15 AC Installation Contractors in St. Charles, IL
Top-Rated AC Installation Contractors in St. Charles
McNally's Heating and Cooling
“Every client rating across all four displayed reviews awards five stars. Customers consistently reference specific team members, Russ, Garett, Luis, Chris,…”
One Hour Heating & Air Conditioning
“Across 1,885 reviews, the company maintains a 4.9-star average with zero one-star ratings visible in the sampled feedback. Multiple reviewers explicitly praise…”
All AC Installation Contractors (15 total)
Service Plus Heating & Cooling
“All 193 reviews carry 5-star ratings, reflecting perfect reviewer satisfaction. Customer accounts emphasize…”
Cool Operator Heating and Cooling Inc.
“Of 144 total reviews, the aggregate rating sits at 4.3 stars, indicating a majority of satisfied clients.…”
Eco Temp HVAC
“Every reviewed technician earned a perfect 5-star rating, with Jordan, Tyler, Marco, and Shawn each named by…”
American Mechanical Heating & Cooling
“All 59 reviewers award 5-star ratings, with Ricardo named as the responding technician in every detailed…”
Performance Heating & Air
“Forty-three client reviews yield a perfect 5.0 average rating. Reviewers consistently cite thorough cleanup…”
Shark Heating & Air Conditioning Inc
“All seven reviews award five stars, with customers praising fair pricing, honest assessments, and the…”
Harmonic Heating & Air Conditioning, Plumbing & Electric Saint Charles
“All 6 reviewers awarded 5 stars, with technicians Nate, Kenny, and Liz specifically named across feedback.…”
DeLuxe HVAC/R, Inc.
“Three reviewers awarded 5 stars, with each praising different strengths: technical knowledge, fair pricing,…”
Heating & Air Conditioning
“Three of six reviewers award five stars, praising same-day response and honest assessments, while two…”
Sun Mechanical Systems Inc
“Three of five reviewers awarded five stars, with positive feedback citing professional installation and…”
Docs HVAC
“One five-star review highlights professionalism and punctuality during an installation, with the reviewer…”
AC Installation Costs in St. Charles
New central AC installation costs in St. Charles, by system type and brand.
| Service | Low | Average | High |
|---|---|---|---|
Window unit | $168 | $392 | $784 |
Ductless mini-split (single zone) | $2,240 | $5,040 | $8,960 |
Central AC replacement (existing ducts) | $3,920 | $7,280 | $13,440 |
Central AC new install (with ductwork) | $7,840 | $13,440 | $22,400 |
Carrier (residential) | $4,256 | $6,944 | $11,760 |
Trane (residential) | $5,600 | $9,856 | $15,232 |
Lennox (residential) | $3,920 | $7,280 | $13,440 |
Rheem (residential) | $3,584 | $6,160 | $10,080 |
Prices reflect continental metro averages compiled from published industry cost guides, contractor surveys, and regional labor data. Last updated: April 2026.