Serving all of the DeKalb, IL and Fox Valley areas 24 Hour Emergency Service 1183 Pierson Dr Unit 107, Batavia, IL 60510 5.0 (32 Ratings & Reviews) 339 Wurlitzer Drive DeKalb, Illinois 60115 Contact Us HOME COMMERCIAL SERVICES RESIDENTIAL SERVICES DMe HEATING AND COOLING INDOOR AIR QUALITY SMART TECHNOLOGY ABOUT REVIEWS CONTACT Residential and Commercial HVAC Mechanical Contractors FREE Estimates on all New Installations | Family and Locally Owned Since 1991 | 24/7 Emergency Service Expert Repairs for Your Commercial Heating and Cooling Systems Since 1991, DeKalb Mechanical Inc. has been your trusted name in commercial heating and cooling, repairs and installations. We can repair all types of furnaces, air conditioners, rooftop systems, and geothermal heat pumps to keep your business comfortable. Call us today for a FREE estimate on new installations! We also offer 24/7 emergency services! Learn More Keep Your Home and Business Warm With Our Residential and Commercial Heating Services Don't get caught this winter with a broken or inefficient heating system for your home. Upgrade your furnace or get your current one repaired by calling us today. We carry the top name brands in the heating industry for you! Is your heater running as efficiently as it should? Save on your utility bills by calling us today for our professional HVAC repair and maintenance services! Learn More Stay Cool With Our Residential and Commercial Air Conditioning Repairs When it comes to your home or business air conditioning system, no one beats our HVAC experience or expertise. We repair and install air conditioning units of all sizes, including ductless AC systems and packaged systems. A well-maintained AC unit can save you money on your energy costs. Make sure your HVAC system is operating at peak efficiency by calling us today! Ask about our affordable planned service agreements! Learn More Customer Reviews Tony Working with DeKalb Mechanical was a pleasure. Coordinating a time for service was a breeze, the technician was knowledgeable, respectful and willing to share information so as to prevent further issues. I would 100% re... read more 5/4/2021 Roy S As Executive Director of the local Habitat for Humanity in DeKalb County, we are pleased to call DeKalb Mechanical our heating and air conditioning contractor. They have been a major contributor to our last fourteen builds ins... read more 3/3/2021 Read More Reviews High-efficiency products use less energy and can save you money. Rebates for energy efficiency upgrades are available to all current residential Nicor Gas customers.. The ComEd Smart Ideas Energy Efficiency Program Gives You One Billion Reasons to Be Green and Save Energy Our Facebook Feed Find Us Contact Us DeKalb Mechanical Inc. 339 Wurlitzer Dr DeKalb, IL 60115 Tel: 815-756-6528 Payment Methods Accepted Privacy Policy | Cookie Policy | Conditions of Use | Notice and Take Down Policy | Website Accessibility Policy © 2021 The content on this website is owned by us and our licensors. Do not copy any content (including images) without our consent.