
Introduction
As a landlord in London, ensuring the safety of your tenants is a top priority — and it’s a legal obligation. One of the most important responsibilities is obtaining an Annual Landlord Gas Safety Certificate London. This certificate confirms that all gas appliances, fittings, and flues are safe and operating correctly.
If you fail to comply, you could face heavy fines, invalidate your insurance, and even risk prosecution. In this guide, we’ll walk you through everything you need to know about landlord gas safety checks in London and South London, including legal requirements, inspection processes, and how to book your certificate.
What is an Annual Landlord Gas Safety Certificate?
The Annual Landlord Gas Safety Certificate London — commonly called the CP12 certificate — is an official document issued after a qualified Gas Safe registered engineer inspects your rental property. It ensures that all gas appliances, installations, and pipework are safe and fit for use.
Landlords must arrange a gas safety check every 12 months and provide a copy of the certificate to their tenants within 28 days of the inspection.
If you manage multiple properties, each property must have its own valid Annual Landlord Gas Safety Certificate.
Legal Responsibilities for Landlords
The Gas Safety (Installation and Use) Regulations 1998 clearly outline landlord obligations regarding gas safety:
✅ Annual Inspections: Arrange a landlord gas safety check London every year.
✅ Provide Certificates: Give tenants a copy of the certificate within 28 days of the inspection.
✅ Retain Records: Keep records of all gas safety checks for at least two years.
✅ Immediate Repairs: Address any issues found during the inspection before appliances are used again.
🚨 Penalties for non-compliance can include:
- Fines up to £6,000 per breach
- Potential imprisonment
- Inability to evict tenants using a Section 21 notice
- Invalidated landlord insurance
What Does a Landlord Gas Safety Check Include?
When you book a landlord gas safety check South London or anywhere in the city, a registered engineer will:
🔹 Inspect all gas appliances (e.g., boilers, ovens, heaters) for proper operation
🔹 Check gas pipes for leaks or signs of wear
🔹 Verify proper ventilation and safe removal of exhaust gases
🔹 Examine flues and chimneys for blockages
🔹 Test safety devices, such as carbon monoxide alarms
If any appliance is unsafe, the engineer will advise you to disconnect it until repairs are completed. Only once everything passes will you receive your Annual Landlord Gas Safety Certificate London.

How Much Does an Annual Landlord Gas Safety Certificate Cost?
The cost of obtaining an Annual Landlord Gas Safety Certificate in London varies depending on the size of the property and the number of gas appliances.
Tip: Booking your landlord gas safety check South London during a boiler service can often save money and ensure everything runs smoothly for the year ahead.
How Often Should Landlords Arrange a Gas Safety Check?
By law, landlords must arrange a gas safety check every 12 months.
However, if a tenant moves in shortly after the last inspection, it’s recommended to perform an additional check to reassure new tenants and avoid future disputes. Regular inspections between tenants are considered a best practice, even if not legally required.
How to Book a Landlord Gas Safety Check in London
Booking a landlord gas safety check in London is simple:
- Find a Gas Safe Registered Engineer: Only qualified engineers can issue valid certificates. Always ask to see their Gas Safe ID card.
- Schedule an Inspection: Arrange a convenient time for your tenant and the engineer.
- Inspection and Certificate: After the inspection, you’ll receive your Annual Landlord Gas Safety Certificate London.
- Provide the Certificate: Deliver a copy to your tenants within 28 days.
Why Choose James Winney Heating & Plumbing?
When it comes to getting a reliable and affordable Annual Landlord Gas Safety Certificate in London, James Winney Heating & Plumbing is the trusted choice.
Here’s why landlords love working with us:
✔️ Fully Gas Safe Registered
✔️ Same-day and emergency appointments available
✔️ Competitive pricing with no hidden charges
✔️ Experienced with all types of rental properties
✔️ Covering London and South London areas
📞 Call today on 07956 636 879
📧 Email: info@jameswinney.com
🌍 Visit: www.jameswinney.com
Final Thoughts
An Annual Landlord Gas Safety Certificate London is more than just a piece of paper — it’s your responsibility to ensure the safety of your tenants and your property. Whether you need a landlord gas safety check in London or a landlord gas safety check in South London, regular inspections protect lives, property, and your legal standing.
🔥 Don’t wait until it’s too late. Book your gas safety inspection today with James Winney Heating & Plumbing — the trusted name in landlord gas safety services across London!