Crystal Lake Heating

Repair & Installation Service

Also Serving Algonquin, Cary, Huntley, Lake In The Hills, McHenry and the greater areas.

Schedule Service or call us today 815-477-7766

Fall 2023

special promo

Special Carrier Furnace Promo

Up to $1,450

in Rebates

The Best Service for Heating Systems in Crystal Lake & Surrounding Areas

Professional heating and furnace contractors in the Northwest Suburbs.

Fireplaces and wood burning stoves might provide you with nice ambience, but the preferred and most efficient way of heating your home is with a gas furnace. When those cold winter nights arrive, WeatherWise Heating and Cooling wants to be sure you are prepared for the worst. Our knowledgeable, professional technicians pride themselves in providing reliable heating systems and equipment as well as maintenance, repairs, and emergency services to ensure your utmost comfort and safety. Whether you are looking for heat pumps, furnaces, ductless systems, hot water heaters, boilers, or garage heating systems, we are here to help you choose the proper HVAC components to fit your needs.

Check out our 4.9 star Google review ratings from past customers who have had new installed and replaced furnace systems in Crystal Lake & the greater areas. We work with the best manufactures to ensure quality heating systems at the best price. Our services include:

Contact us at 815.477.7766 today to schedule HVAC service with our team! We offer honest, upfront pricing in writing and industry leading warranties on parts and service.

Signs it’s Time to Replace your Furnace

We offer the following services for all residential and commercial heating services in Crystal Lake, IL. We are family owned and operated and provide a 100% satisfaction guarantee on all of our services. You can trust us to be on time, upfront pricing and friendly. In addition, Weatherwise Heating & Cooling offers same day service.

  • 24 Hour Emergency Heating Services
  • Furnaces
  • Air Handlers
  • Heat Pumps
  • Boilers
  • Ductless Systems
  • Water Heaters
  • Garage Heaters

Not only are we committed to providing you with unbeatable on-site heating services in Crystal Lake such as no trip charges and regular tune-ups to ensure HVAC system efficiency, but we also guarantee 24/7 year-round emergency assistance as well as discounts on replacement parts, repair labor, and new unit purchases.

Having issues with your furnace? Call WeatherWise Heating & Cooling to find out how we can help! For 24/7 emergency heating services, and HVAC services call (815) 477-7766 now.​

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