The Designer Door Company is one of the most reputable window installation companies in Northern Ireland, so if it’s quality uPVC replacement windows you need, then look no further.
Our new windows are the perfect choice for homeowners seeking energy-efficient, secure, and stylish windows with minimal maintenance requirements. By offering a variety of styles and customisation options, we cater for all window replacement needs.
Multiple glass options including acoustic, self cleaning, UV protection, laminated, safety, double and triple glazing.
And if you are not sure which windows are right for your property, our friendly and knowledgeable team are on hand to help.
Did you know we also offer supply only options for the trade sector?
Fast lead times and multiple delivery options available for uPVC windows ordered across Northern Ireland.
Every Designer Door Company window comes with a WER ‘A’ Rating as standard. Designed for enhanced energy and thermal performance, Designer Door Company’s multi-chamber design minimises heat loss through the frame, whilst the Soft Coat glass, warm edge spacer bars and high-performance glazing reflects internal heat back into the home whilst absorbing solar energy from outside.
Designer Door Company is Belfast's most innovative supplier of external doors. We design and install bespoke Composite, Aluminium, Patio, Triple-track sliders, French, uPVC, Stable, Bi-fold, and Shaped doors for happy customers across Northern Ireland to suit the style of their home. Our doors are supplied hinged, glazed, and with your choice of accessories. Ultion multi-point locks can also be provided.
