50 Commercial HVAC Contractors in St. Louis, MO
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Top-Rated Commercial HVAC Contractors in St. Louis
Hoffmann Brothers
“Across 6,117 reviews, a 4.9-star average reflects consistent praise for diagnostic thoroughness and clean work practices. Multiple reviewers explicitly mention…”
Classic Aire Care
“All 8 sampled reviewers awarded 4 or 5 stars, with 3 specifically mentioning same-day or urgent response times. Four reviewers named individual technicians…”
All Commercial HVAC Contractors (50 total)
Scott-Lee Company
“Among 2,238 reviews, nearly every customer awarded 5 stars, with multiple reviewers specifically naming…”
Seliga Heating and Cooling
“Every reviewer on record awards 5 stars to Seliga Heating and Cooling, with 1786 reviews averaging a perfect…”
All American Appliance Service,LLC.
“The 4.7-star average across 2,421 reviews indicates strong overall satisfaction, with positive feedback…”
Rhymes Heating & Cooling
“Every reviewer awarded 5 stars, with emergency responsiveness appearing repeatedly: one caller secured…”
Dole Heating & Air Conditioning
“Of 1,224 reviews averaging 4.9 stars, customers repeatedly mention same-day response and the owner's personal…”
Design Aire Heating & Cooling - St. Louis
“Of twelve sampled reviews, seven specifically mention same-day or next-day response times during emergencies,…”
Meyer Heating and Air
“100% of reviewers awarded 5 stars, with 4 of 5 sampled customers explicitly mentioning the same-day or…”
One Hour Heating & Air Conditioning® of St. Louis
“849 reviewers have awarded this contractor a 4.9-star average, with every customer who left a detailed review…”
Courtney's Heating & Cooling
“Positive reviews cite diagnostic skill and honesty as recurring strengths, while negative reviews point to…”
Vitt Heating & Cooling
“Five of six readable reviews award 5 stars, with the lone 4-star review citing a positive repair experience…”
St. Louis Heating and Air Conditioning
“All 440 reviews award 5 stars, with customers specifically naming Austin, Kevin, and Mandy as technicians who…”
Averill Heating & Air Conditioning
“239 reviewers award Averill a 4.9-star average, with multiple five-star reviews specifically citing same-day…”
JLM Heating and Air Conditioning
“All 165 reviewers awarded 5 stars, with multiple reviewers specifically praising the same-day or next-morning…”
ILLY HVAC
“All 155 reviewers awarded 5 stars, with customers consistently praising co-owners Doug and Jeff by name for…”
Marick Mechanical (Formerly Bieg Plumbing & Mechanical)
“Five of five detailed reviewers awarded five stars, with three specifically naming technician Matt for…”
T-Will Fix It
“159 reviewers consistently praise Terrell by name, with calls for punctuality, respect for homes, and…”
Walkers Heating and Cooling Services LLC
“The overwhelming majority of reviews award five stars, with customers consistently praising same-day response…”
Weis Comfort Systems
“5 of 6 reviewers award 5 stars, with two customers specifically praising technician Bill Colin's diagnostic…”
Galmiche & Sons Heating & Cooling
“Reviewers consistently highlight fast response times, with multiple customers noting same-day or next-morning…”
Kirkwood Heating & Air Conditioning
“Across 136 reviews, customers repeatedly mention same-day emergency response, with one Holiday weekend…”
Welsch Heating & Cooling
“Every reviewer who rated the company awarded 5 stars, with multiple customers specifically praising same-day…”
Breeze Heating and Cooling
“All five-star reviews name specific technicians, Chris, Dave, Patti, or Bob, demonstrating strong…”
Harster Heating & Air Conditioning
“Every reviewer awards 5 stars, with 4 of 5 reviewers specifically mentioning same-day service response.…”
Erie's Heating and Cooling LLC
“All 50 reviewers awarded 5 stars, with 6 reviewers specifically praising Eric by name. Three reviewers…”
G & A Heating & Cooling
“Every reviewer awarded a 5-star rating, with six of seven featured reviews mentioning same-day or emergency…”
Tri-State Mechanical Services, Inc.
“All six reviewers award 5-star ratings, with three specifically naming individual technicians (Justin, Tyler,…”
Commercial HVAC Costs in St. Louis
Commercial system pricing in St. Louis. Actual costs vary significantly by building size and system type. Request a site-specific quote.
| Service | Low | Average | High |
|---|---|---|---|
Annual maintenance (per rooftop unit) Quarterly inspections | $550 | $1,100 | $2,200 |
Annual contract (small business, < 5K sqft) | $1,100 | $2,750 | $5,500 |
Annual contract (mid-size, 5K-25K sqft) | $3,850 | $7,150 | $11,000 |
Basic rooftop unit replacement | $7,150 | $11,000 | $16,500 |
Small business full system (< 5K sqft) | $8,800 | $17,600 | $27,500 |
Mid-size building (5K-25K sqft) | $27,500 | $55,000 | $88,000 |
Operating cost (per sqft annually) Utility + maintenance | $2 | $4 | $7 |
Prices reflect continental metro averages compiled from published industry cost guides, contractor surveys, and regional labor data. Last updated: April 2026.
Commercial HVAC in St. Louis, MO: What to Expect
St. Louis’s weather presses commercial systems hard: long, humid summers with many 90°F days and winters averaging around 22°F require robust heating and cooling year-round. That stress fuels steady demand for commercial-hvac St. Louis providers. About 20 contractors serve the metro, earning an average 4.8 rating from 22,641 reviews, and 13 offer 24/7 service for urgent needs.
Specific line-item cost data from topCostItems isn’t available here, but businesses should expect variability by system size, installation complexity, and energy-efficiency choices. Many firms price preventative maintenance versus full replacement differently, and service agreements can shift first-year costs. Missouri’s lack of a statewide HVAC license means permit and licensing requirements will depend on local jurisdictions, so confirm local credentials before signing contracts.
Customer highlights weren’t provided in the dataset, yet review patterns are clear: consistently high ratings and widespread round-the-clock availability suggest responsive service across the market. For commercial buyers, prioritize contractors with verifiable local licensing, documented experience on similar buildings, transparent maintenance plans, and clear emergency response terms to keep operations running through St. Louis’s climate swings.
Frequently Asked Questions
Other HVAC Services in St. Louis, MO
All HVAC Contractors in St. Louis, MO
Complete directory of 100 contractors — browse alphabetically
A–Z
All HVAC Contractors in St. Louis, MO
Complete directory of 100 contractors — browse alphabetically
A
- A & A Heating & Air Conditioning LLC
- Action Heating & Cooling
- Air Conditioning & Heating St. Louis
- Air Conditioning & Heating St. Louis
- Air Conditioning & Heating St. Louis
- Air Conditioning And Heating in St. Louis
- Air Dynamics STL, LLC
- Air Management Supply
- Air Pro Heating & Cooling
- AL-DON Indoor Air Quality Specialists
- All American Appliance Service,LLC.
- American Heating & Air Conditioning
- Ashley Brothers Heating & Cooling
- Averill Heating & Air Conditioning
C
D
G
H
- Harster Heating & Air Conditioning
- Heating & Air Conditioning in St. Louis
- Heating & Air Conditioning in St. Louis
- Heating & Air Conditioning in St. Louis
- Heating & Cooling Experts in St. Louis
- Heating & Cooling Experts of St. Louis
- Heating and Cooling in St. Louis, MO
- Hoffmann Brothers
- Hoffmann Brothers
- Hvac Spot Coolers
- Hvac4all
S
- Scott-Lee Company
- Seliga Heating and Cooling
- Sewell Inc
- SMART St. Louis
- SmartHouse Heating and Cooling
- St Louis Air Mechanical
- St Louis Boiler Supply Co
- St Louis Heating and Cooling
- St. Louis AC and Heating Inc
- St. Louis Cooling & Heat Services
- St. Louis Heating & Air Conditioning
- St. Louis Heating & Air Conditioning
- St. Louis Heating & Cooling
- St. Louis Heating & Cooling
- St. Louis Heating and Air Conditioning
- St. Louis Heating And Air Conditioning
- St. Louis Heating and Cooling
- St. Louis Heating And Cooling
- Staples Heating & Air Conditioning St. Louis Service
- STL Air Pros HVAC