One Call Away

From Comfort!

  • Service All Makes & Models
  • Family Owned & Locally Operated
  • 100% Satisfaction Guarantee
  • Free Estimates, Upfront Pricing

One Call Away

From Comfort!

  • Service All Makes & Models
  • Family Owned & Locally Operated
  • 100% Satisfaction Guarantee
  • Free Estimates, Upfront Pricing

Your Trusted HVAC Company in Crystal Lake & Surrounding Areas

Providing Reliable 24-Hour HVAC Services in Crystal Lake, Algonquin, Huntley, CaryMcHenry and surrounding areas.

Searching for dependable HVAC service, repairs or installation? Here at WeatherWise Heating & Cooling, we deliver high-quality heating and cooling services throughout Mchenry County and the greater area. With more than 50+ years of combined experience, we stand by our Air Conditioning and Furnace services with a 100% satisfaction guarantee.

We repair most heating and air makes and models and are happy to speak with you on the phone, free of charge, should you have any questions. We also offer year-round emergency services for heating & cooling units experiencing issues during the night, on weekends, or on holidays. WeatherWise guarantees a certified technician will be at your door within 24 hours of calling — with no trip fee!

We Service All Makes & Models

Lennox Repair Crystal Lake IL
Trane Repair or Install Crystal Lake IL

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Why Choose

WeatherWise Heating & Cooling?

Trusted HVAC Contractor For Your Home Service Needs

24-Hour Service Available

Family Owned & Operated

Up-Front Pricing & Financing

Highly Reviewed

100% Satisfaction Guarantee

Trained Technicians

Customer Reviews

CUSTOMER SATISFACTION IS OUR #1 PRIORITY

Tom Froelich
Tom Froelich
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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!
Cynthia Simmons
Cynthia Simmons
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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!
Ryan Gerstad
Ryan Gerstad
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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.
Sherry Douglas
Sherry Douglas
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Frank and crew are true professionals. They arrived promptly and proceeded to replace both my A/C and furnace. They explained everything about my new system and new thermostat. They even changed the filter placement to make it easier to replace. They are a wonderful family run company that I highly recommend.
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Air Conditioning Repair Crystal Lake IL

Discount Club Membership

30% OFF ALL HVAC REPAIRS

ANNUAL A/C & FURNACE TUNE-UPS

MEMBER ONLY PRICING

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HVAC Specials

Air Conditioning Repair Crystal Lake IL

$79

PRECISION FURNACE TUNE-UP

With this coupon. Cannot be combined with any other discounts, rebates or coupons. One coupon per call. Limited time only.

Air Conditioning Repair Crystal Lake IL

$119

WINTER COMBO SPECIAL

With this coupon. Cannot be combined with any other discounts, rebates or coupons. One coupon per call. Limited time only.

Air Conditioning Repair Crystal Lake IL

$750 OFF

FURNACE INSTALL REBATE

With this coupon. Cannot be combined with any other discounts, rebates or coupons. One coupon per call. Limited time only.

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