STL Air Pros HVAC delivers expert heating, cooling, and air quality solutions for homes and businesses across the St. Louis metro area. Licensed, insured, and family-owned.
From emergency repairs to full system installations, we deliver dependable heating, cooling, and air quality services for homes and businesses throughout St. Louis.
Expert AC repair, furnace installation, heat pump systems, and seasonal maintenance for St. Louis homes. Same-day emergency service available.
Rapid response, planned maintenance, and energy-efficient solutions for offices, retail, warehouses, and multi-tenant buildings across St. Louis.
Improve indoor air quality with duct repair, sealing, air purification systems, and humidity control. Breathe easier in your home or business.
We're not just another HVAC company. We're your neighbors, committed to your comfort and satisfaction.
Same-day and emergency service. We prioritize urgent calls and communicate clearly on timing.
Know the problem, the fix, and the cost before we begin. No surprises, just transparent service.
We focus on correct repairs and proper installation. Done right the first time, every time.
We treat every customer like family. Honest, reliable service from your neighbors in St. Louis.
Fully licensed, insured, and committed to excellence in every job we undertake.
We know St. Louis weather, homes, and buildings. Local accountability with a long-term mindset.
NATE-Certified
North American Technician Excellence
Missouri Licensed
HVAC Contractor License
EPA 608 Certified
Refrigerant Handling
Fully Insured
General Liability + Workers' Comp
Proudly serving St. Louis City, St. Louis County, St. Charles County and the surrounding Missouri metro area.
(314) 328-0008"St Louis Air Pros HVAC provided exceptional service! Their technicians were prompt, knowledgeable, and fixed our AC quickly. Highly recommended!"
— Happy St. Louis Customer
Real reviews from real St. Louis homeowners who trust STL Air Pros with their comfort.
"STL Air Pros saved us during the heat wave last summer. Their technician arrived within 2 hours, diagnosed the problem quickly, and had our AC running again the same day. Fair pricing and honest service — highly recommend!"
Jennifer M.
Clayton, MO
"We had our entire HVAC system replaced by STL Air Pros. From the initial quote to final installation, the team was professional, punctual, and cleaned up after themselves. Our energy bills have dropped noticeably too!"
Robert K.
Chesterfield, MO
"As a first-time homeowner, I had no idea what to expect from HVAC maintenance. The team explained everything clearly, didn't try to upsell me on services I didn't need, and now I trust them with all our heating and cooling needs."
Sarah T.
Webster Groves, MO
"Our AC went out on a 97-degree day and STL Air Pros had a tech at our house within two hours. Fixed a blown capacitor on the spot, explained exactly what failed and why, and the price was totally reasonable. Won't call anyone else."
Marcus Thompson
Webster Groves, MO · May 2025
"Replaced our 18-year-old furnace with a new high-efficiency unit. The crew was on time, professional, and cleaned up completely. They also caught a small carbon monoxide issue with the old heat exchanger — probably saved our family from a serious problem."
Diane Reynolds
Kirkwood, MO · March 2025
"I've used three different HVAC companies over the years and STL Air Pros is in a different league. Straight answers, no upselling, competitive pricing. My maintenance plan has caught two small issues before they became expensive repairs."
James Kowalski
Chesterfield, MO · January 2025
"Installed a ductless mini-split in our sunroom addition. The install was clean, they walked us through every setting, and the unit works perfectly. The room went from unbearable in summer to our favorite spot in the house."
Priya Mehta
Clayton, MO · July 2024
"Called at 11pm when our heat pump stopped working before a cold front. Tech was here by midnight, had it running in an hour. No ridiculous after-hours markup either. That kind of service is hard to find."
Robert Sullivan
Ladue, MO · September 2024
"STL Air Pros completed a full HVAC system replacement for our office building. The project came in on budget, the crew worked around our business hours, and the new system cut our energy bills noticeably in the first month."
Angela Whitfield
Creve Coeur, MO · April 2025
Our technicians publish what they learn on real service calls — new regulations, efficiency shifts, and breakdown patterns we see across the metro.
Expert HVAC advice for Collinsville homeowners: Heat Pump Installation in Collinsville, IL: Costs & Savings. STL Air Pros — licensed, local, 5-star rated. Call (314) 328-0008.
Expert HVAC advice for St. Louis homeowners: AC Repair in St. Louis, MO: Costs, Response Time & What to Expect. STL Air Pros — licensed, local, 5-star rated. Call 314-517-8590.
Expert HVAC advice for St. Louis homeowners on how to choose an hvac contractor in st. louis. Licensed professionals at STL Air Pros share what you need to know.
Straight answers to the top questions we hear from homeowners across the St. Louis metro area.
AC repair in St. Louis costs $180–$650 depending on the part. Furnace repair runs $150–$550. STL Air Pros provides a flat written estimate before any work begins — no hourly rates or hidden fees. Call (314) 328-0008 for a same-day diagnostic.
Yes. STL Air Pros offers 24/7 emergency HVAC service across St. Louis City, St. Louis County, and St. Charles County. We dispatch technicians within 1–2 hours for urgent calls — any day, any time.
We serve the entire Missouri side of the St. Louis metro including St. Louis City, Clayton, Chesterfield, Ballwin, Florissant, Maryland Heights, Webster Groves, Kirkwood, St. Charles, O'Fallon, and surrounding communities in St. Louis County and St. Charles County.
Yes. STL Air Pros is fully licensed by the State of Missouri and carries general liability and workers' compensation insurance. All technicians are NATE-certified and EPA 608 certified for refrigerant handling.
Yes. We offer free in-home estimates for all HVAC installations and major repairs. For service calls, a diagnostic fee applies and is waived if you proceed with the repair. Call (314) 328-0008 or request online.
STL Air Pros offers flexible financing on qualifying installations and repairs. We accept all major credit cards and can discuss current promotional terms when you schedule your free estimate.
Whether it's an emergency repair or a new system installation, STL Air Pros HVAC is here for you. Licensed, insured, and always honest.
24/7 Emergency HVAC
314-328-0008
