Business Details
50+ Years
experience
Emergency
services
Your Trusted HVAC Partner in St. Louis
For over a century, Design Aire has been synonymous with excellence in HVAC services across St. Louis and St. Charles. Founded in 1904 by Frank Fischer, our commitment to integrity, technical expertise, and customer satisfaction has earned us recognition as the #1 Trane Dealer in the Midwest. Our team of technicians, with an average of 26 years of experience, delivers precision in AC repair, furnace maintenance, and advanced systems like ductless mini-splits.We prioritize ongoing education, background-checked professionals, and transparent practices, ensuring every service call reflects our motto: 'Do a good job at a fair price and treat people right.' Our accolades, including the Better Business Bureau's A+ rating and Angie's List Super Service Awards, underscore our dedication to exceeding expectations through innovation and reliability.
Services
AC Repair
Furnace Maintenance
Ductless Systems
Heat Pump Installation
Whole-House Humidifiers
Details
- Year established: 1904
Highlights and features
- We have over 100 years of experience serving St. Louis and St. Charles.
- Our technicians average 26 years of HVAC expertise.
- We are the largest Trane dealer in the Midwest.
- We offer 24/7 emergency HVAC services.
- We provide transparent pricing with no hidden fees.
Associations and certifications
- Trane
What people say
Excellent service
Professional technicians
Timely repairs
Transparent pricing
Reliable solutions
Services
AC Repair
Our AC repair service addresses common issues like refrigerant leaks, compressor failures, and thermostat malfunctions. Technicians use advanced diagnostics to restore cooling efficiency quickly. Customers benefit from reduced energy bills and extended system lifespan through our precision repairs.
Furnace Maintenance
Preventive furnace maintenance includes multi-point inspections, filter replacements, and combustion efficiency checks. Regular service enhances reliability, lowers repair risks, and maintains manufacturer warranties. Homeowners gain peace of mind knowing their heating systems operate safely and efficiently.
Ductless Systems
Ductless mini-split installations provide zoned temperature control for homes without ductwork. Systems feature energy-efficient operation, quiet performance, and flexible design options. Customers enjoy customized comfort solutions for additions, renovations, or commercial spaces.
Heat Pump Installation
Professional heat pump installations combine heating and cooling capabilities in one system. Our Trane-certified technicians ensure proper sizing and refrigerant charge for optimal year-round performance. Homeowners benefit from reduced utility costs and consistent indoor comfort.
Whole-House Humidifiers
Whole-house humidifier installations integrate with HVAC systems to maintain ideal indoor humidity levels. These systems prevent dry air issues, protect wood furnishings, and improve respiratory health. Customers experience enhanced comfort and reduced static electricity during winter months.
Questions
What HVAC services does Design Aire offer?
We provide AC repair, furnace maintenance, heat pump installations, ductless systems, and indoor air quality solutions for residential and commercial clients.
Are financing options available?
Yes, we offer special financing through Wells Fargo Bank for approved credit applicants to make HVAC upgrades more accessible.
Do you provide emergency HVAC service?
We offer 24/7 emergency service for urgent heating and cooling issues to ensure customer comfort and safety.
What areas do you serve?
We serve St. Louis, St. Charles, and surrounding counties including Jefferson, Franklin, and Madison with comprehensive HVAC solutions.
How experienced is your team?
Our technicians average 26 years of HVAC experience with ongoing manufacturer-certified training for all equipment types.
What makes Design Aire different?
As the #1 Trane Dealer in the Midwest, we combine product expertise with personalized service and a century-old commitment to customer satisfaction.
Videos
