What we can offer

Suppliers and Installers of UPVC Windows, Doors, Conservatories, Garage Doors, Composite Doors, Fascias and Guttering.

We supply and install the highest quality Fascias, Soffits and Guttering all with a written guarantee.

Get in touch

Please don't hesitate to contact us as we're more than happy to help.

Image Gallery

Click the link below to view our online image gallery

Welcome to our website

We at St Austell Bay Plastics and Windows have years of experience behind us and all of our products are made using only the finest components.

All of our installers are highly experienced and fully qualified, so that you can be assured of a high quality installation for your home.

Our range of high quality profiles & multi point locks as standard, with St Austell Bay Plastics and Windows you're in safe hands.

All of our large openers come with a 9 point lock as standard, all our doors are fitted with a deadbolt and hooklock system for the ultimate in security.

By conforming to exacting government standards such as BS7950 we can guarantee you a secure, reliable and perfect installation every time.


We only use the industry leading profiles to manufacture all of our systems. The systems offer exceptional quality in terms of both appearance and performance.

The REHAU system is extruded from RAU-PVC 1406 (unplasticised, modified polyvinyl chlorides) which is vigorously tested to temperatures as low as -40 and up to +60 without losing any quality or durability.

The REHAU profile offers much more than just exceptional performance but superb aesthetics. The smooth sight lines and perfectly cut angles give the profile a beautiful and professional finished touch.

With our extensive range of colours, styles, hardware options, locks & gearing you can guarantee that not only will you get a product that can suit every home but is extremely durable and will last for years to come making our PVCu products a cut above the rest!

With an ever increasing crime rate it has never been so important to have that extra bit of security for your home. That is why all of our windows have up to 9 locking points making them a market leading upvc product fit for todays security requirements.

  • Inboard eurogroove provides greater security.
  • All lock gearing is contained inside the profile isolated from any moisture.
  • Larger reinforcement chamber providing a very strong robust system.
  • Chamber profile with unique drainage system giving excellent thermal performance.


STANDARD COLOURS - Our products are available in different colour options as standard, so whether you want a classic, crisp white window or a elegant golden oak patio door then look no further!

ONLY WINDOWS - Our extensive coloured foil selection is available through out our range. Foil on white and are grained to give an authentic wood finish. Foiled on both sides is available but with a longer lead time.