Our Services

Power Flushing

Over time, sludge builds up in your heating system, reducing efficiency and damaging components. Power flushing cleans pipes and radiators, improving heat output and extending system life.

Power Flushing

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Central heating systems accumulate sludge, magnetite, and debris as they age. This buildup clogs radiators, damages pumps, and reduces boiler efficiency. Power flushing removes these deposits and restores system performance.

The process involves connecting a high-powered pump to your system to reverse-flush pipes and radiators with pressurised water and cleaning chemicals. We monitor the water quality until it runs clear.

Power flushing is especially beneficial before boiler installation or if your radiators are cold at the bottom. It can add years to your system's life and improve heating efficiency by 20-30 percent.

Why choose us: professional-grade equipment, certified engineers who follow industry standards, full system protection, and results you can see and feel immediately.

Trusted by London homeowners

★★★★★
Our boiler stopped working on a Sunday evening. Test Plumbing was here within two hours, diagnosed the problem, and had us warm and comfortable before bed. Professional, friendly, and reasonable pricing.
Sarah M. Clapham
★★★★★
Excellent service from start to finish. They replaced our old central heating system, explained everything clearly, and the work was done with minimal disruption. They even helped us understand the new controls.
James K. Islington
★★★★★
No call-out charge, fixed price upfront, and the job was completed faster than expected. This is how trades should operate. Highly recommended.
Rebecca L. Wandsworth

Power Flushing — Frequently Asked Questions

Will power flushing damage my boiler?

No. Power flushing is safe when done by experienced engineers using proper procedures. In fact, it protects your boiler by removing damaging sludge.

How often should I have my system flushed?

Most systems benefit from flushing every 5-10 years, depending on age and water quality. We'll assess your system and recommend a schedule.

Book Power Flushing

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What's included with Power Flushing

Full system flushing with commercial equipment

Chemical cleaning of pipes and radiators

System protection additive

Efficiency testing before and after

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