AC Repair in McHenry and Surrounding Areas

No cold air? Weird noise? System won’t start? CRS Heating and Air Conditioning, Inc. provides fast, honest air conditioning repair throughout McHenry and the surrounding areas. We work on all major brands — even older systems — and we’ll never push a replacement you don’t need.

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Common AC Issues We Repair

Warm air coming from vents
AC unit won’t turn on or keeps shutting off
Frozen coils or water pooling around the unit
Weak or no airflow from registers
Unusual noises: buzzing, banging, or squealing
Bad odors when system runs
Thermostat not responding or reading incorrectly
Outdoor condenser not running

What to Expect with CRS

Fast Diagnosis

We show up on time, assess the full system, and explain what’s wrong in plain language.

Transparent Pricing

You’ll get a clear quote up front — no hidden fees, no surprises.

Lasting Repairs

We use brand-compatible parts and proven solutions. We don’t patch and run.

Respectful Service

We wear boot covers, protect your space, and treat your home like our own.

Dedicated to Providing Quality HVAC

Local and Reliable

CRS is woman-owned, based in McHenry, and built on integrity. When you call us, you get real technicians — not subcontractors or salespeople. We're proud to serve homeowners throughout McHenry and surrounding areas with cooling service you can trust.

24/7 Emergency Services

We understand that HVAC emergencies can happen anytime, day or night. That's why we offer 24/7 emergency services to our customers. Call us anytime and we'll be there to help you out.

Request AC Repair Today

We offer flexible scheduling and quick turnaround when your AC is acting up.

Use the contact form or call (630) 940-9155 now to schedule your service.

Request AC Repair Today

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CRS Heating and Air Conditioning, Inc.

Woman Owned & Operated in McHenry, IL

(630) 940-9155

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