Home - Air Conditioning

Air Conditioning Services

Expert Air Conditioning Services in Crystal Lake, Hillside & Beyond

Since 1961, Althoff Home Services has set the standard for residential cooling in the Northwest and Western Suburbs. Whether addressing an urgent repair or installing a high-efficiency system, our NATE-certified technicians provide thoughtfully engineered solutions built for lasting comfort.

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Family-owned
Since 1961

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24-Hour
Emergency Service

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100% Satisfaction
Guarantee

24/7 Emergency AC Repair

When your comfort is compromised, you need a team you can rely on. Althoff Home Services is available around the clock to restore cooling and peace of mind – no matter when an issue arises. Our experienced technicians respond promptly and arrive prepared to address urgent concerns with care and professionalism.

Contact us right away if you notice:

  • Warm Air:  Your system is running, but the air from your vents isn’t cool.
  • Unusual Noises: Grinding, squealing, or banging sounds from your equipment.
  • Short Cycling: Your system turns on and off more frequently than normal.
  • Moisture or Ice: Water leaks or ice buildup around your indoor or outdoor unit.

Questions? Contact Us Today!

Precision AC Installation & Replacement

A new air conditioning system is only as effective as its installation. At Althoff Home Services, we take the time to properly size your system using detailed load calculations that consider your home’s layout, insulation, and window placement. This helps ensure consistent comfort, improved efficiency, and dependable performance.

We specialize in:

  • Central Air Systems: High-efficiency cooling for homes with existing ductwork.
  • Ductless Mini-Splits: Flexible comfort solutions for additions, renovations, or older homes.
  • Heat Pumps: Efficient, all-in-one heating and cooling for year-round comfort.

Any Problem? We're Here to Help!

Preventive Maintenance & The White Glove Club

Routine maintenance helps keep your air conditioning system operating efficiently and reliably. Our comprehensive cooling tune-ups are designed to identify potential concerns early, support system performance, and help extend the life of your equipment.

Join the White Glove Club for:

  • Included Preventive Maintenance: Prescheduled visits to support system performance.
  • Enhanced Value & Protection: Equipment credits & warranty-backed repairs.
  • Priority Care & Scheduling: Preferred appointment availability when service is needed.
  • Exclusive Member Savings: Preferred pricing and rewards toward future services.

Questions? Contact Us Today!

Why Homeowners Hand it Off to Althoff

  • Legacy of Excellence: Family-owned and operated since 1961.
  • Root-Cause Solutions: We address the underlying issue, not just the symptom.
  • Upfront Pricing: Clear estimates with no hidden fees – just honest recommendations.
  • Respect for Your Home: We maintain a clean, professional workspace and treat your home with care.

Ready to beat the heat? Hand it off to Althoff!

Any Problem? We're Here to Help!

What Are Other Chicagoans Saying?

I just wanted to thank you for the great service we received over the past few days in repairing our furnace.

Mark Stephenson

4.8

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on 1094 reviews

Serving Chicago's Suburbs

We proudly serve homeowners throughout the following areas, delivering
reliable, high-quality service wherever you need us.

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Let’s get your project
started today!

We offer whole-home solutions, not just quick fixes.