How do I verify a gas engineer?

Check the Gas Safe Register online using the engineer's ID number. Confirm the registration covers the work type (e.g. boiler, pipework). See [[gas-safety-cp12-england|gas safety guide]].

What insurance should contractors hold?

Public liability insurance of at least £1 million is standard; many agents require £2 million or more. Request a certificate dated within the last 12 months.

Do contractors need DBS checks?

Not legally required for maintenance, but some agents and landlords request enhanced DBS for contractors with unsupervised access to tenanted properties.

How often should vetting be renewed?

Review registrations and insurance annually at minimum. Re-check immediately if a contractor changes company or registration number.

For Letting Agents7 min readLast reviewed 4 July 2026

Contractor Vetting Checklist for Letting Agents in England

Before dispatching contractors to tenanted properties, verify registrations, insurance, references, and trade suitability — especially for gas and electrical work.

Key takeaways

Only Gas Safe registered engineers may work on gas appliances in rented homes.
Electrical notifiable work requires registered electricians (NICEIC, NAPIT, etc.).
Public liability insurance must be current before first dispatch.
Annual re-verification catches lapsed registrations and expired policies.
Preferred contractor lists speed maintenance but need documented vetting.
Poor contractor choice exposes landlords to safety liability and disrepair claims.

Identity and business details

Limited company or sole trader name verified.
Registered business address confirmed.
VAT number checked if applicable.

Contractor Vetting Checklist for Letting Agents in England

Key takeaways

Identity and business details

Trade registrations

Insurance and liability

References and track record

Ongoing monitoring

Frequently asked questions

Triage maintenance before you open the ticket