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Power Flushing Β· Exeter & Devon

Cold radiators?
We restore your heating in a single day.

Magnetite sludge silently kills your boiler and runs your bills sky-high. Our power flushing service in Exeter clears the system completely β€” guaranteed β€” so every radiator gets hot, top to bottom.

  • Same-week appointments across Exeter
  • Gas Safe registered engineers
  • Boiler warranty protection
  • Fixed-price quotes β€” no surprises
  • Magnaclean filter installed
  • 5-year workmanship guarantee

Get a Same-Day Callback

A real engineer will call you within 30 minutes during working hours.

πŸ”’ We never share your details. No call-centre.

4.6/5
Excellent on Trustpilot
Β£395
Starting Price + VAT
5yr
Workmanship Guarantee
When You Need a Power Flush

Six signs your heating system is full of sludge.

If any of these sound familiar, your radiators and boiler are working twice as hard for half the heat. A power flush usually pays for itself within 18 months in lower energy bills alone.

No. 01

Cold patches on radiators

Especially at the bottom β€” that's classic magnetite sludge collecting where the water can't reach.

No. 02

Banging or kettling boiler

Strange noises mean restricted flow. Ignore it and you're shopping for a new boiler within a year.

No. 03

Slow to warm up

If your house takes 45 minutes to feel warm, your system is working at a fraction of its efficiency.

No. 04

Black or rusty water

Bleed a radiator. If the water is dark, your system is corroding from the inside out.

No. 05

Frequent boiler breakdowns

Sludge causes pump and heat-exchanger failures. A flush often eliminates repeat call-outs.

No. 06

New boiler being fitted

Most manufacturer warranties (Worcester, Vaillant, Ideal) require a power flush before installation.

Our Process

A proper flush, done in one day.

01

Free survey

We assess your system, count rads, and give you a fixed price. No obligation.

02

Connect & cleanse

Industrial flushing pump connected, chemical cleanser added to break down sludge.

03

Flush every rad

Each radiator individually flushed at high pressure until water runs crystal clear.

04

Inhibit & protect

System dosed with corrosion inhibitor, Magnaclean fitted, full report issued.

Transparent Pricing

Fixed prices. No surprises.

Every job includes pre-flush chemical cleanser, full system flush, corrosion inhibitor, Magnaclean filter installed, and a full written report β€” usually completed in 4–6 hours. All prices exclude VAT.

Up to 6 radiators
Β£395
+ VAT
  • Full system power flush
  • Magnaclean filter fitted
  • Corrosion inhibitor included
  • 5-year workmanship guarantee
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13+ radiators
Β£645
+ VAT
  • Twin-pump flush for tough sludge
  • Underfloor heating compatible
  • 5-year workmanship guarantee
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From Our Customers

Heating restored. Bills down.

Don't take our word for it β€” read verified reviews from real customers across Exeter and Devon on Trustpilot.

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Areas We Cover

Local engineers, local response.

Based in Exeter with engineers across Devon. Most jobs booked within 3 working days.

ExeterEX1–EX4
ExmouthEX8
TopshamEX3
CullomptonEX15
TivertonEX16
CreditonEX17
HonitonEX14
SidmouthEX10
Ottery St MaryEX11
DawlishEX7
BudleighEX9
Newton AbbotTQ12
Common Questions

Power flushing, explained.

How long does a power flush take?

For a typical 3-bed semi in Exeter with around 8 radiators, expect 4–6 hours from start to finish. Larger properties or systems with severe sludge can take a full day. We always finish in one visit β€” no leaving you without heating overnight.

How much does a power flush cost in Exeter?

Our prices start at Β£395 for up to 6 radiators, Β£495 for a typical 7–12 radiator family home, and Β£645 for larger properties with 13+ radiators (all prices exclude VAT). The price is fixed before we start β€” no hourly billing, no surprise extras. All jobs include Magnaclean filter, inhibitor, and a 5-year guarantee.

Will it really lower my energy bills?

Yes β€” a sludge-clogged system can be 25–30% less efficient. Most customers see a noticeable difference in heating speed and gas usage within the first month. The Energy Saving Trust estimates a properly maintained heating system saves the average UK home Β£100–£250 per year.

Do I need a power flush before fitting a new boiler?

Almost certainly. Worcester Bosch, Vaillant, Ideal, and Baxi all require proof of system cleanse before honouring their warranties on new boilers. We provide a full written report you can send to your installer or manufacturer.

Is this disruptive? Will I have heating that night?

Minimal disruption. We work from one access point, lay protective sheets, and clean up fully. Heating is back on the same day β€” usually within 5 minutes of finishing the flush.

What if a power flush doesn't fix the problem?

In rare cases (typically very old systems with corroded radiators), a flush alone won't restore full heat. We'll always tell you upfront if we suspect this during the survey. If we recommend a flush and it doesn't deliver, we revisit free β€” that's covered by our 5-year guarantee.

Cold radiators? Let's fix it this week.

Free quotes by phone in under 5 minutes. No pushy sales β€” just a real engineer giving you a real price.

Open Mon–Fri Β· 8am–6pm Β· Gas Safe Reg. No. 594382