Durable Washroom Systems

Willis Systems’ P-13 panel systems are designed for harsh washroom environments where panels need to be waterproof and capable of withstanding daily jet wash cleaning. They are well suited for public buildings and leisure centres with high footfall in areas prone to abuse and vandalism.

These panel systems are manufactured using 13mm Compact Solid Grade Laminate (SGL) panels in sections to suit access requirements, pre-hung at works to 25mm WBP plywood sub frames. They are offered with on-site framework factory made to fit the panel units.

Our washroom panel systems are offered as either supply only or supply and fit. Panel units come either fully pre-plumbed as part of an Integrated Plumbing System (IPS) or as an economical Duct Panel System (DPS), where sanitaryware is provided by others but the panels are fully prepared with fixing holes and apertures at works to enable easy onsite appliance fitting.

IPS Systems

Our fully integrated plumbing system (IPS) is bespoke and includes on-site survey and CAD drawings for the total package. All Willis IPS units arrive fully assembled, including pre-hung sanitary ware, sealed and fitted, and universal connections to ensure quick and simple on-site hook up to services.

All units are pressure tested off site, therefore removing the onsite interface between joinery & plumbing trades.

As we are not a subsidiary of a sanitary ware company, we are free and able to use any combination of vitreous china and stainless steel, as well as high tech no-touch IR controls from leading brands at very competitive rates.

DPS Systems

DPS panel units are a cost-effective alternative to IPS where the customer supplies the sanitaryware.

Modular panel units are pre-hung at works to 25mm WBP plywood sub frames and supplied with pre-bonded frame fascias. Our DPS panel units are normally supplied with factory cut outs to suit the customers’ sanitaryware. On site installation time is considerably improved as all fixing points and waste holes are pre-drilled.


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IPS Frame Options

    • Wall to Wall Situation (Frame Type BP1): Single units, or ranges of units, normally supplied with framework and fitted prior to the fit of the modular panel unit.
    • Corner Situation (Frame type BP2): Factory finished corner box-out frame – modular panel unit is fitted within on site.
    • Stand Alone Situation (Frame type BP3): Factory finished 3-sided box-out frame – modular panel unit is fitted within on site.


    • Panels with factory made cut-outs to suit sanitaryware.
    • Modular panel widths for DPS system, bespoke panel widths for IPS system.
    • 13mm solid grade laminate panels complete with radiused or chamfered edges.
    • Panels pre-hung at works to 25mm WBP plywood subframes with secret fixings.
    • Panels can be requested with hinged access for ease of maintenance.
    • Cam locks available to secure panels if required.