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Quality commercial windows and doors

View our recent Commercial Projects
Apartments at the old Wolsey Knitwear building in Leicester
Windows and doors for project in London

Quality commercial windows and doors

View our recent Commercial Projects
Imperial College, London
One of our commercial projects, utilises slimline uPVC casement windows and doors

Quality commercial windows and doors

View our recent Commercial Projects
Kennedy Gardens Housing Development, Billingham

Services & Products for Commercial Application

With an impressive product range and commercial portfolio, Dempsey Dyer are your ideal partners – whatever the size of your commercial project. Not only do we supply and install a range of high performance windows and doors, but we have many years of experience doing so. This makes us a commercial partner that you can rely on.

Our various accreditations back these statements up. Just a selection of networks that we are approved by include CHAS, Constructionline and Secured by Design. These highlight our priority to supply only those products that meet the strictest of standards.

Whatever the priorities of your commercial project and whatever its size, you can count on a commercial partnership with Dempsey Dyer.

More about us

Dempey Dyer delivery fleet


  • NHS logo
  • Berkeley Group logo
  • William Davis logo
  • Travelodge logo
  • Elliott logo
  • BAM logo
  • Lindum logo
  • Bouygues logo
  • fairview-homes logo
  • Shanly homes logo
  • Bellway logo
  • Kier logo


Installers and other businesses can only work effectively if they have a reliable trade supply – of the highest performing products. Luckily, here at Dempsey Dyer we only supply the latest options from market leaders. This guarantees quality, performance and durability – regardless of the product choice.

  • Reynaers logo
  • Deceuninck logo
  • Accoya logo
  • Teknos logo
  • Maco logo
  • Pilkington logo

Project & Contract Management

We help to ensure all projects run smoothly – and keep to budgets and time scales.

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Environment & Recycling

We have a duty to minimise our effect on the world around us.

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Equality & Diversity

We provide equal opportunities for all and are strongly against any form of discrimination.

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