Readings shared after each visit
After every visit you get a short written summary of what was found, what was done and what happens next. Move over the photo for an illustrative thermal view.
HVAC Chicago IL: heating and cooling service and repair
When your furnace quits at 2 a.m. or your AC dies in a July heat wave, HVAC Chicago IL gets you back to comfortable fast. We handle furnace repair, AC service, boilers, radiators and heat pumps across Cook County. Licensed techs, stocked trucks, upfront pricing before we start.
- What needs attention
- How the system runs
- What it will take
Filter condition worth a lookCoil fins bent or cloggedFlue joints checked for tightness- Written scope firstPrice before any panel comes off
- Parts on the truckCommon failures fixed same visit
- Readings shown to youYou see the numbers we see
- Work area left cleanDrop cloths down, debris hauled out
Your HVAC Chicago IL team for every season
We test the system before we quote it, show you the readings, and explain what failed in plain terms. Repairs get verified through a full heating or cooling cycle. You get a short written summary of what was found and what was done.
HVAC in Chicago is a local heating and cooling contractor serving homes and small commercial buildings across Chicago, Illinois. We repair, replace and maintain furnaces, air conditioners, boilers, radiators and heat pumps. From a no-heat call in January to a tune-up in May, we diagnose the problem, explain your options and fix it quickly whenever parts allow.
What sets us apart is how we work: we show up when we say we will, stock the parts that fail most in Chicago homes, and quote the job before we touch a wrench. Our techs carry NATE Certification and EPA Section 608 Universal Certification, and we pull City of Chicago Mechanical Contractor License permits when a replacement requires one. From Lincoln Park greystones to Portage Park bungalows, we know how these buildings heat and cool.
- Thermostat call and control voltage
- Filter and blower airflow
- Ignition, flame and safety switches
Heating and cooling services we handle
One call covers the whole system. We repair and replace furnaces, AC units, boilers, radiators and heat pumps, and we run seasonal tune-ups that catch small problems before they become emergency HVAC repair in Chicago calls.
Furnace Repair
No heat, cold air from the vents, short cycling or a furnace that won't stay lit.
AC Repair
AC running but not cooling, warm air, ice on the lines or a unit that trips the breaker.
Boiler Repair
Boilers lose pressure, short cycle or quit firing entirely. We service Weil-McLain and Burnham units, test zone valves, circulator pumps and thermocouples, and purge air from hydronic lines.
Radiator Heat Repair
Steam radiator water hammer, cold radiators, leaking valves and uneven heat floor to floor.
Heat Pump Repair
Heat pumps that blow cold in heating mode, freeze up or fail to defrost. We test the reversing valve, defrost board and refrigerant charge, and repair or replace what's failed.
Emergency HVAC Service
No heat at 2 a.m., no cooling during a 95-degree weekend, or water pooling around the furnace.
Who we work with in Chicago
- Homeowners
- Landlords
- Property managers
- Small businesses
- Condo owners
On the first call
We ask what the system is doing, what you've already checked, and when it last ran correctly.
Request ServiceWhy Chicago homeowners call us first
We're not the biggest shop in Chicago, and that's on purpose. Smaller crews mean the tech who diagnoses your system is the one who fixes it, and you get a straight answer instead of a sales pitch.
Parts matched to your system
We check the model and serial before ordering, so the replacement part fits the equipment you actually have.
Old parts kept for review
Failed components stay with you until you've seen them, so nothing gets replaced without a reason.
What you take away
- Written summary of findings
- Photos of failed or worn parts
- Filter size and next service note
Talk to a tech first
Call or write and describe what the system is doing. We'll tell you what to check.
(312) 638-0812
Work area protected
System cycled before we leave
We run the equipment through a full start-to-stop cycle and confirm the fix holds under normal load.
How a service call works
No mystery, no waiting around all day. Here's the sequence from your first call to the moment your system is running again, whether it's a furnace repair Chicago North Side call or a full AC replacement in River North.
Call and describe it
Tell us what the system is doing. We ask a few questions, give you a realistic arrival window, and tell you what to check in the meantime, like whether the breaker tripped or the filter is clogged.
Diagnose and quote
The tech tests the system with the right instruments, shows you what failed, and hands you a written price before any work starts. You decide. No pressure and no sales games.
Repair and verify
We make the repair, then run the system through a full cycle. You'll see temperature rise or drop, amp draw and refrigerant pressures, so you know it's actually fixed and not just quiet for now.
Walkthrough and follow-up
Before we leave, we show you what we replaced, set the thermostat if needed, and note anything worth watching next season. If a part is under warranty, we handle the paperwork.
Problems we fix every week in Chicago
Chicago weather is hard on heating and cooling equipment. A system that ran fine in October can fail the first night it drops below 20 degrees.
Usually a failed hot surface igniter, dirty flame sensor or a gas valve that isn't opening. We test each one, replace the failed part from the truck, and confirm the burners light and hold before we leave.
Furnace Repair
Common causes are a frozen evaporator coil, low refrigerant from a leak, or a failed run capacitor. We thaw and inspect the coil, leak-test the system with an electronic detector, and repair or recharge as needed.
Radiator Heat Repair
Steam radiator water hammer and pressure loss usually trace back to trapped air, a failed vent or a bad zone valve. We purge the lines, replace the failed components, and balance the system so every radiator heats evenly.
Boiler Repair
Duct leakage and undersized returns are the usual culprits in Chicago homes. We measure airflow with an anemometer, seal accessible leaks, and recommend duct changes only when the readings show they'll actually help.
Talk it throughHVAC service across Chicago neighborhoods
We cover Chicago from the lakefront to the far Northwest Side, plus the surrounding Cook County suburbs.
View all service areas
Neighborhoods we cover around Chicago
Outside these areas? Call and ask, we may still be able to help.
- Lincoln Park
- Lakeview
- Wrigleyville
- Lincoln Square
- Ravenswood
- North Center
- Roscoe Village
- Logan Square
- Bucktown
- Wicker Park
- Ukrainian Village
- Uptown
- Edgewater
- Andersonville
HVAC in Chicago questions, answered
These are the questions we hear most from Chicago homeowners. If yours isn't here, call (312) 638-0812 and we'll give you a straight answer, no sales pitch.
Still have a question?
Describe what you are seeing and we will point you to the right next step.
(312) 638-0812We size every job with an ACCA Manual J Load Calculation and quote the full scope before we order equipment.
The right company is the one that diagnoses before it sells. Look for NATE Certification, EPA Section 608 Universal Certification and a City of Chicago Mechanical Contractor License. Ask whether the diagnostic fee is credited toward the repair, and whether they stock common parts. We do all three, and you can call us at (312) 638-0812 to test it.
Yes. HVAC work in Chicago requires a City of Chicago Mechanical Contractor License, and refrigerant handling requires EPA Section 608 Universal Certification. Illinois also regulates contractor registration at the state level. Ask any contractor for their license before work starts, and verify it. We carry both and pull permits on replacements.
Carrier, Trane, Lennox, Rheem, Goodman, Bryant and American Standard all make equipment that holds up in Chicago's climate when it's sized and installed correctly. Installation quality matters more than the badge. We install AHRI Certified Equipment and match the system to your ductwork, which is where most reliability problems actually start.
Ask three things: are you licensed and insured, will you quote the job in writing before starting, and do you stock parts or schedule a return trip. A tech who shows up with a manifold gauge set, combustion analyzer and digital multimeter can diagnose on the first visit. If a company can't answer those questions clearly, keep calling.
Need HVAC in Chicago service today?
(312) 638-0812No heat, no cooling, or a system making noise you don't like? Call (312) 638-0812. We'll give you a real arrival window, a straight diagnosis and a price before we start.
Get in touch with us
Call (312) 638-0812 or email [email protected] and tell us what your system is doing. We answer the phone during business hours and connect urgent no-heat and no-cooling calls with available local technicians. If you leave a message after hours, we'll call you back with a plan.
- Phone
(312) 638-0812 - Email
[email protected] - Address
1812 S Dearborn St, Chicago, IL 60616