700+ 5-Star Reviews

Fast, Reliable AC Repair When It Matters

Your Special Offer + Our Promise

  • Trust-Building Checkmark Statements

  • Includes Comprehensive System Check

  • Helps Prevent Emergency Repairs

  • Extends Equipment Lifespan

  • Improves Cooling Efficiency

  • Lower Monthly Utility Bills

  • Performed by Certified Technicians

  • Boosts Home Comfort

  • One Month Free Level-Up Club

AC Repairs Done Right—fast, Friendly, Professional

When your AC stops working or isn’t cooling like it should, our trained technicians are ready to diagnose and fix the issue fast. We handle everything from strange noises to complete breakdowns—restoring comfort without delay.

Our Services:

  • AC Coil Cleaning

  • AC Filter Replacement

  • AC Installation

  • AC Maintenance

  • AC Repair

  • Ductless Mini-Split

  • Furnace Installation

  • Furnace Maintenance

  • Furnace Repair

  • Heat Pumps

  • HVAC Zoning

Hear From A Recent Customer

I had my air conditioner go out. Kristian came out and assessed the system for me. He was great. He pointed out what the problems were and gave me options. He was very personable and knowledgeable about my system. He took the time to explain everything in detail and I didn’t feel pressured in any of Kristian’s solutions to get my system up and running or even replacing if necessary. I would highly recommend Leith Heating and Cooling for servicing your HVAC system and I would ask for Kristian. He was great to work with.

Eric Reinhardt

Satisfied Customer

No Guesswork—just Fast, Reliable Fixes

We don’t guess—we troubleshoot. Our team uses advanced diagnostic tools to identify the problem and perform lasting repairs that get your system back up and running quickly. No band-aids, just real solutions.

Reliable AC Repairs You Can Trust

From electrical issues to refrigerant leaks, we repair all makes and models. Our goal is to restore reliable cooling while helping you avoid repeat problems and unnecessary costs. You can count on honest answers and quality workmanship.

AC Repair FAQs

How do I know if my AC needs repair?

Signs include warm air, weak airflow, unusual sounds, frequent cycling, or sudden spikes in energy bills.

Can I run my AC if it's not cooling properly?

It's best to turn it off. Running a damaged system can lead to bigger and more expensive problems.

What are common AC issues you fix?

We handle broken compressors, refrigerant leaks, capacitor failures, thermostat malfunctions, and more.

How long does a typical repair take?

Many issues can be resolved in a single visit, depending on part availability and system complexity.

Will repairs extend the life of my unit?

Yes. Timely repairs can prevent further damage and keep your system running efficiently.

Is emergency repair service available?

Yes. We're here when your AC stops working and you need quick relief.

Areas We Serve

  • Addison

  • Algonquin

  • Arlington Heights

  • Barrington

  • Barrington Hills

  • Bartlett

  • Batavia

  • Bloomingdale

  • Buffalo Grove

  • Burlington

  • Carol Stream

  • Carpentersville

  • Crystal Lake

  • Deer Park

  • Dundee

  • East Dundee

  • Elgin

  • Elk Grove Village

  • Fox River Grove

  • Geneva

  • Genoa

  • Gilberts

  • Glendale Heights

  • Hampshire

  • Hanover Park

  • Hoffman Estates

  • Huntley

  • Inverness

  • Itasca

  • Lake Barrington

  • Lake In The Hills

  • Lake Zurich

  • Lakewood

  • Mount Prospect

  • Palatine

  • Pingree Grove

  • Plato Center

  • Rolling Meadows

  • Roselle

  • Schaumburg

  • Sleepy Hollow

  • South Barrington

  • South Elgin

  • St. Charles

  • Streamwood

  • Wayne

  • West Chicago

  • West Dundee

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