Annual Gas Safety Certificates (CP12), simplified.
Gas Safe registered engineers, tenant-friendly scheduling and certificates issued within 24 hours.
UK landlords must hold a valid Gas Safety Certificate (CP12) for every gas appliance in a let property, renewed every 12 months. We make the renewal cycle invisible — we book it, we send the certificate, you stay compliant.
Suitable for landlords, estate agents, property managers and HMO operators. Why Buildex Pro: portfolio-wide scheduling, automatic renewal reminders, and a single invoice across multiple properties.
What's included
- Annual landlord Gas Safety inspection (CP12)
- Boiler service & efficiency check
- Gas hob & cooker certification
- Carbon monoxide alarm checks
- Remedial works on failed appliances
- Portfolio scheduling across properties
- Digital certificate delivery
- Automatic renewal reminders

Why property professionals choose us.
Fast response
Same-day acknowledgement and rapid mobilisation across London.
One point of contact
A single account manager from quote through to sign-off.
Vetted, qualified trades
Certified, insured tradespeople delivering consistent workmanship.
Photo-documented
Before-and-after photos on every job, ready for your records.
Common questions about gas safety.
How quickly can you start?+
Most jobs are scoped within one working day of enquiry. Routine works are typically booked in the same week; emergencies are responded to within hours.
Do you provide a written quotation?+
Yes. Every job is quoted in writing with itemised labour and materials so there are no surprises before, during or after the work.
Are your tradespeople insured and certified?+
All our tradespeople are vetted, insured and where relevant fully accredited (Gas Safe, Part-P, NICEIC). Certificates are provided on completion.
Do you cover my area?+
We cover Canary Wharf, the City, East London and the wider M25 — up to 50 miles from E14 for routine works and 24/7 for emergencies.
Get a clear, itemised quote for your gas safety job.
Tell us about the property — we typically respond with a written quotation and realistic timeline within one working day.