Errigal Contracts

Errigal Contracts Ltd has carved a niche in the construction market in Ireland, the UK, and mainland Europe as a specialist contractor in partition systems, external façades, interior fit-outs, ceilings, and bespoke solutions.

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It is internationally respected for its unique ability to provide specialist fit-out and cladding services on construction projects of all types and sizes and in all locations.

Damien Treanor and Cormac McCloskey founded Errigal Contracts over 20 years ago. It has a dedicated manufacturing facility at its headquarters in Monaghan, with regional offices in London, Derry, Zurich, Amsterdam and more recently, Frankfurt.

Errigal Contracts
Errigal Contracts joint managing directors Cormac McCloskey and Damien Treanor.
Errigal Contracts
Capital Docks, Dublin, a development for John Sisk & Son.


Errigal has a £20m off-site manufacturing base at the 70-acre former Enkalon industrial estate in Co Antrim. Ongoing development at the site, continued growth in data centres in mainland Europe as well as targeted growth in off-site assembly will enable the contractor to take the opportunity to grow with its clients with plans to achieve an annual turnover of in excess of £300m over the next five years.

Errigal also invests in design and R&D, seeing these as two key areas that can drive success for the company and its clients. Its design department continues to grow, working with partners and clients to bring designs to life. Its highly skilled team, which includes in-house and site-based engineers and designers, is equipped with the latest 3D software.

Errigal also works closely with manufacturers to continually test new products, equipment, and technology to develop new solutions. Continued innovation led to the opening of Errigal’s dedicated Research & Development (R&D) Centre that provides bespoke manufacturing solutions.

Errigal Management Team

Joint managing director Damien Treanor has over 30 years of experience in the construction industry in the UK, Ireland and internationally. Treanor is dedicated to people, community and industry development and is the driving force behind ‘The Errigal Way’. This ethos is reflected in the team at Errigal, who are committed to doing the very best, however big or small the challenge might be.

Treanor describes the company’s approach to project delivery. “We do things the Errigal way. This ethos is at the core of our company culture. It’s how we think and how we work. A simple philosophy that has been years in the making and allows us to thrive as people and prosper. We are focused on the experience we give our clients, our suppliers, and our people. Delivering quality and completing projects within timelines is a given. We are committed to our people, our clients and our industry and will continue to invest into the future to ensure that we all grow through a culture of care, support, and encouragement.”

Joint Managing Director Cormac McCloskey is widely known as the operational powerhouse of Errigal. He has steered many of the company’s successful projects with a can-do approach while building trusted long-term partnerships. Regularly called upon by some of the world’s leading construction players, McCloskey has led the Errigal team to complete some of the most complex construction projects nationally and internationally.

McCloskey describes what is at the core of Errigal’s success over the years. “At Errigal, we care deeply about our people and our industry. Our success is founded on years of experience and the strength of our dedicated people and communities in Ireland, the UK and Europe. A founding principle of Errigal is the recognition that by continuing to invest in ambitious young people pursuing a trade in the industry and allowing them to grow and develop, we will grow and become strong.”

Errigal Projects

Recent and current Irish projects include Capital Docks for John Sisk & Son; Andrews Lane Hotel for Duggan Brothers; Townsend Street development for John Paul Construction; Dub 08 data centre for PJ Hegarty Construction; and Dub 02 and Dub 12 data centres with Winthrop.

Recent and current UK projects include 22 Bishops Gate, 1 Palace Street London, Battersea Power Station, and Victoria Square, Woking.

Errigal Contracts Limited

ADDRESS: Ardginny Killybrone Co Monaghan.

PHONE: 047 70709


LINKEDIN: Errigal Contracts Ltd

TWITTER: @ErrigalGroup

KEY EXECUTIVES: Damien Treanor, Joint Managing Director; Cormac McCloskey, Joint Managing Director.

KEY ACTIVITIES: Specialist Fit-Out and Cladding Contracting.

YEAR END: 31/12/2020