Power Flushing

Central heating system cleaning service to remove sludge, rust, and debris for improved efficiency.

Gas Safe Registered
Quality Workmanship
Same-Day Service

Is your central heating system slow to heat up, with cold spots on radiators? Power flushing removes years of built-up sludge, rust, and debris from your heating system, restoring efficiency and performance. Highly recommended before installing a new boiler to protect your investment. If you're experiencing heating issues, we also offer radiator installation and system repairs.

Pricing: £400 - £800

Benefits of Power Flushing Your Heating System

Removes sludge, rust, and debris blocking your system

Improves heating efficiency and reduces energy bills

Eliminates cold spots on radiators

Reduces boiler noise and kettling

Extends boiler lifespan and prevents breakdowns

Essential before new boiler installation

Professional equipment and trained engineers

Magnetic filter installation included

Our Power Flushing Process

1

System Assessment

We inspect your heating system, check water quality, and assess the level of contamination to determine if power flushing is suitable.

2

Connect Power Flush Machine

We connect our professional power flushing equipment to your heating system, typically at the circulation pump location.

3

Chemical Cleaning

We circulate cleaning chemicals through the system at high velocity to break down sludge and remove scale deposits.

4

Radiator Flushing

Each radiator is individually flushed to remove contamination. We reverse flow direction to dislodge stubborn deposits.

5

System Rinse & Neutralize

We thoroughly rinse the system with clean water until it runs clear, then neutralize with fresh water.

6

Inhibitor & Magnetic Filter

We add corrosion inhibitor to protect your system and install a magnetic filter to catch future debris.

7

Testing & Commissioning

We test the system, balance radiators, and ensure everything is heating efficiently.

Power Flushing Costs

Our power flushing prices depend on the number of radiators in your system. All prices include chemicals, inhibitor, and a magnetic filter.

Small System (Up to 6 radiators)

From £400

  • Full power flush
  • Cleaning chemicals
  • System inhibitor
  • Magnetic filter
  • Radiator balancing
  • System testing

Medium System (7-10 radiators)

From £550

  • Full power flush
  • Cleaning chemicals
  • System inhibitor
  • Magnetic filter
  • Radiator balancing
  • System testing

Large System (11+ radiators)

From £700

  • Full power flush
  • Cleaning chemicals
  • System inhibitor
  • Magnetic filter
  • Radiator balancing
  • System testing

Signs You Need a Power Flush

Cold spots at bottom of radiators

This indicates sludge buildup preventing hot water circulation. Power flushing removes the sludge and restores full heat distribution.

Some radiators don't heat up properly

Blockages in pipework prevent hot water reaching certain radiators. Power flushing clears these blockages throughout the system.

Boiler making loud banging or kettling noises

Limescale and sludge cause boiler overheating and noise. Power flushing removes deposits and protects your boiler.

System takes ages to heat up

Contaminated water reduces system efficiency. Clean water after power flushing heats faster and costs less to run.

Frequent boiler breakdowns

Sludge damages boiler components. Power flushing before a new boiler installation protects your investment and warranty.

Frequently Asked Questions

What is power flushing?

Power flushing is a cleaning process that removes sludge, rust, and debris from your central heating system using specialist equipment and chemicals pumped at high velocity through the pipes and radiators.

How long does power flushing take?

Most power flushes take 4-8 hours depending on system size and contamination levels. We complete most in one day.

Do I need a power flush before a new boiler?

Yes, highly recommended! Installing a new boiler on a dirty system voids warranties and reduces lifespan. Most manufacturers require power flushing.

How often should I power flush my system?

Typically every 5-6 years, or when you notice signs of sludge buildup. A magnetic filter helps reduce the need for frequent power flushing.

Is power flushing messy?

No, the process is contained within your heating system. We protect your property and clean up after ourselves.

Will power flushing fix my boiler problems?

Power flushing improves system efficiency but won't fix faulty boiler components. We'll advise if additional repairs are needed.

Can all systems be power flushed?

Most can, but very old systems with thin pipes may not be suitable. We'll assess your system first and advise alternatives if needed.

What's the difference between power flushing and a chemical flush?

Power flushing uses specialist equipment for high-velocity cleaning. Chemical flushes are less effective and may not remove stubborn sludge.

Will I have heating during the power flush?

No, your heating will be off while we work. We aim to complete the work in one day to minimize disruption.

Ready to Book Power Flushing?

Schedule a convenient time for our Gas Safe registered engineers to visit.

Call 01493 295 064

Serving Great Yarmouth, Norwich, Lowestoft, and all of Norfolk