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Dermot Collier, MD, acol ltd

acol Managing Director, Dermot Collier is one of the Ireland's leading restoration and conservation experts. Dermot has over 30 years of experience across a wide range of restoration fields. His expertise is particularly recognised in brick & stone pointing and cleaning, structural repair of historical buildings and structures, and the repair and cleaning of brick, stone and rendered facades and structures.

Dermot is also passionate about maintaining and developing traditional building crafts. He is a leading advocate for the traditional skills of stone-masonry, brick pointing, traditional re-pointing techniques using lime mortar mixes, roof re-slating, window restoration and traditional metalwork.

Consequently, Dermot is a popular keynote speaker at traditional Building Skills and Conservation Best Practice seminars. He is also a guest college lecturer on Conservation & Traditional Building Skills and Conservation Project Management.

  • Member of the Executive Board of the Construction Industry Federation
  • Chairman, North Eastern Branch of Construction Industry Federation
  • Member of Irish Georgian Society
  • Member of Lime Forum of Ireland
  • Training facilitator, Georgian Society of Ireland
  • Workshop facilitator, Dublin Civic Trust
  • Guest lecturer, Trinity College Dublin

Dermot's 30 years pf experience as a company director has seen him project manage the delivery of projects of all sizes.

Contact Dermot

Tel: 018250171   Email:

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Our Teams

acol is committed to maintaining and improving the standards and consistency of traditional building skills in the Irish construction industry. To this end, we employ Ireland’s leading traditional craftspeople across all our restoration teams.

Furthermore, acol is also also committed to developing the necessary traditional skills in the next generation of craftspeople. We provide comprehensive training to ensure that our young developing craftspeople have the traditional skills required to maintain the fabric of Ireland’s historic building stock for future generations.

Finally, acol works with a number of representative bodies (Such as The Construction Industry Federation, Building Limes Form Ireland, The Irish Georgian Society, Dublin Civic Trust and The Royal Institute of the Architects of Ireland) to give construction professionals such as architects, engineers direct access to our sites to see traditional skills in operation. acol achieves this by organising Continuous Professional Development (CPD) workshops on our sites when possible.