WHO ARE CALMAG?
Founded in 2002, Calmag is renowned for its industrial and engineering heritage.
Ongoing investment in advanced design, manufacturing, and testing ensures every Calmag product delivers exceptional quality, reliable performance, and outstanding value. This commitment is supported by our dedicated technical expertise and comprehensive after-sales care.
In 2025, Calmag became part of Monarch Water, a leading name in the UK domestic and commercial water treatment sector. Together, we continue to deliver trusted, high-performance solutions for homes, businesses, and industry.
SUCCESS AT SCALE
Calmag has been built around a core range of products, establishing a strong reputation for product innovation and problem solving within both the domestic and commercial areas, and enjoys the largest market share of scale inhibitor sales in the UK, according to figures collated by BEAMA, and is a strongly recognised brand within the plumbing and heating industry.
SUCCESS AT SCALE
Calmag has been built around a core range of products, establishing a strong reputation for product innovation and problem solving within both the domestic and commercial areas, and enjoys the largest market share of scale inhibitor sales in the UK, according to figures collated by BEAMA, and is a strongly recognised brand within the plumbing and heating industry.
UPGRADING INDUSTRIES
Calmag’s commercial specialists design products to exact project specifications, resulting in the most effective and efficient solutions to meet heavy industrial demands and focus on Value Engineering within commerce.
Our work with industry partners and trade associations reflects our total commitment to supporting best practice and the continual development of water treatment excellence.
UPGRADING INDUSTRIES
Calmag’s commercial specialists design products to exact project specifications, resulting in the most effective and efficient solutions to meet heavy industrial demands and focus on Value Engineering within commerce.
Our work with industry partners and trade associations reflects our total commitment to supporting best practice and the continual development of water treatment excellence.
TRUSTED BY THE BEST
Professional installers have confidence in Calmag, with products that give optimum performance combined with ease of installation. Our many customers include some of the world’s largest plumbers’ merchant chains, UK independent merchants, and public sector organisations.
TRUSTED BY THE BEST
Professional installers have confidence in Calmag, with products that give optimum performance combined with ease of installation. Our many customers include some of the world’s largest plumbers’ merchant chains, UK independent merchants, and public sector organisations.
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Or, give us a call on 01986 784759
