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

3 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
Avatar for Rardin Plumbing Heating & A/C
Rardin Plumbing Heating & A/C
4.6(
11
)
Boiler or Radiator Heating System - Install or ReplaceBoiler or Radiator Heating System - Install or Replace - For BusinessBoiler or Radiator Heating System - Repair or Service+47 more

Serving Warren, IL and surrounding areas

Free estimates

Emergency services offered

Credit card accepted

"Called Oscar 6-16-14.  Came out 6-17-14; accessed that the sewer pump had burned out; had brought a replacement with him.  He and his assistant replaced it within half an hour.  Charged $60 for service call and $30 for the half hour.  $410 for the pump.  Very genial and neat in their clean up.  Would recommend.
"
Recommended by100%of homeowners
Showing 1-10 of 46
Heating and Air Conditioning questions, answered by experts

Not if you have a standard unit. Because portable AC units actually work to dehumidify the room, you’ll likely need to drain the unit from time to time—but you won’t have to put water into it. There is, however, another type of air conditioner called a swamp cooler that requires water to operate. If you have a swamp cooler, you may need to fill a reservoir with water and potentially ice. But a swamp cooler is different from a standard portable AC unit.

It’s never a good idea to run your AC without a filter, even just for a night. The filter defends your HVAC system from the dust, dirt, debris, and other grime in your home. Without a filter, those contaminants are more likely to get inside your system and potentially damage it. 

Yes, ventless portable air conditioners exist, and not all standard portable air conditioners must be vented through a window.

Ventless portable units, often called evaporative coolers, do not have exhaust hoses. They use a water reservoir and a cooling pad to add moisture to the air, making it feel cooler. These units work best in dry climates because humid areas cannot absorb much additional moisture.

For standard portable air conditioners that do require venting, a window is not the only option; they can also be vented through a door, wall, or ceiling. However, it is essential to vent these units properly. Running a standard portable AC without venting it is counterproductive because it needs to expel heat to cool the room. Failing to do so will only increase the room's temperature.

On average, replacing an AC compressor costs between $800 and $2,300, but it could cost as much as $2,800. There are a few factors that impact the price of a compressor replacement, including the type and size of the compressor, as well as the type of HVAC system and local labor rates.

A new HVAC system can increase your home's value by about 5% to 7%, which can translate to an added value of $2,500 to $3,000. The return on investment (ROI) can be around 30%, especially if you upgrade the entire system, including ductwork and insulation. Adding modern features like a smart thermostat can further increase your home’s value by making the heating and cooling systems more efficient and convenient. However, since a new unit can cost $10,000 or more to install, it's important to weigh the upfront cost against the potential increase in home value. For a specific assessment, it's best to consult a local AC installer.

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.