ISO 45001 Certification Cost in the UK (2026)
Short answer: ISO 45001 initial certification typically costs £1,000–£2,000 in certification body fees for UK organisations, depending on size, sites and health and safety risk. Annual surveillance audits start from £700, and recertification follows in year three.
What you pay for
| Stage | When | Typical fee |
|---|---|---|
| Initial certification (Stage 1 + Stage 2 audit) | Year 1 | typically £1,000–£2,000 |
| Surveillance audit | Years 2 and 3 | from £700 per year |
| Recertification audit | Before the certificate expires (3-year cycle) | quoted on audit days |
These are certification body fees only. Travel outside the quoted area and extra audits after major nonconformities are not included unless the written quote says so.
Why ISO 45001 quotes vary
- Headcount: audit time comes from the IAF MD 5 tables for effective employees.
- Hazard level: construction, manufacturing and other high-risk activities need more audit time than office work.
- Temporary and multiple sites: sites and active projects that must be sampled add days.
- Integration with ISO 9001 or ISO 14001: one integrated audit usually costs less than separate audits — see integrated management system certification.
Before you compare quotes
- Check which accreditation body stands behind the certificate; UniCert is accredited by UAF for ISO 45001. Some UK public tenders ask specifically for UKAS-accredited certificates, so check the tender wording first.
- Make sure each quote covers the same audit days for the same headcount and sites.
- Ask whether surveillance and recertification are included in the three-year price.
Estimate your fee with the price calculator or request a quote. See ISO 45001 certification in the UK for the audit process, and ISO certification in the UK for other standards.
Frequently Asked Questions
How much does ISO 45001 certification cost in the UK?
Initial ISO 45001 certification typically costs £1,000–£2,000 in certification body fees, depending on headcount, sites and risk, with annual surveillance audits from £700.
Why is ISO 45001 more expensive for construction firms?
High-hazard activities and temporary sites need more audit time under the IAF MD 5 rules, and auditors must sample active sites.