Celotex PIR Insulation Delivered to Newport
We deliver Celotex PIR insulation boards (now being rebranded as Sopratherm) to Newport in south Wales and the surrounding area. This guide is for Newport (NP postcodes) in Wales. If you are in Newport, Shropshire, that is in England, where Celotex orders get free delivery once they reach the £400 ex VAT minimum.
Delivery to Newport: the key facts
- Minimum order: £400 ex VAT for Celotex (Sopratherm) orders.
- Delivery charge: £40 + VAT (£48 inc VAT) on every order to mainland Wales. There is no free-delivery threshold for Wales orders.
- Delivery date: we confirm the delivery date when your order is placed. We do not offer next-day delivery.
- Coverage: We deliver to mainland Wales. If your site is on an island, call us before ordering to check. We do not deliver to the Scottish islands or Northern Ireland.
- Prices: trade prices online, shown ex VAT, with VAT added at checkout.
Enter your postcode in the delivery postcode box at the top of our website, and the site will show you just the products we can deliver to you.
Where we deliver around Newport
We deliver to NP postcodes across the city and out to:
- Caerleon, Bassaleg and Rogerstone
- Cwmbran and Pontypool (Torfaen)
- Chepstow, Monmouth and Abergavenny (Monmouthshire)
- Blackwood, Ebbw Vale and the eastern valleys
Typical Newport projects and which Celotex boards to use
Extensions on family homes
Single-storey extensions on semis and estate houses usually need floor insulation and a warm flat roof or an insulated pitched roof:
- Celotex XR4000 PIR Insulation Board 2400 × 1200mm – 120mm (now Sopratherm XR4120, 2.88m² sheet) – £44.17 a sheet ex VAT
- Celotex XR4000 PIR Insulation Board 2400 × 1200mm – 150mm (now Sopratherm XR4150, 2.88m² sheet) – £51.66 a sheet ex VAT
- Celotex GA4000 PIR Insulation Board 2400 × 1200mm – 100mm (now Sopratherm GA4100, 2.88m² sheet) – £34.30 a sheet ex VAT
See our warm flat roof PIR guide for typical build-ups.
Garage conversions
Turning a garage into a room usually means insulating the floor, the walls and the ceiling or roof. The GA4000 range covers most of it, and insulated plasterboard is handy on single-skin or solid walls:
- 50mm Celotex GA4050 PIR Insulation Board 2400 x 1200mm (now Sopratherm GA4050, 2.88m² sheet) – £20.94 a sheet ex VAT
- Celotex GA4000 PIR Insulation Board 2400 × 1200mm – 70mm (now Sopratherm GA4070, 2.88m² sheet) – £29.42 a sheet ex VAT
- Celotex PL4000 Insulated Plasterboard 2400 × 1200mm – 52.5mm (40mm + 12.5mm, now Sopratherm PL4040, 2.88m² sheet) – £50.07 a sheet ex VAT
Loft conversions and lofts
For rafter-level insulation in a loft conversion, a layer of GA4000 between the rafters with a thinner TB4000 or insulated plasterboard layer underneath is a common approach. All of the full-size boards are 2400 × 1200mm (2.88m²), and the GA4000, XR4000 and TB4000 boards have a declared thermal conductivity of 0.022 W/mK.
- Celotex GA4000 PIR Insulation Board 2400 × 1200mm – 90mm (now Sopratherm GA4090, 2.88m² sheet) – £37.44 a sheet ex VAT
- Celotex TB4000 PIR Insulation Board 2400 × 1200mm – 30mm (now Sopratherm TB4030, 2.88m² sheet) – £16.64 a sheet ex VAT
Use our PIR U-value calculator to compare build-ups.
Prices are the live website prices at the time of writing (10 November 2026), per sheet, ex VAT. Prices can change, so check the product page for the current price. Celotex boards are being rebranded as Sopratherm, so you will see both names on our product pages.
Getting your Newport delivery right
- Check your postcode first. Enter your NP postcode in the box at the top of the site to see the products we can deliver to you.
- Tell us about access when you order, such as narrow estate roads, parking or a long drive.
- Someone must be there to receive the delivery, and the boards need storing flat and dry.
Frequently asked questions
How much is delivery to Newport?
£40 + VAT (£48 inc VAT) on every Celotex order to mainland Wales, with a £400 ex VAT minimum. There is no free-delivery threshold for Wales orders.
I am in Newport, Shropshire. Does this apply?
No. This guide is for Newport in south Wales. Newport, Shropshire is in England, where Celotex orders that reach the £400 ex VAT minimum get free delivery.
How quickly can you deliver?
We confirm the delivery date when your order is placed. We do not offer next-day delivery.
Do you supply trade customers?
Yes. Our prices are trade prices, shown ex VAT, and we supply builders and homeowners. For larger orders, call or email for a quote.
How to order Celotex for Newport
- Enter your Newport postcode in the delivery postcode box at the top of the site.
- Add the Celotex (Sopratherm) boards you need from our Celotex range, making sure the order is at least £400 ex VAT.
- Enter your mainland Wales delivery address at checkout. Delivery of £40 + VAT is added, and we confirm your delivery date once the order is placed.
Need a quantity check or a quote for a bigger job? Call 03330 908479 (Mon–Thu 8am–5pm, Fri 8am–12pm), email sales@insulationwarehousedirect.co.uk or contact us.
Also near you: Celotex delivered to Cardiff.
More help
- Our Celotex delivery to Wales guide covers the full Wales delivery rules and the whole Celotex range.
- Does Insulation Warehouse Direct deliver to Wales and Scotland? answers the common delivery questions.
- Our PIR U-value calculator and PIR thickness guide help you pick a thickness. Always check your build-up with your local authority building standards or building control team before you order.
- Browse all Celotex Insulation Boards (now Sopratherm) or the wider PIR insulation range (not every PIR brand is available for Wales delivery, so use the postcode box to see what we can send you).