McQuillan Companies cover a diverse range of services from civil engineering and construction to quarrying and waste management.

29 April 2016
Solar PV Installation

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5 February 2016
Pattersons Outdoor Cleaning Solutions Ltd have been awarded the Gold Standard ..

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3 March 2016
Ulster University Employability Event

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Compliance Certificates

Patterson Outdoor Cleaning

Our Integrated Management System (IMS) corresponds with the requirements of the following industry standards:


BS EN ISO 14001:2004 (Environmental Management System)
BS EN 9001:2008 (Quality Management System)
OHSAS 18001:2007 (Health & Safety Management System)
NIEA Registered Waste Carriers Licence (Northern Ireland Environment Agency)
MET OFFICE GOLD Gritting Certificate (Northern Ireland Met Office)