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Deljo Heating, Cooling & Plumbing

Featured in Chicago Today 4.90 (3,233 reviews)(773) 657-9989

Deljo Heating, Cooling & Plumbing

Deljo Heating, Cooling & Plumbing provides HVAC and plumbing services in Chicago. Its HVAC tradition began in Chicago in 1922.

Business Highlights
  • Deljo is a Mitsubishi Diamond Dealer.

Service Area

Chicago; Arlington Heights, Deerfield, Des Plaines, Elmwood Park, Evanston, Glencoe, Glenview, Harwood Heights, Highland Park, Kenilworth, Lake Forest, Lincolnwood, Morton Grove, Mount Prospect, Niles, Naperville, Northbrook, Northfield, Oak Park, Park Ridge, River Forest, Skokie, Wilmette, Winnetka, Bolingbrook, Warrenville, Lisle; Albany Park, Avondale, Belmont Cragin, Bucktown, Edgebrook, Edgewater, Edison Park, Forest Glen, Fulton Market, Gold Coast, Goose Island, Hermosa, Humboldt Park, Hyde Park, Irving Park, Jefferson Park, Lakeview, Lincoln Park, Lincoln Square, Logan Square, Noble Square, North Park, Old Irving, Old Town, Portage Park, Ravenswood, Rosemont, River North, Roscoe Village, Sauganash, South Loop, Uptown, West Loop, West Town, Wicker Park, Wrigleyville, Streeterville, Boystown.

Featured Local Business

Deljo Heating, Cooling & Plumbing is one of 13 HVAC companies ProsGrade lists in Chicago, Illinois.

Featured
Featured on ProsGrade
Listing details

7 services listed, including Heating, Cooling and Plumbing. Open 24 hours, 7 days a week. Rated 4.9 from 3,233 reviews.

  • Verified listing details
  • Service information
  • Customer review signals
  • Photo gallery
  • Public contact information
  • Published local profile

How This Business Compares

How Deljo Heating, Cooling & Plumbing compares with the other 12 HVAC companies on ProsGrade in Chicago, using public Google ratings and review counts.

  • Ranks in the top 10% of Chicago HVAC companies on ProsGrade by Google rating and review volume.
  • Has more Google reviews (3,233) than 11 of the 12 other Chicago HVAC companies on ProsGrade.
  • One of 13 Chicago HVAC companies on ProsGrade rated 4.7 or higher from at least 10 reviews.

Services Covered

7 services
  • Heatingfurnace and boiler repair, maintenance and installation
  • CoolingAC repair and tune-ups; air-conditioning maintenance and installation; ductless air conditioning
  • Plumbingdrain cleaning; water heaters; pipe repair; sump pumps
  • Indoor air qualitywhole-home humidifiers and dehumidifiers; air purifiers
  • HVAC maintenanceGold Star Program; inspections of air conditioners, heaters and humidifiers
  • Emergency HVAC repairemergency heating and AC repair, 24 hours a day, 7 days a week
  • HVAC productsCarrier HVAC products; Ecobee smart thermostat; REME HALO® whole-home in-duct purifier

Reviews

What customers say

Recent customers praise professional, communicative service and clear explanations of the work. One customer says a damper stuck the day after a new system was installed, and Deljo sent a member of the installation crew to fix it within a few hours.

Customer Reviews

Taylor Braun

Deljo was professional, communicative, and a pleasure to work with from start to finish. I needed my entire HVAC system replaced, and from the moment I booked my appointment the team kept me up to date on their status and ETA. I chose Deljo over another company which was similarly priced simply because of the excellent service I received. My tech, Matthew, took the time to walk me through what was important to me in a new system, how it would work, and kept me informed. When the install team came out they were efficient, communicative, and professional throughout. Could not recommend Deljo enough and I will continue to use them for regular maintenance in the future
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Denbo Montgomery

We purchased a new condo and needed some repair and upgrade work on our HVAC unit. Izzy was extremely professional and helpful and I could not be more pleased. I strongly recommend Deljo heating and cooling and particularly enjoyed the service I received from Izzy.
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Tristan Harter

So appreciated everyone's work on this. Luis & Anthony on the install for my furnace, John for the estimate, Drew for a maintenance call, and I am so sorry that I forgot the name of the first person I worked with but they were awesome as well. I had two service calls on my 28 year old furnace in two weeks, got an estimate for a new unit, and then my old one stopped working on the coldest day of the year. We were able to schedule install within days. Everything went really smoothly. I also really appreciate your being able to give small time windows and hit them easily. I just changed plumbing services to Deljo as a result. Hoping I don't have to do a ton of business with you in the future, but if I do, I trust it will be great.
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Andy Bodine

Plumbing and HVAC issues are always a massive headache, especially if you're not familiar with maintaining or repairing those parts of your home on your own. I had both HVAC and plumbing work done by Deljo and can highly recommend them for either need. Some things that impressed me: 1) Rather than just telling me that my furnace's heat exchanger was cracked, the HVAC tech used a scope camera to show me the extent of the problem. Less reputable companies wouldn't do that. It was good to know that there was an actual issue rather than just someone trying to sell me a new furnace 2) Deljo were able to send out a salesperson to help select a new, efficient system that could replace the old, failing, 20-year-old system. They were even able to dispatch an installation crew the following business day, which was a godsend given the frigid temps Chicago was experiencing at the time 3) Although the new system initially worked well, an issue arose the next day due to a dampener getting stuck shut. Deljo sent out one of the crew that had installed the system to fix the issue within a few hours 4) For the plumbing work, Deljo offered an affordable full-home report and provided individual quotes for each bit of recommended work. This allowed me to select the most pressing issues that I wasn't comfortable handling myself 5) When the plumbers came out to do the work, they patiently answered my questions and had me test out the new sump pump and shower cartridge they installed. They even moved the condensate drainage plumbing from the new furnace over to the new sump pump at no charge (it had been improperly draining into an ejector pit previously) Altogether, this customer-first approach was incredibly reassuring. Additionally, their prices are comparable to other HVAC and plumbing companies in the area, so you get a little extra bang for your buck. I'll be happy to be a repeat customer down the line when something else inevitably goes wrong with my house
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Jason Richter

Gregory was extremely helpful. He took the time to find the issue. We had two other companies come in and look at our furnace and they both told us everything was working fine. Gregory found our issue, showed and explained to us what was happening and clearly explained what was needed to fix it. He was very polite and knowledgeable. Excellent service.
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Frequently Asked Questions

Does Deljo offer HVAC financing?

Deljo can help customers find HVAC financing through Service Finance Company, LLC; financing is subject to approved credit.

How often does Deljo recommend heating and cooling checks?

Deljo recommends annual checks of both heating and cooling systems.

What does Deljo check on a Gold Star heating visit?

The Gold Star heating checklist includes checking heat exchangers for cracks or deterioration and testing safety controls.