Our HVAC Services
Comprehensive heating, cooling, and air quality solutions tailored to both homeowners and businesses in the St. Louis metro area.
Residential HVAC
We understand the unique challenges homeowners face, from system failures at inconvenient times to concerns about air quality. We offer prompt repairs, efficient replacements, and thorough maintenance to keep your home comfortable year-round.
- AC repair, replacement, and installation
- Furnace diagnostics and repair
- Heat pump systems and conversions
- Seasonal tune-ups and maintenance plans
- Thermostat installation and programming
- Mini-split ductless systems
Commercial HVAC
For businesses, downtime is not an option. We provide rapid response, planned maintenance, and energy-efficient solutions to minimize disruptions and keep your tenants and customers comfortable.
- Rooftop unit (RTU) service and installation
- Commercial controls and building automation
- Load calculations and system design
- Planned maintenance contracts
- Energy efficiency audits and upgrades
- Emergency commercial service
Ductwork & Air Quality
Improve your indoor environment with our ductwork services and air quality solutions. We address duct leaks, poor design, and air purification needs to reduce allergens, odors, and ensure efficient airflow.
- Duct repair, sealing, and modification
- Indoor air quality assessments
- Air purification and filtration systems
- Whole-house dehumidifiers and humidifiers
- UV light germicidal systems
- Ventilation system design
Detailed Service Pages
Each service has its own page with pricing, common problems, and answers to the questions St. Louis homeowners ask us most.
Energy Savings Estimator
See how much you could save by upgrading to a modern high-efficiency HVAC system.
STL Air Pros HVAC — Master Technician Team
St. Louis, MO · Licensed HVAC Contractor
Every guide on this site is written and field-reviewed by our NATE-certified, EPA-licensed technicians who have serviced thousands of heating and cooling systems across the St. Louis metro. We do not publish theoretical content — every recommendation comes from real service calls in Missouri homes and businesses, backed by manufacturer training on Carrier, Trane, Lennox, Rheem, and Goodman equipment.
Need HVAC Service Today?
Same-day and emergency service available. Call now or request a free estimate.