Reliable Roofing Services Across Belfast, Bangor & Newtownards
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Our Roofing Services
Expert Roofing Services in Belfast You Can Rely On
Specialists in repairs, new roofs & roof maintenance – trusted locally for over 30 years.
Our Roofing Services
Our Roofing & Building Services in Belfast
At Onslow Roofing & Building Services Ltd, we offer a full range of expert roofing and property maintenance services for homes and businesses throughout Belfast and surrounding areas. With over 30 years of hands-on experience, we deliver lasting solutions using high-quality materials, skilled workmanship, and a commitment to customer care.
Reliable Roofing Starts Here
From new roofs to gutter cleaning, we handle it all — professionally, promptly, and with pride.
Damp Proofing & Rising Damp Treatments
Protect your home from moisture damage. Our damp-proofing solutions target the root cause of rising damp, using trusted methods to safeguard your walls and foundation.
PVC Fascia, Soffits & Gutters
We supply and install durable P.V.C fascia boards, soffits, and guttering systems to improve ventilation, drainage, and your property’s overall look.
Gutter Cleaning Services
Prevent blockages and water damage with regular, professional gutter cleaning. We clear debris and inspect for signs of wear.
Soil Pipes Installation & Repairs
We install and replace external soil pipes, ensuring proper waste flow and maintaining hygiene standards in line with regulations.
New Roof Installations
Professional installation of slate or tiled roofs, built to last in Northern Ireland’s climate. We ensure every new roof is secure, well-ventilated, and beautifully finished.
Flat Roofing Specialists
We install and repair all types of flat roofing, including felt, torch-on, and membrane systems. Ideal for extensions, garages, or commercial buildings.
Corrugated Roofing Work
Affordable and durable solutions for outbuildings, sheds, or industrial spaces. We install and repair corrugated metal or bitumen roofing with precision.
Lead Flashing & Pointing Work
We repair and replace lead flashing around chimneys and valleys, and carry out expert pointing to reinforce and weatherproof masonry.
Loft Insulation
Increase your home's energy efficiency and cut heating bills with professional loft insulation, installed to meet current standards.
Roof Air Vents (Slate or Tile Options)
Proper ventilation prevents damp and condensation. We install roof air vents suited for both slate and tiled roofs for lasting airflow and protection.
Chimney Services
From minor repairs to full rebuilds, we offer professional chimney work, chimney pot fitting, and chimney cap installations to maintain safety and prevent water ingress.
Ready to Get Started? Let's Talk Roofing
Whether it’s a quick repair or a full roof transformation, Onslow Roofing is here to help with reliable service, transparent quotes, and 30+ years of local expertise.