CertNow blog
Gas safety, without the paperwork
Practical guides on CP12s, boiler services, and staying compliant — for Gas Safe engineers and the landlords they work for.
How Much Does a CP12 Cost? Gas Safety Certificate Price Guide for UK Landlords (2026)
Typical CP12 prices across the UK in 2026, what pushes the cost up or down, how combined boiler service visits are priced, and how to pay less without cutting corners.
What is a CP12? Gas Safety Certificates Explained for UK Landlords (2026)
What a CP12 (Landlord Gas Safety Record) is, why the law requires one every 12 months, what must be on it, the penalties for not having one, and how you receive yours.
How gas engineers can stop typing up certificates at night
Evening admin is the hidden cost of every CP12. How sole-trader gas engineers are finishing the certificate, the invoice, and the landlord handover before leaving site.
CP12 renewal rules: how the MOT-style 10–12 month window works
When exactly should you renew a landlord gas safety certificate? How the 2018 MOT-style rule works, why renewing early doesn't cost you cover, and how to never miss the window.