Not only are the Aston Lynch windows and doors the most attractive and thermally efficient on the market, they’ve been designed to exceed all relevant building regulations, holding the following accreditations:

Secured by Design

Secured By Design


Products designed with exceptional security features and confirmed as meeting the requirements of the Association of Chief Police Officers.

Bluesky Certification Certified Manufacturer

Bluesky Certification


A UKAS accredited certification body that provides the certification required for door and window manufacturers and installers to apply for membership of SBD licensing schemes.



Assure is an official, UKAS-accredited Competent Persons Scheme authorised by the Department for Communities and Local Government (DCLG) for the replacement of windows, roof windows, roof lights and doors in England and Wales.  All of our Double Glazing Installers are registered with ASSURE.

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Independent Warranty Association


Safeguarding customers’ interests since 1985, they have built up an outstanding reputation for trust, honesty and support, whilst raising the bar for standards within our industry.

They protect our customers’ investments and properties by accrediting only carefully selected professional trades people with a proven history of delivering excellent customer satisfaction.

BS 7412


Specifies requirements for the design, fabrication and performance of windows and glazed doorsets made from PVC-U extruded hollow profiles.  It applies to windows and doorsets manufactured from PVC-U hollow profiles incorporating fusion welded corner joints

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Hallmark Panels Ltd


Being chosen to become a Hallmark Associate shows our commitment to professional installation and a high level of customer service.

PAS 24: Doors & Windows

The British Standard for Enhanced Security Performance, PAS24 testing shows every component has been subjected to a series of tests demonstrating enhanced security performance.

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Made In Britain


We are proud to be a part of the Great British trade market.

All of our windows and doors are manufctured in the UK.

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Double Glazing in Berkshire

Aston Lynch Building Supplies Ltd 2018
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