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About the Contractor
D&S Green Services is a geothermal heating and cooling contractor based at 4122 Main Street in Lineboro, Maryland. Current federal carrier records identify the operating business, and BGE lists D&S among participating heating and cooling contractors. In 2025 testimony submitted to the Maryland General Assembly, the company stated that it installs geothermal HVAC systems, providing recent independent support for its directory eligibility. The business also works with heating, cooling, and related energy systems. Former GeoComfort, ClimateMaster, and licence statements have been removed because current manufacturer and licence records were not independently confirmed during this review. The listing now relies on the supported business identity, address, phone, and geothermal installation evidence.
Licensed in both Pennsylvania and Maryland with expertise in geothermal systems paired with comprehensive indoor air quality services including radiant floor heating and humidity control.
Service Details
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Financing
Available
emergency
Emergency Service
24/7 Available
factory
Brands Installed
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24/7 Emergency
Business Hours
Mon8:30a-5p
Tue8:30a-5p
Wed8:30a-5p
Thu8:30a-5p
Fri8:30a-5p
SatClosed
SunClosed
Regulatory Context
Geothermal Permitting in Maryland
Geothermal heat pump installations in Maryland 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.
D&S Green Services provides geothermal analysis with estimates, multi-brand manufacturer representation, installation, tax credit assistance, and financing options. They also offer radiant floor heating through geothermal systems.
Yes, they provide comprehensive indoor air quality services including duct cleaning, air quality assessments, air purification systems, and humidity control solutions with conditioning humidifiers and dehumidifiers.
D&S Green Services is licensed and insured in both Pennsylvania (PA License PA 077233) and Maryland (MD License MD HVAC 6348), demonstrating multi-state expertise.
D&S Green Services offers free estimates for all services. You can contact them at 410-984-0569 or [email protected], or call for an appointment. Emergency service is also available.
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Thanks — we'll review your request and forward it to D&S Green Services within 1 business day. If you asked to compare quotes, we'll pass it to up to two more local installers as well. They typically respond within 1–2 business days after that.
If you need to reach D&S Green Services directly: (410) 984-0569
Geothermal heat pump installations in Maryland 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.
