Top Emergency HVAC Services in San Antonio, TX, 78023 | Compare & Call
For over 30 years, Sigma Air Heating & Cooling has been San Antonio's trusted HVAC company. Their skilled technicians handle installation, repair, and maintenance. Serving communities from San Marcos to La Vernia, they bring reliable climate control solutions to homes across the region. Founded in 1994, their established reputation is built on consistent customer satisfaction.
J3 Construction is San Antonio, TX's reliable full-service contractor for residential and commercial needs. Skilled in roofing, HVAC, remodeling, and new builds, their team brings quality craftsmanship to every project. They are known for dependable service throughout the Texas Hill Country and surrounding areas, providing expert attention to detail from start to finish.
Above All Builders R Us
For dependable plumbing, electrical, and HVAC services in San Antonio, TX, call Above All Builders R Us. Their skilled team offers 24-hour emergency support for installations, repairs, and maintenance. They are a trusted local provider for both residential and commercial needs throughout the region.
In San Antonio, TX, RF Construction handles plumbing, HVAC, and remodeling projects. A trusted local contractor, they offer reliable repair and installation services for your home. Their skilled team is available for extended hours to assist with your needs, from kitchen updates to system replacements.
Straight Cool Mechanical
Straight Cool Mechanical is a trusted San Antonio, TX HVAC contractor established in 2016. They provide expert installation, repair, and maintenance for heating and cooling systems, with a specialty in commercial refrigeration. Available 24/7 for emergency service, they are a reliable choice for both residential and business clients in the surrounding area.
Kayzal Thermal Solutions is a trusted San Antonio, TX HVAC contractor with over 26 years of expertise. They provide reliable HVAC installation, repair, and maintenance for both homes and businesses across the region. This certified woman-owned company is known for dependable service and clear communication with its bilingual team, offering free estimates to the community.
Magnum Heating & A/C, a trusted family-owned HVAC company in San Antonio, TX, provides heating and cooling installation, repair, and maintenance. With roots going back to 2012, they offer reliable emergency services for residential and commercial clients throughout the region.
Climco Mechanical
Established in 2015, Climco Mechanical is a trusted family-owned HVAC and appliance repair company serving San Antonio, TX. Their skilled technicians provide installation, maintenance, and repairs for heating, cooling, and refrigeration systems, including commercial kitchen equipment. Available seven days a week, they focus on reliable service and clear communication for both residential and commercial clients.
When HVAC system repair is needed in San Antonio, TX, Bluebonnet Air Conditioning delivers reliable service to Schertz, Selma, and Garden Ridge. Their skilled technicians are ready to help with urgent breakdowns. Known for dependable work, they keep local homes comfortable.
In San Antonio, TX, G4 Quality Air provides trusted HVAC installation, repair, and maintenance. With over 20 years in the industry, they focus on honest service and customer satisfaction for both residential and commercial needs. Their skilled technicians are available for emergency repairs, offering reliable solutions throughout the greater San Antonio area.
A Guide to Reliable HVAC Service in San Antonio, TX
When the San Antonio heat index climbs over 100°F or a rare South Texas freeze rolls through, your home's comfort system isn't just a luxury—it's essential. This guide will help you understand everything about HVAC service in San Antonio, TX, from routine maintenance to handling a late-night emergency. Whether you're in Alamo Heights, Stone Oak, or downtown, knowing your options brings peace of mind.
What HVAC Service Covers for San Antonio Homeowners
HVAC service here is a year-round partnership. It starts with preventive maintenance, like our spring AC tune-up before the brutal summer and a fall furnace check before any chilly spells. But it also means being ready for repairs, big and small. For many local families, it includes the critical safety net of 24/7 emergency HVAC service. We provide same-day HVAC service for those urgent but not life-threatening issues, like an AC struggling on a hot day. Think of it as full-spectrum care for your home's heating and cooling, tailored to our unique climate.
Defining a True HVAC Emergency in Our Community
Not every problem requires a midnight call. A true emergency puts your home, safety, or health at immediate risk. In San Antonio, we consider these situations emergencies: a complete loss of heat when temperatures are near or below freezing; a total AC failure during a dangerous heatwave; any smell of gas or a carbon monoxide alarm sounding; visible smoke or strong burning odors from the unit; or a major water leak from your indoor AC unit that's causing flooding. In these cases, waiting until morning isn't safe.
How San Antonio's Climate Tests Your HVAC System
Our weather is tough on equipment. The relentless summer heat and humidity force AC units to run constantly, leading to wear on compressors and clogged condensate drains. Our dusty environment and high pollen count can quickly dirty filters and coils, reducing efficiency. In older neighborhoods like King William or Monte Vista, you might find aging gas furnaces that need careful monitoring. Newer homes in areas like The Dominion often use heat pumps, which work hard in both summer and our mild winters. Whether it's a central system, a ductless mini-split, or a packaged unit, the local elements demand vigilant HVAC service.
Common HVAC Issues We See Across San Antonio
We've helped thousands of local homeowners. Just last summer, a family in Leon Valley called because their AC was blowing warm air on a 105°F day—a failing capacitor was the culprit, a common fix. In winter, a homeowner in Terrell Hills had no heat; a dirty flame sensor in their furnace just needed cleaning. Other frequent calls include AC units leaking water inside (usually a blocked drain line), frozen evaporator coils from low refrigerant, and thermostats failing due to power surges from our occasional storms. We also take carbon monoxide risks seriously, especially in homes with older gas appliances.
Emergency HVAC vs. Same-Day vs. Routine Service: Knowing When to Call
This is key for any homeowner seeking HVAC service. Call for emergency HVAC service immediately for the safety issues listed above. For same-day HVAC service, think of problems like reduced cooling on a hot day, strange noises during operation, or a thermostat that's acting up—you need it fixed quickly, but it's not an immediate danger. Schedule routine HVAC service for your seasonal tune-ups, minor airflow concerns, or planning a system replacement. Understanding this difference helps you get the right help at the right time.
Understanding HVAC Service Costs in San Antonio
We believe in transparency. Most service calls begin with a standard diagnostic fee, which covers the technician's time to pinpoint the problem. For emergency or after-hours calls, there is typically an emergency call-out fee on top of that, and labor rates may be higher. Hourly labor, plus the cost of any parts, makes up the remainder. For example, a common daytime AC repair like replacing a capacitor might cost between $250-$400. An emergency furnace repair on a cold night, involving a new ignitor and after-hours rates, could range from $500-$800. These are estimates; we always provide a clear quote before any work begins.
Signs You Need Immediate HVAC Service
- No heat during freezing weather.
- Your carbon monoxide alarm is sounding.
- You smell natural gas or rotten eggs (mercaptan odorant).
- You see smoke or smell burning electrical odors from the unit.
- Water is pooling from your indoor AC unit or air handler.
- There are loud banging, screeching, or buzzing noises.
- Your AC has completely failed during a period of dangerous heat.
Safety Checklist While You Wait for Help
- If you smell gas, evacuate immediately and call your gas company from outside.
- If the CO alarm sounds, get everyone, including pets, outside to fresh air and call 911.
- If it's safe to do so, turn off the HVAC system at the thermostat and the circuit breaker.
- Keep away from any electrical components that are sparking or smoking.
- Move children, elderly family members, or anyone with health conditions to a safe, temperate location.
- Remember: never attempt repairs on gas lines or high-voltage electrical components yourself.
Local Codes and Why Professional Service Matters
San Antonio and Bexar County have specific codes for HVAC work. Proper furnace venting is critical to prevent CO poisoning. Handling refrigerant, required for AC and heat pump service, requires an EPA 608 certification. Major installations like a new system often need a permit from the city. Using a licensed, insured HVAC service provider ensures the work is done safely, correctly, and in compliance with all local regulations—protecting your home and your investment.
What to Expect for Response Times in San Antonio
When you call for emergency HVAC service, our goal is to have a technician dispatched and on the road quickly. In the San Antonio metro area, typical response times can range from 60 to 180 minutes, depending on traffic, severe weather, and your specific location relative to our technicians. We navigate major arteries like I-10, I-35, Loop 1604, and US-281 to reach neighborhoods from the Medical Center to Schertz as fast as safely possible.
Your Local Partner for Home Comfort and Safety
Navigating HVAC service in San Antonio, TX, requires a local partner who understands our weather, our homes, and the urgency when things go wrong. From planned maintenance to urgent repairs, we're here to keep your family safe and comfortable year-round.
San Antonio Emergency HVAC provides trusted HVAC service in San Antonio, TX, including 24/7 emergency response and same-day repairs. Call (888) 996-4787 now for immediate dispatch.
