Gas Safety Certificates Landlords

Gas Safety Landlords are a London based company who offer gas safety certificate landlord to individuals selling their property or requiring a gas safety certificate after a new boiler installation, landlords, estate agents, property management companies, inventory companies and Energy Performance Certificate (EPC) companies.

Items Checked

  • Gas supply
  • Gas appliances
  • Gas flues
  • Ventilation


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What if an appliance fails the gas safety landlords certificate (CP12)?

If a gas appliance/ installation has any problems and fails the gas safety landlords certificate (CP12) the gas safe engineer may either leave a warning notice for the landlord or in some cases disconnect the appliance or request that the gas company cut off the gas supply to the property.


The landlord will need to elect a gas safe engineer to remedy the fault by carrying out any works required or have the appliance replaced before reconnecting it. The paid invoices from the Engineer can be attached to the gas safety landlords certificate (CP12) to prove that the work has been carried out or a new gas safety landlords certificate (CP12) will need to be issued.


If the gas engineer notices any problems the landlord has to have them repaired by law. If a landlord fails to carry out any remedial work on the appliance or fails to provide a gas safety landlords certificate (CP12) they are committing a criminal offence. The “Health and Safety executive” can then prosecute. This can be anything from a fine to imprisonment.

Customer Reviews

Gas Safety Landlords

Customer Reviews

Bayo Adgega

Apart from my engineer running late due to traffic, my service went well and I am now waiting for my certificate, thanks for your help :)

Barbara Thompson

Good service and a brilliant company. For my location being on the edge of London is complicated for property services especially as engineers do not wish to travel that far. GSL got an engineer out the next day after booking, he was on time, completed the job nearly instantly and he was gone. I got my certificate 48 hours later and there was no complications. They say if it's too good to be true it probably is right? Not in this case! Cheers.

Michael Baldacchino

The feedback I have is only positive, the engineer was a quality chap and my gas certificate came on time after it was completed. Ill definitely consider your company shouldd I require a similar service.

isidro rotolo

Great service, professional staff and quick response time, impressive! I will be contacting you again soon.

Bruce Dennosa

Gas safety check completed by a gas safe registered engineer, which makes it a gas safe property. Thanks again.

Pal Supply

Completing my CP12 has put me at ease, knowing it needs to be renewed feels like your on a time limit before your gas appliances go crazy. But it's all done now, thanks! :)

Ashley Pickham

So relieved I spent my money on the right things. Great company and I got a great service, thank you.

Arnold Brenden

The discount provided was good, the service was even better! Thank you for your help guys.

Anya Sheifler

I was without an up to date gas certificate for my property for 2 days but you guys done the best you could and booked me in the earliest slot possible, thanks for being keen in helping me and finally completing the job.

Anthony Bug

I was politely asked to leave a review about my experience with gas safety landlords. It was without flaws, they were professional and punctual and the service was completed and passed successfully. Thanks.