We are known for
Hayes Mechanical & Engineering delivers a full range of mechanical, structural, and building services for commercial, industrial, and infrastructure projects across Ireland, the UK, and Europe. Founded in 2016 and based in Ballintubber, Co. Mayo, we have grown into a trusted engineering partner for some of the world’s most demanding clients — from global data centre operators and pharmaceutical manufacturers to healthcare providers and commercial developers.
Our capability spans the full project lifecycle — from early-stage design and budget estimates through to fabrication, installation, commissioning, and ongoing maintenance. We bring technical rigour, real-world delivery experience, and a team of 40+ skilled engineers and tradespeople to every project we take on.
At Hayes Mechanical & Engineering, we don’t just deliver to specification — we work alongside our clients and their project teams to find better solutions, reduce programme risk, and control cost at every stage. Whether you need a turnkey mechanical installation, a design-and-build partner, or specialist fabrication and pipework expertise, we have the team, the facilities, and the track record to deliver.
- Mechanical pipework — carbon steel, stainless steel, and high-purity process systems
- Structural steel fabrication and installation — EN1090 EXC2 & EXC3 accredited
- HVAC, CHW, and LPHW building services
- Modular skids and off-site pre-fabrication
- Full installation, commissioning, and project delivery
- Serving Ireland, UK, and mainland Europe
Sectors We Serve
Data Centres
Pharmaceuticals
Healthcare
Commercial
Office Developments
Retail
Areas of Expertise
CHW Services
LPHW Services
HVAC Building Services
Drainage
Building Management Systems (BMS)
Package Plant Rooms
Plumbing & Water Services
Process Stainless Steel Pipework (304/316 Dairy Tube)
Solutions We Offer
- Project Management: End-to-end technical project management with a dedicated PM from mobilisation to handover
- Turnkey Solutions: Full design, supply, fabrication, installation, and commissioning – single point of responsibility
- Design & Build: Integrated design and project delivery, reducing interfaces and accelerating programme
- Budget Estimates: Accurate early-stage cost planning to support investment decisions and tender strategy
- Scheduling: Detailed programme development and monitoring to keep projects on track
- Co-ordination: Multi-discipline co-ordination including MEP clash detection and BIM integration
- Procurement: Strategic material and subcontractor procurement to control cost and protect supply chains
- Commissioning: System commissioning, testing, and performance verification to client and regulatory standards
- Operations & Maintenance: Ongoing O&M services, PPM schedules, and reactive support for installed systems
- Testing: Pressure testing, leak testing, and functional testing of mechanical and pipework systems
- Value Engineering: Collaborative review of scope and specification to achieve cost savings without compromising performance
