Deljo Heating & Cooling is a highly reliable and trusted service provider in Chicago. With a remarkable history of over a hundred years in the HVAC industry, they have been serving two generations of residents and business owners in Chicagoland with top-quality HVAC products and services. The longevity of Deljo Heating & Cooling is a testament to their commitment to keeping customers comfortable through extreme temperatures. Their team members are NATE-certified and licensed, ensuring their expertise and professionalism. Technicians undergo extensive training and education at a Mitsubishi Electric-approved training center, covering every aspect of service, from new product sales to ongoing customer care. By having NATE-certified technicians, Deljo Heating & Cooling assures you of high-quality heating and air conditioning repair, installation, maintenance, and dependable IAQ (Indoor Air Quality) services. They prioritize the year-round comfort of your home or business, providing reliable HVAC services that meet your needs. To make their services more accessible, Deljo Heating & Cooling offers finance options, allowing you to invest affordably in your HVAC system. Additionally, they understand that emergencies can happen anytime, which is why they offer 24/7 emergency HVAC repair service in Chicago, ensuring that assistance is available whenever you need it. When you choose Deljo Heating & Cooling, you can trust in their long-standing reputation for reliability and trustworthiness. With their extensive experience, certified technicians, and commitment to customer satisfaction, they are dedicated to providing the highest level of service for your HVAC needs.
Best HVAC Services in Chicago
Handpicked Top 3 HVAC Repair in Chicago, Illinois. All of our Heating & Air Conditioning Services actually face a rigorous 50-Point Inspection, which includes customer reviews, history, complaints, ratings, satisfaction, trust, cost and general excellence.
We have a strict “No Pay to Play” policy.
DELJO HEATING & COOLING REVIEWS
Joe spent an incredible amount of time and attention making sure he diagnosed my furnace's issue, with an excellent amount of thoroughness and kept me updated throughout the entire process. He was friendly, professional, knowledgeable, and honest. Jim was extremely helpful in working through my best options for the furnace replacement, and Juan and Dave were fantastic as installers, they not only took care to do their job excellently, but also alerted me to an unrelated plumbing issue and helped me fix it! All in all it took less than 48 hours to diagnose a broken furnace and replace it, right before the coldest week of the winter. Highly recommend!
What a wonderful experience! I had been recommended Deljo by a friend - and I am so glad I called them! Jesus and Elliot (the team from Deljo) were fantastic to work with. They were efficient, professional, thorough and really cared about the service they were providing. 5 stars! Highly Recommend!
Carlos M and Anthony did an incredible job installing our new furnace. We were very pleased with their arriving on time and on one of the coldest day yet of the year with snowy roads. They were knowledgeable, friendly, careful and responded to questions. It was a tight space that they kept free of damage. I would highly recommend Deljo Heating & Cooling!
Help others: Click Here to send review or send us your review to reviews@threebestrated.com. Negative and positive review will be used for rating. Make a difference.

All Temp Heating & Air Conditioning is a reputable and professional heating and air conditioning service provider based in Chicago. As a family-owned business established in 1938, they have a long-standing presence in the industry. They are proud to be one of the leading Bryant dealerships in the entire country, showcasing their commitment to excellence. Throughout the years, All Temp Heating & Air Conditioning has maintained a solid reputation for ethical business practices, fair pricing, and delivering the highest level of expertise to their customers. Their licensed team specializes in the installation, maintenance, and repair of heating and cooling systems, ensuring that your home or business remains comfortable throughout the year. All Temp Heating & Air Conditioning technicians are NATE-certified, demonstrating their core and specialty knowledge through industry-recognized exams. They undergo thorough background checks and drug screenings, guaranteeing that you receive services from a reliable and trustworthy team. Their technicians are prompt, professionally dressed, and equipped with all the necessary tools and parts to efficiently complete a wide range of service work. All Temp Heating & Air Conditioning offers free in-home estimates, allowing you to assess your HVAC needs without any financial obligations. Additionally, they provide 24-hour emergency service, ensuring that help is available when you need it the most. With their long-standing experience, commitment to professionalism, and dedication to customer satisfaction, All Temp Heating & Air Conditioning is a reliable choice for all your heating and air conditioning needs.
Specialty:
Serving Locations:
Albany Park, Andersonville, Depaul, Edgewater, Horner Park, Irving Park, Lakeview, Lincoln Park, Lincoln Square, North Center/St. Ben’s, North Park/Budlong Woods, Old Town, Ravenswood, Rogers Park, Roscoe Village, Uptown/Buena Park, West Ridge/Warren Park, Wrigleyville & Surrounding Areas
Discount:
View Coupon
Contact:
Working Hours:
TBR® Inspection Report:
ALL TEMP HEATING & AIR CONDITIONING REVIEWS
I had a great experience with this business. They came out to service my furnace and the tech Josh T. was very nice and knowledgeable, he showed up perfectly on time and was very respectful of our house. He was very personable and professional as he explained everything he was doing, how it should work, ways to maintain the furnace and even fixed a repetitive whining noise that had been a concern and a nuisance for a while. He labeled everything in the area for easy future maintenance and did a thorough job of making sure everything was in perfect working condition before he left.
All Temp installed and serviced my furnace and AC. My furnace is 20 years old so they are the first ones I called for a cleaning and quote on a replacement. I had Marvin come out and clean and inspect the unit and it is working great! He knows his way around the system, was very thorough and explained everything. He wrote up a quote on a new furnace and AC and explained my options. Marvin is very nice to work with and confident and I will definitely consider All Temp for my furnace replacement.
We purchased our home last October, with no central air. We were doing fine for a while, but come the first hot week in spring we knew we needed to make a change, the windows units just weren't cutting it. We reached out to the team at All Temp about having central air installed on our existing forced air system, and we were treated professionally right from the start. All the way from the first call, to final touches, the install team was friendly, and worked quickly. At the end of it all, we have a home that is comfortable, and I know that the service was professionally done. Thank you All Temp!
Help others: Click Here to send review or send us your review to reviews@threebestrated.com. Negative and positive review will be used for rating. Make a difference.

Shavitz Heating and Air Conditioning stand out as one of the premier HVAC service companies in Chicago. Their team of skilled technicians undergoes over 70 hours of annual training, ensuring they are well-versed in working with the latest brands and models in the industry. Not only are their technicians highly trained, but they are also friendly and approachable. The company takes pride in providing a 100% satisfaction guarantee and a lifetime workmanship warranty on all of their work. They understand the importance of comprehensive heating maintenance for all types of systems and offer reliable and thorough services to ensure optimal performance. Shavitz Heating and Air Conditioning values its customers in the Chicago area and treats them like family. Their ultimate goal is to ensure your comfort in your home, which is why they go above and beyond. If needed, their technicians can even provide a portable heater or air conditioning system to keep you comfortable while the necessary repairs or installations are being completed. When it comes to pricing, Shavitz Heating, and Air Conditioning offers free estimates and provides information on Nicor, Peoples Gas, and North Shore Gas rebates to help you save. They also offer flexible financing options, making their services more accessible to customers. With a focus on quality repair, installation, and other heating and cooling services, Shavitz Heating and Air Conditioning is dedicated to meeting the needs of their customers in Chicago.
Specialty:
Serving Locations:
Buffalo Grove, Chicago, Deerfield, Des Plaines, Evanston, Glencoe, Glenview, Golf Highland Park, Highwood, Kenilworth, Lincolnwood, Morton Grove, Niles, Norridge, Northbrook, Northfield, Park Ridge, River Grove, Techny, Wilmette & Winnetka
Discount:
View Coupon
Contact:
Working Hours:
TBR® Inspection Report:
SHAVITZ HEATING AND AIR CONDITIONING REVIEWS
Since Shavitz installed my A/C and furnace, they have done all the maintenance, twice yearly. Excellent service, and knowledge technicians have kept everything in excellent condition. Damarius was here again today for my semi-annual “checkup”. He answered all my questions and reminded me how and when to do what I need to do to keep things running smoothly. I really appreciate his help! Thanks, Shavitz! PS. Thank you to Hope also, for her help. It’s so much easier talking with a real person!!
Eros came to repair our air conditioning (same day service, very hot day,) and quickly diagnosed the suspected issue. He educated us very well about what we would need to get it up and running again, and helped us maximize our maintenance agreement in order to save money on items we needed.. Shavitz hires super smart people, and we were again impressed with the quality of this company’s service and trchjicians. Five stars for Eros, going above and beyond to be great.
The serviceman showed up at the scheduled time, introduced himself, did the system check, answered my questions, and was on his way. Very courteous and professional. I think Shavitz is the best in the business which is why I have been a long-time customer!
Help others: Click Here to send review or send us your review to reviews@threebestrated.com. Negative and positive review will be used for rating. Make a difference.