G1 Air provides professional HVAC replacement services that keep your home comfortable, energy-efficient, and reliable year-round. With over 10 years of experience, premium equipment, 10-year labor and 10-year parts warranties, financing options, and exceptional service, we make upgrading your HVAC system simple and stress-free.
© G1 Air
G1 Air provides professional HVAC replacement services for homeowners across Northeast San Antonio and surrounding communities. We install trusted, high-quality heating and cooling systems backed by 10-year labor and 10-year parts warranties, flexible financing, and exceptional customer care. Connect with us today to schedule your free HVAC replacement estimate.
Get a Military Discount and an Instant $500 Rebate
100% Privacy Guaranteed
Enjoy Reliable Comfort with an HVAC Replacement Built to Last
Replacing your HVAC system is a major investment, and choosing the right contractor matters. G1 Air delivers dependable HVAC replacements using trusted equipment, expert installation, transparent recommendations, and outstanding customer care to help your family enjoy lasting comfort and peace of mind.
Why San Antonio Homeowners Choose G1 Air
WHY CHOOSE US
Energy Savings
Modern HVAC systems help lower monthly utility bills with improved efficiency.
10-Year Labor Warranty
Instant $500 Rebate
Top-Rated Equipment
10-Year Parts Warranty
Ready to Enjoy Reliable Comfort and Lower Energy Bills?
Complete the short form today to receive your free HVAC replacement estimate and discover how easy it is to upgrade your home's heating and cooling system with trusted local experts.
ABOUT US
About G1 Air
G1 Air proudly serves homeowners throughout Northeast San Antonio, Schertz, Cibolo, Universal City, Converse, Live Oak, Selma, and surrounding communities with dependable HVAC replacement services. For more than 10 years, our experienced team has delivered premium equipment, honest recommendations, expert installations, and exceptional customer service backed by industry-leading warranties. We believe every family deserves reliable comfort, transparent communication, and lasting value.
HOW IT WORKS
Replace Your HVAC System in 3 Quick, Easy Steps
TESTIMONIALS
What Our Customers Say About Us
Shout out to Robert! He is truly a professional and a subject matter expert. He carefully explained every detail about the potential issues with my AC and methodically troubleshot each area to find the root cause. Robert didn’t just ‘put in hours’—he worked with dedication until the job was done right.
What impressed me most is that G1 Air goes above and beyond their posted hours to make sure the customer’s system is fully functional, and their pricing is more than fair. Unlike other HVAC companies that advertise “24/7” but fail to deliver, G1 Air is realistic and flexible, tailoring their service hours around the customer’s schedule. That flexibility helped me tremendously.
i cannot thank Robert and the G1 Air team enough for their professionalism, honesty, and hard work. They’ve truly set the bar for what HVAC service should be.
Lim Yang
Zachary Brooks
Michelle Juarez
Julie May
Lynn Campbell
Lashaude James
Save On Your Service Today
OUR OFFERS
Fill Out the Form
Provide basic information through our quick, user-friendly form.
Cleaner Indoor Air
Enjoy healthier indoor air and more consistent temperatures throughout your home.
Flexible Financing
Affordable payment options make replacing your HVAC system easier on your budget.
Reliable Comfort
Enjoy consistent temperatures throughout your home during every season of the year.
Quiet Operation
Modern HVAC systems run more quietly for a more comfortable living environment.
Expert Recommendations
We help you choose the right HVAC system for your home's unique comfort needs.
Save More on Your New HVAC Replacement
Take advantage of our exclusive offers, including an Instant $500 Rebate and a special Military Discount on qualifying HVAC replacement systems. Upgrade your comfort today while enjoying outstanding long-term value.
Offer valid through 07/31/2026. Present this offer during your estimate. May not be combined with any other coupon.
No Service Call Fee
Comfort Discount
Free Wi-Fi Thermostat with Qualifying System Replacement
Comfort Discount
10% Off Heating & Cooling System Replacement
Comfort Discount
10% Off Service or Installation for Military Personnel & First Responders
Hero Discount
10%–15% Off for New Customers
New Customer Discount
Whether your current system is outdated, inefficient, or constantly breaking down, G1 Air provides professional HVAC replacement services tailored to your home's size, comfort needs, and budget. We install dependable, high-quality systems designed for long-lasting performance and energy efficiency.
Complete HVAC Replacement Solutions
OUR SERVICE
High-Efficiency HVAC Systems
Expert Installation
Reliable Long-Term Comfort
HVAC Services for Schertz, TX and the Surrounding Area
Receive Your Free Estimate
Our comfort specialists evaluate your needs and provide a customized replacement recommendation and transparent pricing.
Enjoy Reliable Comfort
Our experienced installation team replaces your HVAC system with precision so your family can enjoy dependable comfort for years to come.