
HIU Services in the City of London
Better Gas Plumbing & Heating supports HIU-equipped apartments and mixed-use properties in the City of London with servicing, fault diagnosis and repair. The team investigates the in-dwelling heat interface, local controls and secondary heating while accounting for the wider communal plant arrangements that often serve complex City buildings.
Gas Safe Registered | Domestic & Commercial | 24/7 Availability
— hiu Expertise
City buildings can place residential HIUs inside much larger mechanical and heat-network systems
A residential unit in a mixed-use development may receive heat from plant serving several occupancies, floors or operating schedules. When an apartment loses performance, the cause can sit at the HIU, within the dwelling, at a local branch or farther upstream in the building’s heat network.
Better Gas can assess the components accessible within the apartment and identify observations that may be relevant to facilities or building-engineering teams. This is particularly useful where responsibilities are divided between resident, landlord, managing agent and central M&E contractor.
— OUR hiu SERVICES
HIU diagnostics that fit within complex City building-services arrangements
Better Gas can investigate heating and hot-water faults, valves, actuators, sensors, strainers, heat exchangers, leaks and local controls. The engineer can also consider secondary-system behaviour and provide practical findings when a primary-side or building-services issue may need to be passed to another contractor.
— How We Work
A Technical Approach to HIU Problems
HIU faults can involve controls, valves, heat exchangers, sensors and the wider heat network. We assess the unit properly before recommending repair or replacement.

— Why better gas
Better Gas can communicate across the boundary between apartment heating and wider mechanical services
City of London properties often need more than a simple resident-facing explanation. Better Gas can describe what was tested inside the dwelling, what responded correctly and what evidence suggests a fault outside the apartment. This helps facilities teams avoid repeating the same checks and gives property managers a clearer record when responsibility moves from the HIU service visit to central plant or network maintenance.
— The Right HIU Solution
Why mixed-use operating patterns can complicate the diagnosis of an apartment heat complaint
Heat networks serving offices, retail and residential areas may change operating conditions through the day as different parts of the building call for energy. A fault that appears only at certain periods can therefore be worth comparing against wider plant behaviour rather than treating it as a constant local defect.
Better Gas can document the timing and local response of the HIU during a City visit. If the apartment equipment appears functional but available heat varies, the information can support a more targeted conversation with the building-services team.

— Areas We Serve
HIU services across the City of London and neighbouring central districts
Better Gas supports HIU systems across the City of London and nearby Barbican, Farringdon, Bank and Liverpool Street. The service is suitable for residential units, managed apartments and mixed-use developments with communal heating.
— SPEAK TO BETTER GAS
Arrange HIU fault finding in the City of London
Provide the building access process, HIU details and any facilities-team information already available. Better Gas can investigate the apartment-side system and give you a clear technical next step.
