From just £85

If you're looking for the 'best' limescale inhibitor, then you've come to the right place!
From just £85, the LimeStop is the ONLY limescale inhibitor with a comprehensive money-back guarantee that it works.

LimeStop 500, 800, and 1000
Truly remarkable limescale inhibitors that are GUARANTEED to work...or your money back!

Did you know that our nearest rival (the Combimate) is almost DOUBLE the price of our LimeStop 500?*

LimeStop 500   Fit horizontal or vertical 
With wall bracket & isolating valves
LimeStop 800      Fit horizontal or vertical £89With wall bracket & isolating valves (on 15mm)
LimeStop 1000    Fit vertical on bracket     £99 Wall bracket supplied

The issue of limescale in hard water areas of England can be tackled inexpensively.  Affecting boilers, cylinders, kettles, and your mains water piping (especially the hot piping), limescale is very damaging, and expensive to the water user.  Indeed, it can cause the fairly rapid failure of appliances such as washing machines, dishwashers, and mains water cylinders - requiring replacement after just a few years.  Combination (combi) boilers are especially vulnerable.  Some consumers resort to water softeners.  However, these are expensive, they have to be constantly replenished with salt, and they should be serviced, also.  And yet there is no need of this expense.  Our range of limescale inhibitors WILL stop limescale - guaranteed - for a fraction of the cost of a water softener.

The LimeStop 500 is ideal for combination (combi) boilers.  It fits 'in-line' to your piping and comes ready-filled with 500g of Siliphos.  Two isolating valves are included.

The LimeStop 800 is our best seller, and perfect for inhibiting limescale generally throughout the smaller home.  It comes with 800g of Siliphos, and is available in either 15mm or 22mm with wall bracket and isolating valves (15mm version).

The LimeStop 1000 is for homes larger than three bedrooms, and comes with 1 kilogram of Siliphos, a wall-fixing bracket, and is available in either 15mm or 22mm.

With a LimeStop 1000 fitted, you may no longer need to add salt to your dishwasher.  Give it a try.  You may still have spots on your glassware.  If you do, start adding the salt again, but we have had reports from satisfied customers that it isn't necessary, and a rinse-aid can stop that, anyway.

FREE delivery on all our LimeStops to UK mainland addresses by Royal Mail 48 Tracked.
Sorry, we do not export our products to the EU due to their importation rules.

We GUARANTEE to give you your money back if the LimeStop doesn't work...because we know it WILL work.  That’s a true guarantee of performance, and completely unmatched by any manufacturer, anywhere.  We’ve been making limescale inhibitors for 20 years now...and we’ve never had to give anyone their money back. 

We are committed to being as Earth-friendly as is possible for any manufacturer.  Your LimeStop is manufactured from plastic and can be recycled at the end of its two-year life by simply taking it to a recycling plant, or your local council may accept it in their supplied waste (recycling) bins.  If you require it, you can simply post it back to us (FREE) for recycling.

We began manufacturing limescale inhibitors in 2003 using Siliphos (silicate-polyphosphate).  20 years of continual improvement and innovation has resulted in what we believe are the best limescale inhibitors.  We really value your custom, so all deliveries are free.  Thank you for visiting our website.

Our LimeStops are made in England from parts sourced in Europe

*The Cistermiser Combimate is almost twice the price of our LimeStop 500

Analysis taken from Google Shopping on July 10, 2023 - first five retail suppliers, price averaged at £164.40