Commercial & Residential
Projects Specialists

RJ O’Brien Building Contractors Ltd, has over 50 years’ experience in completing commercial and residential projects. We have a full team of in-house professional tradespeople including, carpenters, decorators, electricians, plumbers and specialty trades, to always ensure the highest standard of quality of work is carried out.


A Proud Family Business

RJ O’Brien Building Contractors was founded by the late Ray O’Brien in 1969 (trading as, Ray O’Brien Building Contractors). We are a proud family business based in County Cork, now run by Ray’s son, John O’Brien.
We are a small-medium sized general building contracting company. While much of our business is in the Cork and Munster area we operate a nationwide 24/7 service.

We specialise in project management and building maintenance in all trades from carpentry, decorating, interior design, roofing, electrics and plumbing to specialty trades as required.
Our work is predominantly based on commercial building fit outs, building maintenance and residential renovations and extensions but we have vast experience in other areas ranging from new builds to conservation works.


Dedicated & Loyal Team

We have a strong dedicated and loyal team that has been a major contribution to the success of our business over the years. We have the expertise, resources and personnel to undertake projects from small to large scale.

Our reputation is built on the highest level of quality and our commitment to provide industry leading building services to our customers. Our ability to meet challenges and deliver projects on time and within budget is reflected in our high levels of repeat business and our long-term client relationships.
For all enquires contact our office at 021 2061796 or email info@rjobrienbc.ie


Request a Consultation

We are now offering interior design consultations via phone or video call from the comfort of your own home! Our team of dedicated interior designers will help you create and style a space that is truly unique to you by listening to what you want and need from your home.