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Geothermal Services

Fast diagnostics • Honest options • Locally Owned-Serving Des Moines Metro & surrounding communities

GEM Heating & Cooling provides geothermal repair, maintenance, and installation across the Des Moines Metro & surrounding communities, including Waukee and Johnston. If your system isn’t keeping up, short-cycling, or showing error codes, we’ll diagnose the real cause and walk you through clear options to restore comfort and efficiency.

Common Geothermal Service calls:

  • Not heating or cooling well

  • System short-cycling or running constantly

  • Error codes or lockouts

  • Uneven temperatures between rooms

  • Poor airflow or weak performance at vents

  • Water/condensate leaks at the unit

  • Noisy operation, vibration, or rattling

  • Higher electric bills / reduced efficiency

  • Thermostat or control issues

  • Routine maintenance request

Geothermal Services We Handle:

  • Geothermal diagnostics & troubleshooting

  • Repair of common components (controls, sensors, contactors, capacitors)

  • Water/loop-side checks (flow/pressure basics where applicable)

  • Pump/flow center and circulator-related troubleshooting (as applicable)

  • Airflow & performance checks (temp split, static basics when applicable)

  • Thermostat setup, calibration, and control options

  • Preventive maintenance and efficiency checkups

  • Repair vs. replacement guidance with clear options

  • Geothermal system installation and replacement (when it’s the best fit)

Our Geothermal Service Process

  1. Diagnose & confirm — We check system operation, airflow, controls, and key performance points to find the real cause.

  2. Clear options — You get straightforward repair vs. replacement recommendations and pricing.

  3. Repair/install & verify — We complete the work cleanly, verify performance, and review basic upkeep.

Book online to get on the schedule, or call if you need urgent heat/cool restored.

Maintenance Plan Option

​Our Maintenance Plan is an easy way to stay ahead of breakdowns and keep your system running efficiently. Members get priority scheduling, service discounts, and seasonal reminders—so you don’t have to think about it.

  • 2 seasonal visits per year (heating + cooling)

  • Priority scheduling during peak season

  • Discounts on repairs (parts/labor)

  • Reminders + documented service history

Geothermal FAQs

How long do geothermal systems usually last?

Many geothermal heat pumps last 15–25 years, and the ground loop can last much longer. Lifespan depends on maintenance and operating conditions.

Why is my geothermal system running but not heating/cooling well?

Common causes include airflow issues, control/sensor problems, low performance due to wear, or loop/flow-related issues (if applicable). We’ll diagnose the root cause and recommend the most cost-effective fix.

Do you work on most geothermal brands?

Yes—GEM services many common geothermal systems and will recommend the best next step after diagnosis.

Is geothermal maintenance worth it?

Yes, tune-up helps improve reliability, catch small issues early, and maintain efficiency—especially before peak seasons.

Can you repair a geothermal system or does it usually need replaced?

Many issues are repairable. If repairs are frequent or performance has declined significantly, we’ll walk you through clear repair vs. replacement options.

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