ISO Standards Propel Precision Construction Limited to New Heights
ISO 9001, ISO 14001, and ISO 45001 Certification
Client Overview
Precision Construction Limited is a mid-sized construction and civil engineering firm based in Ireland, serving a mix of private and public sector clients across the Leinster region. Under the leadership of Patrick O’Sullivan, Managing Director, and Killian O’Sullivan, Director, the company has long prided itself on delivering high-quality projects while upholding strong environmental stewardship and workplace safety. In response to rising client expectations and tightening regulatory standards, Precision Construction recognised the importance of formal ISO certifications to validate and enhance its operational credibility.

The Challenge
Patrick O’Sullivan explains:
“As a company dedicated to excellence, we had informal systems in place for quality, environmental safety, and occupational health, but without the rigour of ISO certification, we were missing a strategic edge. Requests from public procurement bodies and key clients demanded formal proof of our systems. We needed to transform our internal practices into internationally recognised standards.”
To address this gap, Precision Construction turned to CG Business Consulting for support in securing ISO 9001, ISO 14001, and ISO 45001 certification.
Our Approach
CGBC partnered closely with Precision Construction, delivering a structured, hands-on implementation plan:
- They began with a detailed gap analysis, identifying areas needing development across quality, environmental, and occupational safety protocols.
- Together, they developed and refined policies, procedures, and documentation, including environmental risk assessments, quality control checklists, and safety incident registers.
- CGBC conducted internal audits to ensure readiness for certification.
- The team trained staff across multiple departments to embed the new standards into daily operations, ensuring clarity and accountability.
CGBC coordinated with external auditors, guided each stage of the certification process, and ensured all documentation met the highest expectations.
Key Results
- Streamlined Tendering and Client Onboarding
Killian O’Sullivan remarks:
“Now, when a public authority or a major client asks about our certifications, we simply present our ISO 9001, 14001, and 45001 certificates, and that’s that. It’s transformed our tendering process.”
- Enhanced Environmental and Safety Governance
“ISO 14001 gave us a clear, structured framework for managing environmental risk, from waste management to emissions control. And ISO 45001 empowered our safety protocols, helping us reduce near-misses and build a true culture of safety.”
- Audit Confidence and Operational Credibility
Killian adds:
“CGBC’s thorough preparation paid off. When the external auditor came, they complimented the integrity of our records and the clarity of our systems. It felt like a stamp of approval on everything we’d built together.”
- Tangible Business Benefits
“Being certified isn’t just about compliance, it’s about reputation. These ISO standards reaffirm our commitment to quality, environmental stewardship, and employee safety, which resonates strongly with our clients and partners.”
Client Experience
Patrick O’Sullivan on working in collaboration with CG Business Consulting:
“Working with CGBC was a genuinely refreshing experience. Every consultant was an expert in their field. If they didn’t know something instantly, they’d find the right answer within minutes.”
“They adapted perfectly to our needs and our pace. CGBC’s approach to helping us structure and embed these standards into everyday operations was intelligent and efficient, never a one-size-fits-all solution.”
Looking Ahead
With ISO 9001, 14001, and 45001 now securely in place, Precision Construction is excited about the future and the doors of opportunity these certifications will open.
“Achieving these ISO standards isn’t the end of the journey—it’s the beginning of a new chapter. We can now compete for larger, more complex projects, strengthen partnerships with major clients, and showcase our commitment to quality, sustainability, and safety on a global stage. With CGBC’s support, we feel ready to embrace the opportunities that lie ahead.”
Conclusion
Precision Construction’s journey showcases the transformative power of ISO certification when paired with the right consultancy partnership. Through collaboration with CG Business Consulting, the company fortified its quality, environmental, and safety systems, not just for compliance, but to drive operational excellence and long-term resilience.
Why Precision Construction Chose CG Business Consulting
- Expert guidance through every stage of ISO implementation.
- Tailored solutions designed for the realities of site-based operations and regulatory needs.
- Strong, trust-based partnership, with CGBC embedded into the client’s journey, not just advisory, but collaborative.
Are you looking to implement ISO 9001, ISO 14001, or ISO 45001? Contact CG Business Consulting today to see how we can help your business achieve compliance while improving efficiency and security.