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Installation Process

Unlike other glazing suppliers, we don’t leave you on your own after the sale. We will support you throughout the installation process and will be on hand for any questions or queries you may have.
  • Support throughout the whole process
  • Installer recommendations if necessary
  • Advice available to ensure products are suitable
  • Fully accredited by the BSI as well as for our health and safety procedures
Sales and Support

Installation support throughout

We have built up trust and loyalty with our customer base due to our dedication to provide ongoing support and first class service. Whatever issues you have, we will do our best to resolve these as swiftly as possible.

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White windows for large project

We only use the best

If you require installer recommendations, we will be able to provide you with contractors that we trust to do a good job. Any subcontractors we use go through a rigorous vetting process before being appointed. They will all be fully qualified and follow the correct standards in terms of building regulations and safety. We take the same due diligence in the installation process as we do with the design so everything is taken care of.

We are extremely proud of all our accreditations which show our commitment to being the best we can. We have surpassed the acceptable standards set by the Contractor Heath and Safety Assessment Scheme (CHAS) as well as all our products passing the requirements set by the BSI. Quality is assured as we adhere to the ‘zero defects’ culture which is supported by our membership of Construction Line. You can rely on our product range and service.


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  • 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.

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  • 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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