Annual Service
Keep your ground-source heat pump running within safe pressure and concentration ranges all year round.
What Goes Wrong
A routine HVAC call covers the indoor unit. Geothermal maintenance covers the full fluid circuit, and that gap is where faults develop.
Propylene glycol concentration drops gradually over time and shows no symptom until a sharp cold snap causes freeze damage to the loop.
A refractometer test confirms the glycol-to-water ratio is within the manufacturer’s specified range before the Puget Sound heating season.
Loop pressure can decline over months without triggering an alarm, masking a small leak until flow drops enough to cause poor heating.
Static loop pressure is measured and logged each visit, so a gradual trend is caught and traced before it becomes a repair call.
Older Seattle homes with forced-air ductwork accumulate dust faster, and a clogged filter strains the circulation pump and reduces heat transfer.
Filter condition is checked against the recommended replacement interval for the specific unit, not assumed to be fine since the last visit.
A loose electrical connection at the control board causes faults that are hard to reproduce during a repair call but easy to find during a scheduled visit.
Every electrical connection at the control board and terminals is checked and tightened as part of the standard maintenance sequence.
What’s Covered
Each item below is part of the standard annual visit sequence carried out by a local geothermal contractor.
Static pressure is measured and logged to catch any gradual decline that signals a developing leak in the ground loop.
Propylene glycol concentration is tested to confirm it sits within the manufacturer’s specified freeze-protection range.
The heat exchanger coil is cleaned to restore heat transfer efficiency and prevent the unit from running longer than necessary.
The filter is inspected and replaced on the recommended interval, accounting for dust load in homes with forced-air ductwork.
The drain line and pan are cleared to prevent water backup that can damage the cabinet and trigger a safety shutoff.
Refrigerant pressure is measured against the rated operating range for the specific unit model to confirm the charge is correct.
Setpoint accuracy is verified against actual output.
Flow rate and pump operation are checked for wear.
All control board terminals are inspected and secured.
Findings and any early-wear notes are documented.
Why Choose Us
We connect you with vetted local geothermal contractors who follow a documented visit sequence and provide a written summary every time.
Every visit ends with a written summary of findings, so you have a clear record of loop pressure, glycol concentration, and component condition.
Any repair or part replacement is quoted separately and in writing before the contractor proceeds, no surprise charges after the visit.
Our partners work specifically on ground-source heat pumps, not general HVAC, so the ground loop and fluid circuit get proper attention.
We arrange visits ahead of the Puget Sound heating season so loop pressure and antifreeze checks are done before cold weather arrives.
Annual scheduled visits suit Seattle rental properties and multi-unit buildings, reducing the risk of mid-tenancy breakdowns and call-outs.
How It Works
01
Share the property type, the unit model if known, and when the last service visit took place so we can match you with the right contractor.
02
A local geothermal contractor reviews your details and provides an itemized quote covering the visit scope before any work is booked.
03
The contractor carries out the full maintenance sequence and hands you a written summary of all findings and any components flagged for attention.
Pricing Estimates
| Job | Typical cost |
|---|---|
| Routine maintenance visit | $150-$300 |
| Seasonal tune-up | $200-$350 |
| Maintenance with filter and minor adjustments | $250-$450 |
Tell us the property and the unit details. We connect you with a local geothermal contractor who will quote the visit in writing before any work begins.