About
Chelsea Heating & Air is a family-owned geothermal specialist based in Avondale, Pennsylvania, serving Chester County, the greater Philadelphia area, and the Eastern Shore. The company has designed and implemented geothermal systems since 1978 and has completed more than 2,500 ground-source heat pump projects across residential and commercial properties in the tri-state area. Chelsea installs ClimateMaster closed-loop ground-source systems in vertical and split-unit configurations for both new construction and retrofit projects. Licensing covers Pennsylvania (006692), Delaware (1992100193), and Maryland (4669181), with IGSHPA geothermal certification 8033401. The team offers free geothermal estimates and provides ongoing service, maintenance, and system support throughout Chester County and the surrounding tri-state communities. Verified active operator per https://www.chelseaair.com geothermal page (PA bundle audit 2026-06-01)
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Chelsea Heating & Air — Avondale, Pennsylvania
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