AC Repair

In Crystal Lake & Surrounding Areas

Honest & Upfront Air Conditioning Reapir Service

Schedule Service or call us today 815-477-7766

Fall 2023

special promo

Special Carrier Furnace Promo

Up to $1,450

in Rebates



Our licensed air conditioning specialists know a thing or two about A/C repair. They also understand how uncomfortable and sometimes unsafe it can be to spend your time in a home or business without properly working air conditioning. Thanks to our 50 years in the heating and cooling business, our team of professionals at WeatherWise is trained to quickly and effectively target the issue with your AC system. You can rest assured our highly skilled technicians will provide you with a fair price and a willingness to answer any questions you may have before ever beginning any work on your AC unit. Our ultimate goal is your comfort both with our services and ultimately, in a cool home!

  • Thermostat replacement or repair
  • Heat pump repair and replacements
  • Air handlers service
  • Refrigerant replacement
  • 24 hour emergency repair service
  • Mulit-zone air conditioning systems
  • Humidifier service
  • Dehumidifier service

We repair most major makes and models of HVAC units and are happy to speak with you on the phone, free of charge, should you have any questions about your particular cooling system. We also offer year-round emergency services for cooling units experiencing unforeseen issues during the night, on weekends, or on holidays, and we can guarantee a certified technician will be at your door within 24 hours of calling — with no trip fee! Whatever your A/C needs may be, WeatherWise is committed to helping you solve the problem!

wwhc van

Why Choose Us

Heating & Cooling

Locally owned & operated professionals in air
conditioning, heating & plumbing service:


Satisfaction Guarantee


24/7 Emergency Service


Locally Owned


Competitive Pricing


Trained Technicians


Certified & Insured

Satisfied Clients

See Why Your
Neighbors Keep
Calling Us

Read All Reviews

I've been using WeatherWise for years and always happy with the service.

They are always on time and best of all, reasonably priced. It's hard to find a company in that industry that you can trust. They have been there when I needed them. I trust WeatherWise and have recommended their service for my neighbors who are also very happy. I recently had them install a new furnace and air conditioner and was surprised that both were installed in less than a day. Keep up the good work!

Tom Froelich


I had weather wise come out to my home to put on a new humidifier.

They completed the job quickly, professionally, and explained how everything worked to me and my husband. When the crew was finished, they left our basement neat, clean and tidy. For the price, you really can't beat their great service!

Cynthia Simmons


Weatherwise is amazing.

I can tell you that these guys really know what they are doing, they are priced very fair, and treat you like friends and family. Of all the service companies I have dealt with in my time they are by far the best. Frank, on behalf of my family and my self we thank you from the bottom of our hearts for your service. A new furnace 2 days before -25 degree temps is a huge relief. Thanks again and we will see you next fall for service.

Ryan Gerstad