$200 OFF Special price for Installation of a replacement Humidifier read more

Quality Heating & Cooling Wilmette, IL

When the homeowners of Wilmette and the surrounding areas need a reliable heating and cooling company to service their home HVAC systems, Deljo is the one they call. Deljo Heating & Cooling has been providing dependable temperature control services to generations of Chicagoland families and are here to deliver that same exceptional customer care to you. 

From installation and maintenance to repair and replacement, our team of dedicated HVAC specialists can handle all of your heating and cooling needs. 

Professional Heating Services

Midwest winters are known for being bitterly cold so it’s essential to have a fully functioning heating system to survive comfortably until springtime. Deljo Heating & Cooling offers the following heating services to Wilmette and the surrounding areas:

Heating Installations

Our highly skilled technicians can install a variety of different heating systems including:

  • Natural Gas Furnaces
  • Oil Furnaces
  • Propane Furnaces
  • Electric Furnaces
  • Boiler Systems
  • Ductless Systems

Heating System Maintenance

One of the best ways to extend the life of your HVAC system is by scheduling yearly maintenance to keep your heater in top condition. Our NATE-certified professionals can perform annual tune ups on all heating systems including:

  • Boilers
  • Propane Furnaces
  • Electric Furnaces
  • Natural Gas Furnaces
  • Oil Furnaces
  • Ductless Systems

Heating System Repair

The middle of winter is the worst time for your heating system to stop working. Luckily for the homeowners of Wilmette and the surrounding areas, Deljo’s team of HVAC experts are trained to repair any type of heating system from ductless systems to boilers. 

You don’t need to spend another minute in the cold just because you’re experiencing issues outside of business hours. Deljo Heating & Cooling offers 24/7 emergency repair services to get your system back up and running as quickly as possible. 

Expert Air Conditioning Services

Summertime temperatures in Chicago can go from comfortable to miserable in mere hours, so it is important to have an efficiently running cooling system in your home. Deljo Heating & Cooling offers an assortment of cooling services to provide relief during those sticky, humid afternoons including:

Cooling System Installations

Not all cooling units are created equal so you want to make sure you choose the right one for your home. Our trusted HVAC technicians can install several different cooling systems including:

  • Air Conditioners
  • Central Air Systems
  • Ductless Mini-Split Systems

Yearly Maintenance On Cooling Units

Just like with your heating system, having annual maintenance performed on your cooling system can prolong the life of your unit and save you money in the process. Our skilled team of air conditioning contractors can service any cooling system.

Rest assured that your home will stay comfortable all season long, no matter what type of unit you have. 

Air Conditioning Repairs

Minutes can feel like hours when your air conditioner stops working. Deljo Heating & Cooling will send one of our trusted AC repair specialists to repair your cooling system quickly and effectively. You and your family can enjoy the rest of the season comfortably thanks to the swift and reliable help of our Wilmette Air Conditioning technicians. 

We also offer 24 hours a day, 7 days a week emergency repair services to help you out when you need it the most. Rest assured that day or night, Deljo’s technicians are here to get your air conditioner back up and running ASAP. 

Dependable HVAC Services in Wilmette, Il

With temperatures plummeting during the winter, there’s no better time than the present to schedule your heating and air conditioning maintenance. Not only can yearly tune-ups increase the life of your unit and save money on your utility bills, but it can also detect small issues and prevent them from becoming expensive repairs in the future.

Instead of applying a simple, quick fix to your system, our HVAC contractors will thoroughly assess your AC system or heating equipment to ensure it’s clean, operating efficiently and worthwhile to repair. The upfront transparency of our service is what has made Deljo stand out for over 100 years.

The coastline of Lake Michigan is visible next to the city of Wilmette, Illinois.

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.

Questions? We Can Help! Contact Us Today!

Our Service Areas

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

Chicago Suburbs

Chicago Neighborhoods