Permit to Work: What It Is and When You Need One
A practical guide for contractors, site managers and UK businesses
A Permit to Work (PTW) is a formal written system used to control high-risk activities. It ensures work is only carried out once specific checks, precautions and authorisations are in place.
When a Permit to Work is required
Permits are typically used for work that could cause serious injury if uncontrolled, such as:
- Hot works (grinding, welding, cutting, soldering)
- Work on live electrical systems
- Confined space entry
- Working at height
- Excavation and ground disturbance
- Lock-off / isolation of machinery
- Roof work
- Work involving hazardous energy
If the activity creates a risk beyond normal day-to-day operations, a permit is usually appropriate.
What a Permit to Work includes
A clear, effective PTW should cover:
- Scope of work
- Exact location
- Hazards and risks
- Required controls (PPE, isolation, ventilation, supervision)
- Start and end times
- Authorisation signatures
- Hand-back and close-out confirmation
A permit is not just paperwork — it’s an active control measure that ensures everyone understands the risks and responsibilities.
Why Permits to Work are essential
- Prevents unauthorised or unsafe work
- Ensures isolations are correctly applied
- Reduces fires, explosions, falls, and entrapment risks
- Provides a clear communication channel between contractors and site management
- Demonstrates legal compliance and due diligence
In UK industry, PTWs are a core part of safe site management — especially where multiple contractors are involved.
Hot Work Permit Template (Docuqo 0105)
If you need a professionally designed Permit to Work for hot works such as welding, cutting, soldering or grinding, you can download our compliant UK Hot Work Permit Template here:
Hot Work Permit Template – Docuqo 0105
This template helps you record hazards, isolations, control measures, fire watch details and authorisation signatures to ensure safe, controlled hot work on site.
