Energy-Efficient Geothermal Installation for Year-Round Lancaster County Comfort

Once we know your home’s heating and cooling demand, we evaluate your property to design the ground loop that will supply that demand. We visit your property, measure available land area, assess soil composition, review topography, and identify potential drilling or trenching constraints.

For horizontal loop systems (most common), we need sufficient land area—typically 400–600 square feet per ton of system capacity. For vertical loop systems (smaller properties or constrained sites), we evaluate drilling feasibility and cost. We also check for underground utilities (water mains, sewer lines, electric/gas service) that drilling or trenching must avoid.

• Measure property dimensions and available land area suitable for loop installation
• Assess soil type and composition through visual inspection (or soil boring if needed)
• Identify utilities: locate water main, sewer, gas, and electric lines to avoid conflicts
• Evaluate topography: assess slope, drainage, and seasonal water conditions
• Check for underground rock formations or dense soil that complicate drilling
• Identify building locations and setback requirements from trenching or drilling
• Review property deed and HOA restrictions affecting loop installation
• Photograph property and create detailed site map for loop design

Based on the in-home assessment and site evaluation, we design a ground loop system matched to your specific situation. We determine: Loop Type: Closed-loop (most common—buried plastic piping with heat transfer fluid) vs. open-loop (if groundwater is accessible and permitted). Closed-loop systems are environmentally safe and don’t depend on groundwater quality or availability.

Loop Configuration: Horizontal loops (4–6 feet deep across your yard) vs. vertical loops (100–400 feet deep in smaller spaces). Horizontal is standard when land area allows; vertical is used for smaller properties or rocky soil. Loop Material & Sizing: We specify exact loop pipe size (typically 3/4" or 1" HDPE plastic), total loop length (calculated to match soil thermal properties and system capacity), and heat transfer fluid type. A professional geothermal designer uses computer modeling—accounting for soil thermal conductivity and seasonal temperature swings—to predict actual loop performance.

• Determine optimal loop type (closed-loop vs. open-loop) based on site conditions
• Select loop configuration (horizontal vs. vertical) based on available land and soil
• Calculate total loop length required using thermal modeling software
• Specify loop material (HDPE plastic piping size and gauge)
• Design loop trench layout (if horizontal) or drilling plan (if vertical)
• Create detailed installation drawing showing loop routing, manifold location, and connections
• Size heat transfer fluid volume and specify fluid type (usually water/glycol blend)
• Provide written design report with system efficiency predictions and annual energy cost estimates

We provide a detailed written estimate including: Ground loop installation (labor and materials), Indoor unit (compressor, air handler, controls), Ductwork modifications (if needed to optimize airflow), Electrical work (circuit, disconnect, wire sizing, breaker), Permits and inspection fees, Equipment warranty terms, Labor warranty.

We also discuss financing programs (Wells Fargo, PowerPay, GoodLeap) that spread costs across 24–60 months, plus any rebates or incentives that may apply to your installation at the time of service.

• Itemize all costs: ground loop, equipment, labor, permits, electrical
• Explain efficiency metrics: projected annual energy use and cost savings
• Show payback timeline: when energy savings recoup installation investment
• Discuss available financing and monthly payment options
• Discuss any rebates or incentives that may apply, and provide supporting documentation
• Answer questions about warranty coverage and future maintenance costs

Geothermal installation requires electrical permits and often water/well drilling permits depending on your loop design. We pull all necessary permits, coordinate with the drilling contractor (if vertical loops), schedule utility locating services to mark underground lines, and arrange final inspections.

We also prepare your property: identifying where trenches will run (for horizontal loops), confirming access routes for drilling equipment (if vertical loops), and notifying you of any temporary property disruptions during installation.

• Pull electrical permit and any water well/drilling permits
• Schedule utility locating service to mark gas, electric, water, sewer lines (call 811)
• Coordinate with drilling or excavation contractor (if needed)
• Schedule permitting inspections with local building officials
• Verify equipment delivery dates and confirm installation schedule
• Notify homeowner of any property access needs or temporary disruptions
• Arrange site protection: driveways, landscaping, utilities to be protected during work

Installation day: the drilling or trenching crew begins ground loop placement. For horizontal loops, trenches are dug 4–6 feet deep in carefully planned routes. For vertical loops, drilling rigs access your property and bore to specified depths (typically 100–300 feet, depending on load requirements). Loop pipe is laid carefully, pressure-tested immediately to ensure no leaks, and then buried or backfilled.

Once buried, the loop is pressure-tested again—confirming no damage occurred during installation and that the system holds pressure safely. We measure loop flow rate and pressure drop to verify circulation will be adequate.

• Supervise ground loop installation by drilling/excavation crew
• Verify loop pipe placement matches design specifications
• Perform initial pressure testing after loop installation (before burial/backfill)
• Pressure-test again after burial to confirm no damage or leaks
• Measure loop flow rate and pressure drop; verify against design expectations
• Verify heat transfer fluid fills and circulates properly through buried loop
• Document loop installation and test results in written report

While ground loop installation occurs, we install the indoor unit—the compressor/condenser cabinet (if air-cooled) or heat exchanger (if liquid-coupled), air handler with blower, and all refrigerant or fluid connections. We also inspect existing ductwork and make any modifications needed to optimize airflow—balancing supply and return to ensure even heating and cooling throughout your home.

Undersized or poorly balanced ductwork can waste 30–40% of geothermal system efficiency. We ensure ducts are adequate and connections are sealed properly.

• Install indoor equipment following manufacturer specifications exactly
• Verify equipment placement, clearances, and vibration isolation
• Inspect existing ductwork for sizing adequacy and air leakage
• Seal ductwork leaks using mastic sealant (not duct tape)
• Install or reconfigure ducts as needed to optimize distribution
• Balance ductwork dampers to ensure even temperature throughout home
• Connect ground loop heat transfer fluid to indoor heat exchanger
• Verify all connections are secure and properly supported

The refrigerant circuit connects the indoor compressor to the ground loop heat exchanger. We use proper copper tubing, insulation, and vibration isolation to prevent damage and noise. All connections are made using approved fittings and brazing procedures.

Before refrigerant charge is added, the entire system is evacuated—all air and moisture are removed using specialized vacuum pump equipment. Moisture in the refrigerant circuit corrodes components and reduces efficiency. A proper evacuation takes 1–2 hours depending on system size.

• Connect refrigerant tubing between indoor and ground loop components
• Use proper tube sizing based on refrigerant type and flow rate
• Insulate all exposed refrigerant lines to prevent heat loss/gain
• Braze all connections using approved procedures and materials
• Pressure-test all connections before refrigerant charge
• Perform deep system evacuation using vacuum pump (remove air and moisture)
• Verify vacuum holds—confirming no leaks exist in the circuit
• Add proper refrigerant charge matched to equipment specifications

Geothermal systems require dedicated electrical service with proper wire sizing, circuit breaker, and disconnect switch matched to the compressor’s electrical demands. We run all wiring to code, test for proper voltage and ground continuity, and verify all safety controls function correctly.

We also program the thermostat and control board for optimal geothermal operation—setting heating and cooling setpoints, scheduling strategies, and efficiency optimization features. We explain how to use your thermostat effectively and answer questions about efficiency settings.

• Install electrical circuit breaker and disconnect switch per code
• Run properly-sized wire and conduit from electrical panel to equipment
• Verify correct voltage (240V or 208V, depending on equipment) at all connections
• Test electrical continuity and proper grounding integrity
• Install and test safety controls: high-pressure switch, low-pressure switch, high-limit thermostat
• Connect thermostat control wiring and test communication with control board
• Program thermostat: heating setpoints, cooling setpoints, schedules, efficiency modes
• Verify all safety interlocks function correctly

The system is powered up and run through heating and cooling cycles. We monitor refrigerant pressures, superheat, and subcooling—adjusting refrigerant charge if needed to optimize performance. We verify the compressor cycles correctly, the blower operates at proper speed, and the thermostat controls temperature accurately.

We also conduct efficiency testing using specialized equipment—measuring system output capacity and comparing it to design specifications. You’ll receive a commissioning report documenting that your system operates at or above design efficiency.

• Power up system and observe initial startup sequence
• Monitor refrigerant pressures and superheat/subcooling readings
• Verify compressor cycles on and off correctly per thermostat demand
• Test blower operation at heating and cooling speeds
• Measure airflow velocity at supply and return vents
• Perform heating cycle: confirm temperature rise and comfort
• Perform cooling cycle: confirm temperature drop and humidity control
• Measure system output capacity and compare to design specifications
• Verify thermostat responds to setpoint changes without overshoot
• Document all readings and performance results in commissioning report

Before we leave, you receive comprehensive training on system operation. We explain: Thermostat use: setpoints, heating/cooling modes, schedule settings; Seasonal operation: winter settings for heating, spring settings, etc.; Efficiency optimization: how to use setback schedules and programming; Filter maintenance: when to replace air filter and what to use; Ground loop circulation: understanding the heat transfer fluid circulation (minimal homeowner involvement); Frost protection: understanding auxiliary heat for extreme cold (if equipped); What to monitor: normal operating sounds, temperature consistency, thermostat response.

You receive complete documentation: equipment serial numbers, model numbers, warranty terms, supporting paperwork for any applicable rebates or incentives, service contact information, and our emergency contact number. We schedule a 1-week follow-up call to ensure everything is operating as expected and answer any questions.

• Explain thermostat operation: heating mode, cooling mode, setpoint, schedules
• Demonstrate filter location and explain replacement frequency (every 3–6 months)
• Explain emergency operation: what to do if system stops working
• Walk through equipment location and explain basic maintenance (mostly inspection)
• Provide written documentation: model numbers, serial numbers, warranty, service contact
• Leave all warranties and equipment manuals in accessible location
• Explain any rebate or incentive documentation provided and how to submit
• Schedule 1-week follow-up call to check performance and answer questions
• Provide emergency contact information and explain what constitutes an emergency