Landlord Gas Safety Certificates in Barnet (CP12) Explained

If you let property in Barnet or anywhere across North London, the law is clear: every gas appliance in the home must be checked by a Gas Safe registered engineer every twelve months, and you must give your tenant a copy of the resulting certificate — known as a CP12 or Landlord Gas Safety Record.

A proper inspection covers every gas appliance you own — boiler, gas hob, gas fire and any flue serving them. We test for gas tightness, burner pressure, ventilation, flue performance and combustion. If anything fails we'll flag it as ID (Immediately Dangerous) or AR (At Risk) and either isolate or repair before issuing the certificate.

For a typical Barnet flat with one boiler and a hob, a standalone CP12 is £75–£95. Bundle it with a boiler service on the same visit and the combined price drops to around £130 — most landlords choose this option as it covers both legal duties in a single appointment.

You can renew a CP12 up to two months before its expiry date without losing any of the original twelve-month period. We diary-manage every Barnet landlord on our books and automatically remind you 60 days before renewal so you never miss a deadline.

Letting a property without a valid certificate carries fines of up to £6,000 per appliance, and in serious cases unlimited fines and imprisonment. Insurance is also invalidated, meaning a single gas-related incident could leave you personally liable. It simply isn't worth the risk.

Managing five or more units across North London? We offer dedicated portfolio pricing including digital certificates, tenant-direct delivery and a single invoice. Many of our agency partners across EN4, EN5 and N20 add a heating maintenance plan so repairs are pre-priced and out-of-hours cover is included.

We book Barnet landlord checks on weekdays, weekends and evenings to fit around tenant schedules. Most appointments are completed within 45 minutes and the digital certificate is in your inbox the same day.