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

"The technician did a very good job cleaning the hvac ducts."

"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!"

"I found my go to guys for HVAC. Jeremy was great. Fast, efficient and explained everything. Reasonable prices and watch for their specials. I trust them."

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.

"HVAC scheduled tuneup performed as requested perfectly. On time and on budget. Left the areas clean and neat. Perfect! They’re the best."

"This was our first time needing an HVAC service for our house (AC unit issues) and Ish, Nick and Genaro did a fantastic job! I met with Ish first to diagnose the problem. He is super knowledgeable and was able to answer all my questions confidently and thoroughly. He was honest in explaining our options for our budget. He gave me estimates for multiple different scenarios I asked for and I never felt pushed into the more expensive option (and I am typically quite a skeptic when it comes to these types of things)! He also really took his time while at my house. I didnâ  t feel like I was rushed or that my questions were a bother to him. We decided to replace our whole unit and him and his team were able to come back just three days later! The install was smooth, they cleaned up all the work areas really well, and the whole team is very personable (and dog friendly, which I appreciate)! Overall, our experience was the best case scenario, and we will be using Ish and his team for all our future AC/Furnace maintenance!"

"Francisco and his team (Ralph) did absolutely great work. If you are reading this review, book them. Your search for an HVAC contractor can stop here. I am a new home owner and had a lot of questions about my home. I am an engineer and wanted to understand the exact details of the repair.. They took the time to answer all of my questions, I had a few HVAC contractors estimate the work and they were the only ones that did not try to upsell. They explained the work to be done before and during the job. Afterwards they gave recommendations about future work that I plan to do. I would absolutely do business with them again and you should too. Note: I have no relation to them at all. I did not know the two of them before this job. I would absolutely do business with them again should their services be needed. It was a pleasure learning from them and they did quality work repairing the original issue they were contracted for. Additionally, they went above and beyond the contract to fix several other issues that occurred / were found during the job. This is the team you want to hire for your HVAC needs. They were fast, did quality work, were on time, had solid communication, and were reasonably priced. Francisco / Ralph, if you you ever need a referral, let me know. Again, great work guys. 10/10"

"I needed the refrigerant in my HVAC system refilled and Juliano and Richard were quick to respond and very professional. They inspected the system and completed the job in one day. Very satisfied with work performed."

"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