Top 10 Ac Installation in St. Louis, MO
Quick Answer
The best ac installation providers in St. Louis, MO for 2026 include St. Louis Heating and Air Conditioning (4.9), Rhymes Heating & Cooling (5), Design Aire Heating & Cooling - St. Louis (5).
AC Installation in St. Louis, MO: What to Know Before You Buy
A new AC system is a major investment. The right installer in St. Louis, MO will properly size the unit for your home, handle permits, and back the work with a solid warranty. Undersized or poorly installed systems waste energy and fail early.
💡 Quick Tips:
- Get a Manual J load calculation — not just a rule-of-thumb sizing
- Ask about SEER2 ratings and expected monthly energy costs
- Confirm the warranty covers both equipment and labor
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Academy Air Heating, Cooling, Plumbing and Electric
4848 Park 370 Blvd Suite F, Hazelwood, MO 63042, USA
Licensed & InsuredTop Rated
Services: Ac Installation
2
St. Louis Heating and Air Conditioning
2704 Brannon Ave, St. Louis, MO 63139, USA
Licensed & InsuredTop Rated
Services: Ac Installation
3
SmartHouse Heating and Cooling
6921 Olive Blvd, St. Louis, MO 63130, USA
Licensed & InsuredTop Rated
Services: Ac Installation
Sponsored
4
Design Aire Heating & Cooling - St. Louis
5804 Hampton Ave, St. Louis, MO 63109, USA
Licensed & Insured
Services: Ac Installation
5
Hoffmann Brothers
1025 Hanley Industrial Ct, Brentwood, MO 63144, USA
Licensed & Insured
Services: Ac Installation
6
Design Aire Heating and Cooling
2550 Harley Dr, Maryland Heights, MO 63043, USA
Services: Ac Installation
7
Dole Heating & Air Conditioning
1920 S Broadway, St. Louis, MO 63104, USA
Services: Ac Installation
Sponsored
8
Rhymes Heating & Cooling
10958 Lin Valle Dr, St. Louis, MO 63123, USA
Services: Ac Installation
9
Faszold Heating and Cooling
1613 E Terra Ln, O'Fallon, MO 63366, USA
Services: Ac Installation
10
Hoffmann Brothers
1643 Tower Grove Ave, St. Louis, MO 63110, USA
Services: Ac Installation
How We Ranked These St. Louis Pros
Our rankings are based on a weighted evaluation of five key factors:
- Licensing & Insurance — All listed businesses hold active state licenses verified through official databases.
- Customer Reviews — We aggregate ratings from Google, Yelp, and the BBB, weighting recency and review volume.
- Response Time — Companies offering same-day or 24/7 emergency service score higher.
- Pricing Transparency — Businesses who offer flat-rate pricing or free estimates rank above those with opaque billing.
- Experience & Longevity — Years serving the St. Louis market and breadth of services factor into overall reliability.
Rankings are reviewed quarterly. Have a correction? Contact us.
Frequently Asked Questions
How much does ac installation cost in St. Louis?
Pricing varies. Get 2-3 local quotes.