Financing Available Serving the Dallas–Fort Worth area Mon–Fri 8:00am–5:00pm · After-hours emergency service available · (214) 730-3063

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About Manuel Guerrero HVAC

Residential heating and air conditioning for the Dallas–Fort Worth area. A small operation built around answering the phone, explaining the problem, and charging what the work is actually worth.

Manuel Guerrero HVAC, serving the Dallas-Fort Worth area

Who You Are Actually Calling

When you call Manuel Guerrero HVAC, you are not entering a queue. The person who answers the phone is the person who works on the equipment, and that single fact shapes everything about how a service call goes.

There is no dispatcher reading from a script, no commissioned salesperson showing up in place of a technician, and no reason to condemn a system that still has good years left in it. You get a diagnosis, a written price, and a straight answer about whether repairing or replacing is the better use of your money.

That is a smaller way to run an HVAC company than most. It also means the work happens in the same county where our customers live, and word of mouth here is the only marketing that has ever really mattered.

How We Work

Four things that hold true on every call, whether it is a capacitor in July or a full system in October.

We diagnose before we quote

Warm air at the vents can be a twenty dollar part or a failed compressor. Those look identical from inside the house, so we test the system rather than guessing from the symptom you describe on the phone.

You approve the price first

Nothing gets repaired before you have heard what it costs and said yes. No work order gets padded after the fact, and no line item shows up that you did not agree to.

Repair stays a real option

Replacement is a recommendation we make when the numbers support it, not a default. On an older system you get both figures side by side and you decide which one makes sense.

We size equipment to the house

A replacement gets a load calculation, not a glance at the tonnage stamped on the old unit. Oversized systems cool fast, shut off before pulling humidity out, and wear their compressors out early.

Where We Work

Serving Ellis County, southern Dallas County, and the surrounding Dallas–Fort Worth metroplex.

Ellis County, TX

  • Waxahachie
  • Midlothian
  • Red Oak
  • Ennis
  • Ovilla
  • Palmer

Ellis County, cont.

  • Ferris
  • Maypearl
  • Italy
  • Milford
  • Oak Leaf
  • Garrett

Dallas County, TX

  • Cedar Hill
  • DeSoto
  • Duncanville
  • Lancaster
  • Glenn Heights

We also serve Mansfield in Tarrant County, Venus and Alvarado in Johnson County, and Corsicana in Navarro County. Just outside the list? Give us a call at (214) 730-3063.

Give Us a Call

Tell us what the system is doing and we will tell you what it takes to fix it.

Monday–Friday 8:00am–5:00pm · After-hours emergency service available

© 2026 Manuel Guerrero HVAC. All rights reserved.