In a house with retrofitted duct runs, the system moves less air than its rating suggests, so it never closes the last two degrees. We measure static pressure and the temperature split across the coil, which separates a low refrigerant charge from a duct problem. Those two look identical from a thermostat.
Professional HVAC Contractor in Alamo Heights, San Antonio, TX
Serving 78209 since 2014, 4.9 stars, and a flat $119 diagnostic.
- Licensed and EPA-certified
- Repair before replace
- No-commission technicians
· Google reviews
Licensed · TACLB 110532E
Why Your Upstairs Stays Hot in Alamo Heights?
Alamo Heights was built before central air. Most of the neighborhood went up between the 1920s and the 1940s, so ductwork arrived decades later and got threaded through attics that were never designed to carry it. By late June you feel it. The second floor never catches up, one back room stays unused, and the bill keeps climbing. None of that is fixed by dropping the thermostat another two degrees, which is why Alamo Comfort Heating & Air Conditioning measures airflow and static pressure before anyone quotes equipment. We have worked these blocks since 2014 on AC repair, installation, heating and duct work, and we will tell you when a repair is the smarter money.
On the job
5 Signs You Need an HVAC Contractor in Alamo Heights
Craftsman bungalows and 1940s two-storeys fail in patterns. These are the five we get called for most across Alamo Heights, and what our technician measures on each one before quoting anything.
Older Alamo Heights homes leak humid air at windows and attic hatches, and an oversized system cools fast then shuts off before it pulls moisture out. We check runtime and indoor humidity together, because the fix is sometimes a dehumidifier and sometimes sealing the returns.
That is nearly always a failed capacitor or a burned contactor, both common in a climate that runs the AC eight months a year, and both same-visit repairs when the part is on the truck. Our diagnostic is a flat $119, credited toward the repair.
A furnace idle for eight months collects dust on the flame sensor and loses tension in its igniter, which is why the first freezing night is when they quit across San Antonio. We test the ignition sequence, heat exchanger and venting in fall.
In 1920s and 1930s houses the duct runs are often undersized, uninsulated, or leaking into an attic that passes 130 degrees in August. We pressure-test the runs and inspect the joints, then price sealing, replacement and a ductless zone against each other.
Every one of these starts the same way, with a measurement rather than a quote.
Heating, Cooling and IAQ Services We Offer in Alamo Heights
One team handles all of it, from the no-cool call on a Sunday to the replacement you have been putting off. We install and service every major make and model, because in a house with retrofitted ductwork the install decides the outcome far more than the badge on the box. Every visit starts with a measurement and a written price.
CoolingCooling
The work that carries an Alamo Heights summer. Your AC can run nearly nonstop for months, pushing air through attic ducts that sit in 130-degree heat. We size, repair and tune systems around how your home holds heat, so every floor stays cool without wearing out the unit.
HeatingHeating
Short season, and it still has to light on the coldest night. A furnace or heat pump that sits idle for months can fail on the first cold snap, right when everyone else's does. We check ignition, heat exchangers and defrost controls so your system is ready for the first freeze.
Heating & Furnace RepairFurnace InstallationFurnace MaintenanceHeat Pump RepairHeat Pump InstallationEmergency Heating Service
DuctlessDuctless
For the converted garage, the sunroom and the room ductwork never reached. Many older Alamo Heights homes have additions the original system was never built to serve. A mini-split gives that space its own quiet, efficient heating and cooling, controlled separately from the rest of the house.
DuctworkIndoor Air Quality and Ductwork
In San Antonio humidity can leave a cool house feeling damp, especially when leaky attic ducts pull in moist air and dust. We seal the ducts first, then add dehumidifiers, air purifiers or smart thermostats so your home feels as comfortable as the thermostat says.
Whole-Home DehumidificationAir Purification & UVDuct Sealing, Repair & Leak DetectionSmart ThermostatsDuctwork Installation
Get a Straight Answer Today
Call and someone picks up, days, nights and weekends. On a repair you pay a flat $119 diagnostic, and that comes off your total the moment you approve the work. On a new system the in-home estimate is free and written, with financing for qualified customers, subject to approval. We will not quote a number before we know the cause.
Three Reasons to Choose Us in Alamo Heights
Three things separate us on your street, and each one is checkable. None of them is a slogan about caring more than the next company.
Minutes Away, Not Across Town.
Our office sits on Gulfdale north of Loop 410, and Alamo Heights runs up to the south side of that same loop. That short distance is why urgent no-cool calls in 78209 get fitted in the same day more often than they do for a company dispatching from the far side of the city.
No Commission, So No Reason to Oversell.
Nobody here is paid more for selling you equipment, on any job, at any time of year. That structure is why “fair pricing” and “no upcharging” keep appearing in our reviews without us asking. On a 90-year-old house, where a replacement quote is an easy sell, it means the recommendation you get is the one the measurements support.
We Pull the Permit Alamo Heights Demands.
Alamo Heights is its own incorporated city with its own building department, and a mechanical permit there has to be pulled by a state-licensed contractor for that trade. We are licensed in Texas, TACLB 110532E, and EPA-608 certified, so the permit and the inspection are our job and your install passes the first time.
Alamo Heights Is 13 Minutes Away From Us
Our door is on Gulfdale, north of Loop 410. Yours is south of it. Thirteen minutes down Broadway, a road our technicians already work every week, and we are on your street.
Route card: 10448 Gulfdale, Suite 3, San Antonio, TX 78216 → Broadway & Austin Highway, Alamo Heights, TX 78209 · 5.2 miles, about 13 minutes
Thirteen minutes, door to door
5.2 miles from Gulfdale to Broadway and Austin Highway.
One ZIP, three separate cities
78209 covers Alamo Heights, Olmos Park and Terrell Hills.
Broadway is our daily run
Our technicians work Broadway and Austin Highway every week.
Weekday and weekend service windows
Weekdays 8 to 6. Weekends 9 AM to 6 PM.
Where we work
Alamo Heights and the Blocks Around It
We are based on Gulfdale, north of Loop 410, which puts us on the same side of town as Alamo Heights rather than a branch across the city. That matters on a July afternoon. A short drive is the difference between a same-day slot and a wait until Thursday, and our technicians already know which blocks off Broadway have alley access. The crew that measured your ductwork in spring is the crew that comes back in October. Alamo Heights is a 2.2-square-mile city of its own, bordered by Hildebrand to the south, Loop 410 to the north, US 281 to the west and Fort Sam Houston to the east, sharing ZIP 78209 with its neighbors.
If your street is not listed, call and we will confirm coverage in about 30 seconds.
On the roadAlamo Comfort10448 Gulfdale, Suite 3, San Antonio, TX 78216
Nearby
Olmos ParkTerrell HillsLincoln HeightsStone OakCastle HillsNorthwood
From the neighborhood
What Alamo Heights Homeowners Tell Us
Questions We Get From Alamo Heights Homeowners
Call and askDo I need a permit to replace my AC here?
Yes. Alamo Heights issues its own mechanical permits through its building department, separate from San Antonio, and a state-licensed contractor has to pull it. We handle that.
Why is my upstairs always hotter than downstairs?
Usually undersized or leaking duct runs in a hot attic, common in houses built before central air. We pressure-test the runs before recommending anything.
Can I get a ductless mini-split without adding ductwork?
Yes. A single-zone system cools one room independently, which suits a converted garage, a sunroom or an addition your ducts never reached.
Do you charge to diagnose an AC problem?
A flat $119 for residential systems, credited toward the repair once you approve the work. You get a written price before anything starts.
How fast can you get to Alamo Heights?
Someone answers day or night, and urgent no-cool calls go to the front of the schedule. We will not promise an exact arrival hour.
Book Your Visit
Tell us what your system is doing and we will get you scheduled, measure before we quote, and put the price in writing before anyone touches the equipment. Alamo Heights homeowners have had our number since 2014.
Rusty HoermannOwner, Alamo Comfort