14 HVAC Service Contractors in DeKalb, IL
Top-Rated HVAC Service Contractors in DeKalb
uBreakiFix - Phone and Computer Repair
“All 1,087 reviews contribute to a 4.8-star rating, with positive feedback frequently mentioning same-day turnaround and technicians who explain repair…”
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 HVAC Service Contractors (14 total)
All-Star Heating & Air Conditioning Inc.
“All five sampled reviewers awarded 5-star ratings, with three specifically mentioning same-day or Sunday…”
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…”
High-Low Voltage Electrical
“All five reviewers awarded five stars, with three specifically mentioning same-day or short-notice service.…”
Sears Appliance Repair
“Two positive five-star reviews specifically mention technician Steve and describe methodical diagnostic…”
KM Heating and Cooling
“Eight reviews uniformly award five stars, with customers frequently naming individual technicians, Wes,…”
Newton's Refrigeration Spec
“4 reviews, all 5-star ratings, with customers specifically praising same-day service, reasonable pricing, and…”
1 Source Mechanical
“Limited review data exists for this contractor, with a single five-star review currently recorded. This…”
Irving Construction Co., Inc.
“No customer reviews have been submitted for this contractor listing. A rating of 0.0 stars reflects zero…”
HVAC Service Costs in DeKalb
General HVAC service pricing across maintenance, repair, and installation in DeKalb.
| Service | Low | Average | High |
|---|---|---|---|
Service call / diagnostic | $81 | $130 | $216 |
Routine tune-up (single system) | $76 | $135 | $216 |
Standard repair (avg) | $162 | $648 | $1,296 |
Major repair (compressor, heat exchanger) | $1,620 | $2,700 | $3,780 |
New system installation (mid-range) | $7,020 | $11,340 | $15,120 |
Full HVAC replacement AC + furnace combined | $12,517 | $14,504 | $15,228 |
Prices reflect continental metro averages compiled from published industry cost guides, contractor surveys, and regional labor data. Last updated: April 2026.
HVAC Service in DeKalb, IL: What to Expect
DeKalb sits in the Chicago metropolitan area, where winter temperatures drop to around 18 degrees with brutal lake-effect wind chills making furnaces work overtime, while summers reach the mid-80s with moderate humidity. Heating demand in this region far exceeds cooling needs, which makes reliable HVAC service in DeKalb essential for homeowners. Eight contractors serve this area collectively, and their combined average rating sits at 4.7 stars based on more than 1,700 customer reviews.
Contractors in this market typically charge $81 to $216 for a service call and diagnostic fee. A routine single-system tune-up runs $76 to $216, while standard repairs average $162 to $1,296 depending on parts and labor. Because Illinois does not require a statewide HVAC license, local licensing requirements apply in DeKalb, meaning customers should verify a contractor's credentials directly with city or county authorities before authorizing work.
Customer reviews reveal distinct strengths among local providers. Technicians Greg and Ricardo at Hero Heating earn repeated praise for their diagnostic explanations and respectful communication, with positive reviewers frequently mentioning same-day emergency response. All-Star Heating and Air Conditioning technicians often arrive within hours of the initial call and provide itemized quotes before work begins, a practice that sets clear expectations. Lowe's Home Improvement associates, including staff members Angelina and Travis, receive specific mentions for helpfulness across a large volume of reviews totaling over 1,000.