“we have dealt with insulation warehouse direct multiple times now, offering fantastic prices and service. We will continue to use them for all our upcoming projects”
Insulation · Drylining · Building boards
Trade-price insulation, delivered to your site
IWD supplies genuine trade-price 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).
What our customers say
Read all 28 reviews on Trustpilot (opens in a new tab)-
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“These guys are faultless, nothing is too much bother and they have excelled across the board 11/10”
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Great service
“Ian is really knowledgeable on the products and was able to advise me given i had no clue what i needed. He gives different options where appropriate and the service is second to none. I will…”
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“Excellent from start to finish!”
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“Excellent first class products and service as always”
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The best out there!!
“We’ve used this company many times now in just a couple of weeks. There absolutely amazing, originally it was just going to be a one off but they exceeded expectations and delivered a service that is…”
Free delivery from £400 ex VAT
On insulation, plasterboard and drylining, delivered to sites and homes across England and Wales. Most orders arrive on a Moffett lorry with forklift offload.
- Insulation, plasterboard & dryliningFree delivery, minimum order £400 ex VAT
- Celotex (Sopratherm)£50 under £550, free from £550 (min £400)
- Suspended ceilings£35 under £350, free from £350 (min £150)
- Timber, aggregates & cement£25 from £250 to £499.99, free from £500
- Access panels£15 under £300, free from £300
- Evolution fixings£15 delivery, no minimum
All prices ex VAT. Delivery questions · Full delivery information · Expert advice Mon–Fri: 03330 908479
Shop by application
Popular insulation boards & drylining at trade prices
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Celotex GA4000 PIR Insulation Board 2400 × 1200mm – 75...Celotex GA4000 PIR Insulation Board 2400 × 1200mm – 75...
Regular price £28.59 ex VAT£34.31 inc VATRegular priceUnit price per -
Celotex GA4000 PIR Insulation Board 2400 × 1200mm – 50...Celotex GA4000 PIR Insulation Board 2400 × 1200mm – 50...
Regular price £21.25 ex VAT£25.50 inc VATRegular priceUnit price per -
Celotex GA4000 PIR Insulation Board 2400 × 1200mm – 10...Celotex GA4000 PIR Insulation Board 2400 × 1200mm – 10...
Regular price £34.79 ex VAT£41.75 inc VATRegular priceUnit price per -
Kingspan Kooltherm K103 Phenolic Floorboard 2400 × 120...Kingspan Kooltherm K103 Phenolic Floorboard 2400 × 120...
Regular price £327.53 ex VAT£393.04 inc VATRegular priceUnit price per -
Recticel Eurothane GP PIR Insulation Board 2400 × 1200...Recticel Eurothane GP PIR Insulation Board 2400 × 1200...
Regular price £36.83 ex VAT£44.20 inc VATRegular priceUnit price per -
Kingspan Thermapitch TP10 PIR Insulation Board 2400 × ...Kingspan Thermapitch TP10 PIR Insulation Board 2400 × ...
Regular price £52.35 ex VAT£62.82 inc VATRegular priceUnit price per -
Tapered Edge Plasterboard 2400 × 1200mm – 12.5mm (per sheet)Tapered Edge Plasterboard 2400 × 1200mm – 12.5mm (per sheet)
Regular price £9.16 ex VAT£10.99 inc VATRegular priceUnit price per -
Rockwool RWA45 Acoustic Insulation Slab 1200 × 600mm –...Rockwool RWA45 Acoustic Insulation Slab 1200 × 600mm –...
Regular price £25.18 ex VAT£30.22 inc VATRegular priceUnit price per
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.
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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.
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Trade pricing
Trade prices on every product, shown ex VAT.
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Genuine manufacturer stock
Branded products from leading manufacturers.
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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.
- PIR U-value calculatorFind the PIR thickness you need for a floor, wall or roof to meet Part L, then price the boards.Open U-value calculator
- Insulation calculatorEnter your area, pick PIR boards, mineral wool rolls or slabs and get the number of packs with waste, priced live.Open insulation calculator
- Plasterboard & fixings calculatorRoom size to boards, drywall screws, dot-and-dab adhesive, tape and filler or skim plaster, priced live.Open plasterboard calculator
- Suspended ceiling calculatorSet out a 600 x 600 grid for your room and get main tees, cross tees, wall angle, hangers and tiles, priced live.Open suspended ceiling calculator
- MF ceiling calculatorWork out MF7, MF5, MF6A, hangers, board and screws for a suspended plasterboard ceiling.Open MF ceiling calculator
- Drywall partition calculatorWork out studs and track, door openings, boards, screws and acoustic roll for a metal stud partition.Open partition calculator
Shop by category
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PIR Insulation BoardsPIR insulation boards from Kingspan, Recticel and Mannok in 20mm to 160mm,...
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Drylining & Metal FramingEverything for metal stud partitions, MF suspended ceilings and wall linings –...
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Glass Wool InsulationGlass mineral wool insulation from URSA and ODE – loft roll, cavity...
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Rockwool Acoustic InsulationBuy Rockwool insulation online at ex-VAT trade prices. Rockwool stone wool is...
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Thermal Insulated PlasterboardInsulated plasterboard for dry-lining walls and ceilings in one fix – Kingspan...
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Plastering & Building MaterialsPlaster & Building Materials Looking for high-quality plaster and building materials to...
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Sheet MaterialsHardwood Plywood Softwood Ply OSB Magply
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Suspended Ceilings Tiles & GridSuspended ceiling grid, tiles and hanger wire at trade prices, sold by...
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Screed & FlooringScreed fibres help reduce plastic shrinkage cracking. Screed edging strip is fitted...
Genuine stock from leading manufacturers
Shop by brand
Buy Celotex, Kingspan, Recticel, Mannok, Rockwool, British Gypsum and more online at trade-price, with free delivery on insulation orders over £400 to England & Wales.
Shop PIR insulation brands · Shop plasterboard brands · Shop ceiling brands
Why buy from Insulation Warehouse Direct
IWD (Insulation Warehouse Direct) supplies genuine insulation, plasterboard and building boards from leading manufacturers at trade-price. 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.
Insulation Warehouse Direct (IWD) at a glance
- 775 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 92 buying guides
Latest guide: Insulation and Plasterboard Delivered in Manchester, Liverpool and Across the North West ·
Frequently asked questions
Delivery
Where do you deliver?
We deliver to England and Wales only. We can’t deliver to Scotland, Northern Ireland or the islands.
How much is delivery, and is there a minimum order?
Insulation, plasterboard and drylining: free delivery, minimum order £400 ex VAT. Celotex (Sopratherm): minimum order £400 ex VAT, £50 delivery under £550, free from £550. 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 from £250 to £499.99, free from £500. Access panels: £15 delivery under £300, free from £300. Evolution fixings: £15 delivery, no minimum. All amounts are ex VAT. Full delivery information.
Can I mix products to reach free delivery?
Yes. Insulation, plasterboard and drylining items all count towards the £400 ex VAT minimum. Celotex, suspended ceilings, building materials (timber, aggregates and cement), access panels and Evolution fixings are delivered separately with their own rules above, so they don’t count towards the £400.
When will my order arrive?
Orders are delivered direct from our UK suppliers, so timing depends on the product and your postcode. We confirm your delivery day with you once the order is placed. If you need materials by a particular date, call 03330 908479 before you order and we’ll check for you.
How is my order delivered?
Most insulation and drylining orders come on a Moffett lorry (a truck-mounted forklift), so someone needs to be there to receive it and the drop-off area should be firm and level. See our delivery access and storage checklist.
Ordering and products
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.
Can I pay by bank transfer?
Yes, for larger orders. Call 03330 908479 and we’ll send you our bank details.
Which brands do you stock?
PIR boards from Kingspan insulation boards, Celotex PIR (Sopratherm), Recticel PIR boards and Mannok PIR; mineral wool from Knauf Insulation rolls, URSA glass wool, Isover insulation and Rockwool acoustic slabs; plasterboard from British Gypsum plasterboard, Siniat plasterboard and Knauf; plus Magply boards, 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?
IWD (Insulation Warehouse Direct) is 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.