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Security doors

Unique structure security door consisting of metal profiles and sheets brings out all the difference. Made from steel and dressed in wood (waterproof EDM, UMIDAX, Wood Veneer) with three directional armoured locks – high spec premium security doors. Any style, shape or colour – every single security door is bespoke!

Wooden Windows

Wooden sash windows, casement windows, French doors or fixed windows – all top quality that comes in a broad range, double or triple glazed. Any style, size or colour to match all budgetary needs. We can also supply Heritage windows for a Listed Building or a Conservation Area.

We are professionals throughout the whole supply chain and specialise in design, manufacturing and fitting of security doors and windows for over 9 years. The company offers a wide range of doors and windows for houses, apartments, vaults, hospitals, hotels, theatres and many other public and privately owned buildings.

Aluminium Windows

Knight’s Mark aluminium windows can be manufactured in various shapes, styles and adjusted to different architectural styles. Bi Fold doors or sliding doors, casement windows or fixed windows – any RAL colours, anodized colours or even wood imitations. We can offer standard or slimline frame aluminium.

Professional Installation

Professional and friendly installation service is available to carry out doors or windows replacement, because your product is only as good as the installer that has done the job. Our fitters are trained to the highest standard, has over 10 years of experience and are CERTASS certified.

No matter what size of a job Knight’s Mark is offering free quotations with no obligation for security doors and windows. We will also give you the best advice in choosing the best option for you.