An air source heat pump installation in Ireland can cost roughly €12,000–€18,000 before support, although the price varies with the home, insulation, radiators, hot-water system and any electrical work needed. The SEAI offers heat pump grants that may reduce the upfront cost, but the amount depends on the property and the work approved. A technical assessment by an SEAI-registered contractor is normally needed, and the final grant and installation cost are not guaranteed. Compare written quotations and check the latest rules on the official SEAI website before starting work.