clear for services access and installation.
02
One-piece GRP shell
Single moulded seamless body with smooth, hygienic gel-coat finish.
03
Premium interior finish
Hard-wearing internal GRP surface with integrated brassware and sanitaryware.
04
Integral shower tray
Moulded tray with built-in falls and a durable, slip-resistant waterproof finish.
05
Steel subframe
Galvanised base grid providing structural rigidity, craning points and level tolerance.

The engineering case

Designed for zero
leak paths.

Traditional tiled pods rely on tile joints, sealants and wall-panel silicone to manage water. The GRP system removes those interfaces from the design entirely.

100% waterproof

Seamless construction eliminates leak paths and moisture ingress.

One-piece strength

Integral floor and wall structure for superior rigidity and impact resistance.

Premium finish

High-gloss gel-coat surface, easy to clean and built to last.

Faster installation

Factory-built pod reduces on-site labour and shortens programme.

Hygienic surface

Smooth, non-porous gel-coat resists bacteria and supports easy maintenance.

Long service life

Designed to perform across the full lifecycle of the building.

Specification

Engineered to project.

Construction: Moulded one-piece GRP composite
Floor: Integral, anti-slip gel-coat
Walls: Seamless gel-coat, no panel joints
Ceiling: Sealed, mechanically ventilated
Subframe: Optional galvanised steel base
Services: Pre-installed, pre-tested
Finishes: Specified to project requirement
Compliance: Manufactured to applicable UK building regs

FAQ

GRP pods, answered.

What is a GRP bathroom pod?

GRP (Glass Reinforced Plastic) is a composite material moulded into a single, seamless bathroom shell. The Walker GRP pod combines floor, walls and upstands into one continuous structure, with services pre-installed and tested in the factory.

How is a seamless GRP pod different from a flat-pack pod?

Not every pod is created equal. Flat-pack pods are produced in up to eight separate parts and rely on up to 30 metres of silicone to seal the joints between panels. Those joints will eventually fail — it is a case of when, not if. A Walker GRP pod is moulded as one continuous shell, so the leak paths simply do not exist.

Why is seamless GRP better at preventing leaks?

Preassembled flat-pack panel bathrooms rely on silicone seals and joints between panels to prevent water escape. Those joints will fail over time — it is just a matter of when. A Walker seamless GRP pod has no joints, no seams and no silicone-dependent panels — the water cannot escape, so the pod will never fail.

What sectors are GRP pods used in?

Student accommodation, hotels, Build to Rent, PRS, healthcare and residential schemes where leak risk, programme certainty and long-term performance matter.

How is the pod delivered to site?

Fully fitted, fully tested, and craned into position from a delivery vehicle. Connections to incoming services are made on site by the contractor.

Can the interior be specified to brand standards?

Yes — fixtures, fittings, lighting and accessories are specified to project requirements. The GRP shell defines the structure; the interior specification is flexible.

Manufactured in the UK