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Hardell demonstrates strong reliability and responsiveness, with customers consistently reporting quick emergency service response times, successful furnace and boiler repairs, and knowledgeable technicians who complete work efficiently. The company offers competitive pricing with flexible budget payment plans, professional installation quality, and proactive maintenance advice to help customers maintain their heating and cooling systems in good working condition.
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About the Contractor
Hardell Services is a third-generation family-owned heating, cooling, and energy contractor based in Hagerstown, Maryland, serving Washington County and surrounding communities since 1946. The company offers fuel oil delivery, geothermal system installation and service, natural gas systems, heating and air conditioning installation and repair, and duct cleaning. Hardell's geothermal services are designed to reduce heating and cooling costs through earth-coupled technology while providing a reliable, environmentally sustainable alternative to conventional fossil-fuel systems. The team includes experienced technicians available for 24/7 emergency service, and the company maintains a full inventory of replacement parts to minimize downtime. Customers can take advantage of interest-free budget payment plans, service agreements, and competitive pricing. The company also operates Thompson Oil Co. for fuel oil customers in adjacent Pennsylvania communities.
77-year-old family-owned contractor offering geothermal installation and service with genuine 24/7 emergency coverage and interest-free budget plans across Washington County.
Service Details
schedule
Years in Business
80 years
account_balance
Financing
Available
emergency
Emergency Service
24/7 Available
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24/7 Emergency
Business Hours
Mon8a-5p
Tue8a-5p
Wed8a-5p
Thu8a-5p
Fri8a-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.
Hardell has been Washington County's trusted heating and HVAC service provider for over 77 years, establishing itself as a full-service company since 1946.
Yes, Hardell provides interest-free budget plans and service agreements designed to provide customers with dependable, cost-effective comfort solutions.
Geothermal systems offer lower heating and cooling costs, comfortable and safe operation, and are environmentally friendly—delivering cost-effective, reliable, and sustainable energy options.
Yes, Hardell provides real 24/7 emergency service for any service issues that may arise, and maintains a well-stocked supply of replacement parts.
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Thanks — we'll review your request and forward it to Hardell 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 Hardell Services directly: (301) 739-0743
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.
