8 AC Repair Contractors in DeKalb, IL
Top-Rated AC Repair Contractors in DeKalb
Service Now Home Services
“Positive reviews consistently cite same-day emergency response, technician courtesy, and thorough diagnostic explanations using camera inspection technology.…”
Lowe's Home Improvement
“Among 1,088 reviews, the 4.1-star average reflects consistent praise for team member helpfulness, with customers specifically naming associates like Angelina,…”
All AC Repair Contractors (8 total)
All-Star Heating & Air Conditioning Inc.
“138 reviews yield a 4.5-star average rating. Positive reviews frequently mention technicians arriving within…”
G's R Plumbing & Heating
“Three of five detailed reviewers mention specific technician names, with two positive accounts praising…”
DeKalb Mechanical, Inc.
“All 80 reviews award 5 stars, with technicians Onon, Riley, and unnamed staff receiving direct name…”
C & H Plumbing, Inc.
“Nine reviewers specifically mention technicians by name, Hart, Steve, and the crew, demonstrating…”
KM Heating and Cooling
“Eight reviews uniformly award five stars, with customers frequently naming individual technicians, Wes,…”
AC Repair Costs in DeKalb
Typical repair costs for DeKalb homeowners, by problem type.
| Service | Low | Average | High |
|---|---|---|---|
Diagnostic / service call Usually credited toward repair | $83 | $132 | $220 |
Refrigerant recharge (R-410A) | $165 | $385 | $770 |
Capacitor replacement | $132 | $275 | $495 |
Fan motor replacement | $275 | $495 | $770 |
Compressor replacement | $880 | $1,980 | $3,080 |
Evaporator coil repair | $440 | $990 | $1,650 |
Labor (hourly rate) Per hour during business hours | $83 | $121 | $165 |
Prices reflect continental metro averages compiled from published industry cost guides, contractor surveys, and regional labor data. Last updated: April 2026.
AC Repair in DeKalb, IL: What to Expect
Living in DeKalb means bracing for Chicago's temperature extremes. Winters here dip to around 18 F with bitter lake-effect windchill, while summers climb into the mid-80s with sticky humidity. Heating dominates the calendar, but when summer heat hits, AC Repair in DeKalb becomes urgent for homeowners trying to stay comfortable. Eight local contractors serve this community, averaging a respectable 4.7 stars across over 2,600 customer reviews.
Pricing for common AC services follows predictable patterns in this market. A standard diagnostic or service call runs between $83 and $220, while a refrigerant recharge using R-410A costs anywhere from $165 to $770 depending on system size and leak severity. Replacing a failed capacitor typically falls between $132 and $495. These figures reflect what most homeowners can expect to pay locally. Since Illinois does not require a statewide HVAC license, verifying a contractor's local credentials and insurance becomes especially important before agreeing to any work.
Customer feedback paints a clear picture of what separates quality service in DeKalb. Technicians Greg and Ricardo at Hero Heating earn consistent praise for transparent diagnostics and respectful communication, with many reviewers highlighting their same-day emergency availability. Service Now Home Services receives similar recognition for using camera inspection technology to explain issues visually, coupled with courteous same-day response during breakdowns. Both companies demonstrate that responsiveness and clear communication matter most to residents dealing with sudden AC failures.