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Geothermal heat pump system

Geothermal System Services Across Central Iowa

A geothermal system draws on the steady temperature underground rather than the outdoor air, which is why it holds its efficiency through the coldest part of an Iowa winter. It is also the system the fewest contractors around here are equipped to diagnose. Obsidian Heating and Cooling covers all three: repair, maintenance, and installation.

We are veteran-owned and a Tempstar Elite Dealer. Ground-source work means diagnosing the buried loop as well as the equipment indoors, because a fault in either one looks the same from your thermostat.

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Ground Loop Diagnostics
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Up to 15-Year Warranty
Parts & Labor
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Our Geothermal Services

Loop, Equipment and Everything Between

Geothermal is a long-term investment, and it rewards a contractor who understands the ground loop as well as the heat pump it feeds.

Geothermal Repair

Inadequate heating or cooling, a drop in efficiency, or a system that will not hold pressure. Our process moves through pressure testing and ground loop diagnostics, compressor and electrical testing, then leak detection before any repair plan is written.

Geothermal Repair

Geothermal Maintenance

Ground-source equipment is built to run for a long time, and routine service is how you actually get that lifespan. Regular maintenance protects efficiency, which on a geothermal system is the whole reason you installed it.

Geothermal Maintenance

Geothermal Installation

Site survey through system optimization, including loop field design for your property. Our guide to geothermal tax credits in Iowa covers the incentives that apply to qualifying installations.

Geothermal Installation
Where To Start

Which Geothermal Service Do You Need?

Inadequate heating or cooling on a geothermal system can come from the loop, the compressor or the controls, and they all feel identical from indoors. That is why geothermal repair starts with pressure testing and loop diagnostics rather than a parts swap.

A geothermal system that costs more to run than it used to is telling you something. Reduced efficiency is often the first visible sign of a loop or circulation problem, and maintenance is what finds it before it becomes a repair.

New construction or a full system replacement is the right moment, because the loop field is the part you cannot retrofit cheaply later. Our installation page covers site survey through optimization, and the Iowa tax credit guide covers the incentives.

Geothermal costs more up front because of the loop field and returns it through efficiency and service life. An air-source heat pump installs faster and cheaper. Which one wins depends on your property and how long you plan to stay, and we are happy to price both.

Buying a house with an existing ground-source system is common around central Iowa, and most new owners have no service history for it. A baseline maintenance visit tells you what condition the loop and equipment are actually in.
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Talk Geothermal With Us

Service call or new system, start with a conversation:

Answering Your Questions

Frequently Asked Questions About Geothermal Systems

A buried ground loop exchanges heat with the earth, and a heat pump moves that energy between the loop and your home. Because ground temperature stays steady year-round, the system does not lose capacity on the coldest days the way air-source equipment can. It heats in winter and cools in summer from the same loop.

The common faults are inadequate heating or cooling, a drop in efficiency, ground loop pressure problems, and compressor or electrical failures. Several of those produce exactly the same symptom at the thermostat, which is why the diagnosis has to cover the buried loop as well as the equipment indoors.

Yes. Geothermal equipment is long-lived, but that lifespan assumes it is looked after. Routine service protects the efficiency that justified the system in the first place, and it catches loop and circulation problems while they are still cheap to correct.

It depends on your property and how long you plan to stay. Geothermal costs more up front because of the loop field and returns that through higher efficiency, a longer service life and available incentives. An air-source heat pump installs faster and for less money. We are glad to price both so you can compare them side by side.

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Schedule Geothermal Service in Des Moines

Ground-source systems deserve a contractor who reads the loop as carefully as the equipment. Obsidian Heating and Cooling services and installs geothermal across central Iowa, with an upfront estimate before any work begins.

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