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Product Details

Cures noisy central heating and restores heating efficiency. Dosage 1 litre (or 500ml of concentrate) to 100 litres system volume.

Technical Specification
Brand Corgi
Safety Data Sheet click here
Volume (L) 1
Delivery details
Order value: Under £10 £10 & over
Express usually Next Business Day before 6pm £5 Free
Turbo usually Next Business Day before 12 noon £10 £5
Remote areas standard delivery (2-4 days) £5 Free
Order Value: Under £25 Over £25 but less than £75 £75 & Over
£10 £5 Free

Please note items delivered by our suppliers are not available for the options above. Delivery times may vary.

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Click & Collect details
If you are using our Click & Collect service please note the following:
  • Order online or over the phone and collect in branch from 5 minutes later.
  • Ensure you check stock is available for collection at your chosen branch.
  • Check branch opening hours to ensure you have sufficient time to collect.
  • For items not available for same day collection, place order before 9pm Mon-Fri (4pm Sun) and you can collect Next Business Day (Mon-Fri) after 3pm.
  • If we have your mobile number, we’ll send you a text when your order is ready to collect.
Corgi Boiler Noise Silencer 1L is rated 4.0 out of 5 by 13.
Rated 1 out of 5 by from Useless Added via my header tank with their inhibitor only to find a horrible gelatinous scum a few days later which I had to fish out. Complained to their technical department and they said I needed to draw some of the system water off to get it to mix. I did that be draining my header tank into the system. Now it makes more noise than it did before !!!!
Date published: 2019-01-28
Rated 5 out of 5 by from Had My Doubts! Having listened to a clunking central heating boiler for the last 12 months I decided to try an inhibitor to silence the constant kettling. I was sceptical anything would work but decided to try 2 bottles of Corgi Boiler Silencer. After draining my system down I added it to the empty F&E tank.& within a week I noticed a huge improvement to the noise levels & boiler efficiency. Very pleased with my Toolstation purchase!
Date published: 2018-11-14
Rated 5 out of 5 by from Top Drop Does exactly what it says on the tin, I added 2 bottles to an ageing old system in a guest house with 16 radiators and it worked a treat
Date published: 2018-04-22
Rated 5 out of 5 by from DOING THE JOB! Added this to my 40 year old system a couple of days ago. The boiler was "kettling" (singing loudly and knocking). Two days on and the boiler still sings (though now much more quietly) and the knocking has disappeared completely so the treatment seems effective. Can be added via radiator or header tank (depending on type of system) and, unlike some silencers/descalers, it can be left in the system indefinitely. It can also be used simultaneously with Cogi branded inhibitor.
Date published: 2018-02-22
Rated 5 out of 5 by from Just what I was looking for bought this to stop noise boiler has help to quiten the boiler down
Date published: 2018-02-14
Date published: 2018-01-08
Rated 1 out of 5 by from 2 weeks later, and still have a noisy boiler! Applied the liquid via a radiator, and disappointing after 2 weeks, the kettling noises are no better
Date published: 2017-04-30
Rated 3 out of 5 by from no difference Added to heating system 2 weeks ago has not mage any difference to NOISE
Date published: 2017-03-06
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