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COVID-19 UPDATES. Click here for details.
£12.98 Exc. VAT £10.82
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Product Details

Solution to reduce boiler noise whilst simultaneously helping to restore boiler efficiency

Technical Specification
Brand Sentinel
Safety Data Sheet click here
Volume (L) 1
Delivery details

Covid-19 Update

  • Free Next Business Day delivery for orders over £25 to home and site is available for orders placed before 5pm
  • Saturday and Sunday delivery is now available for orders placed before 4pm on Friday for Saturday delivery and 4pm Saturday for Sunday delivery, see here for details
  • We have temporarily suspended our Pre-12 delivery service
  • Once your order has been dispatched you will receive an invoice email with the courier details and your tracking number
  • Alternatively go to MyAccount, click on your Order History, click on the TRACK icon to link through to the carrier website and the tracking details for your delivery
  • If your order contains more than one item it may be split into two deliveries as we manage volume across our network
  • Due to carrier constraints it is not currently possible to deliver age restricted items. Please use our Click & Collect service for these products
  • Delivery direct from suppliers is now available and specific delivery times will be displayed on the product page
Order Value: Under £25 Over £25 but less than £75 £75 & Over
Next Business Day Delivery (Mon-Fri) usually before 6pm £5 Free Free
Pre-12 Delivery before 12 noon Next Business Day £10 £5 £5
Remote areas standard delivery (2-4 days) £5 Free Free
Saturday Delivery order by 4pm Friday £10 £5 Free
Sunday Delivery order by 4pm Saturday £10 £5 Free


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

More about Delivery & Returns
Click & Collect details

Covid 19 Update

Click & Collect

  • Safe contactless collection is available 7 days a week at our branches
  • Our branches are open 7am-5pm Mon-Sat and 9am-4pm Sun
  • Keeping our colleagues and customers safe and well and respecting stringent social distancing requirements is our number one priority – 2 metre rule enforced
  • Our available product range will not require more than 1 person to lift
  • Please see our guide to click and collect below

  • Please ensure that your mobile number is added so that we can text you when your order is ready to collect

Call & Collect

Due to current trading conditions we have suspended our Call & Collect service until further notice.

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 7pm 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.
Reviews
Sentinel Boiler Noise Reducer 1L is rated 4.9 out of 5 by 16.
Rated 5 out of 5 by from Trusted product at a good price Trusted product, great price, easy ordering/collecting
Date published: 2020-05-23
Rated 5 out of 5 by from Great Product - Does the Job! Added to header tank in loft and it worked incredibly quickly and effectively.
Date published: 2020-03-16
Rated 5 out of 5 by from Sentinel is by far the best products to use Cleaned system with x400 for 2 weeks, drained down and refilled with x100 and added this in too. System now better than ever. Nice and quiet too.
Date published: 2020-02-03
Rated 5 out of 5 by from Great service Very speedy delivery, very convenient.
Date published: 2020-01-28
Rated 5 out of 5 by from Kettling boiler sorted Once put into the heating system, it took a couple of hours to notice any difference. But definitely works
Date published: 2020-01-26
Rated 5 out of 5 by from As always Sentinel products work! Made my system nice and quiet
Date published: 2020-01-22
Rated 5 out of 5 by from Boiler noise reduced Used this after draining and flushing. Cleaned the tank out manually also. Worked straight away, 80% better. Have used this before and eventually the noise came back after 6 or 7 months.At the minute just pleased not to have a banging boiler! At a much cheaper price than competitors.
Date published: 2020-01-14
Rated 5 out of 5 by from Does what it says on the tin, fantastic! Boiler was practically silent within the hour, great stuff, wish I'd found it sooner would have saved me a call out fee.
Date published: 2020-01-06
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