Specials

$88 A/C & Furnace Cleaning & Inspection

Our Clients Reviews

Heating & Cooling

In Crystal Lake & Surrounding Areas

Serving McHenry, Lake, Kane & Cook County!

Schedule Service or call us today 815-477-7766

Family Owned
& Locally Operated

100% Satisfaction
Guarantee

Service All HVAC
Makes & Models

Free Estimates
Upfront Pricing

Expert Heating
& Cooling in
McHenry, Lake, Kane
& Cook County!

With more than 50 years of professional experience, our team WeatherWise Heating & Cooling has been providing quality heating and cooling services to Crystal Lake and beyond.

Our family owned and operated business is committed to providing you the best HVAC equipment and repairs to stay comfortable in Illinois.

Our highly skilled technicians can fix any of your HVAC problems on the same-day at an affordable price. Whether you are a homeowner needing heating and air repairs, or a commercial business that needs help with their complex HVAC system, we are here to fix it. We also offer financing on approved credit and maintenance programs to prevent costly air conditioning and heating repairs.

Trusted Crystal Lake HVAC Repair
& Installation Professionals

When you choose WeatherWise to be your HVAC company, you will receive quality service at an affordable price.
We are committed to serving the best comfort in the McHenry, Lake, Kane and Cook county since 1985.

Furnace Repair

AC Repair

Furnace Replacement

AC Replacement

Questions? We Can Help! Contact Us Today!

Schedule Service Call Us Today 815-477-7766

Our Service Plan

Everything's Better
with WeatherWise!

When you choose WeatherWise to be your HVAC company, you will receive quality service at an affordable price. We are committed to serving the best comfort in the McHenry, Lake, Kane and Cook county since 1985.

Did Someone Say Blazing Hot Deals?

At WeatherWise Heating & Cooling, we don't want money to get in the way of our customers home comfort.
That's why we offer monthly coupons and promotional financing with approved credit. With us, you can gain the comfort you desire that is budget friendly. Find out more about our Financing Programs and see what works best for you.

$88

A/C & Furnace Cleaning & Inspection

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

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$59

Furnace Cleaning & Inspection

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

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$100 Off

Any Standard Hot Water Heater Tank Install

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

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Why Choose Us

WeatherWise
Heating & Cooling

Proudly Servicing Locals
for 40 Years

For over 40 years, WeatherWise Heating & Cooling has been providing same day, heating and cooling services to customers in Crystal Lake and surrounding areas.

We service Crystal Lake
and the surrounding area

Whether you need help with an air conditioning repair, furnace repair, full hvac replacement, mini ductless systems or indoor air quality, you can always count on WeatherWise to get the job done. Located in Crystal Lake and serving the greater areas.

We Serve All Makes
and Models

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 provide reliable, unmatched HVAC service and innovative products from leading manufactures like Carrier®.

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