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AC units after being repaired by a local pro

5 Best AC Repair Services in Carpentersville, IL

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Written By Max Peterson|Last Updated: April 18, 2024

Technical failures can be an inconvenience for homeowners who need an air conditioner (AC) repair in Carpentersville, especially in the summer months when keeping cool is essential. Discover Carpentersville's top HVAC repair and replacement companies, and read further about what your home might need.

Top AC Repair Companies in Carpentersville, IL

Advantage Heating & Cooling Logo

Advantage Heating & Cooling

Based on 349 customer reviews.

Services Offered

Ac RepairFurnace InstallationEmergency ServicesIndoor Air QualityDuctlessFurnace RepairAc InstallationMaintenance


  • Reliable customer support
  • Clear pricing policy
  • Free quote
1750 Todd Farm Dr Ste D, Elgin, IL 224-203-2058 advantageheatac.com
G & R Heating and Air Logo

G & R Heating and Air

Based on 1,626 customer reviews.

Services Offered

InspectionBoiler InstallationEmergency ServicesDuct CleaningSmart Home IntegrationAc RepairAc InstallationBoiler RepairFurnace RepairMaintenanceFurnace InstallationIndoor Air QualityFiltration


  • Free quote
  • Clear pricing policy
  • Reliable customer support
24 Center Dr Unit #9, Gilberts, IL 224-419-5324 grheatingcooling.com
Leith Heating and Cooling Inc. Logo

Leith Heating and Cooling

Based on 594 customer reviews.

Services Offered

Indoor Air QualityAc RepairFurnace RepairFurnace InstallationMaintenanceAc InstallationDuctlessFiltration


  • Clear pricing policy
  • Informative resources
  • Reliable customer support
2587 Millennium Dr Unit J, Elgin, IL 224-509-9861 leith-hvac.com
Kustom Heating and Cooling Logo

Kustom Heating and Cooling

Based on 696 customer reviews.

Services Offered

Emergency ServicesDuctlessFurnace InstallationRadiant HeatingZoning SystemsAc InstallationFiltrationBoiler InstallationAc RepairIndoor Air QualityMaintenanceFurnace Repair


  • Reliable customer support
  • Clear pricing policy
  • Informative resources
11n259 Hawthorne St, Elgin, IL 847-915-3555 kustomheating.com

More Local Hvac Companies

On The Mark Heating and Air

User Reviews: 5/5 

2200 Stonington Ave Suite 110
Hoffman Estates, IL 60169

Climate Control Services LLC

User Reviews: 5/5 

13N085 Coombs Rd Unit D
Elgin, IL 60124

Harmonic Heating, Air Conditioning & Plumbing, previously Official Heating & Cooling

User Reviews: 5/5 

5214 S Illinois Rte 31
Crystal Lake, IL 60012

Bartlett Heating & Air Conditioning

User Reviews: 5/5 

1235 Humbracht Cir Suite C
Bartlett, IL 60103


User Reviews: 4.7/5 

9 Michigan Ave
East Dundee, IL 60118

One Call Heating & Cooling

User Reviews: 4.7/5 

707 W Main St
West Dundee, IL 60118

Air Blue Heating and Cooling

User Reviews: 4.7/5 

1154 N Main St Unit D
Algonquin, IL 60102

TEM Control HVAC Inc.

User Reviews: 4.7/5 

1445 Geringer Rd
Algonquin, IL 60102

Evolution Mechanical Heating & Cooling- McHenry County, Illinois

User Reviews: 4.7/5 

7103 Manor Rd # 1
Crystal Lake, IL 60014

To share feedback or ask a question about this article, send a note to our Reviews Team at reviewsteam@thisoldhousereviews.com.

AC units after being repaired by a local pro

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Facts about Carpentersville
Average Max Temp Percentile:36.1%
August Average Max Temp:81.1°F
Climate Zone:Cold
Average Energy Cost:$0.13/kWh
Median Year Houses Built:1979
Average Heat Waves per Year:0.58

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Common Types of Air Conditioners

There are a few different types of air conditioner systems on the Carpentersville market. While HVAC technicians can work with most types, knowing which one you have will ease your company hunt.

  • Portable air conditioners: As the name hints, portable air conditioners don't require permanent installation or ductwork. Instead, they remove hot air through an exhaust hose connected to a window or nearby vent. They're preferred for condos, apartments, or individual rooms.
  • Split ACs: Split air conditioner units have two main elements: one inside and one outside. They provide quiet operation, improved energy efficiency, ductwork options, and more cooling capability versus mini-splits.
  • Window ACs: Window air conditioners are a popular choice for Carpentersville townhomes, condos, and apartments. These compact, affordable units are designed for cooling small spaces and single rooms, and they fit snugly in a window frame or dedicated wall slot. Many window AC users set up their units without professional assistance, though technicians can still help with maintenance and repairs.
  • Ductless mini-split: Ductless mini-split ACs have an outdoor unit and multiple interior units, with no ductwork required. They offer higher energy efficiency, flexible installation options, and individual room temperature control.
  • Central AC: These are the most common home air conditioners, offering precise, consistent temperature control. They feature a central unit that cools air from outside, purifies it, and sends it through ducts to different rooms in your home.

How to Choose Your Carpentersville AC Repair Service

While you might want to resolve your AC issue quickly, you should do your research before hiring a repair service. Take the following steps to ensure you find the most reliable company for your home.

Confirm the Company Is Properly Licensed and Insured

There's no state HVAC license in the Land of Lincoln. Instead, cities and counties are free to set their own requirements and regulations. Check with your local building department for more information.

You should also verify a company has sufficient liability coverage, even if your state doesn't require it. Choosing an insured company will protect you if something gets damaged during work.

Read Customer Reviews

Read customer reviews on the Better Business Bureau (BBB) website for each company you're interested in. The BBB recognizes contractors that resolve complaints effectively and honor their warranties.

It's common for even the best AC repair companies to have both positive and negative reviews. Read each one carefully, and avoid a business if most reviewers had subpar experiences.

Compare Estimates

Obtain at least three detailed, written estimates from different companies for the best value. A good estimate should include additional fees such as permitting costs. You should also ask about manufacturer warranties, installer guarantees, and the emergency repair process.

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Frequently Asked Questions About AC Repair in Carpentersville

What's the cost of an AC repair job in Carpentersville?

Your AC unit repair costs will hinge on your system's make and model and the malfunctioning part. A basic repair job like sorting out a thermostat might cost $150–$250, whereas a more intricate fix like exchanging the compressor will be more expensive.

See the average costs for common AC repairs below.

Common RepairAverage Cost
Clogged air filter$65–$174
Electrical circuits$200–$250
Drainage problems$100–$150
Refrigerant leak$400–$1500
Frozen condenser coils$1,303–$3,909
Fan or air blower issues$150–$200
Compressor replacement$600–$1,650

Why is my AC running but not cooling?

If your air conditioner is running but not cooling, a contractor will usually check the condenser coil first. Normally, the outdoor unit fans draw air into the coil so the system can extract heat energy from your home. Removing the clog might be all that's necessary to get your AC cooling again.

Why should I hire an HVAC professional? Couldn't I repair my air conditioner myself?

You can most likely set up a window AC unit on your own. However, installing other AC units should almost always be done by an HVAC contractor who knows the complicated piping, wiring and tubing. We also advise seeking professional installation due to the risk of refrigerant spills.

Should my HVAC company have a private accreditation?

Private accreditations aren't always necessary, but contractors that seek them are typically more trustworthy. The two largest HVAC trade bodies that issue certifications are the American Society of Heating, Refrigerating, and Air Conditioning Engineers (ASHRAE) and Air Conditioning Contractors of America (ACCA).

My HVAC problem is urgent. How quickly could a company respond?

The response time can vary by company, but HVAC companies strive to handle emergency repair requests as quickly as possible. A number of companies offer same-day or next-day service for these issues. While a specific timeframe might be listed in your contract, contacting the provider directly is best so you can get the most accurate information.

To share feedback or ask a question about this article, send a note to our Reviews Team at reviewsteam@thisoldhousereviews.com.