Heating & Furnace Contractors in Grayslake, IL

"They did a great job. We were very impressed. The quote was very reasonable. I would hire them again and will recommend them to my friends and family."

"There is no need to look any further than Dr. HVAC for your heating and cooling needs. After my experience with them, I will never call anyone else. I initially called Dr. HVAC when we started noticing some noise from our basement furnace. Steve (the owner) was able to come for an estimate the same day, and we had a new furnace within the week. During the estimate he looked at both upper and lower units and gave us his opinion on what the most pressing issues were, as well as future work we should plan to have done. He also helped troubleshoot a problem we had with a "cold" bedroom, saving us countless time and money for work that ultimately wasn't necessary. We ended up deciding to replace our basement furnace and hold off on the upstairs furnace since it still has some years left on it. On the day of the repair, Steve called ahead with an ETA and arrived on time. He walked my husband through the issues he saw with our old furnace, which was great because my husband wasn't home for the estimate. The removal and install was smooth. Steve stayed for awhile after the install was complete to ensure the unit was functioning properly. He noticed afterwards that our humidifier wasn't installed quite properly (previous owners must have had work done on it) and took extra time to check to see if it was functioning. There was also a plumbing issue with the pipe leading to the furnace drain that was related to work that had been done while the previous owners owned the house. Steve took a couple extra hours to obtain the supplies needed to fix the problem even though the heater was already installed. He went way above what we expected and saved us the cost of having to call a plumber. Dr. HVAC absolutely went above and beyond any expectations we had to not only provide exceptional service and product but also to give us peace of mind knowing that the work was done properly. You can tell he genuinely cares about the quality of work that he does. I have Dr. HVAC's number saved in my phone and look forward to working with them in the future for our seasonal AC/furnace checks."

"Very professional repairman. Highly-experienced in working with boilers. Was able to order the part and install it within a week. Checked all my radiators. Saw that I needed a shut off valve for the boiler, which will be done in the future. Very pleased with the entire job."

About us: "Every property is unique, and we recognize that a one-size-fits-all approach won't cut it. Optimized Air specializes in crafting personalized solutions tailored to your specific needs. Whether you need a new system installation, repairs, or maintenance, we'll take the time to assess your space and recommend the best-suited options to optimize your indoor comfort and energy efficiency. We are dedicated to providing our customers with the best quality and craftsmanship. We are here to build relationships with our customers and communities. We look forward to working with you!"

"Very responsive and offered options for financing. The Legendary Service Team has a thorough understanding of regulations and offers environmentally friendly suggestions for your HVAC needs. They did a furnace/AC replacement in my home. Their scehduling system texts you when they are in route to your home. The install went seamlessly. They kept all work areas covered and clean. I will use them for all future maintenance needs."

"My heating contractor, Gary was very friendly and helpful. He made a quick diagnosis of the problem and had my furnace fixed in no time. I’m so glad I called. I would definitely call G & R for all of my future HVAC needs.-"

"They respond very promptly. Evenly priced. Very personable and easy to talk to."

"Rick came to my home and gave us a proposal to remove and replace our old furnace and electric water heater. His cost was more than fair. Craig came early on the scheduled day. In no time he had the old equipment removed. The new equipment installations were all completed the same day. My experiance with C.R. Mechanical Services was better than expected. Rick and Craig were both friendly and professional through-out the whole project. I will highly recommend them for anyone in need of a HVAC contractor."

"Great service! I had them come out because I had no heat. They are very knowledgeable and had me up and going in no time. I signed up for regular maintenance service to keep my furnace and water heater in the good work order."

"Very professional, on time, reasonable prices. I would use them again in a minute, and have already recommended them to a friend."

"Gus was very easy to talk toand they did an excellent job getting my new furnace and air conditioning for house."

"Jose was prompt and efficient and did a lovely job. I needed the moldy, very old, hanging insulation removed and taken away. I have already told my neighbors about Jose. When he finished and left, downstairs was spotlessly clean. I highly recommend him. NOTE: I could not accurately list the work Jose did, so I put in foundation because I needed something. This website is flawed,because you can not list what you had done, except in the narrative, and I want people to know what an excellent job Jose did."

About us: "Phillip’s Heating and Air Conditioning, is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests and make their concerns the basis of our business."

"After a few years of using other heating and cooling businesses I found Keith, he was always on time and ready to work. We had a few issues with our boiler system that was getting up in age and he said he could fix it but it may only last a couple years so we decided to just replace it. Keith gave us a great quote and was again prompt and thorough on installing the new boiler. We were so happy with him that when we needed AC work he was the first one we called, which we ended up getting a new AC unit as well as it was old and could have been serviced over and over again but now the new ones are more efficient and almost pay for themselves. So when our water heater went out there was only one person to call, Keith was here as usual, quick and clean and no issues. Now we call and have both serviced regularly by him and no more problems and can rely on his work to keep us comfortable in our home. Call Keith if you donâ t want to worry about your homeâ s systems you wonâ t regret it."

About us: "Welcome to First Response HVAC, LLC! In business since 2023, we are a full service heating and cooling company who takes great pride in the quality of our work and guarantees customer satisfaction. We specialize in all service and maintenance for residential properties, and no job is too big or too small. Serving Wadsworth and its surrounding towns, be sure to give us a call today!"

"Very nice to work with and did a great job!"

About us: "We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business!"

"Amazing customer service! Explained everything in detail and took their time to clean, diagnose and fix our furnace. I would highly recommend them!!"

"I was happy with both the service and price. I will use this company again"

About us: "We take great pride in our experience, expertise, quality and customer service, that we provide to meet the consumers needs. It is our mission to provide excellent workmanship and complete customer satisfaction, from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate, with every customer in a professional manner. Our reputation is based on service, safety and quality, regardless of how large, or small the job!!"

About us: "We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship and complete customer satisfaction, from the start to the completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job."

"Keith gave us a great quote on replacement of our furnace, A/C, humidifier and water heater. Pointed out a few things that were overlooked by us and the other companies quoting. He and Jimmy came and did the install shortly thereafter in exactly the timeframe promised. All things being pretty equal as far as equipment costs go, it was the over all value that Premier Comfort offered, such as the service and labor warranties that really sold us. We're very happy with the Lennox equipment and the way it was installed. Will definitely recommend!"