Insulation · Drylining · Building boards

Trade-price insulation, delivered to your site

Genuine PIR boards, mineral wool, plasterboard, metal drylining and building boards from Kingspan, Celotex, Recticel, Mannok, Rockwool, URSA and more. Free delivery to England & Wales on insulation & drylining (min order £400 ex VAT).

Shop insulationCall 03330 908479
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Popular insulation boards & drylining at trade prices

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Free tool

What thickness of PIR do I need?Use our free U-value calculator

Pick your floor, wall or roof, check it against Building Regulations (Part L) U-value targets and see the thinnest PIR board we stock that meets them.

  • Floors, walls and roofs
  • New build & renovation targets
  • Live prices, ex VAT
Use the U-value calculator

Free, no sign-up. Takes about a minute.

  • Free delivery on insulation (min order £400 ex VAT)

    Insulation: £400 ex VAT minimum, always delivered free. Ceilings only: £35 ex VAT delivery under £350 ex VAT, free from £350 ex VAT. Evolution fixings: £15 flat. England & Wales only.

  • Trade pricing

    Trade prices on every product, shown ex VAT.

  • Genuine manufacturer stock

    Branded products from leading manufacturers.

  • Expert advice by phone

    Call 03330 908479, Monday to Thursday 8am–5pm, Friday 8am–12pm.

Free material calculators

Size your insulation, plasterboard, ceiling or partition and get a full materials list, priced live ex VAT.

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Genuine stock from leading manufacturers

  • British Gypsum logo
  • Cellecta logo
  • Evolution logo
  • FlipFix logo
  • Hadley logo
  • Kingspan logo
  • ODE logo
  • Recticel logo
  • Rockfon logo
  • Rockwool logo
  • SuperFOIL logo
  • URSA logo

Shop by brand

Buy Celotex, Kingspan, Recticel, Mannok, Rockwool, British Gypsum and more online at trade prices, with free delivery on insulation orders over £400 to England & Wales.

Celotex · Kingspan · Recticel · Mannok · Rockwool · Knauf Insulation · Isover · URSA · ODE · SuperFOIL · Jablite · Jackon · Cellecta · Pliteq · British Gypsum · Siniat · Knauf · ALPHA · Hadley · Magply · DuPont Tyvek · Coolag · RCM · Versaroc · Wondertex · Pinex · CaberFloor · Rockfon · OWA · USG Donn · Knauf AMF · TVS · Cipriani · Evolution · FlipFix

Why buy from Insulation Warehouse Direct

We supply genuine insulation, plasterboard and building boards from leading manufacturers at trade prices. Orders are dispatched direct from UK distributors and delivered to your site in England & Wales by Moffett lorry, with delivery timing dependent on stock and location.

Buying in bulk or pricing a whole project? Call 03330 908479 or email sales@insulationwarehousedirect.co.uk for a quote.

Contact us

Insulation Warehouse Direct at a glance

  • 785 products online, priced ex VAT
  • 54 brands, including Kingspan, Celotex (now Sopratherm), Recticel, Rockwool and British Gypsum
  • England & Wales delivery; free on insulation, plasterboard & drylining orders from £400 ex VAT
  • ~30 years of trade experience (Bay Drywall and Insulation Supplies Ltd, Totnes)
  • 6 free material calculators and 82 buying guides

Latest guide: Multi Finish vs Board Finish vs Bonding Plaster: Which Do You Need? ·

Frequently asked questions

Where do you deliver, and is there a minimum order?

We deliver to England and Wales only (not Scotland, Northern Ireland or the islands). Insulation, plasterboard and drylining: free delivery with a minimum order of £400 ex VAT. Suspended ceilings: minimum order £150 ex VAT, £35 delivery under £350, free from £350. Timber, aggregates and cement: minimum order £250 ex VAT, £25 delivery under £500, free from £500. Delivery information.

Are your prices shown with or without VAT?

Prices on the site are shown ex VAT; VAT at 20% is added at checkout. Product pages also show the price including VAT.

Can I get a trade quote for bulk or project quantities?

Yes. For trade pricing on larger orders or whole projects, call 03330 908479 (Mon–Thu 8am–5pm, Fri 8am–12pm) or email sales@insulationwarehousedirect.co.uk with your list.

Which brands do you stock?

PIR boards from Kingspan, Celotex (now Sopratherm), Recticel and Mannok; mineral wool from Knauf Insulation, URSA, Isover and Rockwool; plasterboard from British Gypsum, Siniat and Knauf; plus Magply, Jablite EPS, Jackon XPS and leading suspended ceiling brands.

How do I choose the right insulation thickness?

It depends on where the insulation goes and the U-value you need to meet. Use our PIR U-value calculator to compare thicknesses, the insulation calculator to work out how many boards or rolls you need, and our guide What thickness of PIR insulation do I need? Every product page lists the manufacturer's thermal data.

Who is Insulation Warehouse Direct?

We are the online store of Bay Drywall and Insulation Supplies Ltd, a Totnes-based team with nearly 30 years of trade experience in insulation and building supplies, delivering across England and Wales. About us.