Why County Antrim customers compare our windows and doors
Options for different properties
From replacement uPVC windows to modern aluminium doors, we offer a range of styles and materials to suit different property types and project requirements.
Measured for the opening
Every project starts with accurate measurements and specification checks, helping ensure the selected windows or doors are suitable before manufacture and fitting.
Professional installation
The fitting process is planned around the individual property, with attention given to the opening, access, configuration and final finish.
Window and door solutions for County Antrim properties
Choosing new windows or doors is about more than simply replacing an old frame. The right specification must suit the building, the opening, the way you use the room, and the appearance you want to achieve.
With Smyth Window Systems, customers across County Antrim can compare uPVC windows, aluminium windows, sliding patio doors, bifold doors, French doors, composite doors and other options as part of a planned supply and installation service. Whether you are improving an existing property, working on a new build or updating individual openings, we can work through the available choices before the order is confirmed.


A carefully measured installation starts with the survey
A successful installation begins before the fitting team arrives. When selecting the right product, you must consider the opening dimensions, condition, configuration, glazing, hardware, thresholds, and access.
Through Smyth Window Systems, the survey and installation process is organised around the individual opening. This helps avoid relying on standard assumptions and gives you a clearer specification before manufacture. The result is a more straightforward fitting process and windows or doors selected for the property rather than simply chosen from a catalogue.
Frequently asked questions
What types of windows and doors do you install?
Our range includes uPVC windows, aluminium windows, sliding patio doors, bifold doors, French doors, composite doors and various uPVC and aluminium door options.
Do you work on replacement properties?
Yes. We supply and install windows and doors for replacement projects as well as new-build work. The specification can be tailored around the existing opening and the requirements of the property.
Can you help me compare different materials?
Yes. We can help you consider uPVC, aluminium and composite options based on appearance, glazing, maintenance, configuration and how you want the finished installation to look and perform.
