$500 off
A brand-new high-efficiency AC or heating system
New Goodman AC & heating systems—and more
A little heating & cooling help from our family
November coupons · Book by Nov. 30, 2026* Discounts cannot be stacked or combined with other discounts.
Just mention the coupon when you call or text. Book by November 30; your visit can happen later. See coupon details
New Furnaces From $3,499
Furnace Replacement San Antonio
A new gas furnace, installed by our experienced install pros, with a written all-in price — honest pricing, no pressure. Most installs done in a single day.
Written price up front Financing available One-day install
Family-OwnedSince 2010 · TACLB29435E
Carnes and Sons is a family-owned, Texas-licensed (TACLB29435E) heating and air conditioning company serving San Antonio since 2010. New gas furnaces installed from $3,499 (80% AFUE) up to ~$9,500 for premium Carrier two-stage systems. Written price up front, financing available, most installs completed in a single day. Call or text Clint directly at (210) 600-5091.
Real San Antonio furnace pricing
All-in installed prices — equipment, labor, venting, permits, haul-off. No add-ons after the fact.
Goodman 80% AFUE
60k – 120k BTU
$3,499 – $5,200
The smart-buy for most San Antonio homes. 10-year parts warranty.
Goodman 96% AFUE
60k – 120k BTU
$5,400 – $7,200
High-efficiency two-stage. Best when you already vent through the side wall.
Carrier Performance 96%
60k – 120k BTU
$7,400 – $9,500
Quiet two-stage variable speed. Premium comfort, 10-year parts.
Want the exact number for your home? Text Clint at (210) 600-5091 →
Why families pick Carnes and Sons
Experienced install pros
Highly trained installation professionals, many with us over 10 years.
Written price up front
Real all-in number — equipment, venting, gas line, permits, haul-off. No 'while we're in there' surprises.
Carrier Factory Authorized + Goodman
Two solid brands at two price points. We don't push the most expensive option — we recommend what fits your house.
Same-day quotes, next-day install
Most furnace replacements are scheduled within 24–48 hours. Through the cold snap? We move heaven and earth.
Need to spread the cost? Financing with Synchrony and FTL Finance — same-as-cash and low monthly options, approval in minutes.
What Your Neighbors Are Saying
Heating help across the site
Furnace RepairAC Replacement · $6,800–$9,600Heating Tune-Up · $149Free Second OpinionFlame SensorHot-Surface IgnitorGas ValveHeat Exchanger
Furnace replacement in your neighborhood
Furnace replacement across the greater San Antonio area
Carnes and Sons Air Conditioning
License TACLB29435E · Family-Owned Since 2010
401 E Sonterra Blvd Suite 375
San Antonio, TX 78258(210) 600-5091
San Antonio, TX 78258(210) 600-5091
Mon–Sat: 7AM – 8PM · Emergency same-day service
Cities & neighborhoods we serve
San Antonio · Stone Oak · Alamo Heights · Hollywood Park · Hill Country Village · Shavano Park · Castle Hills · Leon Valley · Helotes · Boerne · Fair Oaks Ranch · Bulverde · Timberwood Park · Garden Ridge · Schertz · Cibolo · Selma · Universal City · Live Oak · Converse · Windcrest · New Braunfels
Ready for a real furnace quote?
Talk to a real person — no call center, no pressure. We'll give you the number straight.