Gas Safe registered engineer testing a domestic boiler in a London rental property

Alesta · Gas safety certificates in London

Gas safety checks, properly recorded.

A structured landlord gas safety inspection by a Gas Safe registered engineer, with appliances, flues, access and property details confirmed before the visit.

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The inspection before the record

A certificate records a defined safety check—it is not a blanket guarantee.

For rented residential property, the relevant gas appliances and flues supplied by the landlord must receive the required safety checks at the correct interval. The engineer needs safe access, appliance details and a working supply before meaningful inspection and testing can take place.

The resulting Landlord Gas Safety Record identifies what was checked and the findings at that time. It does not replace appliance servicing, repair, electrical inspection, ventilation design work or investigation of installations that were inaccessible or outside the agreed scope.

Appliance safety checks

Listed landlord-supplied gas appliances examined and tested to the applicable inspection scope.

Flue and combustion review

Relevant flue performance, combustion and safety provisions checked using appropriate methods.

Installation observations

Visible signs, appliance location and required ventilation or safety concerns considered.

Landlord Gas Safety Record

The inspected items, results and necessary actions documented after the visit.

Gas engineer explaining a landlord gas safety record to a property owner

Common reasons customers call

When a rental property needs a current gas safety record.

The annual check is approaching

A landlord or managing agent needs the visit coordinated before the existing record expires.

A tenancy is being prepared

Appliance access, keys and records need organising before the tenant handover.

The property has several gas appliances

Boilers, fires or other listed appliances need to be declared so visit time is suitable.

A previous record identified action

Outstanding safety or access points need review rather than simply issuing another document.

Why Alesta for gas safety records

An inspection arranged around compliance and access.

Registered engineer assigned

Gas work is carried out only by an engineer with the appropriate Gas Safe competence.

Appliance list confirmed

The number, type and location of gas appliances are gathered before attendance.

Access coordinated clearly

Tenant notice, keys, meters, cupboards and controls are considered before the appointment.

Findings are not concealed

Safety concerns, limitations and necessary next steps are documented and explained.

A documented safety inspection

How we carry out a landlord gas safety check.

Gas engineer carrying out combustion and flue checks beside a residential boiler

Booking begins with the property and appliance schedule. We ask for the address, landlord or agent details, tenant contact and the number and type of landlord-supplied gas appliances. Access to the boiler, fires, meter, isolation controls and relevant flue terminals must be available. Existing records and known faults should be shared in advance. The engineer’s Gas Safe registration and competence must cover the appliance types being inspected.

At the property, the engineer confirms the listed appliances and carries out the applicable visual and operational safety checks. This can include appliance condition and stability, correct operation, safety devices, combustion performance, flue flow or integrity, and the visible suitability of ventilation where relevant. The exact tests depend on appliance and installation type. A check cannot be completed properly if gas, electricity, water, controls or required access are unavailable.

If a dangerous condition is identified, the engineer follows the applicable gas-industry safety procedure. Depending on the classification and circumstances, this may involve warning the responsible person, making the situation safe, isolating equipment with consent or directing urgent remedial action. A certificate is never issued merely because one has been requested. Repair or servicing is a separate scope and proceeds only when qualified resources, parts, time and authorisation are available.

After the inspection, the Landlord Gas Safety Record identifies the property, responsible parties, engineer, appliances checked, results and any defects or actions. The landlord or managing party remains responsible for retaining the record, giving the required copy to tenants and arranging checks within the statutory timetable. Any inaccessible appliance or limitation is recorded rather than assumed safe. This preserves the real purpose of the document: evidence of a competent check at a defined point in time.

Clear pricing

Gas safety certificate prices.

Cost depends on property access, number and type of gas appliances, parking, previous findings and whether a return visit is needed.

Service scopePriceWhat affects the final price
Single-property landlord gas safety checkQuoted after assessmentAppliance count, type, location, access and engineer travel
Property with multiple gas appliancesQuoted after assessmentBoiler, fires, additional appliances, test time and records
Remedial work or return visitQuoted from findingsDefect, parts, labour, isolation status and further testing

Pricing context: The appliance schedule and access details are required before price confirmation. A safety check does not include servicing or repairs unless those are separately specified and authorised.

How the service works

From appliance schedule to a clear safety record.

01

Confirm property, appliances and access

Provide tenant or key details, appliance list and any previous record.

02

Inspect and test safely

A suitably registered engineer completes the applicable appliance and flue checks.

03

Record findings and next steps

The inspection result, limitations and required action are documented clearly.

Gas safety certificate FAQ

Before the gas safety visit.

Useful answers for landlords and agents about timing, access, appliances, records and defects.

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Who can carry out a landlord gas safety check?

It must be carried out by a Gas Safe registered engineer whose current competence covers the appliance types being checked. Registration details can be verified on the official Gas Safe Register.

How often is a landlord gas safety check required?

Landlords generally must arrange the safety check every 12 months and follow the current legal timing and record-sharing rules. Responsibility remains with the landlord or managing party.

Which appliances need to be declared?

Tell us about every landlord-supplied gas appliance and relevant flue, including boilers and gas fires. Tenant-owned appliances may have different landlord duties, so disclose them for proper consideration.

What access does the engineer need?

Provide access to each listed appliance, meter, controls, cupboards and relevant flue areas, with gas and other required utilities available. Tenant notice and keys should be arranged beforehand.

Is a boiler service included?

No. A gas safety check and appliance service are different scopes. Servicing or repair is included only when separately booked and confirmed.

What happens if a defect is found?

The engineer records and explains it and follows the applicable safety procedure. Equipment may need to be made safe or isolated, and remedial work can require a separate quote and visit.

What affects the final price?

Appliance number and type, property access, parking, previous defects, unavailable services and any required return visit influence the total.

Need a landlord gas safety check arranged?

☎ Call 020 3608 3976