Deljo Heating

Regular maintenance prevents breakdowns and extends equipment lifespan. Our technicians perform comprehensive inspections, cleaning, and efficiency checks for heating and cooling systems. Customers benefit from discounted diagnostics, 15% repair discounts, and priority scheduling through our Goldstar Maintenance Agreement.

Emergency and scheduled furnace repairs for all makes and models. Our certified technicians diagnose issues quickly, using genuine replacement parts to restore heating efficiency. Service includes system testing and performance optimization to ensure winter reliability.

Professional boiler replacement with energy-efficient models. We handle complete system installation including piping, controls, and safety checks. New installations come with manufacturer warranties and our guarantee of proper system sizing for optimal home comfort.

24/7 AC repair for cooling system failures. Our technicians address refrigerant leaks, compressor issues, and electrical problems. Emergency service prioritizes rapid restoration of cooling during summer months with transparent pricing for all repairs.

Comprehensive plumbing solutions including water heater repair, drain cleaning, and pipe leak detection. Our licensed plumbers handle emergency flood control and routine maintenance to prevent costly water damage in residential properties.

We provide furnace/boiler repairs, AC maintenance, ductless systems, plumbing services, and 24/7 emergency support across Chicago suburbs and neighborhoods.

Yes, our 24/7 emergency service responds promptly to heating/cooling crises with technicians available at all hours.

We offer flexible financing plans and special offers like $5,000 discounts on qualifying HVAC systems to make home comfort affordable.

All technicians receive Mitsubishi Electric-approved training, with ongoing education to maintain our Diamond Dealer status and technical expertise.

Call 773-829-4295 anytime or use our online scheduling system for routine maintenance and emergency repair appointments.

June 23, 2022 central AC service call; This is the 3rd year that we have had our condo unit serviced by Deljo. 1. Pre-appointment communication = excellent 2. Service Tech competence = very good 3. Fixed cost for a basic AC maintenance call ($137) = reasonable 4. Cost for refrigerant recharge, dye/sealer and labor ($1,140) = predatory! The refrigerant was $243 and the dye/sealer kit $524. The exact same dye/sealant kit can be purchased for $50.

I emailed my dissatisfaction only to receive a reply admitting that their charges are, in fact, high. This is mainly due to the quality of their work and the overhead they need to account for. BEWARE $$$ before hiring this Vendor!

Overall a great experience from Mike coming out to give us quotes to the removal of our old HVAC systems and installation of the two new ones by Robin and DJ and their team. They were all very friendly, detail oriented and clean. We did have an issue where we called them shortly after install because we felt that one of the AC units was not performing as good as we would expect a brand new one to perform.

We called them and they were able to send out someone that same day to check. They discovered that it was a problem with the condenser and they sent out a team the following morning to replace it with no additional charges. It works great now and it was fantastic customer service. We would definitely use Deljo again.

Deljo replaced our 22 year old air conditioning unit yesterday- I highly recommend them. Our old system was having difficulty adequately cooling on hot days. We also had a long standing problem of very inadequate air distribution in our bedroom and in the home office. The entire team was very professional and knowledgeable and they did a great job. Brandon was extremely helpful in our initial consultation; and in reviewing our options.

The team that did the install (Marek and Kevin) were great- They were extremely helpful and knowledgeable-Marek and Kevin were also extremely polite, respectful, and clean. They reviewed in detail the problems with our previous install- and reviewed the significant work they did to replace the system and repair and readjust the duct work. The result was a night and day improvement- and we finally have cool air equally distributed through out the house. Hooray!

We had a great experience with Deljo. Last summer, they came out and repaired our aging AC unit, and got us through the end of summer. We met with Michael C in the spring and he helped us find a new unit that fit our needs. He was very kind and answered all our questions well. When we had the new Carrier installed, David R did a great job too. He was even careful enough that my plants survived the installation too : Deljo even sent us a box of cookies as a thank you, which is a nice touch. We appreciate the solid service from everyone we've worked with from Deljo and would certainly call on them again for any future needs.

Deljo installed new HVAC system in our condo after we decided not to pour more $$$ in our old unit. We went with them because they had been super reliable and professional during previous service visits and it was the right choice. From sales to installation it was beyond professional. The team that did the installation was top notch and the process was super smooth. When they left it was like they had never been there. Highly recommended.