Furnace Replacement & Installation in Crystal Lake & Surrounding Areas

Serving Algonquin, Cary, Crystal Lake, Huntley, Lake In The Hills, McHenry and the greater areas, stay cool all summer long!

$250 OFF


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

Trusted Furnace Installation & Replacement in Northwest Suburbs.

Is your furnace letting you down? Heat Costs Rising? You may benefit from a professional furnace installation and replacement.

At WeatherWise Heating and Cooling we will help you make the best decision when it comes to repairing your current heating system or replacing it for a new, often more energy efficient and cost-effective one. Our knowledgeable HVAC technicians will work with you to provide solutions that won’t compromise your comfort nor your safety. If money is your main concern, we offer convenient ways to pay via special financing options, plus all of our HVAC equipment and labor comes with full warranties. If you find yourself in need of a new furnace system, our expert technicians will work with you via a free in-home consultation. 

Check out our 4.9 star Google review ratings from past customers who have had new installed and replaced furnace systems with us. We work with the best manufactures to ensure quality heating systems at the best price. Our team of experts will provide several models to meet your needs.

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

Below are several signs that it may be time to replace your furnace. It’s important to give us a call to properly diagnois the current issues of the heating system to decide if replacement or repair is the best option.
  • Flickering pilot light
  • Your system is over 15 years old
  • Rust collecting around the pilot light, also known as Scale
  • Increased Energy Bills
  • Physical damage to the heating unit
  • Frequent repairs to the unit

Furnace Replacement Services

We offer the following services for all residential and commercial ac services. 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.
  • Heating system with gas furnace
  • Heating system with propane furnace
  • Heating system with electric air handler
  • Heating system with air pump

Not only are we committed to providing you with unbeatable on-site heating services 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.​

Have a question? Call 815.477.7766 or fill out the form to schedule your free estimate.



Satisfaction Guarantee

24/7 Emergency Service

Locally Owned

Competitive Pricing

Trained Technicians

Certified & Insured

Close Menu


As people and companies all across the country take additional preparations to protect against the Coronavirus (COVID-19), we acknowledge that your Heating, Cooling problems will likely not be taking a break. 

At this time, we will remain open full-time and will continue to service our customers with the same fast response times you’ve come to expect from us.

Due to the increasing number of reported cases in the U.S., we are continuously monitoring the situation. We will also continue to actively assess the necessary actions we need to take in order to ensure the health and safety of our customers, employees, and their families. We hope that you will join us in taking some basic but important measures, such as frequent hand washing, to keep communal risk low.