Customer reviews

What Dallas–Fort Worth homeowners say about us

Every review below is from a real customer. Notice a pattern: lower bills, quieter homes, and the owner showing up in person.

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0

out of 5 — based on 0 Google reviews

5 stars

78

4 stars

0

3 stars

0

2 stars

0

1 star

7

78 of 85 reviewers gave five stars.

In their words

Real reviews, sorted by what they cover

★★★★★

"We had Roy install a geothermal system in our new build in Prosper. From the initial consultation through commissioning, the team was knowledgeable, punctual, and thorough. Our first summer utility bill was about 60% less than our old house."

Ron Weber
Google Review · Installation

★★★★★

"Excel Geothermal replaced our aging conventional system with a WaterFurnace geothermal unit. Roy personally supervised the drilling and installation. The comfort difference is remarkable — even temperatures throughout the house and virtually silent operation."

Scott Jeffries
Google Review · Installation

★★★★★

"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. Cannot recommend them highly enough."

Kenner Link
Google Review · Drilling

★★★★★

"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."

Lori G.
Google Review · Installation

★★★★★

"Outstanding experience. Roy took the time to explain everything about how the system works, what to expect during installation, and how to maximize efficiency. His team was professional and cleaned up after themselves. Could not be happier with the results."

Wilco Ravestijn
Google Review · Service

★★★★★

"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."

John Marwarski
Google Review · Service

Video review

How to vet a geothermal installer — from a homeowner who did the homework

“Who's installing the well? Who's installing the equipment? Who's servicing the units? That's when I found Excel Geothermal.”

Wilco researched geothermal companies before his install and landed on three questions every homeowner should ask — then found one company that answers for all three. He also tells the story of calling on a Sunday and getting same-day service. Worth the three and a half minutes.

Wilco Ravestijn · Excel customer, ClimateMaster system

Reading between the lines

What reviewers mention most

We counted the themes across the six reviews above. The same four things keep coming up — and none of them is an accident.

4 of 6 mention dramatically lower utility bills — geothermal's COP of 4–5 (400–500% efficient) shows up on real statements.
4 of 6 mention Roy by name being on their job — the owner still personally oversees projects.
3 of 6 mention comfort: even temperatures, near-silent operation, no outdoor condenser.
2 of 6 mention one company doing everything — drilling, ducts, and foam without a single subcontractor.

Why the owner shows up in so many reviews

Excel does every trade in-house, so there is no handoff where quality can slip — and no sub to blame. When the same company drills your wells and warranties your heat pump, the owner has every reason to check the work himself.

Excel Geothermal service van ready for a customer visit in Dallas-Fort Worth

Customer story

An architect's road to a zero-carbon home

Dallas architect Jim Barnes had chased the idea since the 1977 oil embargo: take an ordinary house and get it to zero carbon emissions. The house he finally chose was a 1954 home in the neighborhood he grew up in — and the path ran through geothermal. Excel drilled the wells between the concrete runners of his driveway to keep the yard clean for landscaping, and the system now covers both his HVAC and his hot water.

After the install, Barnes removed the home's gas lines entirely. And he's honest about the math the way we like to be: he tells other homeowners a 50% cut in utility costs is the realistic number, with the savings compounding year after year — no new windows or re-insulated walls required. The wells, over half his project cost, are permanent infrastructure that will outlive every other component.

Zero gas lines ~50% lower utility costs HVAC + hot water, one system

Story by Alexandra Schar · photos courtesy of Jim Barnes

Read the full story

Excel Geothermal's drilling rig set up beside Jim Barnes' 1954 brick home in Dallas

1954home, now zero-carbon

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Project gallery

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Meet the team

The Roy these reviews keep naming — and the in-house crews behind him.