Looking for a geothermal installer in Mandeville, LA? Describe your project once and up to three geothermal installers who work in Mandeville and St. Tammany Parish get back to you with a quote. It's free and there is no obligation.
Mandeville is home to about 12,973 people (2024 Census Bureau estimate), a growing community (+1.1% since 2020). With 1,402 people per sq mi, it is a suburban area. Homes with yards and long heating seasons are good candidates for geothermal systems here.
Mandeville at a glance
- Population (Census Bureau estimate, 2024)
- 12,973 (+1.1% since 2020)
- Rank in Louisiana
- 26th of 304 cities and towns
- Land area
- 9.3 sq mi
- Population density
- 1,402 people per sq mi (suburban)
- Type
- City (Mandeville city)
- Main county
- St. Tammany Parish
What to check before hiring in Mandeville
- Permits: in Louisiana, vertical loops may need a well or drilling permit in addition to the mechanical permit.
- Design: ask for a load calculation and loop design.
- Incentives: check current utility and state programs.
- Price drivers: loop type and length, drilling conditions and the unit.
Useful official resources
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U.S. Department of Energy: geothermal heat pumps
Official information and guidance.
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ENERGY STAR
Official information and guidance.
Services available in Mandeville
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Geothermal heat pump system
Design and installation of a ground-source heat pump with vertical or horizontal loops.
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Geothermal repair or replacement
Repair or replacement of the heat pump unit on an existing loop.
Frequently asked questions in Mandeville
How much does geothermal cost in Mandeville, LA?
It depends on the loop, the drilling and the unit. Describe your home: installers who serve Mandeville reply with a quote.
How long does installation take?
Often one to two weeks, including loops.
Will my yard be torn up?
Temporarily; ask about restoration.
Which geothermal installers will contact me?
Up to three independent geothermal installers who serve Mandeville and the surrounding area, chosen for the service you need. Your details are shared only with your consent.
Source: U.S. Census Bureau, Population Estimates Program (Vintage 2024) and Gazetteer Files (public domain), imported on 10/31/2026. Figures describe the incorporated place or county as published; they are shown for information only.