McLennan Insulation Limited is a specialist in the insulation of Mechanical and Plumbing systems within new and refurbished commercial buildings.

This involves the installing of a range of thermal insulation products including fibreglass, nitrile rubber and polyester to hot and cold pipe systems and air conditioning ducting. We also install acoustic insulation materials to waste and storm water pipes that run within the building framework, to silence disruptive noise.

For three decades we have provided a skilled service to Wellington’s manufacturers. Typical work includes the insulation of steam and process pipework, boilers, flues, generator exhausts, silos, tanks and vessels.

There is a range of specialist materials for medium to high temperature applications including fibreglass, rockwool, ceramic fibre, calcium silicate and foamglas. Much of this work also involves the fabrication and fitting of sheet metal cladding to protect and weatherproof the insulation system.

McLennan Insulation Limited are specialists in fabricating and installing sheetmetal cladding in many forms and applications.
We have skilled staff and extensive workshop facilites which enables us to work with aluminium, stainless steel, galvanised iron and other materials.
Sheetmetal cladding provides weather proofing and protection of insulation in all locations as well as providing an attractive finish.

McLennan Insulation Limited can supply and install Trafalgar FyreWrap.
This product is ideal for use on kitchen extract and other types of ducting where a fire rating is required within the building structure.

McLennan Insulation Limited installs a range of acoustic products that are used to prevent noise breakout from ducting and pipework in both mechanical and plumbing systems.