Gas Safety Certificates
CP12 London

Annual landlord gas safety inspections and CP12 certificates. Digital certificates issued same day by Gas Safe registered engineers.

📍 Coverage: West & North West London
07813 474638 Email Us
What We Check

A thorough inspection —
same day certificate

A Gas Safety Certificate — also known as a CP12 — is a legal requirement for all landlords. It must be renewed every 12 months by a Gas Safe registered engineer and confirms that all gas appliances, pipework and flues at your rental property are safe.

Digital certificates are issued on the day — so you can forward them to tenants and update your records immediately without any delay.

Boiler Inspection

Full check of the boiler including combustion, flue, safety devices and overall condition.

Gas Hobs & Cookers

All gas cooking appliances checked for safe operation, ignition and correct burner function.

Gas Fires & Heaters

Any gas fires or space heaters inspected for safe operation, flue integrity and ventilation.

Pipework & Connections

Visible gas pipework checked for signs of corrosion, damage or unsatisfactory connections.

Flues & Ventilation

All flues checked for integrity and correct termination. Ventilation requirements assessed for each appliance.

Gas Tightness Test

Gas supply pressure checked and a tightness test carried out to confirm no gas is escaping from the system.

How It Works

Simple, fast
and same day

01

Book the Inspection

Call us to arrange a convenient time. We can often accommodate short-notice bookings — particularly useful when a certificate is due urgently.

02

Inspection Carried Out

Our Gas Safe registered engineer carries out a thorough inspection of all gas appliances, pipework and flues. Usually takes around 30–45 minutes.

03

Certificate Issued Same Day

Your CP12 is issued digitally on the day — no waiting. Forward to your tenants and update your records immediately.

04

Any Issues Reported

If we identify any gas safety concerns, we report them clearly and advise on remedial work. We can carry out repairs at the same visit where possible.

Get in Touch

Free, no-obligation quote

Gas Safe Registered · No. 623092
Baxi · Vaillant · Worcester Bosch Accredited
English · Punjabi · Hindi spoken — ਪੰਜਾਬੀ ਅਤੇ ਹਿੰਦੀ
Hundreds of 5-Star Google Reviews
What Customers Say
★★★★★

"Absolutely wonderful service, we have installed a Worcester Bosch and a Baxi boiler and do the annual boiler servicing and landlord gas safety inspections. 100% reliable, transparent and competitive."

Su Su
Boiler Installation · Landlord Gas Safety · Google Review
★★★★★

"DGN Gas installed a new Baxi Boiler for me in February 2021, they have serviced and carried out the landlord gas safety inspections ever since. Excellent professional service."

John Ashcroft
Landlord CP12 · Annual Servicing · Google Review

Need a CP12 certificate?

Call us to book your gas safety inspection. Digital certificate issued same day. West & North West London.

07813 474638