Unrivalled Culture.

Welcome to SJG Group

Excellence is everything to us, from our craftsmanship and the premium materials we use to the service we provide. We believe it's what sets us apart. It's what makes us Specialist.

SJG is a family-owned and family-run organisation. This means several things. People are at the core of its operation, not technology. Values such as fairness, transparency, and honesty are engrained in the organisation, from the shop floor to the boardroom.

Ethical considerations also underpin the Group's Corporate Social Responsibility and community commitments. SJG is a driven, ambitious organisation with a clear focus on both excellence and innovation.

Divisions & Sectors

We are at heart a bespoke business, and we are organised accordingly – with divisions offering expert solutions in multiple areas.

Learn more

The division that began it all, joinery remains a core area of expertise, transforming interiors – and constantly reshaping expectations.

Here, we push creative and technical boundaries, and redefine possibilities in bespoke interior glass. If it can be imagined, it can be made.

Combining groundbreaking aesthetics with precision fabrication and fitting, this division handles everything from prototyping to finishing.

From ferries and cargo ships to cruise liners and superyachts, this division delivers complete design, fit-out and refurbishment solutions.

Working independently or in conjunction with other divisions, this unit delivers speed, precision and quality in even the most complex projects.

This is where we train apprentices to recognised professional standards, enhance existing skills across the Group and explore innovation.

Project Sectors

  • Commercial Interiors
  • Workplace
  • Retail
  • Hotel & Leisure Facilities
  • Cruise Ship and Super Yacht Interiors
  • Prime Residential
  • Super Luxury Private Residential
  • Laboratories & Clean Rooms
  • Public Buildings
  • Sports stadia
  • Major Projects
  • Airports
  • University, Schools & Colleges
  • Hospitals and Medical Research Facilities

Project Sectors

  • Bespoke Interior Architecture
  • Fitted Furniture
  • Joinery
  • Glass
  • Architectural Metalwork
  • Installations

Our History

Established in 1988 by John B O'Hagan, Specialist Joinery Group has grown from a small team of 10 people operating out of a 5,000 sq ft workshop to one of Ireland's premiere manufacturers of bespoke joinery and fitted furniture.


Established by John Bosco O'Hagan operating from 15,000 sq. ft. premises.


Purchase first computer.

Early 1990s

We grow fast, with projects for clients such as Murphy’s Irish Brewery, Heineken, Northern Bank and British Midland.


Computer Aided Design Department Introduced.


Computer Aided Design Department Introduced.


Specialist HQ, a new purpose-built production facilities and offices is established.


Ciaran joins John in the business.


Our assembly teams grow: we add further production equipment and increase production space. This significantly elevates our delivery capability and our portfolio develops considerably.


First Multi Million Pound Project Delivered. Jumeriah Beach Resort Dubai.


Sean Joins the business.


Dermot joins the business. Introduction of renewable heat.


Focus operations on London Market.


Deliver our first project for GSK, at their Belgium Plan.


Deliver our first BIM Project at Dublin Institute of Technology.


Completion of Enniskillen Hospital, a flagship major project.


We invest £3 million in our production capacity and increase manufacturing space to over 80,000 sq. ft.


Deliver Guildhall School of Music. Establish The Specialist Academy.


Open London Office


Solar Panelling Installed in Factory. Digital Innovation Project Launched to introduce Automation to Manufacturing Environment.


Open newly enhanced facilities totally 145,000 ft² .


On our 30th Anniversary (3rd May 2018) we open our new factory extension with enhanced facilities totalling 145,000 ft². This includes technical innovations on the shop floor, upgraded office facilities, a 200-seater canteen, company gym and dedicated employee wellbeing suite.


Raise £172,800 for Charity to mark anniversary year.


Additional Plant Purchased.

Our Qualities

Our qualities set us apart. Here's what you can expect from us.

Beyond innovation

We work with technology, but our solution is partnership. That's what we deliver. We work with you to help provide a solution that's rooted in excellence, from initial consultation through to delivery. And we go further in terms of commitment, quality and support.

We're about simplicity – and complexity

We're here to solve a problem for your organisation. That problem may appear complex, presenting competing technical, logistical and personnel issues, but our solution will deliver a reassuringly simple way of setting free the power within your organisation.


Like a perfectly executed dovetail joint, our logistics and project management are locked to our sector-leading creative skills and technical execution. It's a system designed from the ground up to deliver the most efficient service and solution for you.


Our team is one of the most experienced in the market, with the proven technical understanding, commitment and insight to deliver. We're in the business of excellence. And the currency of that excellence is our expertise. It’s made us leaders. It will do the same for you.

Our Culture

  1. Values

    We are committed to the values of honesty, integrity, loyalty, trust & respect.

  2. A place for people

    We are inspired that our work improves the fabric of life and creates amazing spaces for people to live and work in.

  3. Innovation & collaboration

    Innovation, continuous improvement and excellence is our chosen culture.

  4. Challenge

    Our desire is to make the impossible, possible for our clients. This positive attitude sets us apart. The challenge inspires us and is a catalyst for innovation and provides valued opportunities to collaborate with others.

  5. Our vocation for client service

    Our people are passionate brand ambassadors who provide world class service.

  6. New realms of quality

    Renowned for quality in every aspect of our organisation, we continue this tradition by ongoing investment in learning and development. We are guardians of our craft. Our legacy is to inspire the next generation of specialists.

  7. We are family

    Family values are the foundations of our culture.

  8. Making a difference

    Our Family ethos inspires us to show concern for others. We measure our success by the difference we can make to the lives of others and the number of new jobs that are created by our group.

  9. Investment

    We see company investment & development as an investment in our future which provides us with a sense of security.

  10. Sustainability

    Operate the business, for the benefit of legacy and future generations of the Specialist family.

Our People

Leadership & Board Members

John B O'Hagan

Founder & Chair

Ciaran O'Hagan

Managing Director

Ciaran O'Hagan

Managing Director

John Bosco O'Hagan

Group Chairman & Founder

Martin Collins

Technical Director

Dermot O'Hagan

Sales Director

Sean O'Hagan

Contracts Director

Teresa O'Hagan

Director & Company Secretary

Karen Trainor


Coilin Campbell

Commercial Director

Paula McCloskey

Marketing Director

Laura Quinn

Financial Director

Declan McCallan

Technical Sales Manager

Paul Hamill

Feargal McMullan