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. 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-respected and well-recognized name in the mechanical contractor field, DeKalb Mechanical is also the area's largest residential heating and air conditioning contractor. Dedicated to fast response, affordable solutions and customer satisfaction, the company is proud of its professional staff of Service technicians who are on call 24 hours a day, 7 days a week for all of your commercial and residential heating and air conditioning needs. One of the more important benefits we have to offer to our customers is "Single Responsibility."

Whether you need fabricated metal fittings for your HVAC system or other specialized metal parts, you can count on DeKalb Mechanical Inc. for all your metal fabrication needs. We've been providing outstanding service to commercial customers since 1991. Our flat sheet steel can be cut, folded, bent, and welded into various pieces and designs of ducting and fittings for many purposes. Call us today to discuss your metal fabrication needs and get a FREE estimate on your project. Kingspan Insulation brings you a new cutting-edge premium performance HVAC system combining Kingspan KoolDuct panels, fabrication methods, coupling systems, a professional fabrication training program, and a complete line of accessories to produce pre-insulated rectangular HVAC ductwork system that can achieve SMACNA air-leakage Class 3 designation.

For all your residential air conditioning repair, maintenance, and installation services, you can always count on DMe Heating & Cooling. We are currently in a mandated time period for transitioning residential air conditioning systems to non-chlorine-based refrigerants. We can explain how this will affect your specific air conditioner system.

When it comes to air conditioning services for your commercial property, no one matches the experience and dedication to customer satisfaction that DeKalb Mechanical Inc. provides. We maintain, repair, and install the top brand names in the industry. No matter the size or application of your AC unit, we can get it working at top efficiency again.

For all your commercial heating repair and installation needs, DeKalb Mechanical Inc. has the experience, equipment, and expertise to help you keep your business warm and comfortable in the winter. We service and install the top brand name heating systems for both small and large business facilities. Typical furnace sizes range from 40,000 Btu to 1,40,000 Btu. Furnaces are rated by the Annual Fuel Utilization Efficiency (the higher the rating, the most cost-effective it is to operate). Furnaces of varying efficiencies have different operations and venting requirements.

DeKalb Mechanical Inc. diagnoses and services all types of commercial-grade refrigeration systems, all across the DeKalb, IL area. We also design refrigeration systems to your exact specifications for optimized use and efficiency for your business. Call us today to schedule a FREE estimate with our commercial refrigeration professionals.

What's new?

I am very bad about posting, so my wife may kill me for posting this instead of a fun family outing, but I have got to share. Check out this pedestal end table our shop guys made for me! We had a monster 50# fan sheave replaced on a job and I mentioned in passing how it would be cool to turn it in...

Posted on Mar 14, 2021  •  Facebook

Today is the big day. Happy 30th Anniversary Dekalb Mechanical!!!!

Posted on Mar 12, 2021  •  Facebook

March is off to a great start. Here is what one of our customers has to say about DeKalb Mechanical.

Posted on Mar 03, 2021  •  Facebook

Its giveaway time!!!!! Thank you for 30 great years in business. Drawing will be Friday February 26th.

Posted on Feb 23, 2021  •  Facebook

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