Celotex PIR Insulation Delivered to Swansea
We deliver Celotex PIR insulation boards (now being rebranded as Sopratherm) to Swansea and across south-west Wales. Swansea jobs range from hillside terraces above the city to coastal homes on Gower and new garden rooms in the suburbs, and this guide covers what to order and how delivery works.
Delivery to Swansea: 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 Swansea
We deliver to SA postcodes across the city, including Uplands, Sketty, Mumbles and Morriston, and out to:
- Gower
- Neath and Port Talbot
- Llanelli and Carmarthen
- Ammanford and the Swansea Valley
Typical Swansea projects and which Celotex boards to use
Hillside terraces and solid walls
Many older Swansea terraces have solid walls and face wind and rain off the bay. Insulated plasterboard is a common way to insulate them from the inside:
- Celotex PL4000 Insulated Plasterboard 2400 × 1200mm – 37.5mm (25mm + 12.5mm, now Sopratherm PL4025, 2.88m² sheet) – £40.21 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
- Celotex PL4000 Insulated Plasterboard 2400 × 1200mm – 62.5mm (50mm + 12.5mm, now Sopratherm PL4050, 2.88m² sheet) – £53.69 a sheet ex VAT
Solid walls in an exposed spot need care with damp, so make sure the outside is sound and get advice on the right build-up first. See how to fit insulated plasterboard to a solid wall.
Garden rooms and home offices
Garden rooms need insulating in the floor, walls and roof. GA4000 boards come in a wide range of thicknesses, all 2400 × 1200mm (2.88m²) with a declared thermal conductivity of 0.022 W/mK:
- 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 – 75mm (now Sopratherm GA4075, 2.88m² sheet) – £28.24 a sheet ex VAT
- Celotex GA4000 PIR Insulation Board 2400 × 1200mm – 100mm (now Sopratherm GA4100, 2.88m² sheet) – £34.30 a sheet ex VAT
Our garden room materials guide lists what else you will need.
Thin boards for tight spaces
For window reveals, over-rafter layers and places where you only have a little depth, the TB4000 thin boards help:
- Celotex TB4000 PIR Insulation Board 2400 × 1200mm – 20mm (now Sopratherm TB4020, 2.88m² sheet) – £16.48 a sheet ex VAT
- Celotex TB4000 PIR Insulation Board 2400 × 1200mm – 25mm (now Sopratherm TB4025, 2.88m² sheet) – £13.56 a sheet ex VAT
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 Swansea delivery right
- Tell us about steep or narrow streets. Some hillside roads are steep, narrow or lined with parked cars. Tell us about access when you order so we can plan the delivery.
- Plan where the boards go. On a sloping site, choose a flat, dry spot to store the boards and keep them covered.
- Someone must be there to receive the delivery, and we need a contact number for the driver.
Frequently asked questions
What does delivery to Swansea cost?
£40 + VAT (£48 inc VAT) on every Celotex order to mainland Wales. The minimum order is £400 ex VAT, and there is no free-delivery threshold for Wales orders.
Do you deliver to Gower?
Yes. Gower is part of mainland Wales, so the same rules apply. Tell us about narrow lanes or tricky access when you order.
Can I get next-day delivery?
No. We confirm the delivery date when your order is placed and do not offer next-day delivery.
Can I collect instead?
No. We are delivery only, with no collection.
How to order Celotex for Swansea
- Enter your Swansea 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.
Heading east? See 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).