Top-rated heating and air conditioning pros.

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

Enter your zip and get matched with up to 5 pros

Need a pro for your heating and air conditioning service project in Warren, IL?

Select your specific project to find the pro for you.

Find Heating and air conditioning pros in Warren

Avatar for Leidy cleaning
Leidy cleaning
5.0(
2
)
Air Ducts & Vents - Clean

Serving Warren, IL and surrounding areas

Approved

Emergency services offered

Warranties offered

Small jobs welcome

"I would like to highly recommend Leidy’s cleaning company. Leidy did an excellent job cleaning my home. She was extremely careful with my furniture, household items, and every detail of the cleaning process. She is trustworthy, professional, and went above and beyond what we had originally agreed upon. I was very pleased with the results and would confidently recommend her services to anyone looking for a reliable and thorough cleaning company."
Cleaning house move out
Cleaning house move out
Cleaning house move out
Cleaning house move out
Cleaning house move out

+11

12 neighbors recently requested a quote
KC Cleaning Crew
New to Angi
Air Ducts & Vents - Clean

Serving Warren, IL and surrounding areas

Approved

Offers commercial services

At KC Cleaning Crew, we specialize in post construction cleaning and general cleaning that gets your space ready for the spotlight — whether it's a grand opening, new office launch, or a freshly renovated property. We know the final step before opening your doors is making sure everything is spotless, safe, and presentation-ready. That’s where we come in.\n\nAs a proud local business, we’re more than just a cleaning crew — we’re part of the community. We’re committed to supporting other local businesses by providing reliable, detailed cleaning services that help you shine from day one.\n\nFrom dust to debris, we handle the mess so you can focus. We work with you to ensure all your cleaning needs are met with quality and in a timely manner. \n\nClean space and Clean start\n

Three cousins cleaning
New to Angi
Air Ducts & Vents - Clean

Serving Warren, IL and surrounding areas

Approved

Three Cousins Cleaning is a family business run by three cousins who are also hardworking moms. We know firsthand how important it is to have a clean and healthy space for your family and your workplace.\n\nWe bring years of experience, strong work ethic, and attention to detail to every job. Our team is reliable, trustworthy, and flexible to fit your schedule. Whether it’s your home or your business, we clean with care and pride.\n\nWhen you choose Three Cousins Cleaning, you’re choosing family, honesty, and quality service.

Painting Plus
New to Angi
Air Ducts & Vents - Clean

Serving Warren, IL and surrounding areas

Approved

At Murals walls and signs we believe that a fresh coat of paint does more than transform a space—it brings new life, energy, and personality to every surface it touches. As a newly established painting company, we are committed to delivering high-quality craftsmanship, reliable service, and exceptional attention to detail on every project, no matter the size.\nOur team is built on a foundation of professionalism, integrity, and a passion for excellence. We take pride in using premium materials, modern techniques, and a customer-first approach to ensure every client’s vision becomes a reality. From residential homes to commercial properties, we aim to create results that not only meet expectations but exceed them.\nAt the core of our mission is a simple goal: to provide dependable, affordable, and beautiful painting solutions while building lasting relationships with our clients. As we grow, we remain dedicated to continuous improvement, innovation, and maintaining the highest

Avatar for Harker Heating & Cooling
Harker Heating & Cooling
4.6(
213
)
Air Ducts & Vents - CleanBoiler or Radiator Heating System - Install or ReplaceBoiler or Radiator Heating System - Install or Replace - For Business+50 more

Serving Warren, IL and surrounding areas

In business since 1949

Free estimates

Emergency services offered

"Harker Heating And Cooling is the best HVAC contractor we have ever worked with in 40 years. Their web site proudly says they are an “honest company with Midwestern values.” That is absolutely true. Their representative provided in-depth advice, answered our questions. and returned our messages. Their techs were knowledgeable, professional, careful, and friendly. They were on time, on call, and on budget. The service they provided for us over the years could not be better. So when the time finally came to replace our old furnace and A/C we selected them. Unfortunately, they encountered many unexpected problems installing our new equipment. Many more than they had anticipated for the job. But their representative pledged to address every one of them no matter how hard it was for them or how much of their time it took. And that is exactly what they did. No quibbling and no questions. They got the job done right. If you want an honest family contractor who stands behind what they do, and lives by those Midwestern values, then this is the company to hire. You will be glad you did. Doug and Margie King Mount Horeb, Wisconsin"
87 W. Beltline Hwy
Carrier Distinguished Dealer Logo
Star of Madison Award
Recommended by89%of homeowners
Showing 1-10 of 45
Heating and Air Conditioning questions, answered by experts

If left untreated, a frozen AC unit can lead to costly damage, especially to the compressor and evaporator coils. When ice forms on the evaporator coils, they become brittle and more susceptible to breaking. Plus, a freeze makes your AC system much less efficient, which means it's wasting energy and costing you more in your monthly energy bills.

Choosing a unit with higher BTUs can use more electricity if the BTUs are more than what’s necessary for your room size. However, choosing an AC with BTUs that match the size of your room or house, your unit will cool your space efficiently. On the flip side, choosing a system with not enough BTUs can cause the system to work harder to try to cool the space, leading to more electricity consumption and higher energy bills.

Signs that your air conditioner capacitor is bad or failing include a range of symptoms. The AC unit may not turn on at all, or it might struggle to start before shutting down randomly or in the middle of a cooling cycle. You might hear a humming or banging noise when it attempts to start, or the compressor might hum without the unit actually running. Other indicators include a smell or smoke coming from the unit, the blower circulating room-temperature air instead of cold air, and an unexpected increase in your energy bills.

If your AC runs constantly, it could be due to a number of things, including a faulty thermostat, incorrect temperature settings, or broken equipment. Alternatively, you might have an airflow problem (for example, blocked vents or leaky ductwork). Either way, an HVAC pro can identify the specific problem and fix it for you.

No, it’s not normal for AC vents to drip condensation. A sweating AC vent is a sign of something wrong and can lead to issues like air duct rust or mold growth. Your HVAC unit might not be working efficiently because of a dirty filter or clogged ducts. Alternatively, your ductwork might not have adequate insulation, which allows the cool air in the ducts to meet the humid air outside, causing condensation. 

The Warren, 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.