Premium washroom panels

The P-Max panel is designed for a dry washroom environment. 18mm laminate faced or high gloss panels made to suit your panel requirements .

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

IPS Systems

Our fully integrated plumbing system (IPS) is bespoke with on site surveys carried out and CAD drawings produced as part of the package. All Willis IPS units arrive fully assembled with Sanitary ware pre-hung, sealed and fitted with easy universal connections that ensures quick and simple on site connection 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 & stainless steel, as well as high tech no touch IR controls from many leading brands at very competitive rates.

Duct Panel Systems

Modular panel units are pre hung at works to 25mm WBP plywood sub frames with strong galvanized steel secret fixings.

Design styles are as follows


  • Frame type BP1 – Wall to Wall situation: These are single units or ranges of units normally supplied with the framework is fitted prior to the fit of the modular panel unit.
  • Frame type BP2 – Corner situation: A factory finished corner box out frame with a modular panel unit fitted within it on site.
  • Frame type BP3 – Stand alone Situation:A factory finished 3 sided box out frame with a modular panel unit fitted within it on site.


  • 18mm MR chipboard laminate faced with wide ranging choice of HPL colours with matching 2mm pvc edging.
  • Panels pre-hung at works to 25mm WBP plywood subframes with secret fixings.
  • Panels can be hinged if requested for ease of access and maintenance with cam locks to secure panels.
  • Modular panel widths to suit sanitaryware, hoppers, basins, wc’s
  • Gloss HPL laminate availble at additional cost.