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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3 March 2016
Woodlands Park – 3G Playing Pitch & Pavilion

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Quality & Standards

McQuillan Company Policies


Compliance Certificates

  1. John McQuillan (Contracts) Ltd
  2. McQuillan Quarries
  3. McQuillan Envirocare
  4. McQuillan Analytical Services
  5. McQuillan Skiphire
  6. Patterson Outdoor Cleaning

At McQuillan Companies we are committed to the highest standards in the products and services we supply. Each of our company's holds relevant and independently assessed management system certifications to confirm our technical and managerial capability. These are as follows:


  • ISO 9001 Quality Management System
  • ISO 14001 Environmental Management System
  • OHSAS 18001 Occupational Health and Safety
  • National Highway Sector Schemes 12D 13A and 16.
  • BBA HAPAS - Approved Manufacturer and Installer of SMA Thin Surfacing System
  • ConstructionLine
  • BS EN ISO/IEC 17025:2005
  • Construction Products Directive 89/106/EEC (CE Marking)


Customers who choose McQuillan Companies are assured of a product, delivery and service that will fulfill requirements and in which health, safety, environmental best practice and quality is always a top priority.

We are committed to delivering exceptional levels of customer care through the implementation of our ISO 9001 Quality Management System. And aim for year-on-year improvement in our level of Customer Care. We recognise the primary importance of customers to all our businesses and will endeavour to consistently satisfy our customer's present and future requirements by ensuring every aspect of our quality, specification, availability and supply, of a product or service, is of the highest possible standard.

As a responsible company with a concern for the environment, we manage our environmental impacts through the implementation of our ISO 14001 Environmental Management System which is independently accredited by SGS Ltd. Our environmental commitments are stated in our Environmental Policy and copies can be provided on request.

To maintain our high standards, our Safety Management system has been accredited to BS OHSAS 18001. We are committed to effective health and safety management and the adoption of best health, safety and welfare practice across all our businesses, including the continuous improvement of our health, safety and welfare performance.


Login to McQuillan Companies Management Systems

    McQuillan Companies operate under an Integrated Management System which is embedded in all aspects of the organisation. It covers the areas of:

    • Structure & Scope
    • Leadership
    • People
    • Policy & Strategy
    • Partnership & Resources
    • Processes
    • Customer Satisfaction
    • Product Results
    • Problems
    • Review
    • Key Performance Results
    • Improvements


      Our Company System is documented in 6 parts:

        • Policy Manual and including the company's policy statements
        • Management Procedures
        • Health & Safety Procedures
        • Environmental Procedures
        • Operational Procedures
        • Environmental Work Instructions


        Management procedures within the manual are split down into 9 parts

          • Training, Awareness & Competence
          • Document, Data & Record Control
          • Internal Auditing
          • Non Conformance, Corrective & Preventative Action
          • Consultation, Communication & Complaints
          • Monitoring & Measurement
          • Sourcing of Subcontractors & Suppliers & Purchasing
          • Emergency Preparedness & Response
          • Objectives & Targets (Management Programmes)


          We ensure by ongoing monitoring, audit (internal and external), and review, that the Company maintains a high standard of Quality Assurance and remains fully compliant with current legislation and best industry practice.