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

Customer Reviews

Francis Alenghat
Francis Alenghat
2024.01.25.
Aaron was great and thorough.
Paula Jessen
Paula Jessen
2024.01.24.
We had our 20 year old boiler replaced by Juan and Nesley today. They were both super nice, polite, and professional. They walked us through everything they did and how to use our heating system efficiently. Highly recommend!
Ann Tesi
Ann Tesi
2024.01.24.
Charlie was very courteous, knowledgeable, and efficient! We always have a great customer experience with Deljo.
Dan DiMeo
Dan DiMeo
2024.01.23.
We had a technician (David C) come out to service our furnace and he was super helpful - made sure we understood all the work & gave us tips to avoid issues in the future. Shout out to David for great service!
Christopher Burzynski
Christopher Burzynski
2024.01.22.
Wesley, Andy, and Victor did a great job installing my new furnace. They worked in a tight space and it definitely wasn’t an easy job. When there was an issue with my thermostat compatibility Bill sent the team back out to resolve in a timely manner. They come in Spring to finish hooking up the AC. Overall very pleased with the work and the service!
Cee Jars
Cee Jars
2024.01.21.
David C. from DELJO was my angel on one of the coldest days of 2024 with a windchill -20 and the boiler not turning on. I called 9 heating companies and no one ever called back. David answered with 15 minutes and came for an emergency call at 10pm on a Sunday night. All my heating emergencies in the past also happen at times this late on a weekend! I was impressed with his professionalism, honesty, thoroughness, and HIM. I've had many heating places comes in the past several decades and I'd never want to bring any of them back! I tell everyone my story about how David C was my savior on that freezing winter night without heat. Great way to run a business DELJO. Keep up the good work!
Benjamin Cohen
Benjamin Cohen
2024.01.21.
Matthew did a great job for us, highly recommend.
Nancy Gardner
Nancy Gardner
2024.01.20.
Trevor was prompt, thorough and knowledgeable. I will request him for the spring check up
Jeffrey
Jeffrey
2024.01.20.
Awesome that customer service like this still exists these days.

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

This or That?

With the purchase of a full system, choose from:

This : Free Tanked Natural Draft Water Heater

OR

That: Up to a $3,000 discount

Monthly payments as low at $89/Month

Must qualify for financing through Service Finance Company

All other discounts and promotions may not be applied to this offer. All installations must be completed by April 14, 2024 to qualify.

Promotion can be redeemed only after moving forward with proposal or equipment replacement. Can be scheduled via email, phone, or website.