- 727 Hastings Dr, Buffalo Grove, IL 60089
- info@asteraservice.com
- (815) 384-4426
Residential Air Conditioning Repair Services
Searching for AC repair near Chicago, IL? Astera is a family-owned HVAC company providing fast diagnostics, expert repairs, and same-day service. That’s what our customers can count on.
Our certified technicians arrive fully equipped and ready to restore your home’s comfort. Our services are backed by up to a 10-year labor warranty, along with transparent, upfront pricing.
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Need a local AC Repair Company in Chicago? We’re Experts You Can Trust
At Astera, our team services both residential and commercial air conditioning systems. No matter the size of the system, our company approaches every repair with the same level of care and professionalism.
Our technicians stay up to date with the latest air conditioning technologies and repair techniques. Every job is completed according to industry standards and Chicago building codes. Whether it’s central air, heat pumps, ductless mini-splits, or rooftop package units, we handle every system with precision and expertise.
You can expect:
- Licensed and insured air conditioning contractors you can trust in your home
- Transparent, upfront pricing with no surprises
- Long-lasting AC repair with warranties for peace of mind
- Flexible financing and rebate options
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Professional Residential Air Conditioner Repair With Lasting Comfort
Coming home to a sweltering house in the middle of a Chicago summer isn’t something anyone should have to deal with. When you need residential air conditioner repair today, ASTERA is ready to help.
Our technicians offer same-day AC repair and can quickly diagnose most AC problems during the first visit. In many cases, we can complete the repair the same day. This gets your system humming again when you need it, with little downtime.
What to Expect from ASTERA AC Repair Company
With our professional team, you’ll get a smooth and professional repair experience. We offer everything from a consultation to a well-operating system that keeps your home or business at just the right temperature.
- Comprehensive Consultation: Get a detailed assessment of your requirements for the most efficient solution and repairs for your property.
- Accurate Diagnosis & Repair Plan: We’ll review your system and provide exactly what you need to get your system back up and running!
- Professional Experience: Our contractors are licensed, insured, and experienced in all industry standards.
- Thorough Testing and Calibration: We’re not done until we verify that your air conditioner is working at peak performance for the best results possible.
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24/7 Contact Support
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People Trust
Why Chicago Homeowners Trust ASTERA
24/7 Availability
We work only with genuine parts
We offer warranties for parts and labor
Up to 10 years warranty for HVAC Installations
Astera Comfort Club
Transparent Pricing
Client Says
Check Our Latest Reviews
Astera has worked on thousands of residential projects and received top-rated reviews from our customers. Check out our latest reviews here.
EXCELLENT Based on 665 reviews Posted on Nell SchneiderTrustindex verifies that the original source of the review is Google. Excellent service--on time--reasonable pricing.Posted on Terrie SobeskiTrustindex verifies that the original source of the review is Google. George was professional and very nicePosted on Cheryl KennedyTrustindex verifies that the original source of the review is Google. Val was extremely professional and helpful. He was upfront with the total cost, came back same day with the needed parts, worked to find the best price for the parts saving me money, and made recommendations for future trade-in service on a humidifier. Will definitely use Astera services again and recommend them to other condo unit owners.Posted on Sam NelsonTrustindex verifies that the original source of the review is Google. Vlad was on time & great customer service.
Owner's reply
Thank you for your feedback! We’re glad to hear that Vlad was on time and provided great customer service. We appreciate your support!Posted on John NapolitanoTrustindex verifies that the original source of the review is Google. I contacted Astera because I was not getting any heat in my baseboard heating system on the first floor of my home. Upon emailing them I received a response within the same day as well as numerous options for a in-home appointment and service. So they sent Steven who is one of the technicians for HVAC. Upon talking with him as well as inspecting the boiler in my basement he immediately came up with a plan. Steven spent a lot of time making sure I understood about what happened and why I was not getting any heat. He discussed with me what needed to be done and he made sure I understood. He completed all of the required work and I was very happy with the money that I spent for my total repair. This is the third time I have used Astera for issues in my home as well as my sister's home. I have been so happy with the service that I receive from Astera and will definitely continue to use them down the road. Thanks Steven John N Westchester
Owner's reply
Thank you John, for your positive review! We're happy to hear that our company provided quick and efficient service.Posted on David M. LewinTrustindex verifies that the original source of the review is Google. Great service. The guy knew what he was doing. Timely. Got the job done right. Price was reasonable. I would definitely use them again.
Owner's reply
Thank you for your great review! We’re happy to hear that you had a positive experience and that our technician got the job done right. We appreciate your support and look forward to serving you again in the future!Posted on Mike FriedlanderTrustindex verifies that the original source of the review is Google. Super responsive, professional, knowledgeable. HIGHLY RECOMMENDED!
Owner's reply
Thank you for your kind words! We’re glad you had a great experience with our service. Your recommendation means a lot to us!Posted on Reed StevensTrustindex verifies that the original source of the review is Google. So far they are among the best service providers I have hired.
Owner's reply
Thank you for the wonderful feedback! We’re so glad to hear that you had a great experience with our service. We always strive to provide the best for our customers and your kind words mean a lot to us!Posted on Crystal NovakTrustindex verifies that the original source of the review is Google. Astera was able to come look at our appliance a few hours after my initial outreach. The technicians were friendly, trustworthy, and repaired our SubZero with no problem. I recommend them without reservation!
Owner's reply
Thank you so much for your kind words! We’re thrilled yo hear that our technicians were able to help and that you Subzero is working perfectly again. We truly appreciate your recommendation and look forward to assisting you again in the future!
EXCELLENT Based on 10 reviews Posted on J L.Verified Extremely quick responses with prompt scheduling; it was a great start to the job. Roman provided excellent and conscientious service - we would not hesitate to use Astera again.Posted on Ryan L.Verified I had both my washer and dryer serviced by Val. He walked me through everything he was working on and was finished up in about an hour. He was very knowledgeable with the specific models that I had. I would highly recommend!Posted on Rick J.Verified I read the Yelp reviews for Astera before I reached out to them, and the 5-star reviews are spot on! I sent a message via Yelp on a Sunday night and they immediately scheduled our oven troubleshooting for Monday afternoon. Their front office staff is incredibly responsive! George (technician) arrived timely and was very thorough. He explained things to me every step of the way. He is approaching this very methodically - ok, so it's not the igniter, let's look at the next link in the chain... I saw George called out by name in other Yelp reviews, and I understand why he comes so highly recommended! He called the manufacturer to discuss his findings, but the manufacturer tech team wasn't available. He let me know he would be calling them again in the morning and that he would reach out to me with an update. I've had plenty of negative or so-so experiences with other service technicians from other companies. This experience with George / Astera is so positive that I'm posting my review even before the service is completed. Astera will be getting first crack at all of my appliance and HVAC service calls going forward.Posted on David K.Verified This is my second experience with Astera and have only the highest praise for this business and the people that work there. From the person who answers the phone to the technician who comes out, everyone is friendly and polite. They're great with communication so you know when their techs are coming out. Our Sub-Zero fridge was throwing error codes which they diagnosed and repaired a faulty board. The work was done right and Alex explained everything afterwards. Highly recommend.Posted on L H.Verified Absolutely amazing company and employees! Rebuilt a brand new furnace installed by someone else, redid air intakes, humidifiers, disposal, broken freezer. Constant communication and always on time I'm so happy I found them! They even provided a rebate for taxes which the original installer wouldn't. 100% pleased, can't say enough good things about them!Posted on Peter P.Verified Repeat customer here and asked for Val M because he is great to work with. Clearly explains what needs to be done, very kind, and doesn't put pressure on you. Will continue to use Astera for their great service.Posted on Ellen L.Verified Val from Astera Heating, Cooling,and Appliance Repair was thorough, helpful,and he had great suggestions for regulating the heat in my home. The price was very reasonable as well for my yearly inspectionPosted on Liz S.Verified They were prompted on time kept me updated and did a very thorough job. I would highly recommend them.Posted on Diane D.Verified I recently had both the heat and hot water go out. I have an old boiler that needed several new parts but otherwise works fine. They recommended regular maintenance but unlike other HVAC companies don't try to sell you a new, much more expensive system. If you appreciate a company that will just fix your problem without upselling you, I would recommend Astera. The techs are friendly and knowledgeable. They talk you through the repair and answer any questions.Posted on Yvonne B.Verified found Astera Heating, Cooling and Appiances from a Google search. Their reviews were nothing but positive so I hired them to work on my boiler. The office staff was kind and professional. The service technician is extremely knowledgeable and did a thorough job on our repair. The interaction from start to finish was professional and efficient. I am adding my positive review to the reviews out on the internet. I would recommend this company for your Heating and Cooling needs.
Book Your Air Conditioner Repair in Chicago, IL Today
Contact ASTERA today to schedule a professional AC diagnostic and repair in or near Chicago, IL. Our skilled technicians offer thorough testing and expert repairs. We restore your system to its full function.
With every repair, you get:
- Competitive pricing
- Fast service
- Satisfaction guarantee with every repair
Our reliable, high-quality air conditioning services will ensure your system is operating optimally to keep your home at just the right temperature, no matter the weather.

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We Service All Major Brands and Models





















Areas We Serve
We offer AC installation services in Chicago and its surrounding areas.
Repair & Installation
Freqently Asked Questions
1
What types of air conditioners does ASTERA repair?Our technicians service all major air conditioning brands. Have AC problems? We can tackle them!
2
How much does residential AC repair cost in Chicago?Prices vary based on what’s wrong and the extent of the AC repair, but our prices are competitive and we offer all quotes upfront so there are no surprises.
3
Can ASTERA perform emergency AC repairs?Yes! We offer:
- Same-day
- 24/7 service
Our technicians service all major air conditioning brands and system types.
4
How do I schedule an AC repair appointment with ASTERA?It’s as simple as:
- Visit our homepage to contact us
- Speak to one of our representatives
- Schedule a service visit as soon as possible
Does ASTERA provide maintenance to prevent future AC problems?
Of course! We can offer regular maintenance for any system - new or old. Prevent future AC repair with ASTERA.
5
Why is my AC running but not cooling?It could be a lot of things. Common air conditioning issues we see are:
- Low refrigerant levels or leaks
- Failing compressor
A clogged filter? It’s a simple fix. Others require extensive diagnostics. It’s always best to consult the professionals to diagnose your unit’s problems.
6
How long do AC repairs take?It depends. Most repairs can be completed on the same day. But if it’s a more difficult fix, we’ll give you an estimated timeline upfront.
7
Why does my air conditioner keep turning on and off frequently?Units turning on or off randomly? This is a challenging issue to pinpoint. A dirty air filter. Electrical issues. Other causes. In either case, on and off cycles:
- Causes extra wear and tear on your system
- Premature failure
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