Explore Door & Window Companies Serving Belfast

All Locks NI is a trusted Belfast-based locksmith service operating 24/7 across Northern Ireland. We specialise in emergency lockouts, lock replacements, and security upgrades for homes and businesses. With over 20 years of experience, our qualified team uses British Standard Approved Locks and provides transparent pricing with no hidden fees.

Northern Windows & Joinery & Joinery specialises in high-quality windows, doors, and bespoke joinery products. With over 40 years of experience, we serve residential and commercial clients across Northern Ireland, offering energy-efficient solutions that blend traditional craftsmanship with modern innovation. Our commitment to quality is underscored by a 10-year guarantee on all installations.

John Hunter Glazing provides comprehensive domestic, commercial, and emergency glazing services across Belfast and Northern Ireland. With over 50 years of industry experience and Glass & Glazing Federation accreditation, we specialise in glass installations, repairs, and maintenance. Our 24/7 emergency service addresses urgent glass damage situations with rapid response and professional solutions.

Dessian Products is a trusted manufacturer of PVCu windows, doors, and conservatories, delivering high-quality, energy-efficient solutions since 1985. Specialising in REHAU profile systems, we combine 40 years of expertise with advanced manufacturing standards like ISO certification and BSI Kitemark compliance. Our products cater to trade installers, house builders, and public sector clients across the UK and Ireland, supported by technical innovation, nationwide delivery, and dedicated customer support.

Belfast Sash Windows offers expert repair, restoration, and installation of sash windows, combining traditional craftsmanship with modern energy-efficient solutions. We specialise in draught-proofing, thermal insulation, and security upgrades for timber and PVC windows. Our team prioritises customer satisfaction through tailored service and sustainable practices.