Cary Heating and Cooling Services - WeatherWise

High-Quality HVAC in Cary, IL

In Crystal Lake & Surrounding Areas

Serving McHenry, Lake, Kane & Cook County!

Schedule Service or call us today 815-477-7766

Winter 2024

special promo

Special Carrier Furnace Promo

Up to $1,450

in Rebates

As one of the almost 20,000 residents of Cary, IL, we know how much you enjoy spending time outside. The sprawling parks, cafes, restaurants, and recreation offer hours of fun and entertainment. Still, you’ll spend more time indoors once the climate worsens. When you’re home, you don’t want to risk running a broken heater or air conditioner once temperatures reach their extremes.

WeatherWise Heating and Cooling wants to help you maintain a safe, regulated, comfortable home environment no matter the season. Sun, snow, rain, or wind chills, we’ll make sure your home has optimal heating and cooling all year.


We offer the following services for all residential and commercial heating and cooling systems. We are a family-owned and operated HVAC company providing a 100% satisfaction guarantee on all our services. You can trust us to be on time, have upfront pricing, and be friendly. We also offer WeatherWise Heating & Cooling same-day service if you need immediate repairs, maintenance, or replacement.


Choosing a new air conditioning unit may seem daunting, but WeatherWise Heating & Cooling ensures clean, refreshing cold air whenever you use the air conditioner. We’ll give you the peace of mind you deserve with our air conditioning service in Cary.

  • 24 Hour Emergency Repair Service
  • Air Conditioning Replacement
  • Thermostat Replacement or Repair
  • AC Tune-Up Service
  • Air Handlers Service
  • Refrigerant Replacement
  • Multi-zone Air Conditioning Systems
  • Humidifier Service
  • Dehumidifier Service

Ask about our professional duct cleaning services so your cooling system remains clean and functional. Our NATE-certified HVAC contractors have the tools, experience, and training to identify, fix, and resolve problems with your air ducts for air quality and performance. You’ll notice a considerable difference with your AC unit, saving you money with more energy efficiency.

An HVAC technician repairing an outside air conditioner.


Our heating repairs and routine maintenance inspections guarantee optimal heating even during the worst winter months. We handle everything from furnace repairs in Cary to new unit installations.

  • 24-Hour Emergency Heating Services
  • Heating Replacement
  • Furnace Repair
  • Heating Tune-Up Service
  • Heat Pumps
  • Boilers
  • Ductless Systems
  • Water Heaters
  • Garage Heaters

Not only are we committed to providing you with unbeatable on-site A/C and heating system 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.

Why Choose Us

Whether you require repair, replacement, or new unit installation or want to speak with one of our technicians to discuss issues with your current heating and cooling system, WeatherWise Heating and Cooling is here to help. With quality products and customer satisfaction at the forefront of our business, we treat you like our own family.

Our highly trained heating and air conditioning technicians are knowledgeable about AC systems, furnaces, heat pumps, boilers, indoor air quality, and everything in between. We also offer day and night 24-hour emergency assistance for unforeseen issues. That way, you can always trust WeatherWise for fast and reliable HVAC repairs in Cary.

Schedule Service Today!

Are you looking for a local and reliable Cary HVAC service company? Call WeatherWise Heating & Cooling at 815-477-7766 to schedule service. We’re here 24/7/365 to answer your questions, concerns, or emergency service calls. We also offer financing assistance with low payments based on approved credit.

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