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Heritage Doors and Windows


Heritage Doors and Windows

From Cosy Cottages to magnificent towers, Belfast boasts an array of breathtaking heritage properties. 

Restorations of historically or architecturally important buildings are on the increase across Northern Ireland, and the Designer Door Company can provide accurately recreated steel-look heritage doors and windows to help preserve their original charm and beauty.

Especially suitable for the restoration of period properties, our elegant aluminium heritage doors and windows are approved by local planning departments for use in listed buildings and heritage led regeneration projects in conservation areas.

Long Term Investment For Heritage Buildings

A perfect solution for replica refurbishments with planning constraints or structures that require preservation, expressive statement steel-look doors and windows from the Designer Door Company can help contribute towards the protection of a fragile building by minimising the number of times the frames need to be replaced. 

With a 40 year longevity, aluminium boasts the longest lifespan of any window frame material and will not rust or rot, and as all materials are fully recyclable, our heritage doors and windows will help to reduce your environmental footprint.
The slim profiles are lightweight and high strength, and can be finished in any colour.

Low maintenance (simply wipe clean), our aluminium doors and windows are a long term investment when maintaining a heritage property. 

Our aluminium frames are powder coated for a weather resistant finish and dry glazed units can be replaced as advancements in modern glazing performance continue to improve, reducing overall maintenance costs over time. 

Thermally Efficient

The heritage range from the designer door company features aluminum frames with a thermal break using Polyimide, an excellent insulator with a thermal conductivity 160 times higher than steel. 

This helps raise the internal temperature of the property, reducing the risk of condensation and saves money in heating costs. 

When coupled with our ‘A’ rated glass, aluminium heritage doors and windows from the Designer Door Company will withstand all weather conditions in Northern Ireland. 

Iconic Design

Sympathetic to the style of steel-look doors and windows, recreating the original design of industrial, victorian or art deco buildings is possible with our matching hardware options.
Peg stays in monkey tail, bulb end or art deco styles can be finished in a variety of colours, including anodised metallics!

Impressive structures with unusual shapes will benefit from our high security, multi window coupling option, which is more cost effective than steel and allows care and precision during the installation process. 

Modern replacements of traditional materials from the Designer Door Company will sympathetically recreate the authentic and iconic design of years long gone, but with the advanced performance, security and durability of aluminium. 

High standards of craftsmanship and quality materials coupled with the expertise and attention to detail you can expect from the Designer Door Company will provide you with Heritage doors and windows of distinction for all renovation projects in Belfast and throughout Northern Ireland. 


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‘A’ energy rated as standard

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.

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.


Get A Quote.

Get a Free In-home Consultation With Our Sales Consultant.

Designer Door Company

252 Upper Newtownards Road
Belfast BT4 3EU
United Kingdom

T: +44 28 9O99 6OO9