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TRUSTED BY BOULDER HILL, IL HOMEOWNERS

  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon783
    Verified heating and air conditioning services reviews

Top-Rated Heating and air conditioning pros in Boulder Hill - Updated Nov 2026

Avatar for Home Comfort Systems Inc
Home Comfort Systems Inc
4.9(
315
)
Central A/C - InstallGas Furnace / Forced Air Heating System - InstallBoiler or Radiator Heating System - Install or Replace+47 more

Serving Boulder Hill, IL and surrounding areas

Approved

In business since 1972

Free estimates

Emergency services offered

"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!"
Additional Photos
Response time8 hrs
Response rate100%
8 neighbors recently requested a quote
Avatar for Regional Plumbing Heating & Air
Regional Plumbing Heating & Air
5.0(
15
)
Central A/C - InstallGas Furnace / Forced Air Heating System - InstallCentral A/C - Service or Repair+47 more

Serving Boulder Hill, IL and surrounding areas

Approved

In business since 2001

Free estimates

Emergency services offered

We are family owned and operated. We service all brands, makes and models. From furnace and water heater repair and replacements, all the way to a leaking kitchen faucet or bathroom toilet. One call REALLY does it all. Faucets, toilets, sinks, drain rodding, water heaters, boilers, furnaces, air conditioners and humidifiers. New construction to radiant heat. You know you called the pros the first time. Licensed, bonded and insured, we offer easy approval and affordable financing as well!

17 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Best Rates Heating and Cooling
Best Rates Heating and Cooling
4.8(
144
)
Central A/C - InstallGas Furnace / Forced Air Heating System - InstallElectric Furnace / Forced Air Heating System - Install+2 more

Serving Boulder Hill, IL and surrounding areas

Approved

In business since 2017

Free estimates

Emergency services offered

"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!"
Project Photos
Response time10 hrs
21 neighbors recently requested a quote
Recommended by91%of homeowners
Avatar for United Heating and Air Conditioning, Inc.
United Heating and Air Conditioning, Inc.
4.4(
225
)
Central A/C - Service or RepairElectric Furnace / Forced Air Heating System - RepairGas Furnace / Forced Air Heating System - Repair+5 more

Serving Boulder Hill, IL and surrounding areas

Approved

Super Service Award Winner

In business since 2017

Free estimates

Emergency services offered

"Francisco of United Heating and Air Conditioning is the greatest, and I will hire him again happily and hope to have him service my system yearly going forward. He came today as promised and found that my thermostat only needed batteries, but my system was otherwise fine. He is very good and extremely honest and informative."
INSTALLATIONS
INSTALLATIONS
INSTALLATIONS
INSTALLATIONS
INSTALLATIONS

+25

Response time7 hrs
Response rate96%
3 neighbors recently requested a quote
Avatar for Rest Assured HVAC, LLC
Rest Assured HVAC, LLC
4.9(
16
)
Gas Furnace / Forced Air Heating System - InstallCentral A/C - InstallCentral A/C - Service or Repair+11 more

Serving Boulder Hill, IL and surrounding areas

Approved

In business since 2022

Free estimates

Emergency services offered

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

Amana Gas Furnace
Amana Heat Pump
Response time5 hrs
1 neighbors recently requested a quote
Recommended by50%of homeowners
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Showing 1-10 of 337
Heating and Air Conditioning FAQs, answered by experts

NATE (North American Technician Excellence) certification is not legally required for HVAC technicians in most areas, but hiring a professional with this certification is highly recommended. NATE-certified technicians demonstrated their expertise and proficiency in different types of HVAC systems, offering assurance of quality service. It's a voluntary certification, yet it indicates a commitment to professionalism and ongoing training. Choosing a NATE-certified technician often means you're working with someone who is up-to-date on industry standards and best practices, which can lead to better service, energy efficiency, and long-term cost savings.

Most AC repair technicians will take between two and six hours to carry out repairs, depending on the work needed and the accessibility of the unit. For example, recharging refrigerant lines should take one to two hours to service, while replacing a compressor, blower fan, or other major components can take five to eight hours. You can ask your AC repair technician how long they expect the job to take, but just in case, you should plan on being home and available for most of the day.

Yes. It's normal for the AC compressor to cycle on and off intermittently in dry mode as it maintains the desired humidity level. The compressor cycles to prevent over-dehumidification and to maintain a comfortable indoor environment. This cycling behavior ensures efficient operation and optimal humidity control, contributing to the overall effectiveness of the dry mode function in your AC system.

You can buy a new AC capacitor through most big-box home improvement stores, from an HVAC contractor, or from the manufacturer. Use the model number of your air conditioning unit to make sure you purchase the right part for your unit. Also, keep in mind that the cost of this type of part can vary significantly depending on who you purchase it from, so shop around to get the best price.

A window AC unit is not completely silent. You’ll hear the sound of air blowing, and if you put your ear right up next to the unit, you may hear a slight hiss or gurgle as the refrigerant flows through the system. That said, if your system is making a running water sound, a loud banging sound, a grinding sound, or physically vibrating, you may be facing an issue or malfunction with your AC unit.

The Boulder Hill, IL homeowners’ guide to heating and air conditioning services

From average costs to expert advice, get all the answers you need to get your job done.