Water Chemistry
Delivering safe, clean water
Since 1981, Chemifloc has manufactured the unique chemistry that provides clean potable water and safe utility water. We offer a wide range of chemicals including coagulants, flocculants, septicity control and PH correction products. We also work closely with our customers to manufacture bespoke products to satisfy their unique processes. All backed by a robust supply chain, expert logistics, and specialist services including laboratory testing and telemetry.
CSG & Chemifloc
Chemifloc is now a CSG brand, but we haven’t changed: our team, our drivers, our products, our processes, our expertise remain the same. Our commitment to deliver a guaranteed supply of vital chemicals to optimise all stages of water treatment is unwavering.
Our History
40-years of specialist chemistry expertise, a guaranteed supply of vital chemicals, and exceptional customer service.
Early beginnings
Chemifloc was founded by Ed Storey and Hilary Lawless in 1981.
Small-scale manufacturing and distribution of coagulants and polyelectrolytes.
Joint venture with E&A West leading to opening of manufacturing plant in Galway
Strong growth & investment
Strong growth and winning of national contracts.
Significant investment in manufacturing technology.
Transferred operations to Shannon.
New facility increases footprint
Acquisition of Alumina Chemicals and transfer of operations to Shannon.
Facility at Foynes port developed to aid bulk importation of raw materials.
Launch of in-house lab
Acquired Goulding Chemicals, rebranded to GI Chemicals, becoming the largest sodium hydroxide distributor in Ireland.
Expanded facilities at Foynes port.
Launched Chemilabs to provide jar and water testing to the marketplace.
UK expansion
Period of significant growth in the Irish market.
Expansion into the UK with addition of port facilities in Immingham.
Continued to build out support services in Shannon.
Our brands
CSG was incorporated in 2025, serving as the parent company for both Chemifloc and GI Chemicals.
Providing the company with the flexibility needed to grow and evolve over the coming years.
An extensive range of proven chemical products
A complete portfolio of carbon-based absorbents to remove contaminants such as oils, chemicals, and suspended solids.
A wide range of polyelectrolytes for use as chemical flocculants, and specialist chemicals including aluminium sulphate and ferric sulphate for coagulation.
Both generic and bespoke products used to break down fats, oils, and residues, ensuring clean surfaces and optimised system performance.
Delivering disinfection and sterilisation for safe, clean, potable water, with chemicals including caustic soda and sodium chlorate.
A specialist range of proven PH and alkalinity correction chemicals, including sulphuric acid, caustic soda, sodium carbonate and more.
A range of carefully developed odour and septicity control products, available in various strengths and proven across multiple applications.
A wide range of chemical products including hydrofluorosilicic acid, antifoaming agents, copper sulphate, sodium thiosulphate, and more.
A full product line including phosphoric acid and nitric acid, aimed at preventing scale build-up and corrosion, ensuring efficiency and equipment longevity.
Your complete specialist chemical solution partner
We offer a range of equipment rental solutions to help our customers with the storage and dosing of chemicals. From ISO tankers and dosing rigs to mobile bunds and tank telemetry systems.
A robust global supply chain, large fleet of modern trucks, and delivering to over 1,600 locations. With just-in-time delivery, flexible pack sizes and emergency response.
Helping our customers and suppliers deliver on their sustainability targets through carefully developed tools, more efficient processes, and environmentally responsible practices.
With deep expertise in chemical applications, our team can recommend off-the-shelf or bespoke solutions, and offer a comprehensive range of lab services including testing, optimising dosing and refining treatment plans.