8 HVAC Maintenance Contractors in O'Fallon, MO
Top-Rated HVAC Maintenance Contractors in O'Fallon
Hoff Heating & AC
“Every reviewer awarded five stars, with 1,515 total ratings reflecting consistent satisfaction. Customers frequently cited technician professionalism, same-day…”
Stay Cool Climate Control
“1,096 reviews yield a perfect 5.0-star rating, with customers consistently highlighting same-day emergency response times, transparent pricing, and technicians…”
All HVAC Maintenance Contractors (8 total)
Swiss Air Heating & Cooling
“Three of four detailed reviews award five stars, praising same-day arrival, thorough diagnostics, and…”
Faszold Heating and Cooling
“870 reviews yield a 4.9-star average; positive feedback emphasizes sales transparency and clean installations…”
AAA Home Services
“Four of five named reviewers recount positive experiences citing individual technicians by name, while three…”
KirbnJays Heating & Cooling
“347 reviews yield a 4.9-star average, with every published rating awarding 5 stars. Multiple customers…”
HVAC Maintenance Costs in O'Fallon
Routine tune-up and maintenance plan pricing for O'Fallon homeowners.
| Service | Low | Average | High |
|---|---|---|---|
Single AC tune-up | $72 | $129 | $206 |
Single furnace tune-up | $82 | $139 | $227 |
Full HVAC inspection | $155 | $283 | $412 |
Annual maintenance plan Includes 2 visits/year + discounts on repairs | $124 | $247 | $371 |
Premium maintenance plan Priority service + free diagnostics | $206 | $361 | $515 |
Duct cleaning (full home) | $309 | $489 | $824 |
Filter replacement (per filter) | $15 | $36 | $77 |
Prices reflect continental metro averages compiled from published industry cost guides, contractor surveys, and regional labor data. Last updated: April 2026.