Quality Plastic & Hardware Products for both Trade & Public

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Plastic Building Supplies for Trade & DIY

5% OFF
PVC Soffit

Special offer this week only!
140mm skirting boards

10% OFF

10% OFF
PVC Fascia boards

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Inspiring ideas
for the home

Award winning Twinson decking

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Featured products

4M Downpipe Half Round Black

4M Downpipe Half Round Black.

  • Type: Standard Domestic Half Round Guttering
  • Width: 68mm
  • Length: 4000mm (4mtr)
  • Material: PVC
  • Colour: Black
  • Ra...

    Regular £21.96

    Special Price Excl. Tax: £6.41 Your price
    Inc. Vat

Fascia Bracket Industrial Half Round Gutter Black

Fascia Bracket Industrial Half Round Gutter Black. 

  • Type: 150mm/6" Industrial
  • Depth: 70mm
  • Int Width:170mm
  • Ext Width:175mm
  • Material: PVC
  • Colour: Bla...

    Regular £7.21

    Special Price Excl. Tax: £2.10 Your price
    Inc. Vat

Stopend Internal Industrial Half Round Gutter Black

Stopend Internal Industrial Half Round Gutter Black.

  • Type: 150mm/6" Industrial Guttering
  • Depth: 70mm
  • Material: PVC
  • Colour: Black
  • Range Description: ...

    Regular £4.66

    Special Price Excl. Tax: £1.36 Your price
    Inc. Vat

Principality (Plastics and Hardware) is a specialist plastic building supplies merchant for the trade & DIY.  We offer high quality plastics and hardware for use inside and outside the home. We stock essentials such as bathroom, wall & ceiling panels, guttering systems and plumbing fittings as well as specialist luxury items like underfloor central heating systems and integral window blinds. Our focus as a plastic building supplies merchant is on supplying low maintenance products that look great and stand up to the rigors of everyday use.

We sell our plastic building supplies through our stores in Gloucester and South Wales and online. We’re delivering nationwide from Monday to Saturday. No matter where you are in the UK or Ireland we’ve got you covered.

Easy to install and hardwearing plastic and hardware products

The products available here are easy to install for professional fitters, builders and amateurs alike. If you’re performing DIY take a look at our wide range of tools and accessories to help you fit wall and ceiling panels to a professional standard. Our bathroom and kitchen wall and ceiling panels and other panelling units are simple to fit, quickly establishing a protective barrier against moisture. The plastics used in all our panelling units are hardwearing and long lasting, achieving a finish that is easy to maintain.

Leading brands through a leading supplier  - ask for our online prices in store

As plastic building supplies dealers we have long standing partnerships with outstanding brands like Deeplas and Polypipe. We trust the quality of their products and the expertise behind them. The advantages for you to purchase from Principality are great products at unbeatable prices because we’re often sourcing directly from the manufacturers.
Benefit from FREE delivery on orders over £50 and regular special offers for more great savings. Orders are dispatched quickly, usually on the same day when placed before 12pm. And don’t forget to talk to one of our members of staff to receive our online prices in store.

Great service from industry plastic and hardware experts

We have over 20 years experience as plastic building supplies traders. Over that time we’ve honed our offering to bring you low maintenance products. Our customers  are always uppermost in our minds and we expand and change our wide range of plastic building supplies based on your needs. Find out about the history of the business on our about us page