Public sources checked October 20–21, 2026. Dates below identify each provider’s evidence check.
Geothermal service is available through several different arrangements: a lease for a home’s system, access to a provider-owned ground loop, or an energy service agreement for a development. The useful starting point is your building and location. An offer for a new condominium project may have little relevance to an existing detached home.
This comparison identifies published offers, their stated reach and the responsibilities providers describe. A public offer does not confirm that your address qualifies. Where terms are missing or public descriptions disagree, those gaps are shown below. For financing concepts, see our geothermal financing guide.
Start with your property
| Your situation | Offers worth checking | Availability limit |
|---|---|---|
| Existing US single-family home | Upstream through Total Comfort in Maryland; Palmetto through participating installers, including Hartzell in Oklahoma; Monarch in New Hampshire/New England | These are advertised routes. Installer capacity, site suitability and the actual agreement still need confirmation. |
| New US homes or a housing development | Dandelion’s builder financing, including its separate Diverso partnership; Orca; EcoSmart GeoGrid | A national financing announcement or named project does not establish service at every address. |
| Canadian condo, rental or low-rise development | Diverso; Enwave GeoCommunities; Subterra; TerraSource | The public evidence principally describes development and building-scale arrangements. Broad individual-home retrofit enrollment was not verified. |
| Property in Edmonton’s Blatchford community | Blatchford Renewable Energy | A community thermal utility; it cannot be selected for a property elsewhere in Edmonton. |
The linked provider sections below explain the evidence for these routes. This is a comparison of offers, not a ranking of service quality or a complete market census.
Canadian providers and community services
Diverso Energy — development utility model
Sources checked October 20, 2026.
Diverso offers a provider-owned geoexchange system for condo and rental developments, plus a low-rise community offering. Its Upper Joshua Creek project is in Oakville, Ontario; its Mattamy partnership announcement concerns select developments across Canada. Neither establishes open enrollment for every Canadian homeowner.
Under its utility model, Diverso designs, builds, owns and operates the system. The building owner pays over the agreement, with charges typically recovered from occupants through submetering. Diverso advertises a 30-year ownership and operating commitment; the project agreement needs to establish the applicable term and scope.
Published pages do not provide a standard fee schedule, escalation formula, sale-transfer terms or customer buyout. The precise split between the ground system, central equipment and in-suite heat pumps also needs confirmation. Diverso’s separate Design/Build Buyback model means Diverso acquires the developer-funded system after construction; it is not a homeowner purchase option. See the Diverso directory profile for the existing listing.
Enwave GeoCommunities — building and development service
Source checked October 20, 2026.
GeoCommunities targets condominiums, higher-density developments and single-family developments. Enwave reports operating condominium systems in Toronto’s core. The inspected offer page does not publish a complete service territory or establish individual existing-home retrofit eligibility.
Enwave owns and operates the borefield, including pipes and pumps, and operates the heat exchanger connecting it to the building’s HVAC. It says it constructs, owns, operates and maintains the contracted system during the agreement, then transfers ownership to the building owner or owners when the contract expires.
The page does not publish a standard duration, price, escalator or early-exit schedule. Indoor-unit coverage, replacement exclusions and electricity allocation need to be specified in the agreement.
Subterra Renewables — Energy as a Service
Sources checked October 20, 2026.
Subterra’s current services include Energy as a Service for residential mid/high-rise, institutional, commercial, industrial and district applications. It also operates existing systems and offers asset acquisition. These services do not establish that every existing house is eligible.
A 2023 partner announcement describing Aura marketed the service across North America and described fixed-price contracts of 25–50 years, without upfront capital, followed by customer ownership. Those are historical published terms, not a confirmed current tariff or universal contract.
The current page offers operations, maintenance and monitoring but does not establish a standard term or price. Request the current territory, covered equipment, repair and replacement duties, electricity charges, transfer rules and exit terms for the specific project.
TerraSource / GeoTility — access to an exterior ground loop
Sources checked October 20, 2026.
TerraSource’s projects include British Columbia developments. Its developer service describes infrastructure installed as homes are built; individual retrofit acceptance is unconfirmed.
The published utility offer covers the exterior ground heat exchanger and connection to the building’s exterior wall. It requires property access rights and describes a one-time connection fee plus a monthly access fee. Annual increases are capped at the Consumer Price Index; public fee amounts are not supplied.
TerraSource promises exterior-system inspections, maintenance and repairs, including a minimum 25-year maintenance/repair commitment. That commitment does not establish every agreement’s exact duration. Indoor heat-pump coverage, exterior replacement, sale transfer, termination and end-of-term ownership remain questions for the contract.
Blatchford Renewable Energy — an operating community utility
Sources checked October 20, 2026.
Blatchford Renewable Energy serves Edmonton’s Blatchford community, including townhouses and multi-unit buildings. Its district system uses geoexchange alongside other thermal sources.
Customers pay under public utility tariffs, with rates set annually, rather than a published long-term fixed-price lease. The equipment boundary depends on the building. Townhouse guidance assigns indoor heat-pump operation and maintenance to the resident. For condominiums, the utility owns, services and replaces energy-transfer-station equipment.
Closing a customer billing account when moving does not by itself establish a right to disconnect a property. The service terms require consent for assignment. Check the applicable connection and service agreement for the building; this is not a portable geothermal offer elsewhere in the city.
US providers and installer routes
Upstream through Total Comfort — a Maryland homeowner route
Sources checked October 20–21, 2026.
Total Comfort advertises Upstream leasing to qualified Maryland homeowners, with Upstream owning the system and Total Comfort installing the loop and indoor heat pump. Its lease announcement describes fixed payments over 20 years, purchase opportunities at years 6 and 12, and transfer on a home sale. The amount due, transfer conditions and exit costs need the actual lease.
Maintenance needs clarification before signing. Upstream’s FAQ assigns maintenance to the homeowner, while its maintenance page says major maintenance and repairs are handled through providers and its general terms say regular maintenance is included. These public descriptions do not resolve who pays for every repair, uncovered labor or later equipment replacement. Obtain one written schedule for the loop, heat pump, parts, labor and routine service.
An October 2025 Dandelion announcement also named New York and Connecticut retrofit customers. Current enrollment for that route was not confirmed on the inspected leasing page; the announcement should not be treated as present address eligibility.
Dandelion–Diverso — a separate builder financing route
Sources checked October 20–21, 2026.
Dandelion’s March 2026 Diverso announcement describes expanded national financing capacity for builders and new homes, with partners financing, installing and owning the geothermal system. Its leasing page still describes a 16-state footprint. Those different scopes do not establish a complete current acceptance map, particularly for retrofits.
The inspected US material does not publish a full service agreement establishing duration, escalation, transfer, buyout, end-of-term treatment or the precise indoor/outdoor ownership and maintenance split. Upstream’s lease terms and Canadian Diverso terms should not be applied to this separate US offer.
Orca Energy / GeoTility — outdoor infrastructure for developments
Sources checked October 20–21, 2026.
Orca’s published projects include Serenbe in Georgia and Sage at Maple Lawn in Maryland. Its offering covers residential and larger-building developments; these examples do not confirm individual existing-house enrollment or a universal retail service area.
Orca’s equipment boundary separates the provider-owned exterior system from the building owner’s indoor heat pump and distribution. The GeoTility offer describes a connection fee, monthly access charges and annual increases capped at CPI, without publishing the fee amounts.
It promises exterior inspections, maintenance and repairs, including a minimum 25-year maintenance/repair commitment. Confirm the contract length separately. Current public pages do not settle exterior replacement, transfer, early exit, buyout or end-term ownership. Indoor equipment service remains the building owner’s responsibility.
EcoSmart Solution — GeoGrid for projects and connected communities
Sources checked October 20–21, 2026.
GeoGrid is offered for projects including multifamily new construction, mixed-use and adaptive reuse. EcoSmart’s resident guidance names Whisper Valley in Austin, Texas, and NOVO Avian Pointe in Apopka, Florida. This establishes specific community service, not a nationwide standalone-home subscription.
The resident infrastructure fee covers routine maintenance, emergency response, monitoring and long-term upkeep. EcoSmart describes its service boundary as the backyard connection box; indoor equipment, ductwork and leaks between that box and the heat pump are directed to the builder or warranty provider.
Ownership must be checked by project. At Whisper Valley, homeowners own equipment on their lot and inside the home through the home purchase, while EcoSmart owns district infrastructure. Not every buried component is provider-owned. The inspected guidance does not publish a standard fee amount, duration, escalator or buyout/termination schedule.
Palmetto Geothermal Plan — through participating installers
Sources checked October 20–21, 2026.
Palmetto’s September 2026 program guide describes a ten-year lease for single-family homes, with finance-program availability in every US state except Minnesota. Palmetto's overview describes a third-party ownership structure in which Palmetto owns the system during the lease. That is not a promise of an installer or accepted site in every state. Hartzell, which identifies itself as an approved Palmetto partner, provides a named Oklahoma route for new construction and full-system replacement.
Palmetto’s geothermal warranty guide describes ten-year parts/labor coverage and annual maintenance. Hartzell advertises two service visits per year and a filter allowance with a cap; labor beyond the manufacturer allowance requires approval. Confirm the installer’s exact package and exclusions; parts-and-labor coverage does not establish unlimited whole-system replacement.
The program overview has conflicting escalation descriptions, and the exit guide uses differing buyout and fair-market-value language. For home sales in years 1–5, the guide describes transfer subject to buyer qualification and agreement; purchase, renewal and removal have conditions and charges. Get the actual payment schedule and exit provisions rather than relying on a headline end-of-term percentage.
Monarch Geothermal — a qualified local subscription lead
Sources checked October 20–21, 2026.
Monarch advertises a home-system subscription in New Hampshire/New England. It says it retains ownership and provides annual maintenance, while its service explanation describes handling repairs. Electricity is additional to the subscription payment.
The published material leaves the duration, payoff formula, full replacement duties and general end-of-term terms unresolved. Treat this as a local offer to investigate, subject to site assessment and a written agreement, rather than a fully documented national program.
Compare the responsibilities before the monthly payment
A fee for exterior loop access does not buy the same service as a lease covering a heat pump and loop. TerraSource and Orca describe an exterior service boundary; EcoSmart identifies a connection-box boundary; Enwave connects its system to the building’s HVAC. Upstream’s conflicting maintenance descriptions show why ownership alone cannot answer who pays for repairs.
Ask each provider for the same written information:
| Contract question | What to establish |
|---|---|
| Who is responsible? | Exact lessor or utility, equipment owner, installer and service contractor; which company owes each obligation. |
| What qualifies? | Accepted address, building type, new-build or retrofit status, site requirements and any minimum project size. |
| What will you pay? | Upfront and connection charges, recurring fees, escalation, minimum bills, metering and electricity. |
| Who fixes what? | Separate routine maintenance, repairs and replacement for the loop, pumps, indoor heat pump, controls and distribution; parts, labor, exclusions and response commitments. |
| What happens when circumstances change? | Sale assignment and buyer qualification, early termination, purchase options, renewal, removal and end-term ownership. |
Published offers are useful for building a shortlist. The agreement is what resolves the missing terms. For building design considerations, use the commercial geothermal guide. To explore local installation support, find a geothermal contractor and ask which service or lease programs it actually participates in; a directory listing alone does not establish participation.