Maintenance
Magnetic Filter Installation
A magnetic filter is fitted to the central heating return pipe and captures iron oxide particles (black sludge) before they can damage your boiler's heat exchanger. Most boiler manufacturers now require a magnetic filter to maintain warranty validity. We recommend fitting one to every boiler installation.
From £149 1–2 hours Gas Safe Registered

What's Included
- Magnetic filter supply (Adey MagnaClean or Fernox TF1)
- Installation on central heating return pipework
- System inhibitor top-up
- Filter housing commissioning and leak check
- Annual cleaning schedule and advice
At a Glance
Starting Price£149
Typical Duration1–2 hours
CategoryMaintenance
QualificationGas Safe Registered
LocationCorby & Northamptonshire
Finance0% available
Frequently Asked Questions
Which magnetic filter brand do you recommend?
We fit Adey MagnaClean Professional 2 or Fernox TF1 — both are excellent. We fit MagnaClean on Worcester Bosch installations specifically as Worcester require it for their extended warranty.
How often does a magnetic filter need cleaning?
Annually — we clean the filter at each boiler service as a matter of course. On a new or recently flushed system, the filter collects very little debris.
Book Magnetic Filter Installation in Corby
Fixed price, Gas Safe engineers, next-day availability.