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HVAC Evanston – Heating and Cooling Services in Evanston, IL


Although Evanstonians enjoy a milder climate than their neighbors to the west, the lake effect only helps so much. Thus, a functional HVAC system is still a necessity if you plan to endure the steamy summers and icy winters here with any degree of comfort. Thankfully, you can count on Deljo Heating & Cooling for all of your HVAC needs.

Call Deljo at 773-829-4295 for HVAC service, installs, repairs, and more!

With more than 100 years of experience, we’ve installed virtually every kind of heating system and know how to resolve any issue that may arise. And we’re equally experienced and knowledgeable when it comes to air conditioners. In fact, we’ve been installing and servicing AC units since they first hit the market!

Beyond our HVAC expertise, we understand how important it is to have an HVAC company you can trust. So we make a conscious effort to build that trust with every interaction we have with clients.

We want our clients to know that one call to Deljo is all it takes to solve any heating or cooling problem they may have. You probably have plenty of other things to worry about. Let us worry about your heating and cooling systems.

HVAC Repairs in Evanston, IL

When HVAC systems are working properly, you should hardly notice them. But when something goes wrong, it’s often the only thing you can notice. Thankfully, Deljo Heating & Cooling is always available to help with HVAC repairs at your Evanston, IL home or business.

We even offer emergency services 24 hours a day to ensure that our customers never have to suffer through a sleepless night because of a faulty HVAC system. Banks have business hours. We work when you need us.

Need help with heating repair in Evanston?

Although many issues with HVAC systems become immediately obvious, others call less attention to themselves but can be every bit as important to address. New smells and noises coming from your vents are the primary examples of less-than-obvious symptoms of an HVAC system in need of repairs.

Rotten egg smells can be a sign of a gas leak. The smell of dirty socks or stinky feet could be a sign of mold or mildew. A chemical smell could be a sign of a refrigerant leak. And in all of these cases, it’s important to address the issue as soon as possible.

So if you notice any of these smells or any other issues with your HVAC systems, give us a call so we can solve the problem before it causes any serious issues.

HVAC Installations in Evanston, IL


From central AC units to mini split heat pumps, Deljo Heating & Cooling is your one-stop shop for any HVAC installations you may need. We understand how large of an investment a new HVAC system can be and will work with you to find the best solution for your space and your budget.

Heating and cooling systems generally provide 15 – 20 years of service before they need to be replaced. However, units that have not been properly maintained may give out after just 10 years. Regardless of the age of your system, we always recommend that a technician inspect your existing unit to determine whether repairing it might be more prudent than a replacement.

But repairing an aging unit can come close to the cost of a new model. And the energy efficiency of new models offsets their cost by helping you save money on your utility bill each month. Still, we like to rule out repairs as a reasonable solution before jumping straight to a replacement.

That said, we always leave the choice of how to proceed up to our clients. And we’re more than happy to assist you with a new HVAC install for your Evanston, IL home or office. We just try our best to make you aware of all of your options so that you can make the best choice for your wants, needs, and means.

Maintenance & HVAC Service in Evanston, IL

Think of servicing your heating and air conditioning systems as changing the oil in your car. Both forms of maintenance allow the machines to run more efficiently and extend their lives. In fact, regular HVAC service typically extends the life of the system by 50 – 100%!

When you schedule HVAC service with Deljo, one of our professional technicians will come to your home or business to inspect every component of your heater or cooling system. We’ll lubricate each moving part, clear out blockages of dust and debris, and test everything from your thermostat to your fans to ensure they’re working properly.

These simple checkups are quick, painless, and the best way to catch problems with your systems before they have a chance to worsen. Plus, regular HVAC service keeps your system in peak condition, preventing your energy bills from slowly climbing over time.

Don’t let the seasons pass without servicing the HVAC system in your North Shore home. Call us today to schedule a quick appointment then rest easy knowing that your comfort for the coming months is as close to a sure thing as it can be.

Call Deljo Heating & Cooling at 773-829-4295 for all of your HVAC needs.

Client Testimonials

Read the opinions of our satisfied customers.

I always use Deljo. The entire staff is amazing from intake calls to install. They were fast, professional and gave us a fair price.

Monica OConnor Chicago IL.

Joe was great. We came home to a cold house on a Sunday night and he came out to diagnose the issue right away. Very knowledgeable, very friendly.

Kyle Sant Chicago IL.

We’ve been using Deljo for several years and have had a great experience with them. They’re prompt, reliable, and trustworthy. The technicians (David was the most recent) have been great.

Ari Telisman Chicago IL.

My hot water heater had some leaky pipes due to corroded unions. The repair took longer than I thought due to some unforeseen circumstances. Unfortunately after the repairs the water heater stopped working...

Maria Pradd Chicago IL.

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Our Service Areas

Contact Deljo Heating & Cooling today. We look forward to hearing from you and helping out with all your indoor comfort needs.

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