Gas Safety Certificates for shared houses
An annual check of every gas appliance in the property — shared kitchen cooker, communal boiler, any room heaters — carried out by a Gas Safe registered engineer.
Gas Safety Certificate (CP12), explained
A Gas Safety Certificate (still widely called a CP12) confirms every gas appliance, pipe and flue you supply is safe — in a shared house that typically means a communal kitchen cooker, a shared boiler, and sometimes individual room heaters. All of it needs checking on the same annual cycle.
Every visit includes
- Inspection of shared kitchen cooker, communal boiler and any room heaters
- Pipework, flue and ventilation check across the whole property
- Carbon monoxide and gas-tightness testing
- One combined Landlord Gas Safety Record covering all appliances, issued same day
- Immediate advice if any appliance is found At Risk or Immediately Dangerous
Gas Safety Certificate prices
| Property | Price |
|---|---|
| HMO, communal boiler + cooker | £110 – £140 |
| HMO with room heaters (per extra appliance) | +£20 – £25 each |
| Single flat or house | £75 – £110 |
Prices include VAT and the certificate. One visit covers every gas appliance in the building.
Common questions
How often is this needed in an HMO?
Every 12 months without exception, same as any other rental — you can renew up to 2 months early without losing your original date.
Does this cover appliances in every room?
Yes — any gas appliance you supply anywhere in the property, communal or in a let room, needs to be on the same certificate.
What if a tenant refuses access?
Document the attempts in writing; most HMO licences require you to show reasonable effort to gain access on the anniversary date.
Can I combine this with a boiler service?
Yes, most engineers will do both on the same visit.
Also required for most HMOs
Tell us about the property
A few details and we'll come back with a fixed quote and the earliest slot, usually the same day.