Building Energy Rating Assessors Ireland are based in Co. Mayo. We are SEI (Sustainable Energy Ireland) registered Assessors and carry out Building Energy Rating Assessments nationwide on new and existing dwellings.

Building Energy Rating Assessors Ireland is a member company of the BER Assessors Association of Ireland

The Company was founded in 2007 by John O'Sullivan. John is an Architectural Technologist with over 16 years experience in the Irish Construction Industry. As Building Energy Rating Assessors Ireland are not affiliated to any company selling any products we offer totally independent and holistic advice for your project.

We offer a fast and efficient service and can where required make recommendations to improve the energy rating and carbon emissions from your home. If you require an Energy Rating Certificate on your home please do not hesitate to contact us at for a quote.