Efficient Heating
& Cooling

Locally Owned Furnace Repair, Air Conditioning Repair, and HVAC Company
Serving McHenry, Lake, and Cook Counties!
Free Estimates
Services All Major Brands of AC and Furnaces


Fast, Friend, and Reliable Service
Family trade for over 30 years
Save On Utility Bills With Energy Saving Units
Warranties On New Unit Installations

Furnace Repair / Installation

A/C Repair / Installation

Indoor Air Quality

Smart Thermostats

(De)Humidifier Repairs

(DE)Humidifier Installation

Heating, Air Conditioning & Air Quality Services In Wauconda, McHenry, Lake, & Cook Counties, IL

When your comfort is at stake, you can’t afford to wait. For the most efficient HVAC contractor in the Chicagoland area, please reach out Efficient Heating & Cooling. We are an HVAC repair company working with all brands and carriers for your repair needs.

Want to find out more about the heating and air conditioning repair services we offer at Efficient Heating & Cooling? Give us a call today at 815-347-8353. Our knowledgeable HVAC contractors and friendly staff are standing by waiting to hear from you.

Why Trust Efficient Heating & Cooling

We Are The Most Efficient Heating & Air Conditioning Service in the Area

At Efficient Heating & Cooling, we don’t just provide residential and commercial heating and air conditioning repair services; we make people’s lives easier.

From furnace & boiler repair to air conditioning replacement, we are an HVAC repair company providing services that keep the air you breathe clean and keep your home or business at the perfect temperature. The technicians at our company are like EMTs for your HVAC, offering a full range of heating, cooling and other services 24 hours a day, seven days a week. If you are looking for reliable heating and cooling contractors in Wauconda, IL, give us a call today at 815-347-8353. Our knowledgeable and friendly staff is standing by waiting to hear from you.


10+ Years of Experience

We’ve been in the HVAC industry for over a decade. Our professional technicians will be in and out of your hair before you know it.

Free Estimates

Our experienced HVAC team will assess your needs and provide you with a fast, free quote within 24 hours.

Prompt and Thorough Service

We’re ready when you are. We do not pressure anyone! No matter how big or small your job is, we’ve got you covered with fast and thorough HVAC services.

All-Inclusive HVAC Services

Whether your HVAC systems need repaired, serviced, or replaced, our technicians will handle it all.

Extensively Trained Technicians - Efficient Heating & Cooling
Extensively Trained Technicians

Our technicians are extensively trained and continually being trained on the latest technology. Rest assured we won’t be coming to your home to practice.

100% Drug Free & Background Checked - Efficient Heating & Cooling
100% Drug Free & Background Checked

You can trust the person entering your home. All of our technicians are 100% drug free and background checked to ensure your highest safety.

Family Owned & Operated - Efficient Heating & Cooling
Family Owned & Operated

We are a family owned and operated company dedicated to helping our neighbors– You can expect only honest recommendations we’d advise for our own family.

If your house is too hot or too cold, we’re ready to help.

We service and repair all makes and models, and keep up with all the latest technology, ensuring viable solutions for every requirement and budget. Utilize our years of experience.


CALL FOR DETAILS - (815) 347-8353


CALL FOR DETAILS - (815) 347-8353


CALL FOR DETAILS - (815) 347-8353

*Our Efficiency Guarantee

We offer a 1 year guarantee for Heating or Cooling installation services for all of our customers in McHenry, Lake and Cook Counties. We stand behind our service and products and are here to free you from worries related to any Cooling & Heating Systems. This is our efficiency guarantee and we are ready to provide one of the best HVAC companies in the Chicagoland Area!

* 2-Year Residential Warranty – Residential, 1-Year Commercial Warranty (Non-Customer Error)


At Efficient Heating & Cooling we know that sometimes budgets can be broken by emergencies. We offer the opportunity to find a plan that fits your budget. With flexible financing options, you can invest in your house or respond to an unexpected heating or cooling need without breaking your budget!


Customer Reviews

"I highly recommend efficient heating and cooling!!!! Justin and his team are extremely professional, knowledgeable, and the customer service is amazing. Their response time is very quick and they are always on time. We have used them for a number of things including installation of a garage heater, installation of a new HVAC system, and AC maintenance. They do amazing work and we have loved every experience with them!"

How’d We Do?
Leave Us a Review.

We Service & Install Nearly ANY Product.

Brand Service - Efficient Heating & Cooling


More Details

Call Office Today: 815-347-8353
Call Cell Today: 847-204-1743
Email Today: justin@efficientheatingcooling.com

Accepted Payment Methods:

Payment Accepted
Business Hours:
Monday   8:00 AM  – 5:00 PM
Tuesday   8:00 AM  – 5:00 PM
Wednesday   8:00 AM  – 5:00 PM
Thursday   8:00 AM  – 5:00 PM
Friday   8:00 AM  – 5:00 PM