Common Boiler Faults We Repair
Our specialist engineers are experts in diagnosing and fixing common issues with Vaillant and Ideal systems, ensuring your heating is back up and running fast.
Intermittent Heating
If your heating cuts out or isn't reaching temperature, we diagnose faulty thermostats, motorised valves, pump issues, or internal component failures.
Leaking Boilers
Water leaks can cause serious damage. We efficiently locate and repair leaks from heat exchangers, diverters, seals, or discharge pipes.
Error Codes & Noisy Systems
From 'kettling' noises to F.22 or F.75 error codes, we have the manufacturer-specific knowledge to clear faults permanently.
20+ Years of Trusted Service
Gas Safe Registered Excellence
Your safety is our priority. As Gas Safe registered engineers, we uphold the highest standards of technical excellence and safety in every repair.
Decades of Expertise
With over 20 years in the industry, South East Gas brings unparalleled experience to domestic heating systems across Essex and East London.
Vaillant & Ideal Specialists
We specialise in the repair of Vaillant and Ideal boilers, ensuring genuine parts and expert manufacturer-level knowledge.
Transparent Fixed Pricing
We believe in honest service with no hidden costs. Our fixed labour price of £140 (plus parts) provides total financial clarity for your repair.