Quality Service
Always Guaranteed.

Do you feel like your home’s air is stagnant or causing discomfort? Are you struggling with allergies or health issues? Consider CRS Heating and Air Conditioning, Inc. for indoor air quality services in McHenry, IL.

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Your Trusted HVAC Contractor.

With a rich history spanning 31 years, CRS Heating and Air Conditioning Inc. has been providing top-notch heating, air conditioning, and indoor air quality services to the McHenry County area. 

Our team has grown, and we now boast a fleet of service vehicles, ensuring we possess the skills, equipment, and expertise to complete every job with excellence and efficiency.

Our Commitment To You: Timely, Precise, Fair, Thorough, Clean, And Safe.

We’re dedicated to ensuring your experience aligns with these values. Quick and hassle-free assistance is just a call, click, or text away anytime, day or night. Failure is never an option, and you can rely on us for outstanding service that brings exceptional value because your success is our utmost priority.

Boilers

Our top priority is your well-being, so we offer comprehensive air quality services. From high MERV-rated air filters, UV light systems, and automatic humidification, we ensure that the air you breathe is free from dust, allergens, and other harmful particles.

Air Conditioning

Our air conditioning services come to the rescue when the summer heat becomes unbearable. Our team specializes in AC installations and repairs, ensuring you stay relaxed and comfortable even during the hottest days. 

 
 
Heating

When winter knocks on your door, our heating services greet it head-on. Our technicians are experts in all brands and types of heating systems, from furnaces and water boilers to radiant heating. 

Why Choose Us

Whether you’re grappling with a burst pipe, a malfunctioning AC unit, or a clogged furnace filter, you can relax knowing that CRS Heating and Air Conditioning, Inc. is your trusted partner, delivering a 5-star experience.

Trained Experts You Can Rely On

Our highly trained experts are devoted to convenience and even offer same-day service whenever possible.

Reliability and Experience

Count on our years of industry experience and proven reliability. We deliver dependable solutions you can trust, every time.

Quality of Service and Customer Satisfaction

Experience top-notch service with a focus on your complete satisfaction. Our commitment to quality ensures you receive the best care and support.

Range of Services and Products

Explore our wide selection of services and products tailored to meet all your needs. From repairs to replacements, we’ve got everything covered.

Our Service Area

We proudly serve a broad region, including Algonquin, Arlington Heights, and Barrington. Our coverage extends through Buffalo Grove, Crystal Lake, Schaumburg, and beyond. From Elgin to Wauconda, we’re committed to providing top-notch service across our entire area. Wherever you are, we’re here to meet your needs with excellence.

  • Algonquin
  • Arlington Heights
  • Barrington
  • Bartlett
  • Buffalo Grove
  • Bull Valley
  • Cary
  • Crystal Lake
  • Deer Park
  • Elgin
  • Greenwood
  • Hanover Park
  • Hawthorn Woods
  • Johnsburg
  • Kildeer
  • Lake Barrington
  • Lake Zurich
  • Lakemoor
  • Libertyville
  • Long Grove
  • McHenry
  • Mundelein
  • Nunda
  • Palatine
  • Rolling Meadows
  • Schaumburg
  • South Barrington
  • Streamwood
  • Vernon Hills
  • Volo
  • Wauconda
  • Wonder Lake
Success Stories
Michael G.
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I have used CRS for several years. The staff is knowledgeable, professional, and friendly. I've had repairs and maintenance done by them and my expectations have always been met. I especially like the text messages letting me know exactly who the technician is that's coming to my house, and what time they will arrive.
Donna C.
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I loved working with a female owner business. The owner Erin was so nice and attended to details for my AC purchase. I needed a hard to find size so I didn’t have to spend extra to hire a crane for condo roof delivery. My main installer was Mike. Over 30 years of experience did an awesome job. They were on time, very clean and even made it easier for me to be able to change filters. I highly recommend this company.
Chris W.
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The technician who came to my house today to repair my furnace was professional, informative, punctual and got my furnace up and running within a couple hours. I will definitely be reaching out to CRS again for yearly maintenance on my HVAC and plumbing system. Thanks for the help Cody, service was great.
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