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Your Trusted Partner for Plumbing Solutions in Hertfordshire
Established over a decade ago, Mister Water Softener has become a trusted provider of water softening solutions across Hertfordshire. Our expertise lies in supplying and installing TwinTec S3 water softeners, a non-electric, twin-cylinder system designed to deliver uninterrupted softened water. We pride ourselves on offering comprehensive after-sales support, including block salt supply and maintenance services. Our team of factory-trained engineers ensures every installation meets the highest standards of craftsmanship and efficiency. Backed by a 10-year manufacturer guarantee, we prioritise customer satisfaction through reliable service and technical excellence.

As a family-run business, we combine local knowledge with national dealership support from Harvey Water Softeners Ltd. Our commitment to quality is reflected in our WRAS-accredited products and consistently positive customer feedback. We specialise in tailoring systems to individual household needs while maintaining competitive pricing. Our reputation for punctuality, tidiness, and professional aftercare has solidified our position as a leading supplier in the UK. From initial consultation to long-term support, we aim to make softened water accessible and hassle-free for every home.
Services
Water Softener Installation TwinTec S3 Supply Block Salt Delivery Water Filter Fitting After-Sales Support
Highlights and features
  • We offer a 10-year manufacturer guarantee on all water softeners
  • Our engineers are factory-trained for TwinTec S3 installations
  • We provide same-day block salt delivery in Hertfordshire
  • Our team maintains WRAS-accredited product standards
  • Family-run business with 10+ years of local expertise
Associations and certifications
  • WRAS
What people say
Excellent Quality of Workmanship Professional throughout Bang on time Good after work support Highly recommend Mark
Services
Water Softener Installation
We install TwinTec S3 water softeners that continuously remove minerals causing limescale. Our engineers ensure seamless integration with existing plumbing systems under kitchen sinks or outdoor locations. The non-electric twin-cylinder design guarantees uninterrupted softened water supply while extending appliance lifespan.
TwinTec S3 Supply
We supply WRAS-accredited TwinTec S3 systems developed over 40 years. These non-electric softeners use block salt for easy maintenance and ion exchange technology to produce softened water. Each unit comes with a 10-year manufacturer guarantee and requires no electricity to operate.
Block Salt Delivery
We deliver TwinTec block salt directly to customers in Hertfordshire. The salt maintains softener efficiency through regular regeneration cycles. Our fast delivery service ensures uninterrupted operation of water softening systems without heavy bag handling.
After-Sales Support
We provide comprehensive aftercare including system maintenance and troubleshooting. Our team offers technical advice on softener operation and salt replenishment. Customers receive ongoing support for both installed systems and consumables like washing powder.
Water Filter Fitting
We install drinking water filters that bypass softening systems for improved taste. The filtration process removes impurities while maintaining mineral balance. Customers can choose between softened water and filtered drinking water through dedicated taps.
People
Mark
Lead Engineer
Factory-trained water softener specialist with 10+ years' experience. Known for punctual, tidy installations and exceptional aftercare. Holds WRAS accreditation for TwinTec systems. Regularly receives 10/10 customer ratings for professionalism.
Questions
How do TwinTec S3 water softeners work?
They use ion exchange technology with twin cylinders to continuously remove calcium and magnesium from hard water without electricity.
Can I get same-day salt delivery?
Yes, we offer fast block salt delivery within Hertfordshire, often within an hour of ordering.
Are your engineers certified?
Our engineers are factory-trained and maintain WRAS accreditation for TwinTec S3 installations.
Do you serve areas outside Hertfordshire?
We primarily serve Hertfordshire, but can arrange support for nearby regions through our national dealership network.
What's included in the 10-year guarantee?
The guarantee covers manufacturing defects and performance issues under normal domestic use conditions.
Can I have both soft and hard water taps?
Yes, we can install bypass taps for unsoftened drinking water while maintaining softened water for other uses.