Wall-Lag Group commenced business in 1974 supplying and installing cavity wall insulation, loft insulation and draft proofing.
In 1976 a division of the company was created to manufacture windows & doors (Snowdonia Windows & Doors Ltd). A further company was commenced in 1985 (Snowdonia Windows & Doors (Gwynedd) Ltd) to service the Gwynedd & Anglesey area, mainly through the medium of the Welsh language.
Also in 1985 we commenced our own service department (Autocheck Mold) to service & MOT 70 plus vehicles, plant and equipment.
Whilst retail has always been part of our portfolio, in 1976 we commenced commercial operations, which continue to this day, we have had open book partnering relationships with a number of housing associations, working to cost model pricing for approx. 15 years continuously.
In 2009 we commenced operations in Renewable technologies, which see us employ a number of plumbers & electricians; one of our major customers is British Gas.
A thriving factory in Wrexham has cut tens of thousands of pounds from its energy bills by using five Mitsubishi Electric Ecodan CAHV air source heat pumps to heat water used in its production process.