Sealing, draining and fixing since 1947

The seal that outlasts the roof it’s fitted to

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Find your nearest stockist Open a trade account

Stocked in Bristol, shipped across the UK, Europe, Middle East and Africa

ISO 9001:2015 certified manufacturing and distribution

Technical support from people who fit it — same working day

Start with what you're building

Full product range

Solar SolarDek™ flashings, hooks, panel drainage and pest prevention for PV and thermal Roofing Dektite™, Seldek, Rapid Flash, FastFlash lead replacement and the flat roofing range Drainage DekDrain® A15 to E600 channel, catch pits, couplings and the landscaping range Construction chemicals Adhesives, sealants and surface preparation Plumbing URA and UWA underground water products and pipe connectors

Flashing size finder

Set your pipe outside diameter and we'll show the ring you cut to, and which flashings fit it.

Stepped cone · cut at your size Dektite Premium 30 sizes in this range

Your size — cut at step 4. Hover a range below to see its steps.

Pipe outside diameter

60 mm

Roof type

Roof pitch

0 part numbers match 100 mm pipe OD ranges fit

Stocked nationwide

There’s a branch holding DEKS near you

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1947

The year we invented the rubber pipe flashing

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Read the DEKS story

Certified, listed and specified

ISO 9001:2015BMF memberNBS SourceDataYard MARKMARKMARK

For builders' merchants

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PDFFull trade price list 20263.1 MB · Rev 02 PDFProduct catalogue — all five ranges8.4 MB · 2026 XLSXData feed and product images1.8 MB · Rev 11 PDFPoint-of-sale and display guide2.2 MB · 2026

Open a trade account

Not sure which part you need?

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Send an enquiry 01275 858866