Gas Safety Certificate
Westminster
Find certified gas engineers operating in the Westminster borough for landlord gas safety certificates (CP12). Our gas safety certificate Westminster service covers Marylebone, Pimlico, Bayswater, Maida Vale, Belgravia and St John's Wood. Pay a fixed £69 for up to four gas appliances plus the meter, with your digital CP12 delivered within 24 hours.
- Gas Safe Registered Engineers
- Fixed £69 Up to 4 Appliances
- Digital CP12 Within 24 Hours
- W1 · SW1 · NW8 · W2 · W9
A Gas Safety Certificate (CP12) is the annual record a Gas Safe registered engineer issues after checking the gas appliances and flues you provide as a landlord.
Domestic properties. Gas Safe registered engineers.
Please enter a valid UK postcode.
Please choose one.
1, 2, 3 or 4 gas appliances plus the gas meter. One fixed price, £69. The check covers every gas appliance, the meter and the pipework in the property.
Please choose the number of appliances.
Please enter your name.
Please enter a valid UK phone number.
Please enter a valid email address.
Your certificate is emailed here.
Check your email for the details. One of our team will call you within 15 minutes to confirm your appointment.
All Landlord Certificates provides domestic Gas Safety Certificates (CP12) for a fixed price of £69. The price covers 1, 2, 3 or 4 gas appliances plus the gas meter. Available to landlords and homeowners. Carried out by Gas Safe registered engineers.
Council leaseholders who sublet
Subletting your Westminster council flat? The gas duty is yours, not the council's.
Licensed private landlords
In one of the 15 selective wards, or running an HMO? Get the record your licence file needs.
Short-let and holiday-let owners
Letting short-term? Landlord gas duties still apply. Here's what you need.
Council tenants
Westminster arranges and pays for your annual gas check. Contact the council, not us.
What Is a Gas Safety Certificate in Westminster?
A Gas Safety Certificate (CP12), known as a Landlord Gas Safety Record, is the record a Gas Safe registered engineer issues after the annual safety check of the gas appliances and flues a landlord provides. In Westminster, this duty also covers council leaseholders who sublet, short-let and holiday-let operators, and private landlords covered by the borough's selective and HMO licensing schemes.
Gas Safety Rules at a Glance
Annual checks
Arrange an inspection every 12 months with a Gas Safe registered engineer under Regulation 36 of the Gas Safety (Installation and Use) Regulations 1998.
Early renewal
Complete the check within the two months before the due date to retain the original expiry date.
Tenant copies
Provide existing tenants with a copy within 28 days of the check and new tenants with a copy before they move in.
Record keeping
Keep each gas safety record until two further checks are completed, with a minimum retention period of two years.
Is a Gas Safety Certificate a Legal Requirement in Westminster?
Yes, every Westminster landlord providing gas appliances, including council leaseholders who sublet, needs an annual gas safety check under Regulation 36 of the Gas Safety (Installation and Use) Regulations 1998. Landlords must give tenants a copy of the record. Westminster's selective licensing across 15 wards and borough-wide additional HMO licensing also makes CP12 records essential for many private landlords.
Who Can Issue One and How to Check the Engineer
Only a Gas Safe registered engineer can issue a landlord gas safety record. Check the engineer's registration on the official Gas Safe Register and confirm their qualifications cover your property's gas appliances. You can also verify your assigned ALC engineer before the inspection.
Why Gas Safety Compliance Works Differently in Westminster
Westminster has England's highest share of private rentals, with many council leaseholders and short-let operators. Its property types and licensing schemes create specific gas safety requirements. Five things make gas safety compliance in Westminster different:
What Makes Westminster Gas Compliance Different
1
Council leaseholders who sublet
Westminster City Council requires leaseholders who sublet to meet landlord gas safety duties. A Gas Safe-registered engineer must complete an annual check, and records must be kept for at least two years. Tenants need a copy within 28 days, and new tenants need one before moving in.
2
High levels of private renting
ONS figures for 2021 show that 41% of Westminster's dwellings were privately rented, the highest share of any English local authority. The council estimates more than 56,000 private rented homes across the borough.
3
Two licensing schemes
Selective licensing began on 24 November 2025 across 15 wards. Borough-wide additional HMO licensing began on 31 August 2026. Landlords must check the rules for their property and keep the required gas safety records.
4
Short lets need gas safety checks
Gas safety duties also apply to rented holiday accommodation. Westminster landlords providing gas appliances in short-let properties need annual checks, regardless of how many nights the property is rented.
5
Some flats have no gas appliances
Westminster's Pimlico District Heating Undertaking supplies heat to more than 3,000 homes. Flats using this network for heating and hot water, with no gas appliances, do not need an annual gas safety check.
Westminster Gas Safety Facts
- 41% of dwellings were privately rented in 2021.
- 15 wards entered selective licensing in November 2025, with additional HMO licensing across the borough from August 2026.
- Over 3,000 homes receive heat from the Pimlico District Heating Undertaking.
How Gas Safety Checks Work for Westminster Landlords
If You Sublet a Westminster Council Flat
Westminster Council checks gas appliances in its own rental homes and maintains communal flues. Leaseholders who rent out their flats must arrange annual gas checks, keep records for two years, give tenants a copy within 28 days, and provide new tenants with a copy before moving in.
Access in Mansion Blocks and Managed Buildings
Westminster has mansion flats, managed blocks, and homes above commercial premises. Before booking, confirm who holds the keys and if a porter, building manager, or managing agent needs advance notice. Clear access arrangements help prevent missed appointments, extra costs, and delays to the gas safety check.
Short Lets and Holiday Lets
In London, temporary sleeping accommodation in a residential property beyond 90 nights per calendar year requires planning permission. Separately, HSE landlord gas safety duties cover rented holiday accommodation. A short-let flat with a landlord-provided gas appliance needs an annual gas safety check, regardless of the 90-night planning limit.
Our Four Step Process
STEP 1
Book Online or Call
Enter your Westminster postcode and the number of gas appliances. Receive a fixed price for your gas safety check, with your booking details recorded for your property.
Engineer Visit
A Gas Safe registered engineer checks each landlord-provided gas appliance and the flue, explains any access requirements, and shows their Gas Safe ID card on arrival.
STEP 2
Record completed
The record lists each appliance, inspection result, and defect. It includes immediately dangerous or at-risk classifications where applicable.
STEP 3
Digital CP12 within 24 hour
Your gas safety record arrives by email within 24 hours, ready to forward to your sub-tenant or add to your property license file for record-keeping.
STEP 4
What's Checked on a Westminster Gas Safety Check and What Isn't
A Westminster gas safety check covers landlord-provided gas appliances, their flues, ventilation, safety devices, and combustion performance.
Covered by the gas safety check
NOT covered by the annual check
If the Engineer Finds a Defect
The engineer records each fault as Immediately Dangerous (ID) or At Risk (AR). With your permission, they disconnect an unsafe appliance to protect occupants. Your gas safety record lists each fault clearly, and repair costs are quoted separately for your approval.
Pipework and Carbon Monoxide Alarms
Installation pipework needs ongoing maintenance but falls outside the annual gas safety check. ALC carries out tightness tests and visual inspections as good practice. Under SI 2022/707, a carbon monoxide alarm is required in each living room with a fixed combustion appliance, except a gas cooker. This rule took effect on 1 October 2022.
How Much Does a Gas Safety Certificate Cost in Westminster?
The fixed price for a domestic Gas Safety Certificate (CP12) is £69 for up to four gas appliances and the gas meter. The price stays the same for a boiler alone or a boiler, hob, oven, and fire.
| Service | Price | What's included |
|---|---|---|
Gas Safety Certificate (CP12) |
£69 |
Up to four gas appliances plus the gas meter. Total fixed price, not a per-appliance charge. |
Five or more appliances |
Confirmed before the visit |
Price confirmed before the visit |
Gas + EPC |
£148 |
CP12 and Energy Performance Certificate in one visit. |
Complete Compliance |
£330 |
Gas, EPC, EICR and PAT testing in one booking. |
What affects the quote
More than four gas appliances or more than one meter? We confirm the price before the visit.
Number of gas appliances
Property type
Access arrangements
Remedial work
Gas Safety, Licensing and Short Lets in Westminster
What the Law Requires
Regulation 36 of GSIUR 1998 requires an annual check by a Gas Safe registered engineer on landlord-provided appliances and flues. Keep records until two further checks are completed. Give existing tenants a copy within 28 days and new tenants a copy before they move in.
Who Counts as a Landlord Here
HSE guidance covers people who rent out property they own under a lease shorter than seven years or a licence. These duties also cover rented holiday accommodation. A tenant who sublets their rented home does not take on the gas safety duties under Regulation 36. Responsibility stays with their landlord. A leaseholder who rents out their own flat holds the landlord duties for covered gas appliances.
Carbon Monoxide Alarms
A carbon monoxide alarm is required in living accommodation containing a fixed combustion appliance, such as a gas boiler or fire. Rooms with only a gas cooker are excluded. The amended rules took effect on 1 October 2022.
2026 Update: Section 21 and the Landlord Register
Section 21 ended on 1 May 2026 under the Renters’ Rights Act 2025. National PRS Database registrations open on 15 December 2026.
Westminster Property Types We Cover
Council Leaseholders Who Sublet
Leaseholders renting out flats in Westminster must meet gas safety duties under GSIUR 1998. Gas safety certification in Westminster includes an annual check by a Gas Safe registered engineer. Keep records for two years, give tenants a copy within 28 days, and provide new tenants with a copy before moving in.
Short Lets and Holiday Lets
London planning rules set a 90-night annual limit for short lets without planning permission. Rented holiday homes with landlord-provided gas appliances need an annual check. A gas safety report in Westminster records the inspection results for the owner and occupiers. The owner's legal duties remain unless the agent holds the lease as landlord under the law.
Mansion Blocks, Conversions and Listed Buildings
Belgravia, Pimlico, Maida Vale and Bayswater feature period homes and mansion blocks. Gas certificates Westminster record appliance safety, but listed building consent and planning rules affect external flue changes and boiler relocations. These restrictions affect available repair options.
Pimlico and the District Heating Network
Pimlico's council-owned district heating network has supplied heat since 1950 to more than 3,000 homes. Flats receiving heat and hot water from the network, with no gas appliance or flue, fall outside the annual check duty under Regulation 36. A gas cooker or hob still needs inspection. Gas safety certified in Westminster checks cover landlord-provided gas appliances.
Flats Above Shops and Mixed-Use Buildings
The West End, Marylebone and Victoria have flats above shops, restaurants and offices. A domestic gas safety check covers landlord-provided appliances and flues serving the residential property. Gas equipment serving a commercial unit needs separate non-domestic safety checks and records. Identify the appliances serving the flat before booking an inspection.
Gas Safety for Westminster Council Leaseholders Who Sublet
Westminster leaseholders who sublet their flats must meet landlord gas safety duties and provide valid safety records to tenants.
- Arrange annual gas safety checks with a Gas Safe registered engineer.
- Keep gas appliances, flues and relevant pipework safe.
- Retain gas safety records for at least two years.
- Give existing tenants a copy within 28 days of the check.
- Provide new tenants with a copy before they move in.
- Check where responsibility for the flat ends and communal heating begins.
- Use the two-month early-check window to manage renewals for rolling tenancies.
Gas Safety for Westminster Short Lets and Holiday Lets
Westminster holiday lets must meet gas safety duties separately from London’s 90-night planning limit.
- London short lets have a 90-night annual limit without planning permission under the Greater London Council (General Powers) Act 1973.
- Landlord-provided gas appliances and flues require annual safety checks.
- Meeting the 90-night limit does not remove gas safety requirements.
- Landlords remain responsible for legal duties when a management company handles bookings.
- Display the gas safety record prominently for short stays under 28 days.
- Retain gas safety records and arrange checks every 12 months.
Gas Safety for Supported Living Providers in Westminster
Supported living providers who lease homes must understand their gas safety duties and coordinate annual checks with residents and support staff.
- Landlords remain responsible for required gas safety checks in properties they rent out.
- Arrange annual inspections with a Gas Safe registered engineer.
- Coordinate access with residents and support staff before each visit.
- Keep gas safety records for each property.
- Share relevant records with commissioners when required.
- Report faults promptly and arrange necessary repairs.
- Keep inspection dates organised across all supported properties.
Areas and Postcodes We Cover Westminster
W1D
W2
W9
W10
W1H
SW1
WC1
NW8
Queen's Park
Harrow Road
Maida Vale
Abbey Road
Regent's Park
Church Street
Little Venice
Westbourne
Bayswater
Marylebone
Hyde Park
West End
Lancaster Gate
St James's
Knightsbridge & Belgravia
Pimlico North
Vincent Square
Pimlico South
Trusted by Landlords Across London
Why Westminster Landlords Choose All Landlord Certificates
All Landlord Certificates uses Gas Safe registered engineers for landlord gas safety checks across Westminster. Landlords receive the required gas safety record, with EICR inspections and PAT testing available through one booking.
4.8 Trustpilot rating
Digital CP12 within 24 hours of the completed check
Tenant copies sent automatically
Fixed £69 price for up to four gas appliances plus the meter
Gas, EPC, EICR and PAT testing in one booking
Several properties covered in one booking
12,000+ Certificates issued
For Westminster rental properties, the gas safety record lists each landlord-provided appliance and flue. Landlords receive the document for their records, and tenant copies are sent automatically.
Westminster Gas Safety Certificate FAQs
I sublet my Westminster council flat. Do I need a gas safety certificate?
Yes. Leaseholders who sublet a Westminster council flat must arrange an annual Gas Safe check, keep records for two years, give tenants a copy within 28 days, and provide new tenants with a copy before they move in.
Do I need a gas safety certificate for a short let or Airbnb in Westminster?
Yes, if the property has a landlord-provided gas appliance.
- HSE duties apply to holiday lets and short lets.
- Landlord-provided gas appliances require annual safety checks.
- London’s 90-night limit does not affect this requirement.
How much does a gas safety certificate cost in Westminster?
A gas safety certificate in Westminster costs £69 for up to four appliances, including the meter. CP12 arrives within 24 hours. 5+ appliances require a quote. Gas safety + EPC costs £148.
My Pimlico flat is on the district heating network. Do I still need a CP12?
No, if your Pimlico flat has no landlord-provided gas appliances or flues. Gas cookers and hobs still require annual safety checks. Communal heating does not cover individual gas appliances inside your flat.
Does selective licensing apply to my Westminster property?
Westminster’s selective licensing scheme covers 15 of 18 wards from 24 November 2025 to 23 November 2030. Pimlico South, St James’s, and Vincent Square are excluded, but HMO licensing still applies.
Which postcodes and areas do you cover in Westminster?
Our service covers W1, SW1, and NW8, plus parts of W2, W9, W10, NW1, and WC2. Areas include Marylebone, Mayfair, Pimlico, Belgravia, Victoria, Bayswater, Paddington, Maida Vale, and St John’s Wood. Some postcode districts cross borough boundaries, so the property’s location determines coverage.
What happens if the engineer finds a defect?
The engineer labels faults as Immediately Dangerous (ID) or At Risk (AR). With your permission, they disconnect unsafe appliances. The gas safety record lists each fault. Repairs and replacement parts require a separate quote.
What is included in a gas safety certificate inspection in Westminster?
- A Gas Safe registered engineer checks gas appliances, flues, ventilation and safety devices.
- The engineer records each appliance and any defects.
- Repairs, replacement parts, pipework maintenance and full boiler servicing cost extra.
Official Gas Safety Guidance and Sources
Check official guidance for landlord duties, property licensing, gas safety requirements and engineer registration. These sources explain legal requirements and local authority rules for Westminster properties.
Westminster City Council: Leaseholder Gas Safety Guidance
westminster.gov.uk
Westminster City Council: Property Licensing
westminster.gov.uk
HSE: Gas Safety for Landlords
hse.gov.uk
Gas Safety Regulations 1998
legislation.gov.uk
Gas Safe Register
hse.gov.uk
Smoke and Carbon Monoxide Alarm Regulations
legislation.gov.uk
Book Your Westminster Gas Safety Certificate
Book your Westminster gas safety certificate online in two minutes for £69, covering up to four gas appliances and the meter. A Gas Safe registered engineer completes the check, with your digital CP12 emailed within 24 hours.