Sigma Air Heating & Cooling

Sigma Air Heating & Cooling Sigma Air: Trusted HVAC Experts Since 1994. We don’t just fix ACs — we bring peace of mind.

Whether you’re facing a sudden breakdown or planning a full system upgrade, our licensed experts deliver fast, honest service.

A bad capacitor is one of those repairs that sounds scary but is actually a fast fix — if you catch it before the whole ...
07/27/2026

A bad capacitor is one of those repairs that sounds scary but is actually a fast fix — if you catch it before the whole unit shuts down.
Daniel's AC was running but barely pushing cold air.

One service call, one part swap, back to full power.
That's the difference between a $150 repair and a $2,000 emergency replacement.

If your system is acting off — running constantly, weak airflow, warm air — don't wait. DM us REPAIR and we'll come take a look.

Most HVAC companies tell you they'll be there between 8 and 5. That's not a schedule — that's a window you have to burn ...
07/25/2026

Most HVAC companies tell you they'll be there between 8 and 5. That's not a schedule — that's a window you have to burn a day for.

We give you a time and we show up. San Antonio technicians, same day service, no hidden diagnostic fees.

If your system goes down, you don't have time to mess around. Neither do we.

Call (210) 762.6703 or DM us — we'll get someone out.

07/24/2026

Warm air from your vents while the AC runs nonstop is almost never a thermostat issue. It's usually the coil.

Here's why that matters: a failing evaporator coil forces your whole system into overdrive. It runs longer, cools less, and eventually quits — usually during the hottest stretch of the year.

The coil is the part most people don't know exists until it fails. Now you do.

If your AC is running hard but your house isn't cooling down, DM us COIL. We'll come check it and give you a straight answer on what's going on.

Old system breaking down every few months. Energy bills that keep climbing. Constant repairs that add up to more than a ...
07/22/2026

Old system breaking down every few months. Energy bills that keep climbing. Constant repairs that add up to more than a new unit is worth. You already know it is time.

A new AC system means lower monthly bills reliable cooling and zero emergency calls in the middle of August. We handle the whole process from helping you pick the right unit to professional installation.

No pressure. No upsells. Just honest pricing and work done right the first time.

We beat any written quote from a licensed competitor. That is a promise.

DM us INSTALL for your free estimate today.

07/21/2026

🏀 San Antonio, we're giving away $1,000 to one lucky family this summer.

The Spurs were in the Finals — and we wanted to celebrate with the city that showed up all season.
HERE'S HOW TO ENTER:
✅ Follow our page

❤️ Like this post

🏷️ Tag as many people as you want in the comments — each tag is its own entry

Honestly? This might be the easiest $1,000 you've ever had a shot at. Complete the steps above for a chance to win $1,000 toward AC repairs or a brand new system. Tap the link below. 👇

www.sigmaairtx.com

A dirty filter does not just affect your air quality. It forces your whole system to work 15 percent harder than it shou...
07/21/2026

A dirty filter does not just affect your air quality. It forces your whole system to work 15 percent harder than it should.

More energy. Less cooling. And a shorter lifespan for your AC.

The fix costs less than ten dollars and takes two minutes.

DM us FILTER for a free tune-up and we will check everything else while we are there.

07/20/2026

That moment you realize you are not just frustrated with bad HVAC companies. You are literally having a full conversation with yourself about it.

We have seen it too. Customers calling the same companies over and over expecting different results. It does not make sense. But hey, we are not here to judge. We are here to fix your AC.

Same day service. Honest pricing. No insanity required.

Call us today at (210) 762.6703 or DM us to schedule your service.

Your AC doesn't care that it's a holiday weekend. Neither do we.We've been doing this in San Antonio since 1994 — we've ...
07/20/2026

Your AC doesn't care that it's a holiday weekend. Neither do we.

We've been doing this in San Antonio since 1994 — we've seen every August emergency there is. When your system goes down, the last thing you need is a hold music loop.

Call (210) 762.6703. We answer.

07/19/2026

Sweeping the floor with the competition. Literally.

We beat any competitor's quote. Call us today at (210) 762.6703.

August in San Antonio averages 99°F. Your AC has been working since April. That's not a machine you want to find out is ...
07/19/2026

August in San Antonio averages 99°F. Your AC has been working since April. That's not a machine you want to find out is struggling when the heat actually peaks.

Three honest questions: When did you last change your filter? Have you heard any new sounds this season? Is every room in your house cooling the same?

If you're unsure on any of those, a tune-up takes about an hour and catches problems before they become emergencies.

DM us READY and we'll get you scheduled — no sales pitch, just answers.

Address

5315 Jackwood Drive
San Antonio, TX
78238

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