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.
uPVC has been dominating the double glazing window market for many years, and for good reason. Every window we supply is incredibly durable, requires little maintenance and is one the most cost-effective ways to add A+ double glazing efficiency to your home.
Our high-quality windows are manufactured under strict quality control in Northern Ireland and are the best energy rated windows on the market, and are made from 80% recycled uPVC components, so they are environmentally sustainable too. Designer Door Company windows come with a high-security frame with a multi-point locking system, for added peace of mind, and provide complete weatherproofing against the cold and rain, so you can rest easy knowing your family are safe and warm.
We design, supply and install many types of windows like casement windows, tilt and turn windows, vertical sliding sash windows and French windows, and if you have an unusually shaped aperture, we also provide shaped windows too, so no matter what your glazing needs are, we’ve got it covered.
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.
