What We Do
At O’Neill O’Reilly & Associates, we provide trusted, professional consulting engineering services across Ireland, helping homeowners, buyers and developers make confident, informed decisions.
Our team of Registered Engineers and Building Consultants delivers expert insight, practical advice and detailed technical reporting for every stage of your property journey — from purchase to design and construction.
Our Core Services
Pre-Purchase Surveys & Building Inspections
We assess houses and apartments before purchase, identifying defects, structural issues and maintenance concerns so you can make an informed decision.
Engineer’s Reports & Structural Assessments
We prepare clear engineering reports for mortgages, planning, insurance claims and disputes, with practical recommendations where defects are found.
Architectural Design & Planning
We provide architectural design and planning services for residential and commercial projects, including retention and compliance support.
Structural Engineering Design
We design safe, efficient structural solutions for new builds, extensions and renovations, working closely with clients and builders.
Expert Advice & Consultancy
We offer clear, independent advice for buyers, homeowners and developers dealing with property or building issues.
Why Choose Us ?
Registered Engineers
All reports and designs are prepared by qualified Registered Engineers with Irish experience and accreditation.
Detailed, easy-to-understand reports
We deliver clear, concise reports that explain the findings and options in plain language.
Local expertise
We understand property, planning and construction across Ireland.
Personal service
You’ll deal directly with experienced professionals who take the time to listen and deliver the right solution.
Meet The Team
Claire O'Neill
Managing Director
Registered Engineer, IEI
Claire brings over 26 years of leadership and engineering expertise to her role as Managing Director. As a long term member of Engineers Ireland, she is known for her strategic vision, attention to detail, and commitment to delivering the highest standards in engineering consultancy. Claire plays a key role in client engagement, project oversight, and guiding the overall direction of the company.
Caoláinn O'Reilly
Director
As Director, Caoláinn combines hands-on engineering knowledge with a forward-thinking approach to problem-solving. Caoláinn is deeply involved in project coordination, structural assessments, and ensuring efficient, client-focused outcomes.
Contact us
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