Building Ireland from the Ground Up

O’Hagan is a family-run civil engineering and groundworks company with over 50 years of proven expertise. From large-scale developments to specialist sports fields, we deliver projects on time, every time.

About Us

O’Hagan is a family-run civil engineering and groundworks company with over 50 years of proven experience across Ireland, Northern Ireland, and Scotland. As a generational business, we combine traditional values of reliability and hard work with modern techniques that keep projects moving efficiently and safely.

Our directors remain actively involved on site, ensuring every project benefits from hands-on leadership, attention to detail, and an uncompromising commitment to deadlines. Over the decades, we have built strong partnerships with developers, main contractors, councils, and sports clubs by consistently delivering projects to the highest standard.

Our expertise spans everything from site preparation and drainage to roadworks, landscaping, and sports field construction. Whether the project is a housing development, a commercial site, or a community pitch, our experience guarantees results that last.

At O’Hagan, our reputation is built on trust, consistency, and the confidence our clients place in us to deliver projects that stand the test of time.

Services

a picture of drainage covered by stones
a tall building with a bunch of crosses on it

Residental & Commercial Contracting

From new builds to renovations, we deliver reliable construction services that stand the test of time. Whether it’s residential housing or large-scale commercial projects, our team brings hands-on expertise, efficient project management, and a commitment to safety on every site.

Site Preparation & Groundworks

Every successful build starts with the right groundwork. O’Hagan provides full site preparation, excavation, and enabling works to ensure your project begins on solid foundations. Our experienced team delivers with precision and efficiency, keeping projects moving on schedule from day one.

a picture of a digger bucket and some stones
a picture of drainage covered by stones
a tall building with a bunch of crosses on it

Drainage & Utilities

From stormwater management to underground utilities, we design and install reliable drainage systems that protect developments long into the future. With decades of experience across Ireland, we know how to manage complex site conditions while ensuring compliance with the highest safety standards.

a tractor is parked in the grass near a tree

Foundations & Concrete Works

Strong, lasting structures depend on expertly installed foundations. O’Hagan specialises in concrete works of all scales, from individual house foundations to large commercial developments, with accuracy that ensures durability and long-term performance.

concrete foundations with rebar sticking up
a tractor is parked in the grass near a tree
some levelled soil with a digger and dozer in distance

Landscaping & Finishing

A project isn’t complete until every detail is finished to perfection. O’Hagan provides professional landscaping and finishing services, ensuring developments are not only functional but visually impressive and ready for use.

Sports Field Construction

From local GAA clubs to professional sports organisations, O’Hagan has built a trusted reputation for delivering specialist sports fields. We understand the technical requirements for drainage, durability, and player performance, ensuring every pitch is built to the highest standard.

a freshly seeded football pitch
a tractor is parked in the grass near a tree
a picture of an excavator

Plant Hire

O’Hagan offers a modern fleet of plant machinery available for hire, including excavators, dump trucks, rollers, and more. All equipment is maintained to the highest standard and operated by skilled professionals, ensuring efficiency, safety, and reliability on every site.

Clients & Projects

Abbey Street, Dublin City Centre

Main Contractor: Bennett

  • Excavation and placement of water wells to manage groundwater

  • Basement and ground floor excavation to sub-structure level

  • Foundation excavation

  • Excavation of attenuation tank along Strand Street

  • Breaking piles to pile cap level

  • Concrete placement to sub-structure level

  • Installation of drainage, sewers, and service ducting

Louth GAA Stadium, Dundalk

Role: Main Contractor

  • Enabling works for new county grounds

  • Diversion of 1,000mm storm drain

  • Site raised by 2m using 60,000m³ imported Type 1 material

  • Retaining wall construction along live stream

  • Diversion of ESB high-voltage overhead services

  • Installation of new palisade fencing to site perimeter

  • Construction of new access road

Cherry Orchard, Dublin

Main Contractor: Adston

  • Initial site clearance and bulk excavation

  • Setting out and excavation for foundations across multiple units

  • Installation of drainage networks, including foul and storm systems

  • Service ducting for utilities (water, gas, power, and comms)

  • Sub-structure concrete works to foundation level

  • Construction of access roads, footpaths, and external hardstanding areas

  • Coordination with main contractor to ensure phased handover of completed units

Scoil Uí Mhuirí – Dunleer

Main Contractor: Ganson

  • Site clearance and reduced-level dig for new school footprint

  • Excavation and preparation for foundations and service trenches

  • Installation of underground services (water, sewer, power, data)

  • Attenuation and drainage systems to manage stormwater

  • Bulk earthworks to create level playing field platform

  • Installation of pitch drainage system and sand layer for sports surface

  • Construction of perimeter footpaths and access routes

  • Final grading, topsoiling, and seeding of football field

Other Projects

  • Moorehill Nursing Home (Main Contractor: Ganson): Bulk excavation, foundation works, and diversion of services for new nursing home.

  • Standard Brands, Kilsarn, Co. Louth (Main Contractor): Groundworks and concrete yards for new warehouse development.

  • Glyde Rangers GFC (Main Contractor): Construction of football field, training area, and public walkway with lighting ducting.

  • Glen Emmetts GFC (Main Contractor): Refurbishment of training field including new drainage, regrading, and reseeding.

  • Dundalk North Business Park (Main Contractor: Adston): Paths, watermain and pumping sewer diversions for new retail park.

  • Aldi DRS (Main Contractor: Adston): Excavations, concrete slabs, paving, and service diversions for new deposit & return units.

  • WaterWipes, Drogheda (Main Contractor: Adston): Ongoing maintenance and entrance realignment within live factory.

  • Ballygorman: Civil works to new yards.

Contact

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