Why Cornerstone
A small company that acts like it.
No dispatcher, no call center, no rotating technician who has never seen your system before. You get one licensed person who answers the phone, does the work, and is still the one you are talking to next summer.
Veteran-owned
It shows up in the small things.
Showing up when we said we would is a standard, not a courtesy. Cleaning up after ourselves is part of the job, not a favor. Telling you the number before we touch anything is just honest work. None of that is a marketing angle — it is how we were trained, and it is how we still operate.
Verified through the Texas Veterans Commission.
What makes us different
Four things we will never make you guess about.
You get the owner
No dispatcher, no upsell script handed down from a corporate office. The person who answers the phone is the person in your attic.
The price is published
430 repairs in a book you can read before you agree to anything. The number does not move because the job took longer than we thought.
Licensed and insured
TACLB156738E, Class B environmental air conditioning. You can verify it with TDLR yourself in about thirty seconds, and we would encourage you to do that with anybody you let into your house.
Backed for a year
One full year on our labor. Parts carry the manufacturer warranty and we handle that claim ourselves rather than handing you a phone number.
The honest version
We publish our prices because we are new.
A company with two thousand reviews can point at those and let them do the talking. We do not have that yet. What we can do is put every number in the open before you ever call — the diagnostic, the after-hours charge, and exactly how every repair gets priced.
Almost nobody in Denton does that. It is the one form of trust a new company can offer honestly on day one, and it is the whole reason this business is built the way it is.
Give us a try on something small.
A tune-up is $109, or $99 a year on Foundation. It is a cheap way to find out whether we are the kind of company we say we are.