Abbey Stream Energy
BER assessorJames Fitzgerald
Based in Cork
Brian O'Sullivan
County Cork
SEAI keeps these registers separately. Denis O'Sullivan & Associates Consulting Engineers appears on more than one.
SEAI Registered BER Assessor
One registered BER assessor works here: Colm Cronin (Cork)
Matched on registered company name plus a shared phone number or company email domain. Each register is scraped and published separately, so where the evidence is thin a business may appear more than once on this site.
No specific trades listed on the SEAI register for this business.
Answer a few questions about the house and see which SEAI grants it qualifies for, so you know what you are asking Denis O'Sullivan & Associates Consulting Engineers to quote against.
Denis O'Sullivan & Associates Consulting Engineers appears on the SEAI national BER assessor register . Details on this page were last checked against that register on 7 September 2026. Registration status can change, so confirm directly with SEAI before signing anything.
James Fitzgerald
Based in Cork
Based in Cork
Based in Cork
Based in Cork