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Atcost Windows (Capital Plastics Cardiff Ltd)

Unit 10, Llanelli Gate Business Park, Dafen
SA14 8LQ
T: 01554 750031


We have been established as a business since 1992 but our company origins date back slightly further to 1985. Our current MD Richard set the business up with his father Doug in the old Cambrian Works at North Dock, Llanelli. in 1992 whilst in Cardiff they saw a gap in the market for the sale of plastic building materials and windows to the trade and general public so in April of that year Capital Plastics was born and a trade counter was opened in the City. Quick success in the first year of trading and the increase in demand for upvc windows put the company in a position to setup a manufacturing factory based in Llanelli and the name Atcost Windows was formed. Richard and his father Doug relocated their day to day running of the business back to Llanelli and Richards brother in law Steve joined as a director and took charge of running the trade counter in Cardiff. From here the company grew, manufacturing, supplying and installing upvc windows throughout South Wales. In 1993 the company setup a second trade and diy counter in Llanelli which is now based at our head office in Dafen.

Supply Types

  • Commercial Supplier/Installer
  • Domestic Supplier/Installer
  • Re-Seller


Atcost Windows are authorised re-sellers for the SBD member companies listed below: Dekko Window Systems Ltd, Endurance Doors, Euroglaze Ltd, FrameXpress