Commercial HVAC Service in Des Plaines & the NW Suburbs

Alltech HVAC installs, repairs and maintains commercial heating and cooling equipment, including rooftop units, split and mini-split systems, exhaust fans and makeup air units, for businesses in Des Plaines and the northwest suburbs. We build custom maintenance agreements after assessing your equipment.

Professional Commercial HVAC Services From a Team You Can Trust

Commercial businesses face different challenges than homeowners when it comes to their heating and air conditioning needs. Employees and customers come and go frequently, which means more opening and closing of doors. Computers and machinery also put off more heat. In addition, many commercial properties have large, open indoor spaces to heat and cool, which can get expensive.

Fortunately, the experienced team at Alltech HVAC Inc can help you choose the most efficient HVAC system for your commercial business. We also provide maintenance and repairs for your commercial HVAC needs, helping you protect your investment and provide clean, healthy indoor air for your employees and customers.

We’re proud to be a local, family-owned and -operated business with an A+ rating with the Better Business Bureau. Our high ratings are a testament to our commitment to our customers!

What Can We Help You With?

Our team can help you with the following commercial HVAC services:

• New installation
• System repairs
• Complete system replacement
• Preventative & routine maintenance
• Emergency repairs

No matter what HVAC services you need, you can count on Alltech HVAC Inc to be there to assist you throughout the process.

Benefits of an Efficient Commercial HVAC System

A commercial HVAC system that works properly helps you maintain a comfortable space for your guests and clients with clean, comfortable air. Keeping your employees comfortable can also help them stay focused. An indoor space with a properly controlled temperature can also prevent machinery and equipment from overheating, helping to protect your investments.

Always Here to Serve You

Alltech HVAC Inc is here to serve all your commercial HVAC needs. Whether it’s time to replace your system or you need emergency repairs, you can count on us to be there. Call us at (866) 482-2007 to schedule an estimate today or use our contact form to reach us!

Recent Commercial Project: Hotel Restaurant Ductwork

Here are a few photos from a recent Alltech job: new exposed spiral ductwork in a hotel restaurant and dining space, finished in January 2026. Open ceilings leave every run on display, so the work has to look as good as it performs. Have a commercial space that needs new ductwork or HVAC equipment? Call us at (866) 482-2007.

Commercial HVAC FAQs

Do you work on both homes and businesses?

Yes. We provide residential and commercial HVAC installation, repair and maintenance, including rooftop units, split and mini-split systems, exhaust fans and makeup air units for commercial properties.

Do you offer commercial maintenance agreements?

Yes. We start with an assessment of your equipment and build a custom agreement around your building’s systems and needs.

What equipment brands do you service, repair and maintain?

We service all makes and models of equipment.

Do you offer emergency HVAC service?

Yes. We handle emergency heating and air conditioning repairs. We do not offer 24-hour emergency service to residential customers.

More answers: see our HVAC FAQ page or call (866) 482-2007.