Gas capping, safety certificates and the deep clean
Book a Gas Safe engineer and a final clean before handover.
Buyers, landlords and housing officers ask for certificates, and an unsafe appliance stops a handover dead.
- How long it takes
- A day
- Typical cost
- £80–£150 to cap gas; £150–£400 for a full deep clean
- What you need before you start
- Property cleared
- Meter readings taken
If appliances are being removed, gas must be capped by a Gas Safe registered engineer and you should keep the certificate.
A landlord's gas safety certificate is needed if the property is being re-let. An EICR is needed for electrics in a rented property.
A deep clean at the end — carpets, kitchen, bathroom, windows — measurably improves both the sale price and how the house feels to walk into.
General information, not legal advice. Last reviewed 19 August 2026 by Simon D Campbell. Applies to England and Wales.