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About Seattle Geothermal

We arrange local geothermal contractors to assess your property, size the system, and return a written quote.

A geothermal heat pump installation job seen in full

How We Work

Connecting Seattle property owners with ground-source heat pump contractors

We exist to make geothermal heating and cooling accessible, starting with a clear process and a written quote before anything is dug.

An aging gas furnace at end of life, heating bills that keep climbing, or a new build where geothermal makes sense from the ground up, these are the situations we work with. You tell us the property, the current heating setup, and what the yard or site access looks like. We connect you with vetted independent local tradespeople who do the actual ground-source work.

The local geothermal contractor visits the site before any sizing happens. They assess the lot for horizontal trenching or vertical bore feasibility, measure the heating and cooling load, and return a written quote that separates the ground loop, the indoor unit, and the permit fees. No costs are bundled into a lump sum where they are hard to compare or question.

Once you accept the quote, the installer handles the full scope: excavation or boring, loop field installation, heat pump and distribution work, whether that is ductwork integration or radiant, capacity verification, and startup and commissioning. They also identify the Seattle City Light rebates and federal tax credits that apply to your project, so you are not left to find those on your own.

Nothing is dug until you have reviewed and accepted a written scope of work. That is the standard we hold every enquiry to, because a ground-source system is a long-term investment and the details matter before the first shovel goes in.

Our Mission

We exist to make geothermal heating and cooling accessible for Seattle property owners by arranging site assessments, itemized quotes, and qualified local installers who handle every step.

  1. Clarity

    Every quote itemizes ground loop, indoor unit, and permit fees separately.

  2. Specificity

    System sizing follows a site assessment, not a generic square-footage estimate.

  3. Scope

    The installer covers trenching or boring, heat pump, distribution, and commissioning.

  4. Accessibility

    Rebates and tax credits are identified as part of the quote, not left to the owner to find.

The Process

From your first enquiry to a commissioned system

Request a Quote

  1. 01

    Describe Your Property

    Tell us the address, the current heating setup, and the available yard or site access. The more detail you give, the more accurate the initial conversation with the installer will be.

  2. 02

    Arrange a Site Assessment

    We pass your enquiry to a local geothermal contractor. They visit the property, assess lot conditions for horizontal trenching or vertical bore, and measure the actual heating and cooling load.

  3. 03

    Review an Itemized Quote

    The installer returns a written quote that separates the ground loop, the indoor unit, and permit fees. Applicable Seattle City Light rebates and federal tax credits are identified at this stage.

  4. 04

    Approve & Begin Work

    Once you accept the written scope, the installer handles excavation or boring, loop field, heat pump, distribution, capacity verification, and startup. Nothing is dug before you sign off.

Common Questions

What people ask before getting started

Do you install geothermal systems yourselves?

No. Seattle Geothermal takes your enquiry and arranges a local geothermal contractor to assess the site, size the system, and carry out all physical work. The installer handles trenching or boring, the heat pump, distribution, and startup. We coordinate the process; the contractor does the hands-on work.

What does the written quote include?

The quote separates three cost areas: the ground loop and loop field work, the indoor heat pump unit and distribution connection, and the permit fees. Nothing is bundled into a single figure. Seattle City Light rebates and federal tax credits that apply to the project are also identified at this stage.

How does the installer decide between horizontal trenching and vertical bore?

That decision is made at the site assessment, not before. The installer checks yard dimensions, soil conditions, and site access. Horizontal trenching suits larger plots with accessible ground; vertical bore is used where space is limited. The written quote reflects whichever method the site requires.

What happens if I delay replacing an aging furnace?

A furnace past its service life can fail mid-winter, leaving you without heat and facing emergency replacement costs under time pressure. Arranging a geothermal site assessment now means the system is sized, permitted, and installed before a breakdown forces the decision. Permit timelines in Seattle can add several weeks to a project.

Are there permits required for geothermal installation in Seattle?

Yes. Ground-source heat pump work in Seattle typically requires mechanical and excavation permits. The installer identifies the required permits during the site assessment, and permit fees are listed as a separate line item in the written quote. Work is scheduled only after permits are confirmed.

Arrange a Site Assessment & Written Quote

Tell us the property, the current heating setup, and the site access. We arrange a local geothermal installer to assess and quote the work.

Request a Quote