6 Commercial HVAC Contractors in St Peters, MO
Top-Rated Commercial HVAC Contractors in St Peters
Jerry Kelly Heating, Air Conditioning, Electrical & Plumbing
“Six thousand seven hundred thirty-nine reviews yield a 4.9 average rating, with every sampled review awarding five stars. Technicians named individually appear…”
Air Comfort Service Inc.
“Every one of the 1,181 reviews awards five stars, with zero sub-three-star ratings recorded. Emergency response appears repeatedly, including same-day arrival…”
All Commercial HVAC Contractors (6 total)
Ozark Mechanical
“All eight sampled reviewers award 5 stars, with three specifically mentioning same-day or emergency response…”
Cisco Inc
“All seven sampled reviewers award five stars, with four explicitly mentioning same-day or emergency response…”
Commercial HVAC Costs in St Peters
Commercial system pricing in St Peters. 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 Peters, MO: What to Expect
Living in the St. Peters corner of the St. Louis metro means coping with summers that regularly push into the 90s with stretches of sweltering days, paired with winters where temperatures settle around 22 degrees. That full continental pressure keeps commercial HVAC systems running year-round, and area businesses need partners who understand those peaks. Six contractors serve Commercial HVAC in St Peters, and their collective 4.9 average rating tells you the market takes seriously the need for reliable temperature control.
Pricing reflects system scope and building size. Annual maintenance on a rooftop unit runs $550 to $2,200. A small-business contract covering under 5,000 square feet typically costs $1,100 to $5,500 yearly, while mid-size properties between 5,000 and 25,000 square feet see annual contracts from $3,850 up to $11,000. Missouri does not issue a statewide HVAC license, so contractors operate under local permitting rather than state oversight.
Client feedback points to distinct approaches worth noting. At Jerry Kelly Heating, Air Conditioning, Electrical & Plumbing, reviewers mention technicians by name in roughly one-third of posts, suggesting clients value consistent relationships with specific techs. Air Comfort Service Inc. draws repeated praise for emergency response, including accounts of same-team arrivals during frigid conditions. One recent comment on No Problem Heating and Cooling flags warranty and financing clarity as something worth discussing before signing.