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Cassell Brothers Home Services is a family-owned HVAC, plumbing, and electrical contractor established in 2008 by James Cassell, serving the South Carolina Midlands from their Irmo headquarters. The company offers geothermal heating and cooling system installation, repair, and maintenance alongside a full suite of residential home services. Their technicians are NATE-certified and the company holds BBB accreditation. Cassell Brothers also provides geothermal-assisted hot water solutions, combining ground-source heat pump efficiency with domestic water heating. They extend their service footprint into the Augusta, Georgia market from a second location in the CSRA region, making them one of the few Midlands contractors with a dual-state geothermal service presence.
Family-owned Midlands SC geothermal contractor founded 2008. NATE-certified team serving Irmo, Columbia, and the Augusta GA area.
Service Details
schedule
Years in Business
18 years
factory
Brands Installed
Service Area
Serves 7 areas across South Carolina
IrmoColumbiaLexingtonChapinBlythewoodElginAugusta GA
Regulatory Context
Geothermal Permitting in South Carolina
Geothermal heat pump installations in South Carolina require specific permits and compliance with state regulations regarding well drilling, loop installation, and refrigerant handling. Contact your local building department for specific requirements in your area.
Geothermal heat pump installation in Irmo typically costs between $18,000–$45,000 depending on system size, loop type (vertical vs. horizontal), lot conditions, and home square footage. Available state and utility incentives can reduce net cost (federal §25D credit ended Dec 31, 2025 under OBBBA; §48 commercial ITC may still apply). Request quotes from multiple certified installers in South Carolina to compare pricing.
Most South Carolina municipalities require permits for geothermal well drilling and ground loop installation. Requirements vary by county — some require driller licensing, environmental impact review, or water well permits. Your geothermal installer should handle the permitting process. Contact your local Irmo building department for specific requirements.
Geothermal heat pumps typically last 20–25 years for the indoor unit and 50+ years for the ground loop. In Irmo's climate, a properly maintained system provides reliable heating and cooling with minimal degradation. Annual professional maintenance and filter changes every 3 months help maximize system lifespan.
Most properties in Irmo, South Carolina can support geothermal systems. Vertical loop systems require minimal land area (as little as a standard residential lot), while horizontal loops need more yard space. A qualified installer will conduct a site assessment including soil conductivity testing to determine the best loop configuration for your property.
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If you need to reach Cassell Brothers Home Services directly: (803) 868-6191
Geothermal heat pump installations in South Carolina may require drilling permits, environmental site assessments, and compliance with local well and thermal energy regulations. Requirements vary by jurisdiction and system type (vertical, horizontal, open-loop). Contact your local municipality, state energy office, or a licensed geothermal installer for specific permitting requirements in your area.
