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CP12 certificates in London

Landlord Gas Safety Certificate (CP12) in London

Arrange the annual gas safety check for a rental property with a local Gas Safe registered engineer. After the visit, you receive the Landlord Gas Safety Record commonly called a gas safety certificate or CP12 certificate.

Tell us the postcode and number of gas appliances for a clear price. Urgent and same-day CP12 appointments may be available in some London areas, subject to engineer availability and safe access.

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Essential guidance

What is a landlord gas safety certificate?

The official document is a Landlord Gas Safety Record. "CP12 certificate" is the familiar industry name and a common search term, but CP12 was the name of an older form.

The record shows the annual safety checks completed on the gas appliances and flues that the landlord owns and provides for tenants. It identifies the property, appliances, engineer, inspection date, any safety defects and action taken.

The record is not a guarantee that an appliance will remain fault-free for the next year. Landlords also have a separate duty to keep relevant gas pipework, appliances and flues maintained in a safe condition.

What to check

Who needs a gas safety check for landlords?

Landlords must normally arrange an annual gas safety check for each gas appliance and flue they own and provide for tenants in domestic premises. The check must be carried out by a Gas Safe registered engineer who is competent for the relevant appliance type.

The duties can apply to:

If the tenancy or property use is unusual, check the legal position rather than assuming a generic CP12 covers every duty.

  • Private rental homes and flats
  • Houses in Multiple Occupation
  • Housing association and local-authority accommodation
  • Rooms, bedsits and some short-term accommodation
  • Communal appliances serving rented homes
  • Agents where the management agreement gives them responsibility
Essential guidance

How often is a CP12 certificate required?

The gas safety check is required every 12 months. A landlord can arrange it in the two months before the due date and, where the legal conditions are met, retain the original annual deadline.

Existing tenants must normally receive a copy of the record within 28 days of the check. New tenants must receive the current record before they move in. Landlords must retain records for at least two years, with longer evidence needed when using the early-check flexibility.

Booking early reduces the risk of losing time to tenant access, engineer availability or follow-up work.

What to check

What does a Gas Safe registered engineer check?

The engineer completes the safety checks required for the appliances and flues within scope. The visit may include checking:

The completed record should include the engineer's name, signature and Gas Safe registration number, the property and landlord or agent details, the inspection date, the appliances or flues checked and any defects or remedial action.

Before the visit, you can verify the business and engineer on the Gas Safe Register and check the back of the engineer's ID card for the categories of gas work they are qualified to carry out.

  • Appliance identification and location
  • Safe operation and condition
  • Operating pressure or heat input where applicable
  • Flue performance and safe removal of combustion products
  • Ventilation requirements
  • Safety devices and controls
  • Signs of unsafe operation or defects
  • Any immediate action needed to make an appliance safe
What to check

Landlord gas safety check price in London

The price normally depends on the number and type of appliances, property location and whether any additional service is requested.

For an accurate CP12 certificate London price, tell us:

The quote should state the number of appliances included, VAT status and any parking, congestion or additional-appliance charges.

  • Full property postcode
  • Number and type of gas appliances
  • Whether the boiler, hob, fire or other appliance is landlord-provided
  • Whether a communal appliance is involved
  • Access contact and preferred date
  • Parking or Congestion Charge information
  • Whether you also want a boiler service
What to check

Cheap gas safety certificate London: compare the whole service

The lowest headline price may cover only one appliance or selected postcodes. Before booking a cheap gas safety certificate, check:

A compliant, properly completed record is more valuable than a low price that changes after the engineer arrives.

  • The engineer and business are on the Gas Safe Register
  • The engineer is qualified for each appliance category
  • The quoted number of appliances is correct
  • The Landlord Gas Safety Record is included
  • Extra-appliance, parking and congestion charges are clear
  • Report delivery and follow-up arrangements are explained
Essential guidance

HMO gas safety certificate

An HMO with landlord-provided gas appliances and flues needs the same annual safety discipline as other rented homes. Licensed HMOs may also have council conditions that require an up-to-date gas safety record to be supplied with the application and at specified intervals.

Tell us about communal kitchens, multiple boilers, bedsits, locked rooms and the person responsible for access. If appliances serve more than one dwelling, clarify ownership and management responsibility before the visit.

A clear process

Gas safety certificate for a rental property

The simplest way to stay organised is to plan the check before the existing record reaches its renewal window.

  1. 01

    Check the current record

    Note the annual deadline and appliances listed.

  2. 02

    Confirm access

    Give reasonable notice and retain clear communication with the tenant or agent.

  3. 03

    Book the registered engineer

    Share the appliance list, address and any known faults.

  4. 04

    Receive and distribute the record

    Keep it securely and provide copies within the required timescales.

  5. 05

    Act on defects

    Do not use an appliance identified as unsafe. Arrange the required work and keep evidence of follow-up action.

Essential guidance

Same-day CP12 certificate and urgent bookings

If a tenancy is due to start or a record is close to expiry, ask about the earliest local slot. Same-day availability depends on the postcode, appliance categories, access and engineer schedule.

An urgent booking is still a full safety check. The record should not be issued until the required checks are complete, and a defect must be recorded even if remedial work cannot be completed during the same visit.

Important safety information

Emergency landlord gas safety check

A certificate appointment is not an emergency response. If you smell gas, suspect a gas escape or believe carbon monoxide may be present:

  • Leave the affected area and ventilate by opening doors and windows where safe.
  • Do not smoke, use naked flames or operate electrical switches.
  • Turn off the gas at the meter only if you know how and it is safe to do so.
  • Call the National Gas Emergency Service on 0800 111 999 from a safe place.
  • Do not use a suspected unsafe appliance until it has been checked by a competent Gas Safe registered engineer.
Essential guidance

Boiler service and gas safety certificate London

A gas safety check and a boiler service are related but not identical.

The annual landlord check addresses the prescribed safety points and produces the Landlord Gas Safety Record. A boiler service is a maintenance activity carried out in line with the manufacturer's instructions and may involve additional cleaning, inspection and performance work.

Do not assume one automatically includes the other. If you need both, select or request the combined boiler service and gas safety certificate option and confirm exactly what is included in the price.

Good to know

Commercial landlord gas safety

Purely non-residential premises do not always follow the domestic landlord CP12 route. Responsibility can depend on the use, lease, appliances and relevant workplace health-and-safety duties.

Tell us whether the premises are a shop, office, restaurant, mixed-use building or commercial unit; who owns the gas appliances; and whether any system also serves residential accommodation. We can then confirm the appropriate gas safety service and engineer competence rather than issuing the wrong document.

Essential guidance

Local gas safety certificate near me

Search by the rental property's postcode. CertifyEPC supports landlord gas safety enquiries across London and the M25 coverage area confirmed at booking.

For faster scheduling, have the appliance list, existing record, access contact and parking information ready. Always ask to see the attending engineer's Gas Safe ID card when they arrive.

Gas safety answers

Frequently asked questions

Clear answers before you arrange the visit.

Is a CP12 the same as a landlord gas safety record?

Yes in everyday usage. The current official term is Landlord Gas Safety Record; CP12 is the older form name that remains widely used.

How long is a gas safety certificate valid?

The annual check cycle is 12 months. Landlords may be able to complete the check up to two months early and retain the existing deadline where the regulatory conditions are met.

How many appliances are included in the price?

This must be stated in the quotation. Give the correct number and type of landlord-provided gas appliances so additional charges are clear before the visit.

Does the engineer check tenant-owned appliances?

The landlord's annual duty generally covers appliances the landlord owns and provides. The landlord retains responsibilities for relevant installation pipework, and HSE recommends considering connected flues even where an appliance is tenant-owned. Explain the situation when booking.

What if an appliance is unsafe?

The engineer records the defect and takes appropriate safety action. The appliance must not be used until it is made safe. The record should be issued after the completed checks and supplemented with evidence of follow-up work.

Can the certificate be emailed to the tenant?

Yes, if the tenant agrees and can access it. A paper copy should be provided if requested. The landlord must keep the record securely and be able to reproduce it.

Do I need a carbon monoxide alarm as well?

In England, relevant landlords must provide a carbon monoxide alarm in rooms used as living accommodation that contain a fixed combustion appliance, excluding gas cookers. Alarm duties are separate from the annual gas safety check.

Can I book gas safety checks for several properties?

Yes. Send the property list, appliance counts, current renewal dates, access contacts and preferred schedule for a portfolio quotation.

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Landlord gas safety

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Enter the rental property postcode and appliance details. We will confirm local availability, what the quote includes and the next suitable Gas Safe registered engineer appointment.

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