Get matched with top heating and air conditioning pros in Boulder Hill, IL

"Excellent, timely, and knowledgeale service. I had them come to clean the air ducts, but they were able to comprehensively answer some other questions I had about my HVAC situation. I am going to use them from now on for my HVAC needs. Recommend!"

"Highly recommend. Found this company last year on Angie's List and this is the second time using them. I was in a pinch as the A/C went out and we have a little baby. I called and they got someone out the same day. Jeff was great...knowledgeable, friendly and answered a lot of questions! Got the unit working again! These are my go-to HVAC guys!"

"professional & courteous service. Explained what they were doing and how to improve my HVAC system"

Precision Today is a trusted multi-trade contractor with a expert technicians specializing in HVAC services for residential properties. We deliver fast, safe, and reliable solutions—backed by same-day service.\n\nOur HVAC services include heating and cooling system installation, furnace and AC repair, seasonal maintenance, ductwork services, thermostat upgrades, and energy-efficient system replacements. Whether you need a quick repair or a full system upgrade, our technicians work with precision and attention to detail to keep your home or business comfortable year-round.\n\nWith locations in Carol Stream, West Chicago, Grayslake, Palatine, Franklin Park, and Naperville, we provide efficient coverage across the surrounding Chicago suburbs—allowing us to respond quickly and keep your project moving.\n\nIf you’re looking for a responsive, professional contractor who prioritizes safety, speed, and quality, Precision Today is ready to help—often the same day you call.

"Brian was the sales person and thankfully he was the first person of four to bid on our job. He took the time to explain what we really needed, why we needed it as well as what we didn't need and why we didn't need it. His professionalism, knowledge and ability to explain HVAC to someone who is not familiar with it made all of the difference. None of the other three companies met the standard he set. The real icing on the cake was that the TR Miller bid was also the most affordable.
Ben and his team came to install the system today. They were on time. They were very accommodating. They worked quickly, efficiently, remarkably quietly and effectively. Ben took the time to explain how everything was installed and why it was installed the way it was. He also explained fully how the thermostat and humidifier work.
Our house, inside and out, is cleaner and neater than when they began their work.
We couldn't be happier. I will actively recommend their service to anyone."

"United HVAC installed new furnace and new central Air and most recently new hot water heater. That being said I trust the company and their technicians they do the job right. Communication and outstanding service from everyone. Extremely happy. Thank you United HVAC."

"Ish installed an air conditioner for me last summer and came back this week to do annual maintenance on it and my furnace. He worked to find an A.C. that fit my budget. He is very professional, friendly and knowledgeable. I did not feel pressured at all. He takes the time to explain what he is doing. He is careful not to damage walls, etc., and is a pleasure to work with. I highly recommend Ish to anyone looking for quality workmanship, a fair price, and pleasant and superior service. Thank you, Ish! See you next year!"

"AWE promptly responded to my work request and kept me informed about my appointment status. Peter came to perform the work. He was very thorough and even discovered that the HVAC contractor on our new home installed 2 furnaces: a current year model as well as a prior year model that was more prone to breakdowns. Provided great information and would definitely hire again. Thanks!"

Rest Assured HVAC is open Monday - Friday 8am-5pm (regardless of hours listed on Angi/HomeAdvisor). \n \nWe are 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. 24/7 Emergency Service available. \n \nRest Assured HVAC\nElgin, IL 60124\n(847) 224-2420\nhttps://RestAssuredHVAC.com

"Very efficient and clean, explained everything clearly, no issues at all. Will continue to use them for HVAC and plumbing needs!"