About Us





About Efficient Heating & Cooling
Justin Synowiec has spent close to 15 years in the HVAC industry, from working on residential to commercial projects. He started Efficient Heating & Cooling because while working with some fantastic organizations, he saw an opportunity to improve the process and customer experience for the consumers.
As a truly family-run local business, Justin and his brother Chris started Efficient Heating & Cooling to serve McHenry, Lake and Cook Counties in Illinois for both residential and commercial HVAC needs. They then brought on a service manager (Matt) to help expedite the process and improve the quality of service for homeowners in the area. With our expertise, we can take care of all your HVAC needs. At Efficient Heating & Cooling, all of our service technicians are highly trained experts in energy efficient solutions. All of our employees are background checked and drug tested.
By improving the efficiency of your HVAC system, we can give you better heating and cooling results for less money.
We Specialize In:
- Residential heating, ventilation, and cooling
- Commercial heating, ventilation, and cooling
- Air quality testing and management
- AC installation, replacement, repairs, and maintenance
- Heating installation, replacement, repairs, and maintenance
- Heat pump installation, replacement, repairs, and maintenance
- And more


Why Trust Efficient Heating & Cooling
- FAMILY-OWNED COMPANY
- 100% SATISFACTION GUARANTEED
- QUALITY WORK AND EXCELLENT CUSTOMER SERVICE
- LOCALLY OWNED & OPERATED SMALL BUSINESS
- EMPHASIZE HONESTY AND INTEGRITY
- PROVIDE FLAT-RATE PRICING
More Details
Call Office Today: 815-347-8353
Call Cell Today: 847-204-1743
Email Today: justin@efficientheatingcooling.com
Accepted Payment Methods:

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 |