Do It Right.
Do It Once.

GJT Joinery is Newry’s longest-established VELUX Certified Installer, bringing natural light into homes across the area for over 20 years. Whether you need a new roof window, a straightforward replacement or re-glazing, we deliver a clean, tidy job with no fuss and no corners cut.

Contact Us

Twenty Years of VELUX Experience on Your Doorstep

Gary Trainor founded GJT Joinery after 25 years in the trade, spotting a need for a specialist who could handle every aspect of roof window installation properly. As a VELUX Certified Installer based in Newry, we work with homeowners across County Down and County Armagh who want the job done right the first time. It’s a standard of work you can rely on.

Read more about us
Services

Our Expertise

New Installations

Bring natural light into your loft, bedroom or living space with a perfectly fitted VELUX roof window. We handle everything from cutting the opening to the finished installation.

Replacements

Upgrade an old or failing roof window with a modern VELUX unit for better insulation, improved weather-tightness and a fresh, clean finish.

Glazing

Replace a broken or misted pane without changing the whole roof window. A quick, cost-effective solution that restores clarity and performance.

Servicing and Repairs

Keep your roof windows working properly, stop leaks before they cause damage and extend the life of your installation with our expert maintenance service.

View All Services

Ready to Let More Light In?

Speak to Gary about your roof window project today. Free quotes, fast response and over 20 years of VELUX expertise.

Get in Touch