Furnace Maintenance in Crystal Lake, IL

Services In Crystal Lake & Surrounding Areas

Serving Algonquin, Cary, Crystal Lake, 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

Your heating system is the surest way to stay warm and comfortable during chilly weather. If your furnace breaks, don’t worry. WeatherWise Heating and Cooling is here to help with professional furnace maintenance in Crystal Lake, IL, and the surrounding areas.

What to Know About Furnace Tune-Ups & Maintenance

Regular HVAC maintenance visits are a must-have for keeping your furnace running smoothly all season. Most homeowners leave the heat on from September through April. They may feel the hot air in their home, but might not realize that constantly running the heater increases wear.

Reasons to Get Furnace Tune-Ups

There are many reasons to get a furnace clean and check in Crystal Lake, IL. Mainly, neglecting heat system maintenance causes:

  • A decline in the performance of your heating unit.

  • An increase in energy use.

  • An increase in your utility bills.

  • Additional HVAC repair costs down the road.

Without proper maintenance, you will have more issues in your furnace. Clogged air filters, broken pilot lights, and other damaged parts and components all lead to costly repairs and higher energy bills. Schedule a tune-up right away before these issues worsen.

Benefits of Regular Maintenance

On the other hand, regular furnace maintenance:

  • Improves air quality in your home or business

  • Improves the performance of your HVAC system

  • Extends the life of your unit

For this reason, we recommend routine HVAC maintenance checkups every six months. Call today for more information on how to keep your heating system running efficiently all season.

Furnace Maintenance and 100% Satisfaction Guarantee

Our certified technicians will complete a list of checks to ensure your furnace is running smoothly, and we guarantee it. Our furnace tune-up checklist includes:

  • Comprehensive adjustments

  • 100% Full Safety Inspection

  • Air filter inspection

  • Thermostat check

  • Air vent overview

  • Pilot evaluation

  • Gas evaluation

As a professional HVAC company, our goal is to provide the ultimate heating experience for our customers. We commit to unbeatable on-site heating services, like no trip charges and regular tune-ups. We also guarantee 24/7/365 emergency service and discounts on replacement parts, repair labor, and new unit purchases.

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 manufacturers to ensure quality heating systems at the best price. Our team of experts will provide several models to meet your needs.

Schedule HVAC Services at WeatherWise Heating & Cooling

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 services. Whenever you need professional HVAC services in Crystal Lake, trust WeatherWise to finish the job right! Call today to learn more about our maintenance programs, financing options, and special discounts!

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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
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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