If you’re a landlord in the UK, gas safety is not optional – it’s the law. The Gas Safety Certificate (CP12) is a legal requirement for all rental properties with gas appliances. Miss a step, and you could face heavy fines or worse.
At Fast Fix, we help landlords stay compliant, safe, and stress-fre
What Is a CP12?
A CP12 is a Gas Safety Record that confirms your gas appliances and systems are safe to use. It must be issued annually by a Gas Safe registered engineer, and applies to all gas appliances including:
- Boilers
- Cookers and hobs
- Gas fires
- Flues and pipework
You must give tenants a copy within 28 days of the check, or before move-in if new.
Common Mistakes That Invalidate CP12s
- Letting the certificate expire
- Using unregistered engineers
- Ignoring safety warnings
- Not giving tenants a copy
You must provide a physical or digital copy to tenants. Failure to do so is a breach of regulations.
Don’t risk being caught out. Book your CP12 check with a Gas Safe registered engineer and get same-day certification.
…. playing it the safe way is always the smart way. It’s always better to avoid unnecessary expenses later.

Consequences of Non-Compliance
- Fines of up to £6,000
- Invalid home insurance in gas-related incidents
- Prosecution if tenants are harmed
- Loss of landlord licence in many boroughs
Our Landlord Gas Safety Package
At Fast Fix, we provide:
- CP12 gas checks
- Appliance servicing
- Multi-property discounts
- Same-day digital certificate delivery
- We serve landlords across Greater London and surrounding areas.
Are you 100% sure your CP12 is valid?
Avoid fines and stress by booking a compliant Gas Safety Check today with our qualified team.