40+ Years of Trusted Home Improvements

Based in Bangor and serving homes across Northern Ireland. Generations of experience, exceptional craftsmanship and guarantees you can rely on.

ABOUT ADVANCED NI

40+
Years Experience
Insurance
Backed Guarantees
Local Team
You Can Trust

Exterior of garden room with tiled roof conversion at dusk

A Legacy of Quality Since 1985

Advanced NI was founded in Bangor over 40 years ago with a simple mission: to enhance homes through exceptional craftsmanship, honest advice and reliable service.

From our early days building conservatories, we have grown and evolved, expanding into premium windows, doors, roof conversions and beautiful garden rooms.

Thousands of homeowners across Northern Ireland trust our experience, our people and our guarantees to deliver results that last for decades.

OUR STORY

See Our Projects

1985
Founded in Bangor
1990s
Conservatory Specialists
2000s
Expanded into Windows & Doors
2010s
Roof Conversions & Garden Rooms
Today
40+ Years Strong & Growing

Simple. Transparent. Reliable.

Our guarantees are designed to protect your investment for decades to come.

HOW OUR GUARANTEES WORK

Professional Installation

Completed by our expert in-house team.

Quality Inspection

Every project is thoroughly inspected.

Guarantee Registration

We register your guarantee with our insurance provider.

Your Protection Starts

You receive your documentation and complete peace of mind.

White composite front door with modern porch entrance

100%
Professional Installation
All installations carried out by our own trusted teams.

40+ Years of Installation Excellence

Our skilled teams complete every project with precision and care. We use only premium materials and follow the highest standards from start to finish.