Replacement Boiler with Powerflush
A replacement boiler with powerflush is the practical choice when you want reliable heating and hot water, and you also want to protect the new boiler from old system sludge. The boiler is replaced, the heating circuit is thoroughly cleaned, and the system is recommissioned so it runs efficiently and consistently.
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What’s included
A boiler replacement with powerflush is designed to improve system performance and reduce the risk of early component failure caused by debris and magnetite. Typical inclusions are:
- Assessment of the existing boiler, pipework and controls, plus advice on suitable replacement options.
- Safe isolation and removal of the old boiler and any redundant components.
- Powerflush of the heating system to remove sludge and debris, working through radiators and pipework.
- Refill with clean water and the correct chemical inhibitor to help prevent future corrosion.
- Installation of the new boiler and connection to heating and hot water services.
- Commissioning, safety checks and performance testing (pressure, combustion and controls).
- Handover with operating guidance and the required compliance paperwork.
When this service is the right fit
This service is most relevant if you are replacing an ageing boiler and want the new installation to run cleanly from day one. It is also a strong fit where radiators have cold spots, the system is slow to warm up, or the water is dark when drained. Landlords and small commercial clients often choose it to reduce avoidable call-outs and help keep heating performance predictable.
How the work is carried out
Work usually starts with a site survey to confirm boiler location, flue route, system condition and any upgrades needed to controls or pipework. On the day, the old boiler is removed, the system is powerflushed using specialist equipment, then the new boiler is fitted and commissioned. Timescales vary by system size and condition, and you will be advised in advance on access needs, any radiator issues, and whether parts such as valves or filters should be upgraded.
Aftercare and ongoing performance
Once the system is running, it is checked for leaks, balanced where needed, and set up so heat is distributed evenly. You will receive the relevant certificates and commissioning records, plus clear advice on settings and basic care. For long-term efficiency and reliability, an annual boiler service is recommended, and any future radiator cold spots or noise should be addressed early.