Our vintage furnace had served us well until we required an evaluation due to a foul odor. We had…read morequality and timely service by Donnie, Danny, and Logan, along with fantastic office customer service. Diagnosis results were for a new furnace. We were provided three excellent options and their high quality benefits. Our new furnace was installed today by Michael, Nico and Raphael. The swap out of old for new, teachings, and addressing questions were excellent and completed in four hours. Thank you as all of you are a fantastic group of professionals!

Barry S was very professional and worked quickly, he had all the tools and did a great job.read more

Stay away from these guys or at the very least get multiple quotes. I called trying to get an…read moreestimate to replace a boiler when it suddenly died and we had no hot water (and a small child). Talked to Jim and he was nice at first until he was supposed to come for the quote and something I said made him thinking I was getting the job quotted by more than one person. I wasn't getting multiple quotes, in fact I was having a hard time finding anyone who actually dealt with boilers. He specifically said he wasn't interested in coming to give a quote if others were involved and when I tried to tell there weren't any others he basically hung up on me. Called him back immediately 2x and left messages with 0 response. Completely unprofessional. If I was actually bidding the job out (which I wasn't) only someone with something to hide would be that concerned so be wary of any quote you get from these guys. Crazy shady and frankly glad we found someone else ‐‐------------------ Jim, in response to your reply you should check your messages again. Here's the text message I sent you after you hung up on me and after I called you back to try to explain and you refused to answer. Its clearly sent to the number you listed...

The best service ever. Jim is very responsive. We requested a quote on our broken water heater…read morepipes late at night. He replied around midnight & was willing to explain what needs to be done & the price range. Jim came to fix our pipes the next day, although it was late at night since he got stuck with another project. Jim was very friendly, caring and dedicated to having the job done right. We're so glad that we found Leipart heating & cooling. Will definitely use his company again for any heating & cooling needs.

Shawn was great! Installed a new furnace, humifier and thermostat. Finished on a Sunday and prices…read morewere very reasonable

Great Service and very professional, knows what they are doing and gets things done in a timely…read moremanner.

Travis is THE guy that you want when it comes to heating and cooling issues. He will not try and…read moresell you anything you don't need. Trustworthy and honest. Goes above and beyond. Just a really good guy! Ps: if your considering going into this business this is the guy you want as a mentor.

I needed a humidifier installed in new construction home. I'm extremely pleased with my experience…read more They explained things patiently and thoroughly. When they came for the install, they informed me that the original humidifier was not the best fit. Rather than installing it just to get the job done they paused. They recommended a different option that was actually a lower cost and that they would have to come a different time to install it. This shows their dedication to customer satisfaction and making sure the customer has the best product to address their needs. Highly recommend them.

Requested a HVAC and Furnace tune up through the yelp projects…read more Quick response and got us on the schedule. They came out today and the tech was great, checked everything out. Happy with the service and would recommend to other. We will be repeat customers in the future

Technicians came on time and explained every thing they were doing like I was a kid (which is what…read moreI want...I know nothing about HVACs). Technicians were extremely honest and didn't try to upsell. Even told me that if something were to happen, I can call them again and I wouldn't be charged another fee to come out. You've earned a lifelong customer. Thanks!

I called Lockwood Furnace Company and always so polite and helpful is Tricia the scheduler…read moreI cannot say enough about Matt service technician, Bob service manager, Andy installer, and Terrance assistant installer.These four gentlemen did a project at my home just recently. Each one of these gentlemen treated me and my wife with the utmost respect. All four gentlemen where so polite, caring, and professional with a sense of humor.Each one explained the job that they where doing with simplicity so one would understand. These men where all so honest and could have taken me for thousands. But being so honest it only cost me $1300.00. Plus they covered my steps and the room going to where the furnace was. Thus cleaning up the mess. I've been to other companies but Lockwood Furnace Company at 2300 McDonough St, Joliet, IL 60436, (815) 744-4004 has my business from now on. Plus Lockwood Furnace Company is quite affordable. I will tell you do not look any further because Lockwood Furnace Company will not let you down. I firmly believe that if you give Lockwood Furnace Company a try. This company is a keeper for me and can be for you.

Poor customer service ,made an appointment the end of June 2025 for July 3rd appointment was…read moreconfirmed by there office , that Bob would show up on July 3rd for an estimate for a new ac unit, Friday cam and went , No Bob , No Phone Call , No Text message. Here it's July 7 2026 , my doorbell rings and guess who's at my door Bob from Lockwood furnace . What kind of company is this that they show up unannounced. If this is how you represent this company Bob would be replaced . You lost a good customer and possibly a future customer, but let's all thank Bob

Great service and consistent quality. We used them for servicing our 20 yr old furnace/AC and…read morerecently upgraded to new, modern efficient units.

Always on time; fair pricing, friendly and excellent service. Tech Hugo did a great job cleaning…read moreand adjusting my system.