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Top-Rated Air conditioning pros in Walnut - Updated Nov 2026

North South Heating and Cooling
New to Angi
Central A/C - InstallCentral A/C - Install - For BusinessCentral A/C - Service or Repair+1 more

Serving Walnut, IL and surrounding areas

Approved

Free estimates

Small jobs welcome

Credit card accepted

We are a locally owned and operated company that values honesty and integrity and treats your home as if it were our own. We offer a variety of General Contractor services that are customizable to each individual project. You will find us to be competitively priced, paying close attention to the details of each and every project that we are involved with. We look forward to building lasting relationships and guarantee your satisfaction!\n

5 neighbors recently requested a quote
GGs Deep cleaning services
New to Angi
Air Ducts & Vents - Clean

Serving Walnut, IL and surrounding areas

Approved

Professional Cleaning & Property Maintenance Services\n\nI take pride in providing reliable, quality cleaning and property maintenance services. I focus on keeping homes and outdoor spaces clean, neat, and well-maintained. I believe in hard work, attention to detail, and treating every property with care and respect. My goal is to provide excellent service, communicate clearly with customers, and make sure every job is completed to the customer's satisfaction.

Avatar for Rardin Plumbing Heating & A/C
Rardin Plumbing Heating & A/C
4.6(
11
)
Central A/C - InstallCentral A/C - Install - For BusinessCentral A/C - Service or Repair+3 more

Serving Walnut, IL and surrounding areas

Free estimates

Emergency services offered

Credit card accepted

"Excellent service.  Oscar and his crew go far and above what is necessary to fix or replace plumbing.  They are very conscientious, courteous and respectful.  They are also very considerate of your property, taking measures to insure that floors are kept clean and all debris is removed when they leave.  I will hire Rardin Plumbing and Heating again, and I highly recommend them.
"
Recommended by100%of homeowners
Avatar for Sears Heating and Cooling - Chicago South
Sears Heating and Cooling - Chicago South
3.8(
28
)
Central A/C - InstallDuctless Mini-split A/C - Install or Replace

Serving Walnut, IL and surrounding areas

In business since 1893

Free estimates

Warranties offered

"First men that came were HEAVY on the sales. Seemed like used car sales. And low on the understanding the options. We had to make a selection before they'd show us any price. LONG interview with little to show for it. Very stuck on getting you to decide there and then. On the second visit the man was much more forth right and helpful. Still didn't go with Sears because we couldn't trust them for the overall value (seem to have a large over head) or who does the work (and a negative taste with 'sales')."
A/C Diagram
Carrier Air Filters
Kenmore unit
Carrier furnace
Recommended by82%of homeowners
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Air Conditioning FAQs, answered by experts

A few drips here and there should not be cause for concern, but if your unit is leaking a large amount of water, then it’s advised that you stop using it until the problem is identified and a solution is determined. The more you use it during a leak, the more issues it will cause.

Your central A/C unit should be professionally serviced and inspected at least once a year to ensure it operates properly and efficiently. This is best done before the peak cooling season. A full-service inspection by a qualified pro will typically include checking safety components for issues like carbon monoxide leaks, verifying cooling components and coolant levels, and inspecting electrical parts like fuses and wiring. Regular servicing enhances efficiency, mitigates potential problems, and maintains optimal performance. Because AC systems contain hazardous refrigerant, professional handling is essential.

You should flush your AC drain line once every three months to keep it clear of debris and buildup. Keeping your AC drain line clean prevents clogs, backups, mold growth, and extra wear on your AC unit. If you live in a humid area or have several furry pets, up your cleaning schedule to once a month.

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.

The length of an AC cycle depends on the settings in your thermostat and the unit you have. Central AC doesn't constantly run at full blast the way that a window unit does. A cooling cycle in most homes is 15 to 20 minutes. Then, the unit stays off for seven to 10 minutes to circulate the cold air in the house before the cycle repeats. It should repeat two or three times per hour. A short cycle lasts less than 10 minutes and then turns off.

The Walnut, IL homeowners’ guide to air conditioning services

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