Louisiana has 20 verified geothermal contractors and is a cooling-dominated geothermal market with extreme summer load — ground-source delivers strong COP advantages over conventional AC in Louisiana's Gulf Coast climate. Federal §25D was terminated by the One Big Beautiful Bill Act (P.L. 119-21) on December 31, 2025, but Entergy Louisiana + Cleco rebates and the §48 commercial credit keep ground-source competitive.
- 20 verified contractors
- 15 cities covered
- ★ 4.9 avg rating (8,164 reviews)
- 1 WaterFurnace dealers
- 1 IGSHPA-certified
Top Louisiana cities for geothermal contractors
Coverage spans New Orleans, Baton Rouge, Shreveport, Lafayette. Browse contractors by city below.
Featured Louisiana geothermal contractors
Louisiana geothermal incentives in 2026
The federal §25D Residential Clean Energy Credit was terminated for new residential expenditures completed after December 31, 2025 by the One Big Beautiful Bill Act (P.L. 119-21). 2025 installations carry forward via IRS Form 5695. Louisiana homeowners benefit from:
- Entergy Louisiana + Cleco — Entergy Louisiana and Cleco energy efficiency programs.
- Federal §48 commercial credit remains active through 2034 with phase-down; widely used in third-party-owned residential leases.
For state-by-state matrix see geothermal rebates by state, and use our geothermal tax credit calculator.
Louisiana climate, ground conditions, and permits
Louisiana climate is humid subtropical (Cfa). Ground temperatures at typical loop depth stay around 67–71°F. Mississippi River alluvial sediments south, Coastal Plain sediments elsewhere. Shallow water tables affect drilling in many parishes.
Closed-loop installations require a Louisiana Department of Environmental Quality (LDEQ)-licensed well driller, a Louisiana State Licensing Board for Contractors mechanical license, and a local building permit covering the indoor unit and electrical service. For permit specifics see our geothermal permit lookup.
Frequently asked questions
How much does geothermal cost in Louisiana?
A typical 3-ton residential system in Louisiana runs $20,000 to $34,000 installed depending on loop type, soil conditions, and location. Utility rebates from Entergy Louisiana + Cleco reduce out-of-pocket cost. Federal §25D no longer applies to 2026 residential installations.
Do I need a permit for geothermal in Louisiana?
Yes. Closed-loop installations require a Louisiana Department of Environmental Quality (LDEQ)-certified well driller, a state-licensed mechanical contractor, and a local building permit covering the indoor unit and electrical service. Reputable Louisiana contractors handle the full permit pull.
Vertical or horizontal loops in Louisiana?
Lot size and soil determine loop type. Vertical bores dominate dense suburbs; horizontal loops are cost-competitive on rural lots with adequate land area (1,500–3,000 sq ft per ton). Pond loops work where adequate water access exists. An IGSHPA-trained designer matches loop type to your specific lot, soil, and load.