Products About Us Projects Updates Contact Back View All Products Insulation Pipeline Supplies Ventilation and Climate Control Back View All Insulation Acoustic Sheets Ancillaries Armaflex Ductwrap Insulation Foil Tape Isover Insulation Identification Labels Insulation Jackets Kingspan K-Stop (Fire Stopping) Paroc Insulation Phenolic Phenolic Blocks PIR Boards Rockwool Slabs Tubolit Temati PIB Sheeting Isogenopak Acoustic Lag Bostik Acoustic Wrap Back View All Pipeline Supplies Albion Valves Ancillaries Barrel Nipples Bi-Metal Flanges Brass Fittings Screwed BSP Copper Compression Fittings Copper Endfeed Fittings Copper Soldered Rings Expansion Bellows Fabricated Products Fixing and Fasteners Flamco AAV Flanges Flange Gaskets Gauges Gresswell Relief Valves Loctite Nabic Valves Pipe Stainless Steel Screwed Fittings TSP Malleable Fittings Victaulic VSH Xpress Copper Welding Fittings Wrought Iron Fittings GF Malleable Fittings Back View All Ventilation and Climate Control Access Doors Ancillaries Blauberg Fans BSB Fire Dampers Duct Flange Systems Flexible Ducting Grilles and Diffusers PVC Duct Ruck Fans Spiral Ventilation Duct and Fittings Vent Axia Fans Woods Fans Volume Control Dampers Heat Recovery Units [email protected] 028 9077 7788 NI's largest suppliers, distributors & stockists For the Heating, Ventilation, Climate Control and Insulation industries. Established 1968 1'000s Products in Stock 40,000 sq ft Product Warehouse Who We Are McCaig Collim is Northern Ireland’s leading independent supplier, distributor and stockist for the heating, ventilation, climate control and insulation industries. Founded in 1968 by business partners Norman McCaig and Bob Collim, the company has grown to become a trusted name within the mechanical, heating, ventilation, pipeline and insulation sectors across Northern Ireland.

Operating from our 40,000 sq ft facility near Belfast, we stock and distribute a comprehensive range of pipeline, heating, ventilation and climate control products. Our dedicated transport and logistics team ensures reliable daily deliveries throughout Ireland, while our trade counters provide convenient access for customers collecting directly from our warehouse. Today, McCaig Collim continues as a family-run business, led by Managing Director Neil Collim, son of co-founder Bob Collim.

With over five decades of experience behind us, we remain committed to the values that have shaped the company since the beginning — quality products, expert knowledge and dependable customer service. At our Belfast headquarters we hold an extensive range of stock from market-leading manufacturers, ensuring customers have access to reliable, high-quality products when they need them. Whether collecting from our two trade counters or receiving deliveries through our fleet of vehicles operating across Ireland, customers can rely on McCaig Collim for prompt service and competitive pricing.

Our aim is simple: to supply quality products backed by the technical support and industry knowledge our customers depend on. One of McCaig Collim’s greatest strengths is our experienced and knowledgeable team. Our staff collectively bring hundreds of years of technical sales and industry experience within the heating, ventilation and mechanical services sectors.