New Construction in Broussard and the Geothermal Advantage
Broussard has been one of the fastest-growing cities in Lafayette Parish, with new subdivisions pushing south along Highway 90 and east toward Youngsville. If you’re building a new home in one of these developments, the construction phase is the cheapest time to install a geothermal system. The ground is already being excavated for foundations and utilities, and adding loop trenches to that process costs far less than tearing up an established yard later.
For existing homes along the Ambassador Caffery corridor, in the neighborhoods around Saint Julien Park, or in the older sections near downtown Broussard, retrofit installations are still viable. Vertical bore loops make geothermal possible on lots that don’t have room for horizontal trenching.
The Efficiency Gap Between Geothermal and Everything Else
Every HVAC system has an efficiency rating, and the differences are enormous.
A standard gas furnace runs at 80 to 95 percent efficiency, meaning some of the fuel you pay for goes up the flue as waste heat. A conventional air conditioner or air-source heat pump moves heat using outdoor air, but its efficiency drops as outdoor temperatures climb. On a 100-degree August afternoon in Broussard, your air conditioner is fighting against that heat while trying to cool your house.
A geothermal system sidesteps that problem entirely. Underground, the temperature stays around 67 degrees regardless of what’s happening at the surface. The system exchanges heat with that stable, moderate temperature instead of the sweltering outdoor air. The result is 300 to 500 percent efficiency, and it doesn’t degrade when the weather gets extreme.
Your heating and cooling costs typically drop 40 to 60 percent after installing geothermal.
What Goes Underground
The loop field is the defining feature of a geothermal installation. It’s a continuous circuit of high-density polyethylene piping buried in your yard, filled with a water and antifreeze solution that circulates continuously.
Horizontal layouts work for most Broussard lots with decent yard space. Trenches run four to six feet deep across an open area. A typical residential system needs about 1,500 to 2,000 square feet of ground for the loop field. Once backfilled and re-sodded, nothing is visible above grade.
Vertical systems use bore holes drilled 150 to 300 feet deep when yard space is limited. These are common in tighter subdivision lots where horizontal trenching isn’t practical.
Both configurations connect to an indoor heat pump unit that handles the actual heating and cooling of your home. There’s no outdoor condenser, no fan noise, and no unit sitting next to your house collecting leaves and corroding in the humidity.
What the Payback Looks Like Now
The federal credit that applied to the complete system cost, loop field and labor included, ended for systems placed in service after December 31, 2025. Broussard homeowners who commissioned a system in 2025 or earlier can still claim it on that year’s return. For new installations the economics rest on running cost, which typically falls 40 to 60 percent.
Combined with monthly energy savings, most Broussard homeowners reach the break-even point within several years. After that, the savings continue for decades. The ground loop lasts 50-plus years with essentially zero maintenance, and the indoor unit runs 20 to 25 years.
Start with a Site Assessment
Not every lot or home is an ideal candidate for geothermal, and we’d rather tell you that up front than sell you a system that underperforms. Soil conditions, lot geometry, existing ductwork, and electrical capacity all factor into the design.
F & R Air Conditioning evaluates each property individually. We’ve worked throughout Lafayette Parish since 1956 and understand the soil and water conditions across the region. Call (337) 893-5646 to schedule a geothermal assessment for your Broussard property.