DosaFil Residential Technologies, sister company of SolidTek, has appointed new distribution partners for its SOLID range of solid chemical water treatment products for residential heating and plumbing.
Since launching the range in 2023, DosaFil Residential has focused on developing and introducing solid-form chemical treatments, including cleaners, inhibitors and biocides, to the UK and European residential heating and low-temperature air source heat pump markets.
The company has been working with OEMs, installers and end users to demonstrate the practical and sustainability benefits of solid chemical treatments compared with traditional liquid products.
For 2026, DosaFil Residential has appointed Roth UK as sole distributor for its SOLID chemicals range. Roth UK will manage UK product enquiries and sales (www.roth-uk.com).
Roth UK is part of Roth Industries and has over 75 years’ experience in the manufacture of water management and distribution products. The UK division focuses on the design and supply of underfloor heating systems and technical services, with applications including low-temperature heating and sustainable energy systems.
Roth UK has incorporated solid water treatment products into its underfloor heating and cooling system solutions. Chemical treatment has been used in both new-build projects for system protection and in existing residential systems to help restore system performance.
Graham Moore – GM of Roth UK says:
“We’re delighted to be appointed UK sole distributor. We’re convinced by the benefits the products offer us and our customers, and we’re committed to providing the best in innovation. The SOLID cleaners, inhibitors and biocides give us the portfolio of products needed to maintain quality of water circulating in underfloor heating systems and associated heat source equipment – it’s become a vital part of the overall system solutions we offer.”

