Diverse Services,
One Sustainable Future.

Explore all our services

Hazardous Waste

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Civil Engineering

Road Construction & Maintenance

Road Construction & Maintenance

Demolition

Bituminous Products

Bituminous Products

Flood Prevention
Service

Surface Treatments

Surface Treatments

Quicksurf
(Cold-lay Macadam)

Skiphire & Recycling

Skiphire & Recycling

Fill Materials">

Construction
Fill Materials

Landscaping
Services

Surfacing">

Bituminous
Surfacing

Inert Landfill

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Cleaning
Services

Aggregates">

High PSV
Aggregates

Analytical
Services

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Pre-coated
Chips

Facilities
Management

Our companies

Our commitment to quality has served us well for more than 125 years.

John Mcquillan contracts

Our leading civil engineering and road surfacing company with an established reputation for quality, reliability and exceptional service.

Mcquillan quarries

Northern Ireland’s leading suppliers of top-quality materials such as bituminous products, high PSV aggregate, and premium construction fill materials.

Mcquillan environmental

Northern Irelands leading waste management companies, providing recycling and hazardous waste management to the region’s leading companies throughout GB & ROI.

Mcquillan outdoor

McQuillan Outdoor offers a comprehensive range of outdoor maintenance services that can be combined to offer you a complete outdoor facility management package.

Wallace Contracts

A contracting & facilities management business, working across a number of key areas including insurance repairs, landscaping, winter maintenance, emergency response, building & general maintenance.

Go beyond
At Mcquillan

McQuillan Companies are a Northern Ireland based family run business which incorporates a diverse range of activities including civil engineering, demolition, quarrying, hazardous and non-hazardous waste management, outdoor cleaning and winter services and analytical chemistry.

We give our staff support and training to develop them into industry leaders in their given business sectors. A strong ethos focused on individual growth has been an integral part of McQuillan Companies for over 125 years.

View our current vacancies
History of McQuillan

It takes vision, ambition and innovation to look at an empty field and see a quarry. That’s exactly what John McQuillan did when he discovered limestone on his farm on the outskirts of 19th-century Belfast.

Our story starts in quarrying, but we’ve embraced new opportunities in civil engineering, demolition, hazardous and non-hazardous waste management, outdoor cleaning and environmental testing. Adopting emerging technologies. Adapting to the changing needs of our customers, industries and communities. Leading positive change for more than a century.

Find out more about us
Community at McQuillan

We take pride in giving back to the communities that have been instrumental in our growth for over a century. Through active involvement in initiatives that reflect our company values, we are committed to making a positive impact on the lives of those who have supported us.

By engaging with local communities that are deeply rooted in our heritage, we not only honour our past but also help build a stronger future. Our efforts to contribute to these communities reflect our belief in the importance of fostering strong, meaningful connections with the people and places that surround us.

Future focused

We’re proud of our past but focused on the future. We embrace the enterprising spirit of our heritage and channel it into new directions. Being future-focused means evolving our environment, staying open to change and securing a sustainable future.

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Latest news

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Final Episode of Our Sustainability Series: Supporting Our People
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In the final episode of our Sustainability Series, “Supporting Our People,” we shine a spotlight on the programmes, values, and culture that help our teams thrive. From wellbeing support and training opportunities to recognition and inclusion, this episode captures our ongoing commitment to investing in our people and building a workplace where everyone can succeed.