NAS Certification for
Commercial Property Contractors
Independent, evidence-based compliance certification for contractors working in offices, retail fit-out, commercial maintenance, and property management supply chains.
Prove your compliance to commercial property managers, REITs, managing agents, and corporate estates teams — with a live certification profile, not a static PDF.
Why It Matters
Commercial Property Clients Demand Verified Compliance
Commercial property managers, REITs, and major occupiers are under increasing pressure to demonstrate that their contractor supply chains are compliant — before any work begins on their assets.
For commercial contractors, NAS certification signals to clients that your compliance has been independently reviewed and documented — covering CDM, COSHH, GDPR, and the standards that matter to corporate estates teams.
- Independent, evidence-based NAS certification
- Demonstrates compliance to commercial property managers and REIT clients
- Supports PQQ and tender submissions for office, retail, and commercial fit-out
- Health & safety and COSHH compliance independently reviewed
- CDM Regulations compliance for fit-out and refurbishment projects
- GDPR compliance for contractors accessing client buildings and data
- Live digital profile shared with property clients and managing agents
- Free certificate verification on the NAS public register
Evidence that commercial property managers and corporate occupiers can check for themselves.
What Gets Assessed
NAS assessment reviews evidence across core compliance areas. Here's what commercial property contractors typically need to demonstrate.
Health & Safety Policy
A current, signed H&S policy covering commercial environment risks and contractor responsibilities.
CDM Regulations
CDM 2015 compliance documentation for commercial fit-out, refurbishment, and maintenance projects.
COSHH Compliance
Chemical, materials, and substance handling procedures for contractors working in occupied commercial premises.
Insurance Evidence
Valid Employer's Liability and Public Liability insurance at appropriate cover levels, verified at assessment.
GDPR / Data Protection
Data Protection compliance for contractors with access to client buildings, IT infrastructure, or sensitive areas.
Environmental Protection
Environmental Protection Act compliance for demolition, waste, and refurbishment contractors working in commercial buildings.
Choose the Right NAS Tier
All tiers include H&S assessment. Higher tiers add broader compliance coverage for larger commercial contracts.
Health and safety policy and arrangements, risk assessments and method statements, COSHH, CDM duties, training, insurance and subcontractor checks — the SSIP core criteria.
- Health & safety policy
- Risk assessments & method statements
- Training & insurance
- Public register listing
Everything in Basic plus legal identity and licences, employers’ liability insurance, data protection, equality, complaints handling, employment terms and right-to-work checks.
- Everything in Basic
- Data protection & equality
- Employers’ liability & employment checks
- Public register listing
Everything in Bronze plus environmental and waste management, quality and corrective action, governance and conflicts of interest, competition law, pensions, working time and subcontractor approval.
- Everything in Bronze
- Environmental & waste management
- Quality & governance
- Public register listing
Everything in Silver plus 13 procurement modules: financial standing, anti-bribery and integrity disclosures, tax status, cyber security, ethical supply chain, sustainability and Building Safety Act readiness.
- Everything in Silver
- 13 procurement modules
- Anti-bribery & financial standing
- Building Safety Act readiness
Frequently Asked Questions