Victoria Square Belfast

Your sight is your most precious sense & deserves the highest standards of care.

Gahan and Long Ltd provide a wide range of archaeological services to industries and organisations across Northern Ireland. Our services include:

  • Pre-planning evaluation
  • Archaeological monitoring
  • Archaeological programme of works and impact assessments
  • Heritage and industrial heritage assessment
  • Site assessment
  • Small and large scale excavation
  • Project management
  • Geophysical survey
  • Building surveys utilising 3-D laser scanning
  • Artefact analysis

Find below further details on the industry sectors we cater to.


Gahan and Long have over 10 years' experience working in the renewables sector including wind farms, solar farms and bio-digesters. We are able to offer a complete package of works to address your archaeological needs including impact assessment, planning appeals, planning condition discharge and on-site monitoring and compliance.


Whether you are building a single dwelling or multi home complex, we can guide you through the archaeological process from start to finish. Our pro-active approach will ensure that any archaeological issues will not impact upon your construction programme and will minimise any potential financial impacts.


Gahan and Long have extensive experience in providing archaeological services on large scale infrastructure projects throughout Ireland. The breadth of our experience extends across major road schemes, power connections and pipeline installations.

Public Sector

Schools, hospitals, parks, and public realms. Gahan and Long have the skills and knowledge to address all archaeological components of small and large scale public sector projects. This includes expert input within design teams, assessment and analysis through the planning process and mitigation and compliance during the construction phase.


Gahan and Long have provided archaeological assistance to numerous quarry and mineral extraction projects. We have operated at all stages of projects from feasibility studies, through planning applications, planning condition discharge and on-site monitoring and compliance.

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Or Call us On
(028) 9020 2001