Construction Companies in Down

Founded in 1966 we remain a family business and are the principal company in the Ladyhill Holdings Group. Our name - Antrim Construction Company Limited, is often simply shortened to ACC.

Our original Head Office was located beside the group's quarry business in the townland of Ladyhill, just outside Antrim. We now reside in our impressive new office block in Holywood, Co. Down - 'Ladyhill House'. This move followed the acquisition in 1994 of the Holywood based, John Mowlem Homes NI Division.

A. Robinson & Son, based in County Down, is a long-established natural-stone specialist supplying granite, quartz and marble for construction, restoration and design projects.

With advanced processing facilities and generations of expertise, they deliver precision-made cladding, paving and work surfaces backed by a reputation for quality and reliability.

We strive to be recognised as a leading specialist marine civil engineering contractor operating throughout the UK and Ireland.

We adhere to our Core Values of Respect, Integrity, Ethics, Quality, Health & Safety, Environmental Management and Accountability.

We will strive to achieve our Vision for the company by the management and continuous improvement of our Team.

We place a heavy emphasis on the Training & retention of experienced and highly skilled employees who are proud of their work and loyal to our company's objectives.

Based in Dundalk & Newry, Bayview specialises in large-scale energy efficiency and retrofit projects across the island of Ireland.

With in-house teams and full project-management capability, they service a 24/7 portfolio of over 50,000 properties and hold all major accreditations in insulation, renewables, heating systems and health & safety.

Bridgepoint Road Markings Ltd, established in 1985 and operating across Ireland, specialises in road-marking, line-removal, traffic-system installation and related surface treatments.

The company holds ISO 9001, ISO 14001 and OHSAS 18001 certifications, and all works are carried out under relevant Highways Sector Schemes 7 & 8.

Based in Rathfriland, County Down, Calmor Properties is a leading NI-based developer specialising in new-build housing, commercial developments, conversions and refurbishments.

Their in-house team of qualified trades spans all aspects of construction, using locally sourced, high-quality materials and delivering every project to a high specification.

CES Quarry Products Ltd, headquartered in Saintfield, Co Down, is a family-owned materials-supplier set up in 1948.

They provide a wide range of quarry and recycled stone, ready-mix and mini-mix concrete, blocks, bricks, bituminous surfacing products and more, serving construction and landscaping projects across Northern Ireland and beyond, supporing both trade and public sectors.

Based in Belfast, Northern Ireland, Conlon’s Construction arm delivers commercial, residential, social-housing and refurbishment projects across the UK and Ireland.

Their full-service capability spans new builds, conversions and fit-outs, supporting clients from design concept through to handover.

DAWSON-WAM are specialist civil engineering and piling contractors with operations throughout the UK and Ireland. The company undertakes both small and large scale civil engineering and piling projects for residential, commercial and public authorities with budgets ranging from £100k to £20M.

The company was founded in 1971 and has grown to an organisation with an annual turnover in the region of £50M

DCM Contracts (NI) Limited, founded in 2016 and based in Banbridge, is a construction management firm active across residential, commercial, healthcare and education sectors.

With a hands-on leadership team and a focus on safety, quality and strong client relationships, the company brings together diverse field experience into project delivery.

Based in Newry, Northern Ireland, DCL specialises in main contracting and construction management across the educational, healthcare, commercial, conservation and residential sectors.

The company holds ISO 9001, ISO 14001 and OHSAS 18001 certifications and has built a reputation for high quality work delivered on time and on budget.

For over 90 Years, Dunlop Homes has been committed to creating homes and buildings that endure, and we take immense pride in providing generations of outstanding design, construction, and customer service.

Our lasting success can be attributed to a steadfast dedication to innovation and upholding the highest industry standards. Our pledge remains the same through it all - a commitment to quality, sustainability, and unwavering customer satisfaction.

Felix O’Hare & Co Ltd is dedicated to employing the best people to ensure we retain the knowledge and expertise required so that we continue to deliver the high quality service our clients expect. We continually encourage and support our employees through learning and development, continuous professional development and industry professional organisations.

We want our employees to thrive and achieve their highest potential. We are passionate about creating an environment that provides opportunities for stimulating and fulfilling careers.

Fraser Homes, one of Northern Ireland’s best known house builders, has an extensive portfolio of sites in greater Belfast, Saintfield, Carryduff, Newtownards, and Larne.

Your placement year really matters especially when you are making your first career move. Fraser Homes gives you the chance to make an impact and make your placement really count.

You will quickly become a respected member of the team and develop rounded business skills that will serve you regardless of where your future takes you.

Ganson Building & Civil Engineering Ltd. is one of Ireland’s most progressive building and civil engineering contractors.  

We undertake projects throughout Ireland and the UK with offices in Dublin and Castlewellan in Co. Down and are a leading contractor in all sectors of both Public and Private works.

Gibson Bros Ltd, based in Banbridge, Co Down, is a family-owned company with over 70 years’ experience. It operates across quarrying (high PSV aggregates for civil engineering and road construction), manufacturing concrete products (blocks and other precast elements), surfacing (residential and commercial) and plant hire.

The business combines long-standing traditional values with modern equipment and systems to provide a broad range of materials and capability for construction-sector clients.

Providing first class workmanship and delivering high quality construction projects across a range of Public and Private Sectors.

Founded in Glasdrumman over 35 years ago by Liam Murphy and William Smith, Glasgiven Contracts remains a family run business with its Head Offices based in the Mountains of Mourne. In the last decade we have expanded into Southern Ireland, with offices in Bracetown Business Park Clonee, Dublin.

The GRAHAM Academy provides world-class training and development programmes and is committed to developing the next generation of industry professionals. Our diverse and challenging working environments allow our students to thrive and achieve professional success.

The Academy enables our talented colleagues to learn new skills and gain nationally recognised qualifications. We provide the ongoing support necessary to lay the foundations for a dynamic career with excellent progression opportunities.

Founded in 2001 by Robert Hamilton and Ian Bogie, Hamilton Bogie is the result of many years’ experience in the piling industry.

We aim to provide a fast and responsive mini piling service across Ireland, and our dedicated team has the training and expertise required to tackle almost any job.

As an established Principal Contractor, founded in 1948, Hugh J O’Boyle Ltd has an excellent reputation in completing high quality construction projects for a wide range of public & private clients, throughout the UK & Ireland.  We have extensive experience in the housing, industrial, education, health, historical buildings and community sectors. We have successfully completed schemes ranging in value from £50,000 to £11.5m.

Based in Downpatrick, Co Down our premises include spacious offices, stores and joinery workshops.

We believe quality and the success of a company rests with the people, we have a very loyal and experienced team who have the appropriate training and skills to successfully deliver high quality projects. We own and maintain an extensive fleet of plant and equipment.

Based in Silverbridge near Newry, James Oliver Hearty & Sons is a family‑owned construction and engineering specialist founded in 1961.

The company offers multidisciplinary capability across civil engineering, marine, utilities, building and heritage‑conservation projects, working with both public and private sector clients.

Based in Banbridge, Northern Ireland, John Doherty Contracts (NI) Ltd specialises in building and joinery projects for commercial and residential clients.

Established in 1999, the company emphasises delivering work within timeframe and budget while maintaining high standards of craftsmanship and client service.

Based in Katesbridge, County Down, John McAleenan Builders is a family‑run construction contractor serving both domestic and commercial clients across Northern Ireland.

The business offers a broad range of services including stonework, re‑pointing and lime plastering, roofing, joinery, window repair, and damp/wood‑rot treatment.

Based in Dundrum, County Down, Joseph McClune  &  Son Ltd is a family‑run construction and joinery business.

They offer bespoke joinery, roofing, building maintenance and renovation for both domestic and commercial‑sector clients.

We're a local company, founded in 2014, so you get the personal service you'd expect from people as passionate about your home and location as you are. That passion reveals itself in our attention to detail - the little touches, personal customer care and considered planning that makes all the difference. That 'Kap experience' is something you'll hear our buyers mention again and again. And there are plenty of them to ask.

We have a greater understanding of our customers, but also of the people who live in the areas where we build. We pay special attention to their lives and daily routine, trying wherever possible to integrate, add value and make a genuine difference. It means that when people move into our freshly built homes, they're already part of the local community.

Kelly Brothers is a family owned Building Contracting business operating for over 57 years.  Specialising in commercial, education, leisure and construction of social and affordable homes, both in the North, and South of Ireland.

We proactively engage in efficient, low carbon, reduced water consumption, low waste, increased recycling, and respect for biodiversity methods of construction on a daily basis. This contributes to our research and development aspects of modern day construction and continually improves our technical expertise to deal with environmental and social aspects of contracts.

Based in Castlewellan, Northern Ireland and established in 1973, KMB delivers construction services across sectors including commercial, healthcare, education, leisure and residential.

The firm emphasises quality, professionalism and long‑term client relationships, supported by a team with deep sector experience.

Killowen Contracts Ltd is a family‑owned building, civil‑engineering and fit‑out contractor, active across Northern Ireland and the Republic of Ireland.

Founded in 1974, the firm has grown to deliver multi‑million‑pound projects in sectors including commercial, healthcare, education, residential and facilities management.

Director‑level involvement, a strong project team and a focus on value in time, cost and quality underpin their reputation for high standards and long‑term client relationships.

Leo Matheson Ltd, founded in 1985 and based in Castlewellan, County Down, is a general building contractor operating throughout Northern Ireland.

The company serves both public‑ and private‑sector clients.

Based in Lisburn, Lewis Tower Crane Services Ltd specialises in tower‑crane hire, erection, dismantling, maintenance and inspection services across the UK and Ireland.

With over 40 years of experience in supplying and operating high‑quality crane plant sourced from leading manufacturers, the company supports major construction projects as well as smaller contractors.

Based in Hillsborough, County Down, Lilburn Contracts is a general building contractor providing construction services across Northern Ireland.

The firm serves both domestic and commercial clients from its local base.

Based in Belfast and established with over 40 years of experience, LM Services (NI) Ltd is a mechanical and electrical engineering firm operating across Northern Ireland, the Republic of Ireland and Great Britain.

The company provides multidisciplinary M&E and building‑services solutions for commercial, industrial, education, healthcare, transport and renewables sectors, including installations, maintenance and reactive works at a 24/365 level.

First we build relationships. Then we build homes.

We take immense pride in our commitment to sustainability and the environment, which is reflected in our energy-efficient homes.

Our homes are designed with superior quality and functionality as standard.

Mc Parland Brothers Ltd is a long-established, family-run building contractor working across Northern Ireland and the Republic of Ireland.

With over four decades of experience, the company delivers projects in private and social housing, education, commercial and industrial construction. Their work is underpinned by a focus on regulatory compliance, health and safety, and recognised building standards across all sectors they operate in.

Based in Warrenpoint, County Down, MR Mechanical Services Ltd is a family‑run mechanical services contractor specialising in plumbing, heating and ventilation for commercial, healthcare and education sectors.

The company has in‑house capability for design, planning and installation and is registered as a plumbing, heat and air‑conditioning installer.

Murphy Group is a specialist engineering and construction company operating internationally.

Since 1968 in Ireland, the firm has delivered infrastructure across sectors such as energy, water, transport and utilities. It offers services spanning design, construction, tunnelling, fabrication and ground engineering.

Northland Developments is a residential property developer established in 1995 and primarily active in the North Down area.

The company focuses on delivering new-build housing developments ranging from starter homes to larger family properties, and has received industry recognition for the quality and design of its schemes.

Nuline Utilities is a civil‑engineering contractor founded in 2006 and based in County Down.

They specialise in pipeline, utilities and building projects. Their work spans water, gas, and infrastructure delivery for major utilities and commercial clients.

Unlock a world of opportunity at OHMG Careers, where excellence intertwines with new beginnings.

Dive into our array of fulfilling roles in construction, civil engineering and interior fit-out. Join a dynamic team passionately committed to shaping the future landscape of the industry.

Your journey to success begins here.

Rodgers Construction Ltd is a builder and property developer based in Newcastle, County Down.

Founded in 2011, the company works on residential construction and development, leveraging over 20 years of design and construction experience within the leadership team.

Sheaney is a specialist in marine, civil and infrastructure engineering.

They provide complex lifting and crane services, project management, design and construction support for heavy civil works.

At SSE Airtricity we provide cleaner, renewable energy†, natural gas and essential services for homes and businesses across Ireland. We employ around 1,000 people directly on the island of Ireland.

We are an equal opportunity employer. We encourage diversity and are committed to creating an inclusive environment for all employees.

"People are at the centre of our business and I’m really proud that at SSE we’re continually stepping up to ensure we’re doing our very best to support every individual…"

`Nikki Flanders - Managing Director, SSE Energy Customer Solutions

Water Solutions Ireland is an engineering contractor specialising in the design, construction and commissioning of water and wastewater treatment plants across both the public and private sectors.

Its team brings over eighty years of combined experience in Process/MEICA (Mechanical, Electrical, Instrumentation, Control & Automation) projects, within the water industry.

William Rogers Construction (WRC) is a construction firm founded in 1975 by William Rogers.

Over decades it has grown from joinery, into a full-service contractor offering design‑and‑build, civil engineering, and project management.

Under second-generation leadership, the company undertakes projects across the public and private sectors, including housing, education, healthcare, and community buildings.