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The contractor demonstrates strong response time and reliability, with customers reporting same-day or next-day service, quick problem diagnosis, and thorough repairs including identifying and fixing additional issues beyond the initial complaint. Technicians provide clear explanations of work performed and system maintenance, while the company maintains transparent pricing without hidden charges and delivers quality installation work with attention to cleanup.
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About the Contractor
Gilliam's Heating & Cooling is a locally owned and operated HVAC contractor based in Weber City, Virginia, serving the Tri-Cities region and Southwest Virginia for over 25 years. Located at 2013 US Highway 23 South, the company specializes in geothermal heat pump installation across all loop configurations — vertical, horizontal, open-loop, and pond-loop — tailored to each property's site conditions, and is a WaterFurnace dealer. NATE-certified technicians service all major brands and perform Manual J load calculations and return-on-investment assessments so homeowners can evaluate potential energy savings before committing. Gilliam's also provides radon testing, addressing the elevated radon risk common across East Tennessee and Southwest Virginia, and offers 36-month financing for approved customers. The company serves customers on both sides of the state line from its Weber City base.
25-year locally-owned operator offering all four geothermal loop types with NATE-certified technicians, 36-month financing, and free ROI evaluations across a four-state region.
Service Details
schedule
Years in Business
28 years
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Boring Methods
Vertical, Horizontal
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Financing
Available
factory
Brands Installed
WaterFurnace
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WaterFurnace
Authorized Dealer
Business Hours
Mon24h
Tue24h
Wed24h
Thu24h
Fri24h
Sat24h
Sun24h
Service Area
Serves 4 areas across Virginia
KingsportJohnson CityBristolSouthwest Virginia
Regulatory Context
Geothermal Permitting in Virginia
Geothermal heat pump installations in Virginia 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.
Gilliam's Heating & Cooling specializes in vertical loop, horizontal loop, open-loop, and pond-loop geothermal systems, tailored to each property's unique requirements.
Gilliam's provides free comfort evaluations including Manual J load calculations and return-on-investment assessments; the company notes that many times energy savings will exceed the monthly investment on new equipment.
Yes, Gilliam's offers 36-month financing available for approved credit, making geothermal systems more accessible to homeowners throughout the Kingsport, Johnson City, Bristol, and Southwest Virginia areas.
Yes, Gilliam's service technicians are NATE-certified and service all brands of geothermal heat pump systems.
In addition to geothermal services, Gilliam's now offers radon testing, which is particularly important in East Tennessee where radon levels are elevated.
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If you need to reach Gilliam's Heating & Cooling directly: (423) 323-4700
Geothermal heat pump installations in Virginia 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.
