Gas Safe Registered · Certificate Within 24 Hours · Hillingdon
Gas Safety Certificate Hillingdon — from £64.99
Annual CP12 gas safety inspection for landlords in Hillingdon. Gas Safe registered engineers, fixed pricing, no hidden charges — certificate emailed within 24 hours.
Postcodes covered: HA4, UB3, UB10, UB4, UB8, UB7, HA6, HA5, UB9. Next-day appointments available — book online in under 3 minutes.
from£64.99
What is a Gas Safety Certificate (CP12)?
A Gas Safety Certificate, formally known as a CP12, is a document confirming that all gas appliances, flues and pipework in a rental property have been inspected by a Gas Safe Registered engineer and found to be safe. The engineer checks each appliance for correct operation, adequate ventilation, secure flue connections and correct gas pressure, and lists every appliance on the certificate along with its result.
Every private landlord in England has been legally required to hold a valid CP12 and renew it every 12 months since the Gas Safety (Installation and Use) Regulations 1998 came into force. This national duty applies in Hillingdon as it does across England, and an HMO licence can add its own conditions on top.
Gas safety in Hillingdon — local property context
Hillingdon is London's second-largest borough, covering 42 square miles, and the council says more than half of it is countryside. Heathrow Airport and RAF Northolt are both within its boundary. The council's 2025 housing tenure survey counts 113,124 residential properties across the borough, of which 29,099 are privately rented.
Private renting rose from 19.1% of households in 2011 to 25.9% in 2021, London's joint second-largest rise, the council says. In April 2025, 1,968 local landlords held LLAS accreditation. Our Gas Safe registered engineers are experienced with the boilers, gas fires and appliances typically found in properties across the HA4, UB3, UB10, UB4, UB8, UB7, HA6, HA5, UB9 postcode areas, and regularly carry out CP12 inspections across Hillingdon for private landlords, letting agents and HMO operators.
Postcodes covered in Hillingdon
HA4, UB3, UB10, UB4, UB8, UB7, HA6, HA5, UB9 and surrounding areas. Enter your full postcode during booking to confirm coverage and availability.
Gas safety in Hillingdon HMOs: a fresh certificate after a council warning
Hillingdon's additional licence conditions set a deadline the annual gas check does not. If the council notifies the licence holder of a gas safety risk, a new Gas Safe certificate must reach the council within 14 days. The certificate already on file does not answer that notice.
Property licensing in Hillingdon
London Borough of Hillingdon Designation of an Area for Additional Licensing of Houses in Multiple Occupation 2026
Additional HMO · In force
- Applies to:
- HMOs of 3 or more people forming 2 or more households that do not need a mandatory licence; section 257 converted blocks of flats are excluded
- Area:
- Whole borough
- Period:
- 24 August 2026 to 23 August 2031
Mandatory HMO licensing
Mandatory HMO · In force
- Applies to:
- HMOs of 5 or more unrelated people forming 2 or more households
- Area:
- Whole borough
- Period:
- National scheme, no end date
Checked October 2026. Schemes and fees change, so confirm the current position on the Hillingdon Council licensing page.
- Homes built before 1919
- 4.4% (London 29.1%)
- VOA 2025
- Homes built 1945 to 1972
- 25.3% (London 16.9%)
- VOA 2025
- Households in purpose-built flats
- 26.2% (London 40.3%)
- Census 2021
Sources
- Hillingdon Council: Apply for an HMO licence
- Hillingdon Council: Houses in Multiple Occupation (HMO)
- Hillingdon Council: Apply for an HMO licence
- Hillingdon Council: Additional HMO licensing scheme
- Hillingdon Council: HMO landlords' obligations
- Hillingdon Council: Additional licensing designation 2026
- Hillingdon Council: Cabinet decision on HMO licensing, 19 February 2026
- Hillingdon Council: Cabinet report on HMO licensing (February 2026)
- Hillingdon Council: Additional licensing proposal and evidence (Appendix 1)
- Hillingdon Council: Additional HMO licence conditions (Appendix 2)
- Hillingdon Council: Article 4 directions
- Hillingdon Council: HMO Select Committee report (April 2026)
- Hillingdon Council: Facts and statistics about the borough
- ONS Census 2021: TS054 Tenure (Nomis)
- ONS Census 2021: TS044 Accommodation type (Nomis)
- VOA: Council Tax Stock of Properties 2025
Gas Safety Certificate pricing in Hillingdon
Fixed pricing by number of gas appliances. The same prices apply in Hillingdon as across all other London boroughs — no London surcharge. The only location-based fee is the £20 Congestion Charge Zone addition for central London properties.
Gas Safety Certificate (CP12) — Hillingdon pricing
| Description | Price |
|---|---|
| Up to 2 Appliances (excl. boiler)Cheapest | £64.99Book |
| 3 Appliances (excl. boiler) | £74.99Book |
| Boiler Check + Service | £84.99Book |
Additional charges (where applicable)
- Parking charge if no free on-site parking is available: £10
- Properties in the London Congestion Charge Zone: £20
Want the full service page? See our full Gas Safety Certificate page →
What's included from £64.99
Every gas safety check we carry out in Hillingdon covers the complete inspection at no extra cost beyond the price shown.
- Inspection of every gas appliance — boiler, hob, cooker and gas fire
- Flue flow and spillage testing on every appliance with a flue
- Gas pressure and burner pressure checks
- Visual check of pipework, joints and fittings for leaks or damage
- Ventilation adequacy check for every gas appliance
- Gas Safe registered engineer — fully qualified and independently assessed
- Signed CP12 certificate emailed within 24 hours
- Immediate isolation of any appliance found to be unsafe
Gas Safety Certificate Hillingdon — frequently asked questions
Other landlord certificates in Hillingdon
We also cover these landlord certificates in Hillingdon:
EICR
in Hillingdon
EPC
in Hillingdon
FRA
in Hillingdon
PAT Testing
in Hillingdon
Commercial EICR
in Hillingdon
Electrical Diagnostic
in Hillingdon
Fuse Box
in Hillingdon
Emergency Lights
in Hillingdon
Commercial Gas (CP42)
in Hillingdon
Boiler Installation
in Hillingdon
Fire Safety Cert
in Hillingdon
Fire Alarm Install
in Hillingdon
Fire Door Cert
in Hillingdon
Extinguisher Testing
in Hillingdon
Commercial EPC
in Hillingdon
Asbestos Survey
in Hillingdon
Legionella
in Hillingdon
Managing an HMO in Hillingdon? See all HMO compliance certificates →
Gas Safety Certificate in nearby boroughs
We cover all 33 London boroughs. See Gas Safety Certificate pricing and booking for areas near Hillingdon:
Book your Gas Safety Certificate in Hillingdon
Book online in under 3 minutes. A Gas Safe registered engineer confirms your appointment. Certificate emailed within 24 hours.
Next-day appointments across Hillingdon and all 33 London boroughs.
Book Gas Safety Certificate in Hillingdon — from £64.99Fixed pricing. No hidden charges. Gas Safe Registered. Certificate emailed within 24 hours.