Design Aire Heating & Cooling - St. Louis
St. Louis, MO HVAC · #2 of 4 · 122+ yrs
Design Aire Heating & Cooling - St. Louis as a HVAC provider
St. Louis, MO HVAC · #2 of 4 · 122+ yrs
Design Aire leads with extensive AC repair capacity supported by many service pages. The company lists Trane dealer status and Trane product lines. Design Aire states they provide 24/7 emergency service and same-day options. The business notes Spire rebate programs for local customers. Google reviews reference prompt emergency arrivals and same-day repair outcomes.
Full-service HVAC contractor in St. Louis focused on Trane systems and Mitsubishi ductless mini-splits. Trane dealer designation appears repeatedly on their site. Years in business: 120+ years serving the St. Louis region. Free estimates, financing available, and 24/7 emergency response are listed.
| Signal | Design Aire Heating & Cooling… | St. Louis avg | Delta |
|---|---|---|---|
| Vouched Score | 86/100 | 86/100 | matches city average |
| Google rating | 5.0★ | 5.0★ | matches city average |
| Review volume | 1,110+ | 2,710+ | -1596 vs avg |
| Years in business | 122+ | 92+ | +30 vs avg |
- High Google rating (5.0★ across 1,110+ reviews)
- Long-established (122+ years in business)
- Authorized Trane Dealer
- Emergency response: 24/7
- Financing available
- Free estimates
- Indoor air quality services
- Mini-split system specialist
- Specializes in AC repair
- You need mini-split installation
- You need indoor air quality work
- You want manufacturer-warranty installation work
- You need to finance the work
| Provider | Vouched | Years | BBB | Yelp | Our picks | |
|---|---|---|---|---|---|---|
Design Aire Heating & Cooling - St. Louis (this company) |
86/100 | 5.0★ (1,110+) | 122+ | — | — | — |
| 86/100 | 5.0★ (1,855+) | 99+ | — | — | Best NATE-Certified Shop | |
| 85/100 | 4.9★ (11,755+) | 40+ | — | — | — | |
| 88/100 | 4.9★ (2,295+) | 48+ | — | — | Best Authorized Lennox Dealer in St Louis |
Company-wide signals
True across every category below.
Design Aire leads with extensive AC repair capacity supported by many service pages. The company lists Trane dealer status and Trane product lines. Design Aire states they provide 24/7 emergency service and same-day options. The business notes Spire rebate programs for local customers. Google reviews reference prompt emergency arrivals and same-day repair outcomes.
Design Aire leads with extensive AC repair capacity supported by many service pages. The company lists Trane dealer status and Trane product lines. Design Aire states they provide 24/7 emergency service and same-day options. The business notes Spire rebate programs for local customers. Google reviews reference prompt emergency arrivals and same-day repair outcomes.
Design Aire leads with extensive AC repair capacity supported by many service pages. The company lists Trane dealer status and Trane product lines. Design Aire states they provide 24/7 emergency service and same-day options. The business notes Spire rebate programs for local customers. Google reviews reference prompt emergency arrivals and same-day repair outcomes.
Design Aire leads with extensive AC repair capacity supported by many service pages. The company lists Trane dealer status and Trane product lines. Design Aire states they provide 24/7 emergency service and same-day options. The business notes Spire rebate programs for local customers. Google reviews reference prompt emergency arrivals and same-day repair outcomes.
Design Aire leads with extensive AC repair capacity supported by many service pages. The company lists Trane dealer status and Trane product lines. Design Aire states they provide 24/7 emergency service and same-day options. The business notes Spire rebate programs for local customers. Google reviews reference prompt emergency arrivals and same-day repair outcomes.
Design Aire leads with extensive AC repair capacity supported by many service pages. The company lists Trane dealer status and Trane product lines. Design Aire states they provide 24/7 emergency service and same-day options. The business notes Spire rebate programs for local customers. Google reviews reference prompt emergency arrivals and same-day repair outcomes.
Design Aire leads with extensive AC repair capacity supported by many service pages. The company lists Trane dealer status and Trane product lines. Design Aire states they provide 24/7 emergency service and same-day options. The business notes Spire rebate programs for local customers. Google reviews reference prompt emergency arrivals and same-day repair outcomes.
Design Aire leads with extensive AC repair capacity supported by many service pages. The company lists Trane dealer status and Trane product lines. Design Aire states they provide 24/7 emergency service and same-day options. The business notes Spire rebate programs for local customers. Google reviews reference prompt emergency arrivals and same-day repair outcomes.
Services
- AC Repair — Diagnostics and repair of central air conditioning systems — refrigerant leaks, capacitor and contactor failures, condenser fan motors, and thermostat issues.
- AC Replacement — Removal and replacement of an aging or failed central A/C — typically condenser, evaporator coil, and refrigerant lines.
- HVAC Installation — Full HVAC system installation including indoor and outdoor equipment, ductwork tie-in, and refrigerant work.
- Emergency HVAC Service — After-hours emergency response for no-cool and no-heat calls.
- Mini-Split Systems — Mini-split installation and service — typically ductless, used for additions or zoned comfort.
- Indoor Air Quality — Indoor air-quality work: high-MERV filtration, UV systems, humidifiers/dehumidifiers, and duct sanitization.
- Commercial HVAC — Commercial HVAC service for offices, retail, and light-industrial spaces — rooftop units, package units, and split systems.
- Furnace Repair — Repair of gas and electric furnaces — ignition systems, blower motors, heat exchangers, control boards, and flame sensors.
- Heating System Replacement — Replacement of an aging or failed heating system, typically a furnace or heat-pump indoor unit.
Service area
Published pricing
Maintenance plans
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maintenance plan
As published: maintenance plan"…arbon monoxide And more! Our preventative heating maintenance plan ensures your furnace runs smoothly. It also preve…"
Estimates
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Free estimates
As published: Free estimates"…a estimate or request emergency services: Request Free Estimate Get a free a estimate or request emergency servic…"
Contact & hours
Frequently asked questions
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Does Design Aire Heating & Cooling - St. Louis do AC Repair in St. Louis, MO?
Does Design Aire Heating & Cooling - St. Louis do AC Replacement in St. Louis, MO?
Does Design Aire Heating & Cooling - St. Louis do HVAC Installation in St. Louis, MO?
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Profile last updated July 26, 2026.