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The Double Glazing & Conservatory Ombudsman Scheme aims to protect consumers and improve the reputation of the glazing industry. Find out more about DGCOS by selecting the relevant page on the right.
Windows
Most properties lose heat through their windows, but energy efficient glazing keeps them warmer and quieter. Energy efficient windows can also make your home more comfortable and reduce your carbon footprint.
Doors
Doors are available in a range of modern materials including uPVC, Composite and Timber. Each material has its own benefits including thermal efficiency and acoustic performance. What's more Doors are available with a range of glazing options including Triple Glazing. Different types of doors include: French Doors, Bi-folding doors and Patio Doors.
Conservatories
Conservatories are a great way to add style and value to your home. They are available in a huge range of bespoke, classic and contemporary designs that can help open up your property and allow more light to enter.
Orangeries
Roofline
Roofline products are designed to protect your home from the elements that can lead to damp and mould on the inside of your home. Replacing your roofline with a modern uPVC alternative will prevent rotting, discolouration and improve the performance of your roof.
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Other products covered under the DGCOS scheme include garden rooms, garage doors and porches. Click on the relevant product to find out more.
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Double Glazing News

ISO 9001 Recertification Confirms Strength of DGCOS Quality Framework

The Double Glazing & Conservatory Quality Assurance Ombudsman Scheme (DGCOS) is pleased to announce the successful completion of its ISO 9001 recertification, with the external audit identifying zero non-conformances and no opportunities for improvement. This outstanding result demonstrates the strength, consistency and maturity of DGCOS’s quality management system and its commitment to maintain…

DGCOS Achieves ISO 9001 Recertification

The Double Glazing & Conservatory Quality Assurance Ombudsman Scheme (DGCOS) is proud to announce that it has successfully recertified for ISO 9001, the internationally recognised standard for quality management systems, with zero non-conformances. This latest achievement underlines DGCOS’ commitment to excellence in operational performance and customer service. The successful outcome of the rig…

Double Win for DGCOS Member Radcliffe Glass & Windows at 2025 GGP Installer Awards

Radcliffe Glass & Windows, a proud founding member of the Double Glazing & Conservatory Ombudsman Scheme (DGCOS), has been recognised for its excellence in the glazing industry, winning two awards at the 2025 GGP Installer Awards. Radcliffe Glass & Windows has been serving customers across Greater Manchester, Lancashire, and Cheshire since 1979. Specialising in the installation of windows, doors, …

2025 DGCOS Installer Newsletter Out Now

Welcome to the 2025 edition of our DGCOS newsletter, which is a recap of what DGCOS has been up to in 2024. Our commitment is to offer truly comprehensive support that enriches your experience at every stage of your installer journey. We strive to cultivate an environment where all members have access to theessential business tools and guidance they need to succeed and grow. Our goal is clear: to …

DGCOS CEO Faisal Hussain Joins Consumer Protection Panel

We are pleased to announce that Faisal Hussain, CEO of The Double Glazing & Conservatory Quality Assurance Ombudsman Scheme (DGCOS), has been appointed as a member of the Consumer Protection Panel. Faisal, while serving as the CEO of DGCOS, will take on this role in an independent capacity, bringing his extensive expertise and commitment to consumer advocacy to this esteemed advisory group. The Co…