Save up to 80% on heating & cooling — DFW's geothermal specialists
1,000+ installations. 25+ years of experience. A+ BBB rated. The only DFW contractor that drills the wells, installs the system, and services it — all under one roof.
Built on trust, driven by results
With over 25 years in HVAC and 1,000+ geothermal installations across Dallas–Fort Worth, Excel Geothermal is the region's most experienced geothermal contractor. Owner Roy Schar personally oversees every project — from design through commissioning.
We're the only DFW geothermal company that owns its own drilling rigs, employs its own insulation crews, and designs its own ductwork. No subcontractors. No finger-pointing. One team accountable for your entire system.
Learn more about us
Geothermal HVAC services
Geothermal installation
Complete residential and commercial system design, installation, and commissioning — all under one roof. WaterFurnace and ClimateMaster authorized dealer.
Read moreGeothermal well drilling
In-house drilling rigs for vertical bore projects up to 22,000+ feet on a single job. No subcontractors — our crew handles every bore from start to finish.
Read moreRepair & maintenance
24-hour emergency service, seasonal tune-ups, and system diagnostics by NATE-certified technicians. Keep your system running at peak efficiency.
Read moreThe earth under your yard is already 67°F
A geothermal loop works like a cave — about 67–69°F below 20–30 feet of North Texas soil, no matter what the weather does. Your system simply trades heat with that steady temperature instead of fighting the outdoor air.
In summer, it moves your home's heat into cool earth. In winter, it pulls that stored warmth back up. That's how it reaches a COP of 4–5 — about 400–500% efficient.
- The wells are one-time infrastructure. Drill once, and the loops are designed to last 50+ years — through several generations of equipment.
- The system pays for itself. Electricity savings of 50–80% typically pay back the investment in 5–10 years.
- We do every step in-house. Drilling, HVAC, spray foam, and ductwork — one crew, no subcontractors.
Your electric bill, before and after geothermal
Same house, same Texas summers. An illustrative all-electric DFW home, with heating and cooling costs cut by 50–80%.
Peak cooling season in DFW
That's $300 staying in your pocket in the hottest month of the year.
≈ $2,100 a year stays in your pocket on this illustrative home.
The biggest cuts land in July and August — exactly when ERCOT rates bite hardest.
Below 25 ft the earth holds 67°F all year — your loops never see a heat wave or a hard freeze.
North Texas is built for geothermal
Three local facts make DFW one of the best places in the country to put heat exchange underground.
The Blackland Prairie — downtown Dallas on the horizon
Dallas clay is a gift
The dark Blackland Prairie clay under most of DFW holds moisture and conducts heat well — ideal ground for a loop field. Our rigs drill this exact clay-and-limestone column every week, so bore depths and loop sizing aren't guesswork.
ERCOT rates keep climbing
Texas residential electric rates have risen from roughly 12¢ per kWh in 2021 to over 15¢ today. Every rate hike makes a 400–500% efficient system worth more — your savings grow as the grid gets pricier.
20+ days over 100°F
A typical Dallas summer brings 20 or more days at 100°F and up. A conventional condenser has to shove heat into that 100°F air. Geothermal rejects it into 67°F earth — the hotter the day, the bigger its advantage.
Myth: geothermal doesn't work in hot climates
Fact: it works best here. Cooling is a heat-moving job, and moving heat into 67°F ground is far easier than pushing it into 105°F air. Texas summers are geothermal's home turf.
Myth: the underground loops wear out
Fact: the buried pipe is designed to last 50+ years — it's one-time infrastructure, like your foundation. Only the indoor equipment gets replaced, roughly every 20–25 years.
Remember Winter Storm Uri?
In February 2021, heat pumps that depend on outdoor air struggled and gas furnaces went dark. Our geothermal customers kept drawing heat from 67°F earth the whole week. The ground doesn't care what the grid or the weather is doing.
Quick glossary — four words that cover most of geothermal:
Featured projects
Home Run Alley — 55-ton geothermal system
55 wells at 400 ft, 48,000 ft of loop, WaterFurnace equipment, spray foam, and custom spiral duct — all installed by one crew.
Vertical wells on a suburban lot
Compact rigs let us drill 200–400 ft bores in a typical backyard — in Plano, Frisco, McKinney, and beyond.
Horizontal loop field on acreage
With room to trench, horizontal loops cut drilling cost. We design and dig both types in-house.
Trusted by DFW homeowners
John Marwarski · Google Review"Roy and his team were exceptional from start to finish. The entire process was smooth and professional. Our energy bills have dropped dramatically since the geothermal system was installed. Highly recommend Excel Geothermal to anyone considering the switch."
Lori G. · Google Review"We had Excel Geothermal install a complete system in our new construction home. Roy personally oversaw the drilling and installation. The difference in comfort compared to our previous conventional system is night and day. Our utility bills are a fraction of what they used to be."
Kenner Link · Verified Customer"Excel Geothermal is the real deal. Roy and his team drilled the wells, installed the heat pump, did the ductwork, and even handled the spray foam insulation. One company, one point of contact, zero headaches. Can't recommend them highly enough."
Frequently asked questions
A typical residential system in DFW runs $25,000–$65,000, depending on home size, soil conditions, and configuration. The upfront cost is higher than conventional HVAC — but heating and cooling costs drop 50–80%, and most systems pay for themselves in 5–10 years.
Yes. A geothermal heat pump runs at a COP of 4–5 — about 400–500% efficient — while the best gas furnace tops out near 98%. Our DFW customers typically save $150–$400 a month. Over a 20-year equipment lifespan, that's $36,000–$96,000.
Vertical bores in DFW typically go 200–400 feet deep. A 3–5 ton residential system needs about 3–5 bores, sized to your home's cooling load. Our own in-house rigs handle every bore — no subcontractors.
In almost every measurable way, yes. On a 105°F afternoon it rejects heat into 67°F earth instead of scorching air, runs nearly silently with no outdoor unit, and the equipment lasts 20–25 years while the loops are designed to last 50+. During Winter Storm Uri, our geothermal customers stayed warm while conventional systems failed.
Do the math for your own home
What geothermal costs in DFW
Transparent pricing, what drives it up or down, and how it compares over 20 years.
See real numbersSavings calculator
Plug in your square footage and current bill — see your payback period in seconds.
Estimate my savingsGeothermal vs conventional
A side-by-side on efficiency, lifespan, noise, and how each held up during Uri.
Compare systems