In addition to the growth in sales of its new Paladin range of composite GRP and Steel doors, Cheltenham's Portal Products is also reporting sustained growth in its core business of PVC-U door panels, due in no small part to the introduction of new inverted panels to the range.

Now, 25 per cent PVC-U panels Portal manufactures and sells are from the inverted designs.

Having invested in top of the range vacuum-forming dies and equipment to produce the traditional-look inverted panels on-site, Portal has been receiving praise from fabricators and installers alike.

"People seem to appreciate the aesthetic and practical benefits of inverted panels," said Haydon Statham, sales and marketing manager, "and our customers tell us the quality and definition of mouldings on our panels is second to none.

"Using the very best quality PVC-U skins and employing rigorous quality control mechanisms means we are able to produce panels with an exceptional attention to detail."

Produced onsite at Portal Product's Cheltenham factory, inverted PVC-U panels are available in five different designs with a number of woodgrain and glazing options, including Portal's own bespoke glass design service. The inverted panels are available alongside Portal's expanding range of PVC-U panels and Paladin composite GRP and Steel doors.