Home Energy Assessment
A comprehensive assessment measures heated and cooled areas, evaluates current heating/cooling efficiency, and reviews existing utility bills and comfort patterns.
Energy-Efficient Heating From the Earth Below
Geothermal heating is the most efficient way to warm your home year-round. Unlike furnaces that burn fuel, geothermal heat pumps harvest thermal energy from the ground — which stays a constant temperature — and deliver it indoors, even in Indiana's coldest months. Harmon Heating & Cooling installs Climate Master, LG, and other leading geothermal systems with full ground loop design, professional installation, and long-term support. A geothermal system is a 25+ year investment in reliability and lower heating and cooling costs.
Geothermal installation is a major project requiring property assessment, ground loop design, and professional installation. Our consultation evaluates your home's heating/cooling needs, soil conditions, and available space to recommend the right system and loop configuration. We provide a complete quote covering all costs.
Not sure which path fits? Compare with our heating/cooling alternatives or protect your geothermal investment with a maintenance plan.
Renewable Heating
35+ Years of Experience
Honest System Sizing
Manufacturer-Trained
Local to Fishers
Five steps from your first free assessment to a fully tested system we hand over with a walkthrough.
We visit your home to understand your heating and cooling needs and assess your property. We measure heated square footage, evaluate insulation and air sealing, review your current utility bills, and examine your yard for ground loop installation options (vertical loops for limited space, horizontal for larger properties). We answer your questions about efficiency, cost, and environmental benefits.
Based on our assessment, we design a geothermal system sized to your home. We calculate heating and cooling loads, determine the right loop configuration, select the indoor unit location, and plan electrical and venting. We provide a detailed proposal with equipment specs, loop design drawings, installation timeline, and complete pricing — including ground work, electrical, permits, and testing.
We handle permitting with local authorities and coordinate drilling, electrical, and construction schedules. We confirm property access, clarify any utility locations underground, and prepare your site. We also register your system with manufacturers to ensure warranty coverage from day one.
Drilling and loop installation happens first, followed by indoor unit placement and electrical integration. Vertical loops are precise and contained; horizontal loops require more yard space but less drilling depth. Once the loop is pressure-tested, we install the indoor heat pump unit, connect it to your ductwork or radiant system, wire electrical, and program controls. Final testing verifies proper operation before handoff.
Before final completion, we run your geothermal system under full load to verify heating and cooling output, ensure even air distribution, test thermostat response, and confirm all safety controls. We walk you through system operation, seasonal adjustments, filter maintenance, and the importance of annual tune-ups. You receive warranty documentation, manuals, and our contact information for any questions.
Our team handles every aspect of your installation — from the first site survey to the final handoff.
A comprehensive assessment measures heated and cooled areas, evaluates current heating/cooling efficiency, and reviews existing utility bills and comfort patterns.
We survey your yard for loop placement options — vertical loops for limited space, horizontal for larger properties — and locate underground utilities before any digging.
We calculate heating and cooling loads for accurate sizing, design the loop configuration, and select equipment from leading manufacturers.
We handle permit applications and approvals and coordinate drilling contractors, electrical installers, and scheduling so every phase runs in order.
Ground loop drilling and pipe installation is done per design, followed by loop pressure testing and flushing to ensure proper circulation.
We install the indoor geothermal heat pump unit, connect it to your ductwork or radiant system, and wire electrical and control systems.
We install and program the thermostat, then set up controls for seasonal heating and cooling operation tuned to your home.
Full-load performance testing in both heating and cooling modes, carbon monoxide and safety system verification, and final performance checks before handoff.
Your geothermal system is a major investment in long-term comfort and savings. Protect it with our geothermal-specific maintenance plan. Annual ground loop flushing, refrigerant checks, and full system testing keep your system running at peak efficiency and extend its lifespan significantly.
A new HVAC system is a real investment, and Harmon Heating & Cooling works with Service Finance to help make that investment manageable. Whether you're replacing an aging furnace before winter or upgrading to a more efficient central AC system, financing options are available so an unexpected repair or planned upgrade doesn't have to wait.
Our team can walk you through financing options through Service Finance at the time of your estimate, so you know what to expect before any work begins.
Contact Us to ApplyDon't wait on a failing furnace or AC — get your system installed today and spread the cost into manageable monthly payments.
Flexible terms keep payments predictable, so a new system fits your budget instead of draining your savings all at once.
Financing makes it easier to step up to a more efficient Armstrong system that lowers your energy bills month after month.
We design and install geothermal systems across Central Indiana. Fishers is our headquarters and gets experienced local installations, with Westfield just west, Noblesville to the north, Fortville to the east, Pendleton to the southeast, and Carmel to the south.
Don't see your city listed? Harmon Heating & Cooling serves additional communities throughout Central Indiana beyond our primary service area — reach out and we'll let you know if we cover your address.
If your geothermal system needs repair or maintenance, our team handles expert diagnostics and professional support. Not sure which service you need? Start with the full silo.
Geothermal systems are a transformative investment in comfort, efficiency, and savings. Harmon Heating & Cooling designs and installs geothermal systems that work reliably for 25+ years, slashing heating and cooling costs dramatically. Our manufacturer training, property expertise, and commitment to quality ensure your system is installed right — and we help you capture federal tax credits and rebates that make geothermal affordable.
Federal tax credits cover 30% of geothermal system costs through 2032. Flexible financing is available through Service Finance — see our financing options to spread the remaining cost over manageable monthly payments.
Call 317-588-8303 to design a geothermal system for your home.
