Built on Experience. Driven by Delivery.

Behind every project is a team that takes pride in the work, values the relationships we build and stands behind the standard we deliver.

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Our Story

From a Workshop in Mayo to Projects Across Europe

Hayes Mechanical & Engineering was founded in 2015 in Ballintubber, Co. Mayo, by Alana and Seanie Hayes. Both brought years of experience from large-scale pipe fabrication workshops in Australia, where quality, traceability and on-time delivery are held to world-class standards.

Returning to Ireland, they set out to build a business founded on quality workmanship, dependable delivery and long-term relationships.

HME started small, growing one project and one client at a time. As the business grew, so did our investment in our people, fabrication facilities, technology and capability.

Today, Hayes Mechanical & Engineering is a specialist mechanical pipework and structural steel contractor, with established operations in Ireland, the United Kingdom and Germany and projects delivered across Europe.

While the business has grown, the principles remain the same: every job matters, every client matters and every project carries our name.

silhouette of the steel structure

Our Journey

2015
Started
Where It Started

Hayes Mechanical & Engineering is founded in Ballintubber, Co. Mayo by Alana & Seanie Hayes, bringing international fabrication experience home to Ireland.

2018
Building for the Future
New Purpose-Built Fabrication Facility

Our purpose-built fabrication facility opens in Ballintubber, creating the space and capability for the next stage of growth.

2018
Raising the Standard
EN 1090-Ex 2 Certification Achieved

Hayes achieves EN 1090 certification, strengthening our structural steel fabrication capability and quality controls.

2019
Expanding Our Capabilities
Dedicated Stainless Steel Workshop

Investment in a dedicated stainless-steel workshop expands our capability for high-specification stainless steel pipework and fabrication.

2020
Investing in Our Future
New Headquarters in Ballintubber

Our purpose-built two-storey office facility opens alongside our fabrication workshops, creating a dedicated base for our growing engineering, project and support teams.

2022
Safety at the Core
ISO 45001 Certification Achieved

Hayes achieves ISO 45001 certification, recognising the H&S management systems embedded across our operations.

2023
Quality & Recognition
ISO 9001 Certification & Irish Steel Awards

Hayes achieves ISO 9001 certification and is named Growth & Excellence Winner at the Irish Steel Awards, alongside runner-up recognition in Pipe Fabrication & Installation and H&S.

2025
Capability at the Next Level
EN 1090 EXC3 Achieved

Hayes advances from Execution Class 2 to Execution Class 3, enabling us to fabricate structural steel for more complex and higher-risk structures where greater technical control, welding quality and traceability are required.

2025
A Landmark Year for Hayes
Recognised at Irish Steel Award

Our project delivery is recognised with an Irish Steel Award for Mechanical Engineering, alongside Business All-Star Accreditation and being named Business All-Star Breakthrough Business of the Year 2025.

2026
Expanding Across Europe
Ireland • United Kingdom • Germany

With established operations in the United Kingdom and Germany, strengthening our ability to support clients and deliver projects across Europe.

Statistics

Explore Our Extensive Industrial Expertise.

Discover our broad industrial expertise, delivering innovative and reliable solutions for your business.

Our certifications are not badges - they are the foundation of every project we deliver.

Accredited. Certified. Compliant.

EN1090 EXC3 - Structural Steel
HM&E holds BS EN 1090-2 accreditation for CE marking of structural steelwork, certified to Execution Class 3 - the highest demanded by data centres, pharmaceutical facilities and major industrial projects. This accreditation covers the fabrication and erection of structural steelwork to the highest European execution class.
ISO 9001, ISO 14001 & ISO 45001 Certified
Our ISO 9001 Quality Management System ensures that every project is managed, documented and delivered to a consistent and auditable standard. Our ISO 14001 ensures the environmental safety and complies with the laws made for saving the environment. Our ISO 45001 Occupational Health & Safety certification reflects our unwavering commitment to sending every person home safely, every day. Both are maintained under annual surveillance audits.
ASME IX & EN15614 Welding Standards
All welding at HM&E is carried out in line with ASME Section IX and EN ISO 15614 standards, with full weld traceability maintained throughout. Our welders are qualified to the relevant procedures, and every weld is traceable from material origin through to final inspection record - critical for pharmaceutical, data centre and process engineering clients.

Sectors We Deliver For

High-spec mechanical pipework, structural steel and modular systems for hyperscale and co-location data centre projects.
Dedicated stainless steel fabrication in a segregated, controlled environment - meeting the stringent hygiene and traceability requirements of pharmaceutical clients.
Mechanical pipework, structural steelwork and large-diameter pipe systems for municipal and industrial water treatment infrastructure.
End-to-end mechanical and structural engineering for commercial developments and industrial facilities across Ireland and the UK.
Mechanical installation and structural steelwork for public sector and education infrastructure projects throughout Ireland.
Tell us about your requirements and one of our team will get back to you within 24 hours.

Ready to Discuss Your Project?