Who We Are

Building Confidence Through

Fabrication Excellence

Hayes Mechanical & Engineering is a specialist mechanical pipework and structural steel contractor, delivering complex projects across Ireland, the United Kingdom and Europe.

Supported by our in-house digital engineering and BIM team, we provide fully coordinated solutions from design development and fabrication through to installation.

Operating from our purpose-built fabrication facilities in Co. Mayo, featuring dedicated carbon steel and fully segregated stainless-steel workshops equipped with modern fabrication technology, we combine technical expertise, quality, traceability and dependable delivery to support some of the most technically demanding projects across the life sciences, data centre, healthcare, water and wastewater, and industrial sectors.

🏭 In-house Design & Fabrication
⚙️ Mechanical Pipework
🏗️ Structural Steel
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1
Mechanical Engineering
From HVAC system design and mechanical engineering coordination to full MEP specification, our team delivers efficient, compliant mechanical solutions for commercial, industrial, and infrastructure projects.…
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Hayes Mechanical Site
2
Structural Engineering
In-house fabrication and installation of structural steel solutions, including structural frames, modular frames, access platforms, bridges, support steel and bespoke fabricated assemblies. Manufactured in our…
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Precision, Compliance, and a Team You Can Rely On

Why Clients Choose Hayes

In-House Fabrication

Purpose-built carbon steel and fully segregated stainless-steel workshops equipped with modern fabrication technology provide complete control over quality, programme and delivery.

Digital Engineering & BIM

Our in-house BIM team coordinates projects from the earliest stages, improving buildability, reducing clashes and supporting efficient fabrication and installation.

Quality Without Compromise

Quality is embedded throughout every stage of delivery, supported by material traceability, documented inspection processes and experienced fabrication and installation teams.

European Delivery Capability

With established operations in Ireland, the United Kingdom and Germany, we support clients delivering complex projects across multiple European markets.

Sectors We Serve

Data Centres
High-spec mechanical pipework, structural steel, and building services for critical infrastructure. Proven delivery for hyperscale operators across Ireland.
Healthcare
Compliant mechanical and building services for hospital and clinical environments — including CHW, LPHW, plumbing, drainage, and ventilation systems.
Commercial
Full mechanical and structural packages for commercial developments, from office fit-out to large-scale new-build commercial projects.
Office Developments
HVAC, building services, and structural steel solutions for modern office buildings — designed for energy efficiency and occupant comfort.
Retail
Mechanical building services, pipework, and structural installations for retail and mixed-use developments across Ireland and the UK.
Pharmaceuticals
High-purity stainless steel process pipework (304/316), cleanroom mechanical services, and BMS integration for leading pharmaceutical and life sciences clients.