HVAC Repair in the Greater Chicago Area
Need fast HVAC repair today? We fix furnaces and ACs across the Greater Chicago Area with NATE-certified technicians and transparent, upfront pricing. Serving Chicagoland, including Chicago, Evanston, and Schaumburg. Backed by a 4.7 rating from 22,774 reviews and strong guarantees. Before summer heat or winter cold, we can help. Call 888-903-4070 for a free HVAC repair quote or book online.
Why Choose Us
What Our Customers Say
"Great service, technician was very knowledgeable and was able to resolve HVAC issue."
"He quickly diagnosed and fixed the AC drainage block. Professional and courteous throughout."
"He walked us through every step of our AC repair. Professional and pleasant service."
Answers to Common Questions
View All FAQsWhy Is My AC Running But Not Cooling Properly?
Your AC may be running but not cooling due to airflow restrictions or refrigerant issues. Common causes include a clogged air filter, a blocked or dirty outdoor condenser, iced evaporator coil, thermostat missettings, duct leaks, or a failing compressor. ABC’s NATE-certified technicians provide 24/7 emergency AC repair and maintenance to diagnose and fix the root cause.
Quick checks:
- Replace or clean the air filter.
- Set thermostat to Cool and fan Auto.
- Clear debris from the outdoor unit.
- Check closed vents or blocked returns.
Need help in Chicago, IL? Call (888) 991-3942 or book online.
"Not only did he fix my AC in a short amount of time, he explained everything." — Temi O.
[0] https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChZDSUhNMG9nS0VJQ0FnSURMb09Ha013EAE!2m1!1s0x0:0x397ba308998f7311!3m1!1s2@1:CIHM0ogKEICAgIDLoOGkMw%7CCgwI9qbmswYQkPvnowM%7C?hl=en-US[1] https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChZDSUhNMG9nS0VJQ0FnSUROdVpHeVRBEAE!2m1!1s0x0:0x397ba308998f7311!3m1!1s2@1:CIHM0ogKEICAgIDNuZGyTA%7CCgwIsuWptQYQgLb38wI%7C?hl=en-US[2] https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChdDSUhNMG9nS0VJQ0FnSURMME1fTl9nRRAB!2m1!1s0x0:0x397ba308998f7311!3m1!1s2@1:CIHM0ogKEICAgIDL0M_N_gE%7CCgwIzZ3nswYQ2KHIiwM%7C?hl=en-US[3] https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChZDSUhNMG9nS0VJQ0FnSUQzcDZ2dFNREAE!2m1!1s0x0:0x397ba308998f7311!3m1!1s2@1:CIHM0ogKEICAgID3p6vtSQ%7CCgwIvPzyuQYQoOL3vQE%7C?hl=en-GB[4] https://www.4abc.com/il/skokie/[5] https://www.4abc.com/il/lake-forest/[6] https://www.4abc.com/il/about-you/ultimate-advantage-club/[7] https://www.4abc.com/sitemap/[8] https://www.4abc.com/fl/land-o-lakes/[9] https://www.4abc.com/il/plumbing/water-line-repair-replacement/[10] https://www.4abc.com/fl/town-n-country/[11] https://www.4abc.com/fl/dunedin/Why Is My AC Running But Not Blowing Cold Air?
Your AC can run but not blow cold air due to airflow, refrigerant, or control issues. Typical causes include a dirty air filter, a blocked outdoor condenser, or a frozen evaporator coil. Low refrigerant from a leak can stop cooling. Thermostat faults, a failed blower, or duct problems can also prevent cold air. Our NATE-certified technicians in Chicago diagnose and repair AC issues 24/7. We offer no-surprises pricing and a satisfaction guarantee.
- Set thermostat to COOL and 3–5 degrees below room temp.
- Replace a dirty filter.
- Clear debris from the outdoor unit.
- Check the breaker and furnace switch.
- If lines are iced, turn cooling off and run the fan to defrost.
"Not only did he fix my AC in a short amount of time, he explained everything." — Temi O.
[0] https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChZDSUhNMG9nS0VJQ0FnSURMb09Ha013EAE!2m1!1s0x0:0x397ba308998f7311!3m1!1s2@1:CIHM0ogKEICAgIDLoOGkMw%7CCgwI9qbmswYQkPvnowM%7C?hl=en-US[1] https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChZDSUhNMG9nS0VJQ0FnSUROdVpHeVRBEAE!2m1!1s0x0:0x397ba308998f7311!3m1!1s2@1:CIHM0ogKEICAgIDNuZGyTA%7CCgwIsuWptQYQgLb38wI%7C?hl=en-US[2] https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChdDSUhNMG9nS0VJQ0FnSURMME1fTl9nRRAB!2m1!1s0x0:0x397ba308998f7311!3m1!1s2@1:CIHM0ogKEICAgIDL0M_N_gE%7CCgwIzZ3nswYQ2KHIiwM%7C?hl=en-US[3] https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChZDSUhNMG9nS0VJQ0FnSUQzcDZ2dFNREAE!2m1!1s0x0:0x397ba308998f7311!3m1!1s2@1:CIHM0ogKEICAgID3p6vtSQ%7CCgwIvPzyuQYQoOL3vQE%7C?hl=en-GB[4] https://www.4abc.com/il/skokie/[5] https://www.4abc.com/il/lake-forest/[6] https://www.4abc.com/il/about-you/ultimate-advantage-club/[7] https://www.4abc.com/sitemap/[8] https://www.4abc.com/fl/land-o-lakes/[9] https://www.4abc.com/il/plumbing/water-line-repair-replacement/[10] https://www.4abc.com/fl/town-n-country/[11] https://www.4abc.com/fl/dunedin/What Is The $5000 Rule For HVAC Repair Or Replacement?
The “$5,000 rule” means you multiply your HVAC system’s age (in years) by the repair estimate. If the result is over 5,000, replacement is often the better value. If it’s under 5,000, repair can make sense. This is only a guideline. In Chicago homes, our NATE-certified technicians verify with an on-site inspection and an upfront, no-surprises price. We’re available 24/7 and price by the job, not the hour.
<br/> Updated: 2026-01-02 00:00:00 <br/>Need help in Chicago, IL? Call (888) 991-3942 or book online.
"Great service, technician was very knowledgeable and was able to resolve HVAC issue." — Kenyon D.
[0] https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChZDSUhNMG9nS0VJQ0FnSURMb09Ha013EAE!2m1!1s0x0:0x397ba308998f7311!3m1!1s2@1:CIHM0ogKEICAgIDLoOGkMw%7CCgwI9qbmswYQkPvnowM%7C?hl=en-US[1] https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChZDSUhNMG9nS0VJQ0FnSUROdVpHeVRBEAE!2m1!1s0x0:0x397ba308998f7311!3m1!1s2@1:CIHM0ogKEICAgIDNuZGyTA%7CCgwIsuWptQYQgLb38wI%7C?hl=en-US[2] https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChdDSUhNMG9nS0VJQ0FnSURMME1fTl9nRRAB!2m1!1s0x0:0x397ba308998f7311!3m1!1s2@1:CIHM0ogKEICAgIDL0M_N_gE%7CCgwIzZ3nswYQ2KHIiwM%7C?hl=en-US[3] https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChZDSUhNMG9nS0VJQ0FnSUQzcDZ2dFNREAE!2m1!1s0x0:0x397ba308998f7311!3m1!1s2@1:CIHM0ogKEICAgID3p6vtSQ%7CCgwIvPzyuQYQoOL3vQE%7C?hl=en-GB[4] https://www.4abc.com/il/skokie/[5] https://www.4abc.com/il/lake-forest/[6] https://www.4abc.com/il/about-you/ultimate-advantage-club/[7] https://www.4abc.com/sitemap/[8] https://www.4abc.com/fl/land-o-lakes/[9] https://www.4abc.com/il/plumbing/water-line-repair-replacement/[10] https://www.4abc.com/fl/town-n-country/[11] https://www.4abc.com/fl/dunedin/What Is The $5000 Rule For HVAC And How Does It Affect Costs?
A hard “$5,000 rule” isn’t a reliable way to predict HVAC costs. The right choice is repair vs replace after an in‑home evaluation. We compare the repair estimate, system age, efficiency, and warranties, then present no‑surprises pricing and options. Our NATE‑certified techs service AC, heat pumps, ductless systems, thermostats, and ducts in Chicago and nearby suburbs.
Quick checks before we arrive:
- Gather recent repair estimates and note breakdown frequency.
- Note system age and comfort issues (hot/cold spots, humidity).
- Check if energy bills are rising.
- Bring any equipment or parts warranty info.
"Great service, technician was very knowledgeable and was able to resolve HVAC issue." — Kenyon D.
[0] https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChZDSUhNMG9nS0VJQ0FnSURMb09Ha013EAE!2m1!1s0x0:0x397ba308998f7311!3m1!1s2@1:CIHM0ogKEICAgIDLoOGkMw%7CCgwI9qbmswYQkPvnowM%7C?hl=en-US[1] https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChZDSUhNMG9nS0VJQ0FnSUROdVpHeVRBEAE!2m1!1s0x0:0x397ba308998f7311!3m1!1s2@1:CIHM0ogKEICAgIDNuZGyTA%7CCgwIsuWptQYQgLb38wI%7C?hl=en-US[2] https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChdDSUhNMG9nS0VJQ0FnSURMME1fTl9nRRAB!2m1!1s0x0:0x397ba308998f7311!3m1!1s2@1:CIHM0ogKEICAgIDL0M_N_gE%7CCgwIzZ3nswYQ2KHIiwM%7C?hl=en-US[3] https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChZDSUhNMG9nS0VJQ0FnSUQzcDZ2dFNREAE!2m1!1s0x0:0x397ba308998f7311!3m1!1s2@1:CIHM0ogKEICAgID3p6vtSQ%7CCgwIvPzyuQYQoOL3vQE%7C?hl=en-GB[4] https://www.4abc.com/il/skokie/[5] https://www.4abc.com/il/lake-forest/[6] https://www.4abc.com/il/about-you/ultimate-advantage-club/[7] https://www.4abc.com/sitemap/[8] https://www.4abc.com/fl/land-o-lakes/[9] https://www.4abc.com/il/plumbing/water-line-repair-replacement/[10] https://www.4abc.com/fl/town-n-country/[11] https://www.4abc.com/fl/dunedin/What Is Emergency HVAC Repair and When Is It Needed?
Emergency HVAC repair is rapid, 24/7 service to restore safe heating or cooling when a breakdown can’t wait. It’s needed if your AC or furnace won’t run, blows warm air in summer or cold in winter, trips breakers, leaks water, or you smell burning or gas. We service AC, heat pumps, mini-splits, air handlers, thermostats, and ducts in the Chicago area. NATE-certified technicians handle diagnostics and repairs with no-surprises pricing and a satisfaction guarantee.
Quick checks:
- Turn the system off if you smell burning or hear arcing.
- Verify thermostat settings and the breaker.
- Replace a clogged air filter.
"Great service, technician was very knowledgeable and was able to resolve HVAC issue." — Kenyon D.
[0] https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChZDSUhNMG9nS0VJQ0FnSURMb09Ha013EAE!2m1!1s0x0:0x397ba308998f7311!3m1!1s2@1:CIHM0ogKEICAgIDLoOGkMw%7CCgwI9qbmswYQkPvnowM%7C?hl=en-US[1] https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChZDSUhNMG9nS0VJQ0FnSUROdVpHeVRBEAE!2m1!1s0x0:0x397ba308998f7311!3m1!1s2@1:CIHM0ogKEICAgIDNuZGyTA%7CCgwIsuWptQYQgLb38wI%7C?hl=en-US[2] https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChdDSUhNMG9nS0VJQ0FnSURMME1fTl9nRRAB!2m1!1s0x0:0x397ba308998f7311!3m1!1s2@1:CIHM0ogKEICAgIDL0M_N_gE%7CCgwIzZ3nswYQ2KHIiwM%7C?hl=en-US[3] https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChZDSUhNMG9nS0VJQ0FnSUQzcDZ2dFNREAE!2m1!1s0x0:0x397ba308998f7311!3m1!1s2@1:CIHM0ogKEICAgID3p6vtSQ%7CCgwIvPzyuQYQoOL3vQE%7C?hl=en-GB[4] https://www.4abc.com/il/skokie/[5] https://www.4abc.com/il/lake-forest/[6] https://www.4abc.com/il/about-you/ultimate-advantage-club/[7] https://www.4abc.com/sitemap/[8] https://www.4abc.com/fl/land-o-lakes/[9] https://www.4abc.com/il/plumbing/water-line-repair-replacement/[10] https://www.4abc.com/fl/town-n-country/[11] https://www.4abc.com/fl/dunedin/
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Where We Work
What areas do you serve for hvac repair?
We serve the Greater Chicago Area, including Chicago, Evanston, and Schaumburg. Our team covers many nearby communities. See the full list below for your city.