RepairHeating & Furnace Repair
No heat, weak heat, or short-cycling usually traces to a dirty flame sensor, a failing igniter, or restricted airflow, and most are same-visit fixes.
See heating repairReliable Heating Contractor Warm Before the Cold Snap Hits
In San Antonio, Serving Alamo Heights, Terrell Hills, Olmos Park, Stone Oak, Castle Hills & the Greater San Antonio Area, TX
- Furnaces, heat pumps & no-heat calls
- Repair-first, never pushed to replace
- No-commission technicians
· Google reviews
Licensed · TACLB 110532E
Serving San Antonio Since 2014
Up to 10-Year Labor Warranty
0% Technician Commission
Calls Answered 24/7
One company, not five
One Call. Every Heating Problem. Handled.
San Antonio winters are mild until they're not. Most homes here ask the heating system to sit idle for months, then perform perfectly on the first freezing night of the year, which is exactly when a dirty flame sensor, a weak igniter, or a heat pump stuck in the wrong mode leaves you with no heat at the worst possible time. We're Alamo Comfort Heating & Air Conditioning, and we diagnose the actual fault, show it to you, and quote the fix in writing. We're repair-first, our technicians work on no commission, and a flat $119 residential diagnostic is credited back when you move forward with the repair.
Serving San Antonio since 2014 · 40+ years of combined experience · Licensed TACLB 110532E · EPA-608 certified · Family-owned · ★ from Google reviews
Get My Quote, Tell us what your heat is doing and we'll get you scheduled. Free phone estimates; a flat $119 diagnostic on repairs, credited back when you move forward.
One team
~40°F lowsare a typical San Antonio winter, with the odd hard freeze, so heaters sit idle for months, then have to fire on the coldest night.
1 dirty flame sensoris the top reason a gas furnace blows cold, a cheap, fast fix a replacement-happy company might turn into a whole new unit.
1 system heats and cools, a heat pump handles most of our mild winters efficiently, often with little or no backup heat.
$119 flatis our residential heating diagnostic, disclosed before we start and credited back when you move forward with the repair.
Everything your heat will ever need
Whatever’s Wrong With Your Heat, We Fix It
From a furnace that won't light to a heat pump blowing cool, here's the heating work our technicians handle, and what's usually behind each call:
Repair
ReplacementFurnace Replacement
When a furnace is past 15 to 20 years or has a cracked heat exchanger, repair stops being the smart money, and Rusty sizes and quotes the replacement himself.
See furnace replacement
Heat PumpsHeat Pump Heating & Repair
One system heats and cools and fits our mild winters well; if yours runs nonstop or ices over, we check the charge, defrost, and backup heat first.
See heat pumps
MaintenanceHeating Maintenance & Tune-Ups
A pre-season check on a system that's sat idle since spring catches a weak igniter or a clogged filter before the first freeze.
See heating maintenance
EmergencyNo-Heat & Urgent Calls
Someone answers whenever the cold rolls in, and urgent breakdowns go to the front of the schedule.
See emergency heatingStill weighing repair against replacement? We'll lay out what's wrong, what the fix costs, and what a new system would run, side by side, in writing, before anything's decided. Thinking about switching systems? See Heat Pumps in San Antonio. Want to keep what you have running right? See AC & Heating Maintenance.
02 / How pricing works
What You’ll Pay to Fix the Heat
Every heating repair starts with our flat $119 residential diagnostic, disclosed up front and credited back when you proceed with the work. From there the price depends on the part, the labor, and the condition of the system, a flame sensor or igniter is a modest fix, while a failing inducer motor or control board costs more. You approve the number in writing before we start, and nothing gets ordered without your okay. If your furnace or heat pump is old enough that replacement is the smarter money, we'll price that option alongside the repair so you can compare, with Synchrony financing available for qualified customers, subject to approval.
Repair It or Replace It? Straight Talk
How We Do the Math on Your System
One cold-weather breakdown doesn't mean you need a new system. We look at the age, the cost, and the safety of the unit and tell you which way the math points, no manufactured urgency, no commission behind the call. Here's the honest framework we use:
When replacement makes sense
- System past 15–20 years with repeat failures
- A cracked heat exchanger, a safety issue, not a patch
- Rising bills plus parts getting hard to find
- You're upgrading or adding on anyway
When repair is the smart money
- Furnace or heat pump under ~12 years
- A flame sensor, igniter, or capacitor
- One isolated, affordable part
- Still heating evenly and safely
Why San Antonio Trusts Us With Heat
Honest Diagnosis Before Anyone Says Replace
The Flame Sensor Another Company Called a Full Replacement
A few times a week, more when the first cold snap hits, someone calls us after another company quoted them a whole new furnace. The fault is often just a dirty flame sensor or a weak igniter. Our technicians earn no commission, so no one here is paid to sell you a unit you don't need.
The Owner Sizes Every Replacement Himself
When repair stops making sense, Rusty comes out and sizes the new system himself, not a commissioned closer, not a call center. We're family-owned and San Antonio-based, so the person who quotes your furnace is the person whose name is on the company you called.
Licensed, Certified, and Loyal to No Brand
We're a licensed Texas HVAC contractor (TACLB 110532E) and EPA-608 certified, and we service every major make and model of furnace and heat pump. A correct diagnosis and a right-sized replacement matter more to us than whichever badge happens to be on the equipment.
Four Steps From No Heat to Warm
Here’s how we get your heat back on, clearly, and without the runaround.
Call In, Someone Picks Up.
Someone answers, gets the basics of what your heater is doing, and schedules the visit, evenings and weekends included.
We Find the Fault and Show You.
A technician inspects the furnace or heat pump, finds the root cause, and shows you the failed part rather than just naming it. The flat $119 diagnostic applies.
Written Price. Your Approval. Then We Start.
You get a written estimate with your options explained, and work starts only after you approve the price.
Fixed, Tested, and Running Before We Go.
We make the repair, usually the same visit, then run the system through a full heating cycle to confirm it’s working safely before we leave.
When the Heat Quits, We Answer
Call Any Hour, a Person Answers
The first cold snap doesn't pick a convenient time, and neither does a furnace that won't start. Call Alamo Comfort Heating & Air Conditioning any hour and someone answers, not a machine, not a call center. We get the details, triage the call, and move fast on urgent no-heat situations.
What "answered 24/7" actually means
You reach a person any hour, not a machine. We won't promise a truck at 2 a.m., but we triage urgent heating calls and get you scheduled fast when the temperature drops.
Don't wait out a cold house
If your heat is out during a freeze, call rather than tough it out, early diagnosis is cheaper than the damage a hard freeze can do to your pipes and equipment.
Service area
Where We Handle Heating Across Bexar County
We're based in San Antonio and handle heating repair, replacement, and maintenance across Bexar County, TX, with the same team and standards on every job. Our North-side neighborhoods are the heart of our work, and we cover the surrounding suburbs too. Not sure you're in range? Call and we'll confirm coverage right away.
Alamo Comfort
Based in San Antonio · serving all of Bexar County
Get directions
Licensed & insured · TACLB 110532E
On the road
Alamo Comfort
10448 Gulfdale, Suite 3, San Antonio, TX 78216
Areas we serve
Ask if we cover your street
Alamo HeightsTerrell HillsOlmos ParkStone OakCastle HillsNorthwoodFar West SideSchertzGarden RidgeConverseNew Braunfels
Our neighbors say the same thing
What San Antonio Homeowners Say
Across Google reviews, Alamo Comfort Heating & Air Conditioning holds a -star average, and the words San Antonio homeowners use most are “knowledgeable,” “fair pricing,” and “no upcharging.”
Should I get a furnace or a heat pump in San Antonio?
For our mild winters, a heat pump usually heats the whole home efficiently and cools it in summer from one system, often with little backup heat. We size that choice to your home first.
My heater worked last winter and now won't turn on, what's wrong?
Often a system that sat idle for months trips on a dirty flame sensor, a weak igniter, or a clogged filter. We diagnose the exact cause before recommending any part or replacement.
Do you charge for a heating diagnostic?
Yes, a flat $119 residential fee, disclosed before we start. It's generally credited back when you move forward with the repair, so you're not paying twice to get the problem solved.
Is it worth maintaining a heater I barely use?
It is. A system that runs only a few weeks a year still degrades while it sits, and a quick pre-season check catches a failing part before the first freeze leaves your home cold.
Can you repair any brand of furnace or heat pump?
Yes. We service every major make and model, because a correct diagnosis and repair matter more than whichever badge is on the equipment.
Is Alamo Comfort Heating & Air Conditioning licensed to do heating work?
Yes. We're a licensed Texas HVAC contractor (TACLB 110532E) and EPA-608 certified, so your heating repair meets state code and is handled by qualified technicians.
Heating · San Antonio, TX
One Call Before the Cold Hits
Whatever your heater’s doing, Alamo Comfort Heating & Air Conditioning will find the fault, show you the proof, and quote a fair price.
Repair-First, Always · ReviewsNo-Commission TechniciansLic. TACLB #110532E