Landlord Gas Safety Certificates in Hertfordshire & London
At C A Waters Plumbing & Heating, we provide fast, compliant Landlord Gas Safety Certificates (CP12s) for rental properties across Hertfordshire and London. Whether you manage one property or a full portfolio, our Gas Safe registered engineers carry out professional inspections and issue valid certificates the same day. With hundreds of reviews across Google, Which?, and Nextdoor, landlords trust us for reliable, hassle-free compliance — every time.
What Is a Landlord Gas Safety Certificate?
By law, landlords must ensure all gas appliances, pipework, and flues in their rental property are inspected annually by a
Gas Safe registered engineer. After the inspection, a
Gas Safety Certificate (CP12) is issued to prove the property is safe and legally compliant.
What’s Included in the Inspection
Our Gas Safety checks cover:
- All gas appliances (boiler, hob, fire, etc.)
- Pipework and flue safety
- Ventilation and carbon monoxide risks
- Appliance condition and pressure testing
- Full compliance with the latest Gas Safety regulations
Once complete, we provide a digital CP12 certificate for your records and your tenant.
Same-Day Certificates Across Hertfordshire & London
We cover all of
Hertfordshire including:
St Albans, Watford, Hemel Hempstead, Potters Bar, Harpenden, Hertford, and more.
We also serve all of London, including:
Barnet, Enfield, Finchley, Harrow, North London and Greater London areas.
Pricing for Landlord Certificates
We offer clear, competitive pricing for CP12s, with multi-property and repeat inspection discounts available.
- 1 Property (Gas Boiler + Hob): from £75 + VAT
- Additional appliances: from £15 each
- Portfolio & letting agent pricing: available on request
We can also combine inspections with boiler servicing for convenience.
Recent Landlord Client
A letting agent in Harpenden booked us to carry out certificates for 4 flats in the same block. We completed all inspections and issued same-day CP12s electronically, saving them time and admin while ensuring legal compliance across all units.
Book Your Gas Safety Certificate
To book your Gas Safety inspection, contact us directly:
