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Now only £7.98 on Fernox F1 Protector and F3 Cleaner at City Plumbing.
Dosafil Dr Mixed Box DRMIXED
Dosafil Dr Mixed Box DRMIXED


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Water Treatment Chemicals

Keep your central heating and boiler system in tip-top condition with our range of water treatment chemicals. Browse our selection online and find the chemicals you need in-between your annual service.
We have a whole host of water treatment chemicals for sale from leading brands including Sentinel, Fernox, and CalMag.
With next-day delivery and Click & Collect available across the range, as well as free delivery on orders over £50, you can trust City Plumbing to help you get the job done.

What water treatment chemicals do you have for sale?

You'll find a variety of water treatment chemicals for sale to help ensure your heating and boiler system is working as good as new.
For those times when the temperature drops, reach for the anti-freeze to reduce the risk of costly repairs following burst pipes, while our leak sealers are ideal for sealing small cracks or weeping joints on all types of indirect central heating systems.
In order to help break down the sludge build-up in your central heating system and protect it from returning, corrosion and scale inhibitors will do the job.

What to consider before buying water treatment chemicals?

Water treatment chemicals are designed to protect your boiler in-between services, so the only thing you need to consider before buying is deciding which industry-leading brand you're going to choose.
To keep your central heating system working throughout the year, corrosion and scale inhibitors should be a staple. Protecting all metals and alloys in the heating system, they're suitable for all water types.
Come the winter months, you should consider adding an anti-freeze treatment, and if you noticed recent pressure loss, a leak sealer would be perfect.

Why buy water treatment chemicals from City Plumbing?

We’ve been helping tradespeople and homeowners alike for almost 40 years, whether it’s sourcing heating and plumbing spare parts or helping with other jobs around the house.
In that time, we’ve built up significant expertise, so please visit your local branch to see our team if you need any extra help finding the right water treatment chemicals for your heating system.
We’re all about convenience too, and that’s why we offer next-day delivery on products right across the range, and we’ll deliver to your door or worksite for free on orders worth £50 and more.
Alternatively, you can Click & Collect. With more than 370 branches right across the UK, you’re sure to find one that’s near you.

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