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  • Average homeowner rating star icon4.7
    Average homeowner rating
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    Verified heating and air conditioning services reviews

Find Heating and air conditioning pros in Oak Brook

Avatar for All Temp Heating & Air Conditioning

All Temp Heating & Air Conditioning

4.52(
2,724
)
Approved Pro

All Temp Heating & Air Conditioning

4.52(
2,724
)
Approved Pro
Customers say: Quality work
286 local quotes requested
87 years of experience

All Temp is one of Chicago's Award Winning heating, cooling and home comfort company. We provide top-notch sales, service, repair and maintenance at the most competitive prices. We are family-owned since 1938 with more than 85 employees and we do not use sub-contractors. Always feel free to call us with your questions or for sales and service. We provide a free in-home estimate should you need a new a/c, furnace or boiler. We can be reached at 1-800-All-Temp or 773-481-2000 for more information. We are at your service 24/7. Ask for Mike Clark, Erin Wayda or Rick Jacobs. See our website for additional service area.

"Professional and thorough. Central humidifier installed without issue."

Shawn C on November 2024

All Temp is one of Chicago's Award Winning heating, cooling and home comfort company. We provide top-notch sales, service, repair and maintenance at the most competitive prices. We are family-owned since 1938 with more than 85 employees and we do not use sub-contractors. Always feel free to call us with your questions or for sales and service. We provide a free in-home estimate should you need a new a/c, furnace or boiler. We can be reached at 1-800-All-Temp or 773-481-2000 for more information. We are at your service 24/7. Ask for Mike Clark, Erin Wayda or Rick Jacobs. See our website for additional service area.

"Professional and thorough. Central humidifier installed without issue."

Shawn C on November 2024


Avatar for Energy Services Air Conditioning & Heating Co

Energy Services Air Conditioning & Heating Co

4.72(
927
)
Approved Pro

Energy Services Air Conditioning & Heating Co

4.72(
927
)
Approved Pro
Customers say: Super punctual
Recommended by 91% of Angi customers
Recommended by 91% of HomeAdvisor customers
71 local quotes requested

At Energy Services Air Conditioning, Heating & Electrical, we go beyond the level of service you expect, and deliver the exceptional results you deserve. From routine system maintenance, to emergency repair, equipment upgrades and complete system install, our goal is to bring more expertise, resources, and professionalism to every job than any other HVAC service provider in Naperville, Aurora, Geneva, St. Charles & Wheaton IL. We offer flexible solutions for spaces large and small, customizing our designs to meet your exact needs, and providing the most cutting-edge products on the market. Cost is determined by the job. Additional Phones: (630) 969-1400, (630) 687-1383, (630) 420-2275. Fax: (630) 420-2096 DBA: GFI Heating & Cooling. Senior Discount: $5.00

"Tech came out and heard my concerns, went over the blower, and found that it had been mis-diagnosed of where the other company who installed it was looking. Hugely appreciated that the tech listened to what I was having a problem with and not exact information provided, and was able to provide me with information to go back to my install company with."

Grant P on October 2025

At Energy Services Air Conditioning, Heating & Electrical, we go beyond the level of service you expect, and deliver the exceptional results you deserve. From routine system maintenance, to emergency repair, equipment upgrades and complete system install, our goal is to bring more expertise, resources, and professionalism to every job than any other HVAC service provider in Naperville, Aurora, Geneva, St. Charles & Wheaton IL. We offer flexible solutions for spaces large and small, customizing our designs to meet your exact needs, and providing the most cutting-edge products on the market. Cost is determined by the job. Additional Phones: (630) 969-1400, (630) 687-1383, (630) 420-2275. Fax: (630) 420-2096 DBA: GFI Heating & Cooling. Senior Discount: $5.00

"Tech came out and heard my concerns, went over the blower, and found that it had been mis-diagnosed of where the other company who installed it was looking. Hugely appreciated that the tech listened to what I was having a problem with and not exact information provided, and was able to provide me with information to go back to my install company with."

Grant P on October 2025


Avatar for G & R Heating & Air

G & R Heating & Air

4.51(
97
)
Approved Pro

G & R Heating & Air

4.51(
97
)
Approved Pro
Customers say: Super punctual
236 local quotes requested
Free onsite estimate

We are a family owned and operated company, specializing in heating and cooling services, installs, repairs, and more! We personally care for each customer like our own family. We guarantee your satisfaction and we won’t leave until the job is done right. We pride ourselves on the quality work we provide, while delivering great customer service! Check out all of the services we offer below and call -- or-- click to schedule a free estimate today!

"Great experience with G & R Heating & Air! Quick response, knowledgeable staff, and the repair was done right the first time. Our home is comfortable again. Highly satisfied!"

Aliza Q on November 2025

We are a family owned and operated company, specializing in heating and cooling services, installs, repairs, and more! We personally care for each customer like our own family. We guarantee your satisfaction and we won’t leave until the job is done right. We pride ourselves on the quality work we provide, while delivering great customer service! Check out all of the services we offer below and call -- or-- click to schedule a free estimate today!

"Great experience with G & R Heating & Air! Quick response, knowledgeable staff, and the repair was done right the first time. Our home is comfortable again. Highly satisfied!"

Aliza Q on November 2025


Avatar for Shavitz Heating and Air Conditioning

Shavitz Heating and Air Conditioning

4.75(
401
)
Approved Pro

Shavitz Heating and Air Conditioning

4.75(
401
)
Approved Pro
Customers say: Quality work
Recommended by 93% of Angi customers
Recommended by 93% of HomeAdvisor customers
23 local quotes requested

Whether you need to have your air conditioning system completely replaced or you just need some basic heating repairs, call the friendly and professional technicians at Shavitz Heating & Air Conditioning. We value our Chicago heating and air conditioning customers and treat them like our family. We want you to be comfortable in your home. That is why we offer a 100% satisfaction guarantee and a lifetime workmanship warranty. Also, if we cannot install a new AC or heating system for you in a day, our technicians will deliver a portable heater or air conditioning system so that you can stay comfortable in your home. Call our team today to schedule HVAC services in the Chicagoland area.

"The technician arrived precisely on schedule and performed a thorough checkup of the heating system, using state-of-the-art diagnostic tools. He also explained the condition of the furnace and helpfully forecasted its likely future."

John P on September 2025

Whether you need to have your air conditioning system completely replaced or you just need some basic heating repairs, call the friendly and professional technicians at Shavitz Heating & Air Conditioning. We value our Chicago heating and air conditioning customers and treat them like our family. We want you to be comfortable in your home. That is why we offer a 100% satisfaction guarantee and a lifetime workmanship warranty. Also, if we cannot install a new AC or heating system for you in a day, our technicians will deliver a portable heater or air conditioning system so that you can stay comfortable in your home. Call our team today to schedule HVAC services in the Chicagoland area.

"The technician arrived precisely on schedule and performed a thorough checkup of the heating system, using state-of-the-art diagnostic tools. He also explained the condition of the furnace and helpfully forecasted its likely future."

John P on September 2025


Avatar for Freedom Heating & Cooling

Freedom Heating & Cooling

4.74(
2,770
)
Approved Pro

Freedom Heating & Cooling

4.74(
2,770
)
Approved Pro
Customers say: Super punctual
Recommended by 91% of Angi customers
Recommended by 91% of HomeAdvisor customers
32 local quotes requested

Freedom Heating & Cooling has a tradition of meeting customer needs. From the most complex installation to routine service and maintenance, Freedom Heating & Cooling has the tools, the people, and the products to provide a system that fits your lifestyle and budget. Ask us for references from your neighborhood, and let us show you how we can exceed your expectations in service and performance. Family/locally owned & operated, you’ll be able count on us now and for many years to come. Residential & commercial. Same day service. Certified technicians. Service all makes & models. Competitive pricing. Financing available. 24 hour 7 day emergency service. Call us at 1-847-288-1788 for service or free in home estimate, or for information, call one of our local numbers: Barrington (847) 843-7300, Belwood (708) 344-2225, Chicago (773) 685-5252, Downers Grove (630) 769-1939, Forest Park (708) 771-1894, Franklin Park (847) 451-6100, Glen Ellyn (630) 790-4565, Norridge (708) 453-5323, River Grove (708) 456-1860, Schiller Park (847) 678-5228, Stone Park (708) 338-5000.

"Josh was very professional throughout the installation process and ensured my tenant on-site understood the basics. In addition, Josh sent Miguel the same day to ensure the humidifier was working properly."

Meladee H on September 2025

Freedom Heating & Cooling has a tradition of meeting customer needs. From the most complex installation to routine service and maintenance, Freedom Heating & Cooling has the tools, the people, and the products to provide a system that fits your lifestyle and budget. Ask us for references from your neighborhood, and let us show you how we can exceed your expectations in service and performance. Family/locally owned & operated, you’ll be able count on us now and for many years to come. Residential & commercial. Same day service. Certified technicians. Service all makes & models. Competitive pricing. Financing available. 24 hour 7 day emergency service. Call us at 1-847-288-1788 for service or free in home estimate, or for information, call one of our local numbers: Barrington (847) 843-7300, Belwood (708) 344-2225, Chicago (773) 685-5252, Downers Grove (630) 769-1939, Forest Park (708) 771-1894, Franklin Park (847) 451-6100, Glen Ellyn (630) 790-4565, Norridge (708) 453-5323, River Grove (708) 456-1860, Schiller Park (847) 678-5228, Stone Park (708) 338-5000.

"Josh was very professional throughout the installation process and ensured my tenant on-site understood the basics. In addition, Josh sent Miguel the same day to ensure the humidifier was working properly."

Meladee H on September 2025


Avatar for A+ Appliance Repair and Maintenance

A+ Appliance Repair and Maintenance

4.56(
25
)
Approved Pro

A+ Appliance Repair and Maintenance

4.56(
25
)
Approved Pro
Super Service Award
Customers say: True professional
771 local quotes requested
10 years of experience

A+ Appliance Repair and Maintenance, your trusted appliance repair service in Chicagoland, IL. From refrigerators and washers to dishwashers, dryers, stoves, and ovens, we handle repairs for a wide range of appliances. We service major appliance brands like Frigidaire, Thermador, Bosch, Gaggenau, Wolf, Sub-Zero, Viking, Bertazzoni, Dacor, US Range, Garland, Miele, Samsung & LG. We provide appliance repair Cook County, appliance repair Lake County, appliance repair DuPage County, appliance repair Will County, appliance repair McHenry County, appliance repair Kane County, appliance repair Kendall County. Contact our team today to schedule an appointment for your appliance repair needs. We look forward to serving you and becoming your go-to appliance repair service in Chicago and Suburbs, IL. Call (800)-819-4195.

"Technician was able to resolve the issue in about 20 minutes. Got our freezer working."

Sal R on October 2025

A+ Appliance Repair and Maintenance, your trusted appliance repair service in Chicagoland, IL. From refrigerators and washers to dishwashers, dryers, stoves, and ovens, we handle repairs for a wide range of appliances. We service major appliance brands like Frigidaire, Thermador, Bosch, Gaggenau, Wolf, Sub-Zero, Viking, Bertazzoni, Dacor, US Range, Garland, Miele, Samsung & LG. We provide appliance repair Cook County, appliance repair Lake County, appliance repair DuPage County, appliance repair Will County, appliance repair McHenry County, appliance repair Kane County, appliance repair Kendall County. Contact our team today to schedule an appointment for your appliance repair needs. We look forward to serving you and becoming your go-to appliance repair service in Chicago and Suburbs, IL. Call (800)-819-4195.

"Technician was able to resolve the issue in about 20 minutes. Got our freezer working."

Sal R on October 2025


"They came out when they said they would, and did a wonderful job."

MIKE N on July 2023

80% of our jobs are referrals from previous customers. We have never had a BBB complaint in 52 years. Our equipment has a 10 year parts and labor warranty.

"They came out when they said they would, and did a wonderful job."

MIKE N on July 2023


Avatar for AL'S Cooling & Heating

AL'S Cooling & Heating

5.00(
5
)
Approved Pro

AL'S Cooling & Heating

5.00(
5
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
32 local quotes requested

24/7 Availability. $55 service call for new customers. $79 furnace tune-up. Fix your furnace and make sure it's working before the cold arrives! Call us now. Family owned and operated. We are a small business where customer satisfaction is our #1 priority.

"Installation was quick, complete and performed in a professional manner from start to finish!"

Sean C on June 2023

24/7 Availability. $55 service call for new customers. $79 furnace tune-up. Fix your furnace and make sure it's working before the cold arrives! Call us now. Family owned and operated. We are a small business where customer satisfaction is our #1 priority.

"Installation was quick, complete and performed in a professional manner from start to finish!"

Sean C on June 2023


Avatar for Home Repairs R' Us Inc

Home Repairs R' Us Inc

4.25(
271
)
Approved Pro

Home Repairs R' Us Inc

4.25(
271
)
Approved Pro
Customers say: Quality work
1403 local quotes requested
24 years of experience

Please NOTE: we DO NOT accept furniture assembly or wall mounting projects. With over 17 years of Plumbing, Interior painting and all facets of general handyman work, Home Repairs R Us continues to be South/Southwest Chicago's "One Stop Home Repair Service Shop". Deal direct with owner Eric Henry and his dedicated, professional crew on any handyman job you need completed. Eric's wide home repair skill set makes it convenient for any home owner to make one call and accomplish just about any service needed at your residence or business. Call us today!

"Everything is beautiful. The two of them tackle it in two days. I'm very happy with the work."

JEROME W on November 2020

Please NOTE: we DO NOT accept furniture assembly or wall mounting projects. With over 17 years of Plumbing, Interior painting and all facets of general handyman work, Home Repairs R Us continues to be South/Southwest Chicago's "One Stop Home Repair Service Shop". Deal direct with owner Eric Henry and his dedicated, professional crew on any handyman job you need completed. Eric's wide home repair skill set makes it convenient for any home owner to make one call and accomplish just about any service needed at your residence or business. Call us today!

"Everything is beautiful. The two of them tackle it in two days. I'm very happy with the work."

JEROME W on November 2020


Avatar for Handyman Pros

Handyman Pros

4.84(
842
)
Approved Pro

Handyman Pros

4.84(
842
)
Approved Pro
Super Service Award
Customers say: Super punctual
Recommended by 94% of Angi customers
Recommended by 94% of HomeAdvisor customers
423 local quotes requested

ONE CALL CAN SOLVE ALL YOUR HOUSE PROBLEMS Professional Handyman Services, Kitchen & Bath Remodeling, Plumbing, Electrical, Carpentry, Tiling, Flooring Insured Bonded Guaranteed LIVE PHONE HELP Mon-Fri 8-5 email chat after hours... Chicago Home Repair License #2209943

"Excellent work and friendly service. Will use again."

Diane D on September 2025

ONE CALL CAN SOLVE ALL YOUR HOUSE PROBLEMS Professional Handyman Services, Kitchen & Bath Remodeling, Plumbing, Electrical, Carpentry, Tiling, Flooring Insured Bonded Guaranteed LIVE PHONE HELP Mon-Fri 8-5 email chat after hours... Chicago Home Repair License #2209943

"Excellent work and friendly service. Will use again."

Diane D on September 2025

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Heating and Air Conditioning questions, answered by experts

While all portable AC units will collect moisture as part of their cooling and dehumidifying process, whether and how often you need to drain them depends on what kind of unit you have and the natural humidity levels where you live. For example, if you live in a very dry area and have a self-evaporating unit, you may not need to drain your portable AC very often at all. Some units may automatically drain collected moisture out the window through their exhaust vent.

You need to know the square footage of your home first. Multiply that number by 20, which will get you the BTUs (British Thermal Units) needed to cool your home efficiently. Homes up to 1,000 square feet usually need a 1.5-ton unit; homes 1,000 to 1,200 square feet usually need a 1.75-ton unit, and homes 1,200 to 1,400 square feet usually need a 1.9-ton unit. Talk to a local pro for more specific advice on your home. 

A frosty expansion valve that isn't blowing out cool air is a sure sign that it’s time to replace it. It might also be time to replace the TXV valve if your AC unit switches off soon after turning on or if you have poor airflow in your home.

To extend your HVAC system’s lifespan, it’s crucial to keep up with maintenance. This includes changing filters and thermostat batteries, keeping the outside unit clean and clear of clutter, and lubricating moving parts. Watch out for leaks, mold buildup, and blockages to ensure your unit stays in good working order. Spotting these issues early can be the difference between a simple, wallet-friendly repair and an expensive replacement.

Setting your AC unit to 78 degrees can, indeed, help you save energy. In fact, according to experts, every degree you turn the unit up could save you between 1% and 3% on your energy bills. That said, turning your unit off entirely while you’re out might actually be less efficient than keeping it on at a higher temperature. Why? The unit will need to work extra hard to cool the house back off again after all those hot hours. 

The Oak Brook, 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.