NetZero was established in 2023 following the merger of two businesses, O’Connor Heating & Plumbing (“OCHP”) and Gaffney Mechanical (“Gaffney”) by Waterland Private Equity (“Waterland”).

Founded in 2014, OCHP specialises in heat pump installation services for new-build residential housing in Ireland. Gaffney was established in 1999 and designs, supplies and installs heat pump systems for large-scale (>50 units) new-build residential developments in Ireland. The business also has a growing service & maintenance and retrofit offering. Gaffney was the heat pump installation market leader in Ireland with the most mature service offering, and was the leading direct competitor to OCHP prior to the merger. Combined they are the national market leader.

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