O'SULLIVAN GLAZING SYSTEMS LIMITED

O'Sullivan Glazing Systems Limited is a specialist provider of high-performance glazing solutions, offering both double and triple-glazed products that meet the stringent 'A'-rating standards for energy efficiency. The company supplies and fits a comprehensive range of glazing items, from traditional doors and windows to roof lights, vertical sliders and bespoke glass partitions. Their portfolio also includes Velux windows, conservatories, sun rooms and porches, giving homeowners and commercial clients alike the flexibility to enhance natural light while maintaining thermal comfort.

Beyond new installations, O'Sullivan Glazing Systems delivers a full service and repairs operation, handling everything from routine maintenance to the replacement of existing windows and doors. By combining quality materials with skilled craftsmanship, they help customers across Ireland achieve lasting, energy-saving solutions for any property.