About
Stewart Drilling, LLC is a Pennsylvania-licensed geothermal contractor based in New Castle, serving residential and commercial customers within approximately 80 miles. Founded by a fourth-generation well drilling contractor whose family has practiced the trade since the early 1900s, the company provides complete geothermal heating and cooling system design, installation, and maintenance. Stewart Drilling is an authorized ClimateMaster dealer, installing ground source heat pump systems with a 10-year parts and labor warranty. Complementary services include water well drilling, pump installation, water treatment, well cleaning and deepening, well repairs, and constant pressure systems using USA-made Flint & Walling pump products, serving Oil City and the broader western PA region. Verified active operator per stewartwelldrilling.com (PA bundle audit 2026-06-01).
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Stewart Drilling LLC — New Castle, Pennsylvania
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