British-Made Water Softeners
Installed by your local expert with a 10 year parts guarantee. Designed by the UK’s leading water softener manufacturer.
Find your local installer
Enter your full postcode to find a Twintec retailer near you.
Find a local installer
Enter your full postcode to find a Twintec retailer near you.
Why TwinTec?
TwinTec Water Softeners are the most advanced block salt, non-electric water softener ever made. Designed and manufactured in England, discover the difference that softened water can make in your home.

Twintec Cobalt
The Cobalt is TwinTec’s latest 5th generation Water Softener with its improved design, eco-features and robust testing.

Twintec S4
TwinTec S4 is designed and engineered in the UK by Harvey Water Softeners and works with all plumbing systems.

Salt
Salt is necessary to keep your water softener running while supplying your household with softened water 24 hours a day.

Designed by leading manufactures in the UK
All TwinTec Water Softeners are precision engineered and hand-built in Surrey. The NEW Cobalt is the TwinTec 5th generation water softener with its improved design, eco-features, robust testing and WiFi-enabled iLid.
Softened water 24/7
Our water softeners pack a little more punch than all the rest as they have two cylinders, unlike the industry standard of just the one. So whilst one is regenerating the other is still working to soften your water. This means the TwinTec Cobalt provides you with an uninterrupted supply of softened water, no matter how much water your family uses.


The amazing benefits of having a water softener
Did you know that investing in a water softener saves you money in the long term? With softened water, appliances last longer and are less likely to break. Your boiler and pipes will stay unblocked, which results in them running more efficiently; saving you money on your heating bills.
Testimonials
Remarkable reduction in limescale
Since the installation we’ve noticed a remarkable reduction in limescale in all our relevant appliances, the water is softer and generally nicer to use. We’ve found it necessary to fit a filter to our drinking water supply as advised at the time of fitting the system. Salt usage is as described by the fitting engineer and after a year I feel I can recommend it. If you have hard water and limescale problems this can probably answer the problem.
Made a massive difference
I am so pleased with my Twintec water softener. Our water is extremely hard and the softener has made a massive difference. Most noticeably is the condition of my skin, i am prone to very dry skin and out breaks of eczema and this has completely cleared up. I can’t remember the last time I had any patched of eczema. My hair is sorter and shinier as an added bonus.
It has saved us money on repairs and breakdowns
We have had this softener for many years. It has saved us money on repairs and breakdowns over the time we have used it. Having a shower or bath is lovely, and your skin is left soft and shower/bath products lather beautifully and no marks on the bath. Good service with salt supplies and a knowledgeable helpful lady on the end of the telephone line. I have no hesitation in recommending this product and service.
Highly recommend
We have been using the TwinTec S4 with total satisfaction for over 5 years now. It is simplicity itself. The machine is small and unobtrustive, absolutely maintenance free and silent in use. I have owned a number of softeners, but never one as efficient as the S4.
Remarkable reduction in limescale
Since the installation we’ve noticed a remarkable reduction in limescale in all our relevant appliances, the water is softer and generally nicer to use. We’ve found it necessary to fit a filter to our drinking water supply as advised at the time of fitting the system. Salt usage is as described by the fitting engineer and after a year I feel I can recommend it. If you have hard water and limescale problems this can probably answer the problem.
No scale in the house at all now
We were unsure as to wether we really needed a softener but how wrong I was. There is no scale in the house at all now, appliances are lasting well, My wife’s “winter hands ” are no longer a problem. It has been a great investment. Fitting was straightforward, the guys were great.
Made a massive difference
I am so pleased with my Twintec water softener. Our water is extremely hard and the softener has made a massive difference. Most noticeably is the condition of my skin, i am prone to very dry skin and out breaks of eczema and this has completely cleared up. I can’t remember the last time I had any patched of eczema. My hair is sorter and shinier as an added bonus. Everything now comes out of the dishwasher cleaner, I need less detergent in the washing machine and clothes...
