DENIS T O'SULLIVAN (SALES AND SERVICES) LIMITED

Denis T. O’Sullivan (Sales and Services) Limited – trading as D.T.O.S. Water – is a family‑run specialist in water technology serving the south of Ireland. With almost five decades of experience, the company designs, drills and commissions private water supplies for domestic households, farms and commercial premises across Cork, Kerry and the wider southern region.

Their core services include precision well‑drilling, bespoke water‑pump installation and the supply of high‑quality European and US‑manufactured pumps and pressure tanks. D.T.O.S. Water also offers a full suite of water‑testing and treatment solutions, from on‑site analysis to the provision of softeners, pH correction, odour and bacteria removal, and filtration systems tailored to potable, agricultural or industrial use. A 365‑day, round‑the‑clock call‑out service ensures rapid support whenever a problem arises.

Originally an agricultural‑machinery repair business, the father‑and‑son team of Denis and John O’Sullivan have expanded into the dairy and water sectors, becoming a trusted link between manufacturers such as Dairymaster and the farming community. Their commitment to reliable, hassle‑free water supplies makes them the go‑to partner for anyone looking to secure a sustainable private water source.