HVAC Services
Trusted HVAC Contractor in Harlingen
Repairs, ductwork, and thermostats handled by one owner-operated team that has served Harlingen since 2018.

Our Services
Need HVAC Help?
AC acting up? We’ll respond within 24 hours in Harlingen.
One Call for Total Home Comfort
Valley homes run heating and cooling nearly year-round, and that load wears on every part an HVAC contractor in Harlingen touches: ductwork, air handlers, and thermostats. Ecotech Heating & Cooling understands how one weak link throws off comfort in the whole house.
As an owner-operated Harlingen HVAC company, we diagnose before we quote. Owner Anthony Longoria brings 18 years of trade experience to the call, so you get a straight answer on repair versus replacement instead of a guessed part swap.
That approach is why homeowners across Cameron County have left Ecotech over 60 Google reviews since 2018.
AC and Heating Repairs Done Right
Our heating and cooling work covers everything between the thermostat on your wall and the air leaving your supply registers. Most AC repairs are finished in a single visit.
Every repair closes with a performance check, so we confirm airflow and temperature split before we pack up.
Ductwork Repair and Installation
Ductwork is where most of the comfort complaints in older Harlingen homes actually start. Crushed flex runs, disconnected boots, and leaking plenum seams bleed cooled air into the attic, so the system runs longer, the electric bill climbs, and the back bedrooms never catch up.
We test the supply and return sides, measure static pressure, and find the restriction rather than guessing at it. Undersized returns are common in houses built before the Valley’s cooling loads were what they are now.
From there the fix may be sealing joints, replacing a damaged run, resizing the return, or installing new duct from the plenum out. Neighborhoods like Stuart Place and Treasure Hills often need a mix of all four, and we price the work honestly before anything is cut.
Thermostat Setup and Repair
A thermostat that reads three degrees off will make a healthy HVAC system feel broken. We check placement, wiring, and calibration first, because a sensor mounted on a hot wall or fed by a loose common wire causes short cycling that gets blamed on the compressor every time.
When a replacement makes sense, we install and program the new control so it actually matches your equipment and your schedule. Smart thermostats earn their keep here, especially for Winter Texan homes that sit partly empty and need humidity held in check between visits.
Diagnostics Before Any Repair
We do not sell parts before we know what failed. Near-year-round cooling loads in the Rio Grande Valley wear capacitors, blower motors, and condensers at different rates, and two systems with identical symptoms often need two different repairs. System diagnostics settle that question in one visit.
A standard diagnostic visit includes:
You get the findings in plain language, with the repair options and what each one costs, before we touch a wrench. If airflow balancing solves the problem, we say so. If the condenser has reached the end of its life under coastal salt-air wear, we say that too, and financing is available with approved credit.
Why Harlingen Homeowners Call
Ecotech Heating & Cooling is owner-operated, so the person quoting the job is the person accountable for it. That is the difference behind our reviews: honest bids, arrival when promised, and quality work at a fair price rather than the cheapest part installed the fastest way.
We are Texas state-licensed through TDLR, EPA 608 certified for refrigerant handling, licensed and insured, and a Ruud dealer that also installs Goodman and Lennox. Every job carries our satisfaction guarantee, and calls placed during the week get a fast 24-hour response.
Serving Harlingen and Cameron County
Harlingen is home base. We work daily in Treasure Hills, Stuart Place, Palm Valley, and the newer subdivisions on the edge of town, and the housing mix shapes the work: aging ductwork and end-of-life systems inland, salt-air corrosion on units closer to the coast.
Beyond the city we cover San Benito, Primera, Combes, La Feria, Rio Hondo, Los Fresnos, Weslaco, Port Isabel, and Brownsville, with the same technicians and the same pricing on every call.
Gulf humidity and long summers put Valley equipment under load that milder regions never see. Knowing how local homes are built and how hard they run is what lets us reach a diagnosis quickly instead of billing you for the learning curve.
Schedule Your HVAC Service
Whether the air handler is silent, one room never cools, or the thermostat has stopped talking to the system, you can hand the whole problem to one Harlingen HVAC team. We diagnose it, explain it, and repair it, and we tell you plainly when replacement is the better buy.
Estimates are free, financing is available with approved credit, and our satisfaction guarantee stands behind the finished work. Ecotech runs Monday through Friday, 8:00 AM to 5:00 PM, with a fast 24-hour response on service requests.
Call Ecotech Heating & Cooling at (956) 970-0814 or send a message through our contact form, and we will get your comfort back on schedule.
Recent HVAC Projects
These photos come from real Harlingen jobs: duct replacements, condenser swaps, air handler repairs, and thermostat installs. They show the standard of workmanship we hold to, from strapped and sealed duct runs to tidy electrical connections.
If you see a system that looks like yours, mention it when you call. Recognizing your equipment and its common failure points helps us bring the right parts on the first trip instead of the second.
Trusted by Harlingen Homeowners Since 2018
Eight years of business in Harlingen and over 60 Google reviews say more than any sales pitch. Customers write about competitive bids, crews that show up when promised, and jobs finished on the date given.
“They gave the best bid of the three companies I called, showed up on time, and had our ductwork and thermostat sorted the same day. The house finally cools evenly upstairs.”
Comfort Problem? One Call Handles It.
Repairs, ductwork, thermostats, and diagnostics from a Harlingen team that’s licensed and insured.
Common Questions
Real questions and straight answers
Ecotech covers the full heating and cooling system: AC and heat repair, ductwork repair and installation, duct sealing, thermostats, air handlers, blower motors, condensers, and HVAC zoning. One team handles the diagnosis and the repair.
We run Monday through Friday, 8:00 AM to 5:00 PM, and respond to service requests within 24 hours. Urgent no-cooling calls are prioritized, and most repairs are scheduled for prompt next-day service or sooner depending on the route that day.
Both. Many Harlingen homes need only sealed joints, a reconnected boot, or one crushed run replaced. When static pressure readings show the duct system is badly undersized, we quote new supply and return runs and explain why.
It is usually an airflow problem, not a capacity problem. Long or kinked duct runs, a leaking plenum, a restricted return, or an unbalanced system starve that room. Airflow balancing and duct repair fix it far more often than a bigger unit does.
The main drivers are the failed component, refrigerant type and amount, how accessible the equipment is in an attic or closet, and the condition of the existing ductwork. We give a firm price after diagnostics, and financing is available with approved credit.
We weigh the repair cost against the age of the equipment, its efficiency, and how the coastal salt air has treated the outdoor unit. If a repair buys several good seasons, we repair it. If it is throwing money at a failing system, we say so.
Yes. Ecotech Heating & Cooling holds a Texas TDLR air conditioning and refrigeration contractor license, is EPA 608 certified for refrigerant handling, and carries commercial general liability insurance on every job we perform.
We are a Ruud dealer and also install Goodman and Lennox systems. Installing to manufacturer specification is what keeps a factory parts and labor warranty valid, so we match the equipment to the home rather than to whatever is on the truck.
