Complete Geothermal Heat Pump Services
From new loop field drilling and installation to heat pump troubleshooting and glycol flushing, we handle every aspect of geothermal heating.
New Geothermal System Design & Install
Turnkey ground-source heat pump design and installation for custom homes, rural properties, and eco-conscious retrofits.
- Horizontal trench & vertical borehole loop fields
- Water-to-Air & Water-to-Water radiant integration
- Assistance with federal eco-energy tax credits
Geothermal Heat Pump Repairs & Diagnostics
Expert troubleshooting for coaxial heat exchangers, expansion valves, circulating pumps, and compressor electrical components.
- Refrigerant circuit leak testing & recharge
- Flow center pump module replacement
- Reversing valve & defrost control repairs
Ground Loop Purging, Pressurization & Glycol
High-pressure loop purging to eliminate air pockets, replenish freeze-protecting glycol solution, and restore heat transfer.
- Hydrostatic ground-loop pressure testing
- Eco-safe propylene glycol refilling & pH balance
- Purge cart air entrapment elimination
Pond & Well-Water Geothermal Systems
Specialized water-well and surface pond slinky coil heat extraction setups for rural and acreage properties.
- Well water discharge and filtration balancing
- Pond loop anchoring and depth verification
- Cupronickel coil descaling and maintenance
Geothermal In-Floor Radiant Heating
Connect your geothermal unit to hydronic floor tubing for the most luxurious, even, and silent warmth possible.
- Water-to-water heat pump pairing
- Buffer tank and manifold zone control
- Zero drafts and no airborne dust circulation
Desuperheater Free Domestic Hot Water
Harness excess geothermal heat during summer and winter to generate virtually free hot water for your household.
- Generates 50-60% of annual household hot water
- Pre-heat storage tank integration
- Lowers electric or gas water heating costs
Common Geothermal Issues We Fix Fast
Experiencing lower heating output or error codes on your ground-source system? Here is what our technicians resolve.
Ground Loop Pressure Loss Lockout
The heat pump shuts down with a low-pressure error code due to micro-air leaks or low fluid volume in loop pipes.
Constant Backup Electric Resistance Heat
Your expensive electric emergency heat strips run continuously instead of the ultra-efficient compressor.
Circulating Pump Humming or Seized
Loop fluid stops circulating, preventing heat exchange between the earth and your indoor unit.
Mineral Scaling in Open Loop Systems
Hard well water deposits build up inside the heat exchanger, drastically lowering heating output.
Acidic or Degraded Glycol Fluid
Old antifreeze fluid breaks down over time, risking freeze damage and internal pipe corrosion.
Heat Pump Won't Switch to AC Cooling
The reversing valve solenoid sticks, leaving the system locked in heating mode during hot summer days.
Our Easy 4-Step Geothermal Process
Harnessing the earth's natural thermal energy is straightforward and rewarding.
Property Evaluation
We examine your soil conductivity, lot dimensions, and building heat load to choose the best loop design.
Loop Field Installation
We drill vertical boreholes or excavate horizontal trenches, install HDPE pipe, and backfill with thermal grout.
Heat Pump Integration
Our certified mechanics install the indoor water-to-air unit, flow center, and desuperheater connection.
Purge, Test & Save
We purge all air, fill eco-glycol, test COP thermal output, and hand over a 70% energy-saving system.
Geothermal Maintenance & Estimates
Transparent pricing with zero hidden fees for diagnostics, flushes, and new geothermal installations.
Complete health check for your indoor heat pump unit and flow center.
- Loop temperature delta-T test
- Glycol freeze point & pH test
- Refrigerant pressure verification
- Flow center pump electrical check
Dedicated commercial cart purging to restore low loop pressure and clear air locks.
- High-volume flush cart air purge
- Static pressure rebalancing
- Loop leak detection audit
- Includes system reset & test
Complete ground loop field + indoor heat pump installation consultation.
- Detailed geology & sizing quote
- Clean-energy tax grant assistance
- 50-Year loop field warranty
- 10-Year heat pump warranty
What Our Geothermal Clients Say
Read how ON TIME HVAC helped Ontario property owners slash their energy bills and enjoy eco-friendly comfort.
"Our rural property in Breslau had expensive propane heating. ON TIME installed a 4-ton horizontal loop geothermal system and our monthly heating expenses dropped by nearly $400 every winter month. Incredible engineering!"
"Our existing geothermal unit locked out on low pressure. Another company wanted to replace the whole pump for thousands. ON TIME brought their purge cart, flushed air from the loop, re-pressurized it, and it's been humming perfectly ever since."
"We have in-floor radiant heating paired with their geothermal system. Walking barefoot on warm ceramic tile in January with near-zero heating noise is the best investment we ever made in our house."
Geothermal FAQs
Common questions regarding ground-source heat pump operation, ground loop fields, and energy savings.
How does a geothermal heat pump work in Canadian subzero winters?
What is the difference between horizontal and vertical ground loops?
How long does a geothermal system last?
Can geothermal also cool my house in the summer?
What maintenance is required for a geothermal system?
Ready to Slash Your Heating & Cooling Costs?
Contact our certified geothermal engineers today for a free property feasibility assessment and clean energy savings projection.