Sentinel Leak Sealer 1L

By Sentinel Product code: 87634 Pack size: Each

£14.98 Exc. VAT £12.48
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Product Details

Ideal for sealing small leaks or weeping joints on all types of indirect central heating systems. Easy-to-administer solution and will not cause blockages within the system.

Technical Specification
Brand Sentinel
Safety Data Sheet click here
Type
Type Does Not Apply
Volume (L) 1
Delivery details


Covid-19 Update

  • FREE Next Business Day delivery is available for orders over £25 for orders placed before 9pm Mon-Thur and before 6pm Sunday
  • Saturday and Sunday delivery is available for orders placed before 6pm on Friday for Saturday Delivery and 4pm Saturday for Sunday delivery. Items over 30kg can only be delivered next Business Day Mon-Fri. Orders placed after 9pm Thursday will be delivered the following Monday see here for details
  • Pre-12 delivery service is now available for weekday deliveries. Place your order before 9pm Mon-Thur for next business day delivery by 12pm. Orders placed after 9pm Thur and before 6pm Sunday will be delivered by 12pm Monday. UK mainland only
  • 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
  • Delivery direct from suppliers is 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 Mon-Fri (order by 9pm Mon-Thur & Sun by 6pm) delivered before 6pm £5 Free Free
Pre-12 Delivery Mon-Fri (order by 9pm Mon-Thur & Sun by 6pm) delivered before 12pm next day £10 £5 £5
Remote areas standard delivery (2-4 days) £5 Free Free
Saturday Delivery (order by 6pm Friday) delivered before 6pm £10 £5 Free
Sunday Delivery (order by 4pm Saturday) delivered before 6pm £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

We are fully open and delighted to welcome our customers into our branches.

Our opening times are 7am-8pm Monday-Friday, 7am-7pm Saturday and 9-4pm Sunday

Our speedy 5 min Click and Collect service remains one of the safest ways to buy from us and minimises your time in store. Place your order at toolstation.com 7 days a week, and travel to store once your collection confirmation is received by email or text message.





Don’t forget your mobile number – Please ensure that your mobile number is added so that we can text you when your order is ready to collect.

Your items will be held at your selected Toolstation branch for 14 days, after which point your order will be put back to stock and refunded automatically.

Reviews
Sentinel Leak Sealer 1L is rated 4.6 out of 5 by 26.
Rated 5 out of 5 by from Sealed Small Radiator Leak Poured into radiator which had a small leak using a hose and a funnel via the air vent hole. Refilled the system ran it and the leak was sealed. No problem. Cost effective and value for money.
Date published: 2021-03-16
Rated 5 out of 5 by from Pressure loss problem on combo boiler Did the job sealed my system as I didn’t know where my leak was coming from
Date published: 2021-02-17
Rated 5 out of 5 by from excellent product for a reasonable price i have 15 radiator heating system with copper and PVC pipes. i was having dropped pressure issues for few months which got worse over last couple of months. The system would loose pressure every week and half or so. I added the leak sealer via towel rail, about 3 weeks ago. i have not lost any pressure since then. The pressure seem to go a bit too high initially after adding the sealer but have not stabalised now. a really good product.
Date published: 2021-02-15
Rated 5 out of 5 by from Heating Engineer Used this many times and never had a call-back, wouldn't use anything else, perfect for weeping joints and leaking rad valves anywhere on the system.
Date published: 2021-01-29
Rated 5 out of 5 by from Easy to add to systems Easy to add to a drained system, was a bit sludgier to add than a product such as X100 but presented no challenges to do so. Would recommend.
Date published: 2020-12-27
Rated 5 out of 5 by from Works well!! Tried other leak sealers - this actually works!!
Date published: 2020-08-02
Rated 5 out of 5 by from Excellant product I bought this to stop a leak in my central heating system,and after 2months no leaks .Hope this continuse.
Date published: 2020-07-11
Rated 5 out of 5 by from ? Best product ever,cheaper than anywhere else
Date published: 2020-06-09
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