Free Delivery Over £150 inc vat
(Some exclusions apply)
Secure SSL Payments
Buy with Confidence
Click + Collect
In as little as 1 hour
Huge Stock Range
Fast Dispatch & Delivery
Welcome to Building Plastics, your trusted supplier of high-quality uPVC building products in the UK. We offer a comprehensive range of external cladding, fascias and soffits, guttering systems and plastic building supplies for both trade professionals and DIY customers.
Read more
Whether you're upgrading your home exterior or working on a large-scale project, our extensive range of building plastics provides durable, low-maintenance solutions designed to last. From uPVC cladding boards in shiplap, weatherboard and wood-effect finishes to complete roofline systems and drainage products, we stock everything you need for reliable, long-lasting results.
Our external cladding range includes premium systems such as Fortex and Durasid, available in a wide choice of colours and styles to suit both modern and traditional properties. These products are designed to deliver the appearance of timber with none of the drawbacks such as rot, warping or ongoing maintenance.
In addition to cladding, we supply a full selection of fascia boards, soffits, guttering and drainage systems, helping you complete your project with a consistent, professional finish. With competitive pricing, fast delivery and a large stock range, Building Plastics is your one-stop shop for plastic building materials in the UK.
Browse our full range of external cladding, fascias and soffits and guttering systems to find the right products for your project.
Latest deals
Fortex 333mm Double Shiplap 5m | Anthracite Grey
0 review(s)
Fortex 333mm Double Shiplap 5m | Anthracite Grey is an external cladding product for external cladding projects. 333mm, 5m; Anthracite Grey finish. Product code: FFFCD333EAG.
Fortex 333mm Double Shiplap 5m | Argyl Brown
0 review(s)
Fortex 333mm Double Shiplap 5m | Argyl Brown is an external cladding product for external cladding projects. 333mm, 5m; Brown finish. Product code: FFFCD333EAB.
Fortex 333mm Double Shiplap 5m | Cappuccino
0 review(s)
Fortex 333mm Double Shiplap 5m | Cappuccino is an external cladding product for external cladding projects. 333mm, 5m; Cappuccino finish. Product code: FFFCD333ECAP.
Fortex 333mm Double Shiplap 5m | Colonial Blue
0 review(s)
Fortex 333mm Double Shiplap 5m | Colonial Blue is an external cladding product for external cladding projects. 333mm, 5m; Blue finish. Product code: FFFCD333ECLB.
Fortex 333mm Double Shiplap 5m | Misty Grey
3 review(s)
Fortex 333mm Double Shiplap 5m | Misty Grey is an external cladding product for external cladding projects. 333mm, 5m; Grey finish. Product code: FFFCD333EMG.
Fortex 333mm Double Shiplap 5m | Pale Gold
0 review(s)
Fortex 333mm Double Shiplap 5m | Pale Gold is an external cladding product for external cladding projects. 333mm, 5m. Product code: FFFCD333EPG.
Fortex 333mm Double Shiplap 5m | Sage Green
1 review(s)
Fortex 333mm Double Shiplap 5m | Sage Green is an external cladding product for external cladding projects. 333mm, 5m; Green finish. Product code: FFFCD333ESAGN.
Fortex 333mm Double Shiplap 5m | Sand
0 review(s)
Fortex 333mm Double Shiplap 5m | Sand is an external cladding product for external cladding projects. 333mm, 5m. Product code: FFFCD333ESAND.
Fortex 333mm Double Shiplap 5m | Slate Grey
0 review(s)
Fortex 333mm Double Shiplap 5m | Slate Grey is an external cladding product for external cladding projects. 333mm, 5m; Slate Grey finish. Product code: FFFCD333ESLG.
Fortex 333mm Double Shiplap 5m | Storm Grey
1 review(s)
Fortex 333mm Double Shiplap 5m | Storm Grey is an external cladding product for external cladding projects. 333mm, 5m; Storm Grey finish. Product code: FFFCD333ESG.
Fortex 333mm Double Shiplap 5m | White
0 review(s)
Fortex 333mm Double Shiplap 5m | White is an external cladding product for external cladding projects. 333mm, 5m; White finish. Product code: FFFCD333EW.
Cedar-effect composite fence kit with aluminium post for a durable, low-maintenance and modern garden boundary.
Charcoal -effect composite fence kit with aluminium post for a durable, low-maintenance and modern garden boundary.
Anthracite composite fence kit with aluminium post for a durable, low-maintenance and modern garden boundary.
Anthracite composite fence kit with composite post for a durable, low-maintenance and modern garden boundary.
Ash White composite fence kit with aluminium post for a durable, low-maintenance and modern garden boundary.
Ash White composite fence kit with composite post for a durable, low-maintenance and modern garden boundary.
Brown composite fence kit with aluminium post for a durable, low-maintenance and modern garden boundary.
Brown composite fence kit with composite post for a durable, low-maintenance and modern garden boundary.
Slate Grey composite fence kit with aluminium post for a durable, low-maintenance and modern garden boundary.
Slate Grey composite fence kit with composite post for a durable, low-maintenance and modern garden boundary.
Modern slatted Charcoal composite fence system with aluminium post, offering durable, low-maintenance and contemporary garden fencing.
Heavy-duty orange grip nitrile gloves with superior strength and comfort. Sizes S–XL.
*** Introductory Offer ***
Heavy-duty orange grip nitrile gloves with superior strength and comfort. Sizes S–XL.
*** Introductory Offer ***
Ultragrime Pro XXL | Multiuse Clothwipes Pack 100 is a fixing and accessory for fixing and installation projects. Product code: UNIWIPEBLUE.
Our brands
Shop by Category
Building Plastics, uPVC Cladding, Fascias, Soffits & Guttering Online
A Supplier you can trust
Building Plastics supplies a wide range of uPVC building products for trade and DIY projects across the UK. Shop external cladding, fascia boards, soffits, guttering systems, internal trims, plastic skirting, drainage products, roofing materials, fixings, sealants and accessories from one convenient online store.
Whether you are replacing old timber roofline boards, upgrading a property exterior with low-maintenance cladding, repairing guttering, fitting internal panels or completing a roofing and drainage project, we stock practical products designed for durable, professional results. Our range includes popular options such as Fortex cladding, shiplap cladding, weatherboard cladding, Freefoam roofline products, Floplast guttering, EPDM roofing, plastic skirting boards, wall panels, silicones, adhesives, wipes and installation fixings.
With free delivery available on orders over £150 inc VAT, secure online payment, click and collect in as little as 1 hour and a large stock range ready for fast dispatch, Building Plastics is a reliable choice for homeowners, installers, builders and trade customers.
Latest Blog Posts
20th May 2026
How to Choose the Right Guttering for Your Property
Choosing guttering might seem simple, but there are several things to think about before buying. The right system needs to suit the roof size, property style, colour scheme, and expected rainfall. A good guttering system should carry rainwater away efficiently...
Read more
19th May 2026
The Best Low-Maintenance Building Products for Rental Properties
Rental properties need to be practical, durable, and easy to maintain. Landlords and maintenance teams often need products that look good, perform reliably, and reduce the need for repeated decorating or repairs. Choosing low-maintenance building products...
Read more
18th May 2026
Introducing our New Range of Manthorpe Slate & Tile Vents
A new addition to our ever-increasing range of roofing products is the Manthorpe Slate and Tile vents. Due to a number of requests we now stock the Manthorpe range of Slate and Tile vents at the best prices.
Read more