Navien boiler repair and servicing in London

Navien boilers

Navien is best known for combis with unusually high hot water flow rates, which makes them a sensible answer in a property that wants combi simplicity but has more demand than a typical combi handles. Navien also produce oil boilers; we cover the gas range only.

What we see on Navien boilers

• High-output combis specified for properties with heavy hot water demand
• Controls and sensor faults rather than mechanical wear
• Installations where flow rate was the reason for the choice

These are the patterns we see across the installed base, not a diagnosis of your boiler. Faults are identified on site before anything is quoted.

Navien questions

Can a Navien combi really run two showers?

The higher-output models deliver considerably more flow than a standard combi, but the honest answer depends on your incoming mains supply as much as the boiler. If the mains cannot deliver the flow, no combi can. We measure the incoming supply before recommending one.

Do you repair and service Navien boilers?

Yes. Gas work is carried out by Gas Safe registered engineers, which is the legal requirement for working on any gas boiler regardless of make.