“Joseph, Justin and Robert were very professional and honest. If I could give them 10 stars I would. Outstanding job - left the house clean and fresh.”
A Hill Country cold front rolls through, the furnace won't light, and the house is 54° by morning. We carry ignitors and flame sensors on the truck and check the heat exchanger for cracks on every visit - because the part that keeps you warm is the same part that can leak CO.
Thanks for reaching out. We've got your request and we'll be in touch shortly, usually the same day. Need us right now? Call (830) 587-5790 - we're open 24/7.
A furnace mixes gas, electrical, and moving parts, the ignitor, flame sensor, gas valve, and blower. We're a licensed HVAC tech and a licensed electrician, so we read the whole system and check the heat exchanger for cracks and carbon monoxide on every visit. Most companies skip that.
Call (830) 587-5790Tell us the symptom. We already know where to look.
CO checked on every visit
A furnace burns gas inside a metal heat exchanger. When that metal cracks with age, exhaust, including carbon monoxide, can leak into the air you breathe. It's the one furnace failure that's actually dangerous, and the one most quick repairs skip right past.
We inspect the heat exchanger and test for CO on every heating call. If it's cracked we'll show you, plainly, and tell you whether a repair or a new system is the honest answer. No scare tactics, no guesswork.
Flat-rate service call, waived when you book the repair. Then the repair price goes in writing, before a wrench turns. No hourly meter, no upsell. Financing is there if a bigger fix comes up.
Book OnlineIf the heat exchanger is cracked or the furnace is on its last winter, here's what a new system runs — installed, all-in. Most shops won't post a number.
| System | Best for | Installed price |
|---|---|---|
| Gas furnace + AC — single stage (80%) | New gas furnace paired with AC | $9,180–$12,865 |
| Gas furnace + AC — two stage (80%) | Higher efficiency, quieter, even heat | $12,450–$17,108 |
| Packaged unit (gas / heat pump) | All-in-one rooftop or ground | $11,240–$16,590 |
Furnace-only swaps cost less and are priced on the free in-home visit. Thinking all-electric? A heat pump skips gas entirely and earns up to a $2,000 federal tax credit. Ranges are Goodman, low–high tonnage; financing available.



Our winters are mostly mild, which is exactly why a furnace can sit unused for months and then refuse to light on the first hard cold front. From the older homes off River Road and Gruene to the new builds in Veramendi and Vintage Oaks, we get heat back on fast, anywhere from Landa Park to Lake Dunlap, and check that it's running safely while we're there.
When Gloria wanted a second opinion on her San Antonio home's aging system, Moorhead Service Company sent out technician Robert Rodriguez. Robert took the time to inspect the equipment, patiently explain what was really going on, and perform a thorough cleaning to help the system run at its best. Gloria got straight answers and honest service - exactly what every San Antonio homeowner deserves from an HVAC company.
See more real jobs →★★★★★I needed a second opinion on the AC issue. Robert was very helpful and explained the situation well. Thank you for all your patience!
Gloria, San Antonio · December 2025 · Verified on Google
“Joseph, Justin and Robert were very professional and honest. If I could give them 10 stars I would. Outstanding job - left the house clean and fresh.”
“Moorhead came out same day when our AC quit in July. Fair price, zero upselling - the tech was super professional. These guys are the real deal.”
“Used Moorhead for a full electrical panel upgrade. Upfront about pricing, did the work cleanly, passed inspection first try. Will absolutely use them again.”
Tell us what it's doing and we'll get someone out fast - same day in most cases, anywhere in New Braunfels. You get the price in writing before any work starts. Or call (830) 587-5790, day or night.
Thanks for reaching out. We've got your request and we'll be in touch shortly, usually the same day. Need us right now? Call (830) 587-5790 - we're open 24/7.
Same-day available. Heat exchanger checked on every visit. Flat-rate quoted before we start.