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William Coates

William Coates

Formed in 1961 by William Weir who was joined a year later by Samuel McQuiston, Weir & McQuiston Ltd has developed and grown into one of Northern Ireland’s leading mechanical & electrical building services contractors.

At William Coates we readily acknowledge the success of the company has been built on the firm foundation of a loyal, dedicated quality workforce whose skills are continually developed through targeted and appropriate training leading to a wealth of expertise. Many of the company’s employees have been with us 20 years plus. This expertise coupled with half a century of experience has seen Weir & McQuiston complete some of the most prestigious M & E installations throughout Northern Ireland and further afield. Installations that cover the full spectrum of commercial and industrial projects in construction, maintenance and fit out (Education, health, office blocks, factories, sports facilities, retail outlets, water treatment works, banks, hotels and night clubs).

For William Coates a job well done is always the top priority with a commitment to understanding customers and their requirements being instrumental in successful project delivery.

Four key words drive the company’s core philosophy; Quality, Value, Service and Delivery, focusing on contract completion, on programme, within budget and to the highest possible standard. This ethos has played a major role in ensuring long term repeat business which is fundamental to our continued success. Many of our clients have been using the services of Weir & McQuiston for more than 30 years

In reaching the milestone of FIFTY YEARS in business in 2011 William Coates embarked on a most exciting development. To mark this historic milestone it was decided that the memory of our founding father Mr. William Coates Weir, should be marked in the most tangible way possible. Weir & McQuiston Ltd became William Coates Ltd.

WILLIAM COATES LTD. – new name same highly motivated personnel,same tradition and ethos, same dedication to Quality, Value, Service and Delivery

Recent clients include BT, Belfast Telegraph, Belfast City Hospital, Royal Victoria Hospital, Carrick Leisure Centre & DW Sports


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