Landlord gas safety certificatesin Harrow for a fixed £75,done properly and on time
Stay legally compliant and keep your tenants safe with a CP12 carried out by a Gas Safe registered engineer.
£75 fixed price · From £150 with a boiler service · Gas Safe 961481
20 years
trade experience
Gas Safe
Registered no. 961481
£10m
public liability cover
24/7
emergency service
10 years
copper pipework guarantee
Service overview
Landlord Gas Safety Certificate (CP12): what it is and when you need it
What it is
A Landlord Gas Safety Record, often called a CP12, is the annual safety check of every gas appliance, fitting and flue in a rented property. The engineer checks each appliance is safe to use and records the results on the certificate.
Who it's for
Private landlords, letting agents managing properties, and owners of HMOs and holiday lets in Harrow, North West London and Hertfordshire.
When you need it
Every 12 months, before a new tenancy starts, and after any new gas appliance is fitted. Tenants must receive a copy of the record.
Why use a professional
The Gas Safety (Installation and Use) Regulations 1998 make annual gas safety checks a legal duty for landlords. The check must be carried out by a Gas Safe registered engineer.
The cost of waiting
What happens if you leave it
A missed or late gas safety check is a legal and safety risk you don't need.
Risks if it's ignored
- Landlords can face enforcement action and fines for failing to carry out annual checks.
- An unsafe appliance can put tenants at risk of carbon monoxide poisoning.
- A missing record can cause problems when serving notice or with insurance.
- Unchecked appliances are more likely to break down, leading to urgent tenant call-outs.
Common mistakes we see
- Letting the certificate expire between tenancies.
- Not giving tenants a copy of the record.
- Using someone not on the Gas Safe Register.
- Booking the check and the boiler service separately and paying twice for call-outs.
Our process
How we handle your landlord gas safety certificate (cp12)
01
Book
Call or send the form. We arrange access with you or your tenant.
02
Inspect appliances
Each gas appliance, flue and fitting is checked for safe operation.
03
Test
We carry out tightness and operational tests as required.
04
Advise
Any issues are explained clearly with the action needed.
05
Certificate
You receive your Landlord Gas Safety Record for your files and your tenant.
What you get
The benefits of doing it properly
Fixed £75
A clear, fixed price for your Landlord Gas Safety Certificate.
Save with a combined visit
Certificate and boiler service together from £150.
Legal compliance
Meet your annual gas safety duty as a landlord.
Safer tenants
Appliances checked by a Gas Safe registered engineer (961481).
Fewer call-outs
Problems found early, before your tenant calls at midnight.
Local cover
Harrow-based, covering North West London and Hertfordshire.
In detail
What landlords need to know about the CP12
Here's how the gas safety check works for different types of rental property.
Price
£75
What is checked
Every gas appliance and flue provided by the landlord: boilers, gas fires and gas hobs or cookers. Appliances owned by the tenant are the tenant's responsibility, though the pipework feeding them is checked.
Single lets vs HMOs
HMOs often have more appliances and more people at risk. The same annual check applies, and records should be easy to show to the local authority.
Between tenancies
Arrange the check before a new tenant moves in so the record can be given to them at the start of the tenancy.
Combining with a boiler service
A gas safety check is not a boiler service. Doing both in one visit, from £150, keeps the boiler maintained and the paperwork in order.
Letting agents
We can arrange access directly with your tenants or agent, so you do not need to be there.
Useful guide
A landlord's checklist for gas safety
Keep a record of each annual check and when the next one is due. Many landlords book the next check as soon as the current one is complete, so there is no risk of it lapsing. Give a copy of the record to existing tenants within 28 days of the check, and to new tenants before they move in.
Make sure there is suitable access to every gas appliance, and that carbon monoxide alarms are fitted where required. Tenants should know where the gas meter control valve is and what to do if they smell gas.
Combining the gas safety check with an annual boiler service, from £150, means one visit, one appointment to arrange with the tenant, and a boiler that is maintained as well as certified.
If an appliance fails the check, we explain clearly what is wrong and what needs to be done. Unsafe appliances must not be used until they are repaired.
For letting agents and landlords with several properties, keeping all gas safety records and renewal dates in one place makes compliance much easier. Tell us the addresses and when each certificate is due, and we can arrange the checks so none are missed. Where a boiler in a let property is old or unreliable, we can also quote for a replacement to reduce emergency call-outs from tenants.
Why J&L
Why homeowners and landlords call us
J&L Gas & Renewables Limited is a Gas Safe registered heating and gas engineering company based in Harrow, registration number 961481. We bring 20 years of trade experience to every job, from a single repair to a full heating system.
We are approved installers for Worcester Bosch and Vaillant, so new boilers can come with manufacturer warranties of up to 10 years. Copper pipework we install carries a 10-year guarantee, and we carry £10 million public liability cover.
Our pricing is clear: Landlord Gas Safety Certificates cost £75, boiler services start from £100, and a combined certificate and service starts from £150. Installations are quoted individually after a survey. If anything isn't right after an installation, we commit to putting it right until you're fully satisfied.
Local service
Landlord Gas Safety Certificate (CP12) across North West London and Hertfordshire
We're based at Banner House, 29 Byron Road, Harrow, and cover homes and rental properties in these areas:
- Harrow
- London
- Watford
- Stanmore
- Radlett
- St Albans
- Bushey
- Rickmansworth
- Hemel Hempstead
- Barnet
- Pinner
- Edgware
- Wembley
- Ruislip
- Northwood
- Borehamwood
- Mill Hill
- Kings Langley
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Questions
Landlord Gas Safety Certificate (CP12) FAQs
Can't see your question? Call 07843 900760; our emergency heating service runs 24/7.
How much is a CP12 in Harrow?
A Landlord Gas Safety Certificate (CP12) costs £75. Combined with a boiler service, prices start from £150.
How often do I need a gas safety certificate?
Every 12 months, and a copy must be given to your tenants.
Is a CP12 the same as a boiler service?
No. A CP12 is a safety check of all gas appliances; a service maintains the boiler. We can do both in one visit from £150.
Do I need to be at the property?
No. We can arrange access with your tenant or letting agent.
What happens if an appliance fails the check?
We explain the problem and the action needed. Unsafe appliances must not be used until repaired.
Do you cover rental properties in Watford and Ruislip?
Yes. We carry out landlord gas safety checks across Watford, Ruislip, Northwood and the rest of our area.
When must tenants receive the certificate?
Existing tenants within 28 days of the check; new tenants before they move in.
Do you offer a 24/7 emergency service?
Yes. J&L Gas & Renewables runs a 24/7 emergency service for boiler breakdowns and heating faults across Harrow, North West London and Hertfordshire. Call us at any hour and speak to us directly.
Are your engineers Gas Safe registered and insured?
Yes. We are Gas Safe registered (number 961481) and carry £10 million public liability cover. You can check our registration on the Gas Safe Register before we arrive.
How do I pay?
Payment is by bank transfer on invoice. For boiler installations over £2,000 we usually ask for a 50% deposit. Payment timing is agreed with your quote.
Get your landlord gas safety certificate (cp12)sorted by a Gas Safe engineer.
1. You call or send the form
Tell us what you need, your postcode and the best time to reach you. Let us know whether you need an installation, servicing or emergency heating help.
2. You get a clear price
CP12 certificates cost £75, servicing starts from £100 and combined visits start from £150. For bigger jobs, a written quote after we've seen the work, so there are no surprises later.
3. We do the work properly
A Gas Safe registered engineer completes the job, tests it and explains what was done. Payment is by bank transfer on invoice.
Call now for a clear price and a straight answer. Gas Safe registered 961481, £10m insured, 20 years' experience.