Vaillant Boiler Service Experts Notting Hill

 

 Vaillant Boiler Service Experts Notting Hill is a West London-based team of Gas Safe certified engineers specialising in Vaillant boiler repairs, diagnostics, and installations. Serving areas including Notting Hill, Kensington, Chiswick, and Bayswater, the company offers 24/7 emergency response, fixed pricing, and extended warranties as Vaillant Advance Installers. Learn more at vaillantboilerservice

Boiler pressure loss isn’t uncommon, especially in colder months when heating systems are under more strain. A Vaillant boiler losing pressure typically points to one of three core issues: a leak, a faulty expansion vessel, or trapped air in the system. Pressure that consistently drops below 1.0 bar will prevent your heating from operating efficiently and may eventually trigger safety shutdowns.

Vaillant models such as the ecoFIT Compact and ecoTEC Plus have built-in pressure sensors that alert users to changes. While some fluctuations are normal, especially as water heats and expands, persistent pressure loss should never be ignored.

Common Seasonal Triggers (Winter-Specific Issues)

In West London, where older pipework meets modern systems, many properties face recurring pressure issues between November and March.

“We find the majority of winter callouts for Vaillant boilers relate to system leaks made worse by contraction in cold weather,” explains a lead engineer from Vaillant Boiler Service Experts Notting Hill. “In some cases, it’s as simple as a small radiator valve leak. In others, the expansion vessel has failed completely.”

Cold weather can amplify pressure drops due to:

● External pipe freezing

● Thermal contraction in aging joints