Welcome To McDermott & Trearty Construction

Broad Vision, Sincere Service, Exceptional Results
Our goal then and now is to deliver quality, on-time projects.
Where We Build Your Vision

Here at MDT construction, we pride ourselves in helping you make your vision a reality.

We are a pioneering and conscientious construction company based in the North-west of Ireland.

Understanding the importance of working together as a
team and collaborating with the client, we aim to construct projects that strengthen local communities and the nation’s infrastructure as a whole.

Our Specialization

Here at MDT, we specialize in a wide range of works. We have clients in both the public and private sectors.

  • Construction
  • External Works
  • Internal Works
  • Landscaping
  • Site Planning
  • Refurbishments


Some of our clients

Health Service Executive
Regional Cultural Centre
Institute of Technology, Sligo
South Dublin County Council
Department of Education
Sligo Heritage & Genealogy Centre


Call Us Today
074 91 03888


6A Beechwood Ave, Ballyboe Glencar, Letterkenny, Co. Donegal, Ireland

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