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Oasis Plumbing, Heating & Cooling Offers Seasonal Maintenance Plans

Professional AC Repair Services for Chicago Homes and Businesses

When your air conditioning system breaks down during a sweltering Chicago summer, you need immediate relief. At Oasis Plumbing, Heating & Cooling, we understand the urgency of AC repair situations and respond quickly to restore comfort to your home or business. Our experienced technicians arrive equipped with advanced diagnostic tools and a comprehensive inventory of replacement parts to handle most repairs in a single visit. We’ve been serving Chicago and the Northern Suburbs for over 20 years, building our reputation on prompt, reliable service that gets your cooling system running efficiently again.

Chicago’s humid continental climate creates unique challenges for air conditioning systems. The dramatic temperature swings, high humidity levels, and occasional severe weather put significant stress on AC units throughout the cooling season. Our technicians are specifically trained to address the common issues that plague air conditioners in our region, from frozen evaporator coils caused by restricted airflow to compressor failures resulting from electrical surges during thunderstorms. We diagnose problems accurately the first time, saving you money on unnecessary repairs while ensuring your system operates at peak performance.

Common AC Problems We Repair

Air conditioning systems consist of numerous components working together to cool and dehumidify your indoor space. When one component fails, it often affects the entire system’s performance. We frequently repair refrigerant leaks, which not only reduce cooling capacity but also increase energy consumption and utility bills. Our technicians use electronic leak detectors and UV dye testing to pinpoint even the smallest leaks in refrigerant lines, evaporator coils, and condensing units. After repairing the leak, we evacuate the system, test for proper vacuum hold, and recharge with the exact amount of refrigerant specified by the manufacturer.

Electrical issues represent another category of common AC repairs we handle daily. From failed capacitors that prevent motors from starting to worn contactors that cause intermittent operation, electrical problems can manifest in various ways. We systematically test each electrical component using professional-grade multimeters and specialized testing equipment. Faulty thermostats, broken fan motors, and malfunctioning control boards all fall within our repair expertise. Since 1997, we’ve maintained our commitment to quality customer service by thoroughly explaining each repair and providing transparent pricing before beginning any work.

Our Comprehensive Repair Process

Every AC repair service begins with a thorough system evaluation. We inspect both indoor and outdoor components, checking refrigerant pressures, measuring temperature differentials, testing electrical connections, and examining mechanical parts for wear or damage. This comprehensive approach helps us identify not only the immediate problem but also potential issues that could cause future breakdowns. Our technicians document their findings and discuss repair options with you, including cost comparisons between repairs and replacement when appropriate.

Following diagnosis, we perform repairs using industry-best practices and high-quality replacement parts. We maintain relationships with major manufacturers, ensuring access to OEM components that match your system’s specifications exactly. Whether replacing a failed compressor, installing a new blower motor, or rebuilding a condensate pump, we complete each repair with meticulous attention to detail. Our work includes cleaning accessible components, tightening electrical connections, and verifying proper operation before considering the job complete.

Signs Your AC System Needs Professional Repair

Recognizing early warning signs of AC problems can prevent minor issues from escalating into major repairs. Unusual noises often indicate mechanical problems requiring immediate attention. Grinding sounds typically suggest bearing failure in motors, while squealing noises may indicate worn belts or misaligned pulleys. Clicking or buzzing sounds frequently point to electrical issues such as failing relays or contactors. We encourage customers to schedule service promptly when hearing any abnormal sounds from their air conditioning system.

Performance issues provide additional indicators that professional repair is necessary. If your AC runs continuously without adequately cooling your space, struggles to maintain set temperatures, or cycles on and off frequently, these symptoms suggest underlying problems requiring expert diagnosis. Increased humidity levels, uneven cooling between rooms, and sudden spikes in energy bills also warrant professional evaluation. Our technicians excel at identifying root causes rather than simply addressing symptoms, ensuring lasting solutions to your cooling problems.

Emergency AC Repair Services

We recognize that AC failures don’t follow convenient schedules. When your air conditioning stops working during a heat wave or fails unexpectedly during important events, you need responsive emergency service. Our emergency repair team stands ready to address urgent cooling issues throughout Chicago, Bensenville, Addison, and Elmhurst. We prioritize emergency calls, understanding that prolonged exposure to excessive heat poses health risks, particularly for elderly residents, young children, and those with medical conditions.

Our emergency response protocol emphasizes rapid diagnosis and efficient repairs to restore cooling as quickly as possible. Technicians arrive with fully stocked service vehicles containing common replacement parts, refrigerants, and specialized tools needed for most emergency repairs. We maintain extensive parts inventories and strong supplier relationships to source less common components quickly when needed. This preparation allows us to complete many emergency repairs during the initial service call, minimizing disruption to your daily routine.

Preventive Maintenance to Avoid Costly Repairs

  • Annual tune-ups: Professional maintenance identifies potential problems before they cause system failure
  • Filter replacement: Clean filters improve efficiency and prevent strain on system components
  • Coil cleaning: Removing dirt and debris from evaporator and condenser coils maintains optimal heat transfer
  • Refrigerant level checks: Proper refrigerant charge ensures efficient operation and prevents compressor damage
  • Electrical component testing: Regular testing catches failing parts before complete failure occurs
  • Condensate drain cleaning: Clear drains prevent water damage and maintain proper humidity control

Regular maintenance significantly extends equipment life while reducing the frequency and severity of repairs. Our maintenance programs include comprehensive inspections, cleaning, adjustments, and minor repairs to keep your system operating efficiently. We customize maintenance schedules based on equipment age, usage patterns, and manufacturer recommendations. Commercial clients particularly benefit from planned maintenance programs that minimize business disruptions and protect valuable inventory or equipment requiring climate control.

Why Choose Oasis Plumbing, Heating & Cooling for Your AC Repair Needs

Our dedication to customer satisfaction sets us apart in the competitive Chicago HVAC market. We combine technical expertise with transparent communication, ensuring you understand exactly what repairs your system needs and why. Our technicians undergo continuous training to stay current with evolving AC technology and repair techniques. This investment in education enables us to service all major brands and models, from basic residential units to complex commercial systems.

We believe in providing customized solutions that fit your budget without compromising quality. Our repair recommendations consider factors such as equipment age, repair costs versus replacement value, and your long-term comfort needs. We offer flexible financing options for major repairs, helping manage unexpected expenses while maintaining home comfort. Our responsive support staff coordinates scheduling, answers technical questions, and ensures smooth communication throughout the repair process. This comprehensive approach to customer service has earned us loyal customers throughout Chicago and surrounding communities who trust us with all their heating, cooling, and ventilation needs.

AC Repair in Chicago, IL

AC Repair in Chicago, IL

AC Repair ∴ Chicago, IL

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Family Owned and Operated Since 1997

Make Your Home An Oasis

Keep all your heating and air conditioning systems running at peak performance with an Oasis Plumbing, Heating & Cooling Energy Savings Program. You can avoid seasonal emergencies, extend the life of your equipment and save money on equipment costs and energy over the life of your systems.

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Contact Oasis Plumbing, Heating & Cooling Today!
Featured Five-Star
Customer Reviews

Oasis was incredibly responsive and efficient! My call to them on a Friday night during a cold spell was returned within 10 minutes and he scheduled a tech to come to my home at 7 the following morning. At 7 the tech was there, examined my furnace confirming that a new motor was necessary. He searched for the part, sent a quote and returned with the motor by noon the same day to install it. You can’t beat that!!! I will be using Oasis for all my future furnace and A/C needs.

Gayle V.

The folks with Oasis showed up right on time and replaced my entire furnace and condenser in about 4.5 hours. I had just redone my laundry room where the furnace is and they took great care not to damage anything. Overall very happy with the service and very happy with how respectful the installers were.

Josh D.

I have been using Oasis since 2019. They are reliable, efficient, and their prices are reasonable. The customer service is amazing. Every tech I’ve had come out is knowledgeable, friendly, and professional. The owner, Mike, is hands on and works with you every step of the way. Highly recommend Oasis.
Services include: furnace and AC replacement; annual maintenance.

Nicole U.

Danny and the folks at Oasis got us a great deal on a new furnace and AC. The install took about 4 hours, and they were also super responsive throughout the process. It was about as good of an experience I’ve had with an HVAC company. I’d highly recommend!

Brian C.

I called Oasis this morning because my furnace was not working. Within 20 minutes their technician, Danny, arrived. Danny was able to assess the situation, provide an immediate fix, and even commit to returning Monday morning to provide additional services needed. Danny was friendly, informative, professional and FAST! I am thankful I called Oasis for my immediate heating needs and that Danny was the technician who arrived. Top notch service! Highly recommend.

Megan R.

I had a great experience with Oasis. Our furnace had issues on Thursday night and Oasis came at 7am the next morning, and we found out we needed a new one. They provided all the necessary information to our condo building so we could get an emergency replacement on Saturday morning. Within 36 hours we had a brand new furnace and the installation team did a great job communicating on their work and how to use the furnace. The owner, Mike, and his team are great and I really appreciated the attention they gave to this matter. I would highly recommend and will only go to them in the future.

Shane H.

Oasis is great! My furnace is almost 30 years old and for a reasonable price they were able to do the repairs. First Danny came to evaluate. He showed me what was wrong. They had to order the necessary parts to fix it. Today Hani and Fernando came to do the repair. They were efficient and courteous. I will definitely use Oasis in the future.

Emily H.

Oasis has always been great to work with and their staff are quick and efficient if issues arise. When our air conditioning broke down during the heat of the summer, they provided a quick replacement at a competitive price. Their staff are always extremely kind, respectful, and knowledgeable.

Sam C.
Arlene Bunis
21 hours ago
I have been an Oasis customer (and fan) for over 20 years! I have only experienced the BEST service and professional care for all these years - their staff is excellent (and everyone has been there a long time so my experts keep coming back year after year). I feel known by their staff which gives me great peace of mind when they arrive to do a job…I know it will be done correctly, thoroughly, quickly, promptly and efficiently - and with a warmth and kindness that leaves me smiling. The consistency is so appreciated. I would never use anyone else!
Response from the owner:Thank you, Arlene, for being such a loyal customer for over 20 years and for your kind words about our staff and service; we truly appreciate your trust and support!
Frank Dziubak
22 hours ago
They did a great job installing my smart thermostat. I am very happy with it.
Response from the owner:Thank you, Frank! We're glad to hear you’re happy with your smart thermostat installation. Your satisfaction means a lot to us!
David Rudd
1 day ago
Absolutely fantastic and professional experience, always!
Response from the owner:Thank you so much for taking the time to leave an excellent rating for our Oasis Team!
Franck Brice
1 day ago
Service is friendly, prompt and clear. No hard sales tactics - factual assessment and right work is done and is done well.
Response from the owner:Thank you, Franck, for taking the time to leave a review. Your feedback is appreciated!
Joelle Pyle
2 days ago
Oasis was very quick to respond and help me with my issue. The technician was incredibly helpful.
ken gasper
2 days ago
Been providing by my hvac maintenance for 10+years. Always been communicative, good pricing, and their guys are the best
Response from the owner:As always, we are more than happy to help, Ken! We love our long time clients, and look forward to maintaining your unit for years to come.
Alex Mathai
2 days ago
Berina Gradjan
3 days ago
Phenomenal service!
Jill Wachholz
3 days ago
Damir is professional, calm, and provided useful information after he conducted my yearly furnace check-up. He and others from Oasis installed the unit 8 years ago. I appreciate the continuity and his vast experience.
Response from the owner:Thank you, Jill! We're glad to hear that Damir's professionalism and expertise made a positive impact during your furnace check-up. We appreciate your continued trust in our services over the years.
L Z
3 days ago
Great service! They came out quickly to replace my water heater and Steve and Amer went out of their way to fix a badly placed shutoff valve in a tight closet. I use Oasis for my HVAC too because they are willing to service the rooftop a/c.
Response from the owner:Thank you, L! We're glad to hear you were pleased with our service and that Steve and Amer were able to assist you with the shutoff valve. We appreciate your trust in Oasis for both your water heater and HVAC needs!
Allen Mary
3 days ago
Diagnosed issue yesterday, fixed today!
Response from the owner:Thank you, Allen! We're glad to hear that we could diagnose and fix the issue quickly for you. Your satisfaction means a lot to us!
Stephen Hnatow
3 days ago
Response from the owner:Thank you, Stephen, for taking the time to leave a review. We appreciate your feedback!
Susan Pachera
3 days ago
Furnace service: Mark was great- friendly and efficient. Called before my appointment window and gave me the specific time he would arrive, which I appreciated. AC service: Joseph was very friendly and efficient. He kept me updated on the work he was doing. I’ve used Oasis for years and am always impressed with their professionalism. Very reasonable prices on the HVAC services. Prior review:The work was done quickly and plumber was nice but quite expensive for a short job so I’ll go back to my previous plumber
Response from the owner:Thank you, Susan, for your feedback! We're glad to hear the work was done quickly and that you found the plumber nice, and we appreciate your honesty about the cost. We hope to still work with you for all your HVAC needs!
Adrienne Eynon
3 days ago
On time, friendly, knowledgeable, professional, honest
Response from the owner:Thank you, Adrienne! We appreciate your kind words about our team's professionalism and friendliness. Your feedback means a lot to us!
jane ramsey
4 days ago
The OASIS team was fabulous in resolving our emergency and quickly installing a needed new compressor. The compressor was damaged when other workmen were working on a separate system at our house. We were imminently leaving the country. We urgently called Oasis. Mike quickly identified a new unit, ordered it and had it installed the next day. The installation team including Michael and others were so easy to work with and did a great job. THANK YOU, OASIS! Now we can leave the country for our trip with peace of mind! We will always trust you with our system needs! And when we needed them again this week, they were out immediately and addressed out needs. Thank you, Oasis! Much appreciated.
Response from the owner:Thank you, Jane! We're so glad to hear that our team was able to quickly resolve your emergency and get you ready for your trip. It's great to know that Mike, Michael, and the installation team provided you with excellent service. We appreciate your trust in us for your system needs!
Friendly. Helpful. Fast. Accommodating. Would highly recommend!
Response from the owner:Thank you, Derek! We appreciate your kind words and are glad to hear you had a positive experience. Your recommendation means a lot to us!
Steve Biernacki
4 days ago
Timely arrival for service appointment and thorough furnace inspection.
Response from the owner:Thank you, Steve, for your feedback! We're glad to hear that you had a timely service appointment and a thorough furnace inspection. Your satisfaction is important to us!
Brenda Winstead
4 days ago
Great service, friendly, easy to schedule. Found a blockage in our chimney that we never would have noticed and could have been a major health concern if not addressed. Thanks!
Response from the owner:Thank you, Brenda! We're glad you found our service helpful and friendly. It's great to hear that we could catch that blockage in your chimney. Your safety is important to us!
Ruby Basra
4 days ago
Excellent tech … punctual, polite, and efficient
Response from the owner:Thank you, Ruby! We're glad to hear you had a great experience with our tech team. Your feedback about their punctuality, politeness, and efficiency is much appreciated!
Robert O'Neill
4 days ago
I teamed up with Oasis for a furnace replacement in Chicago. Their process was great. The bidding process was fair, the scheduling & install was quick and their work was high quality. I highly recommend using Oasis for your HVAC needs.
Response from the owner:Thank you, Robert! We appreciate your positive feedback and are glad to hear that you had a great experience with our team during your furnace replacement. Your recommendation means a lot to us!
Dawn Biernacki
4 days ago
Mark was great!!!! Highly recommend.
Response from the owner:Thank you, Dawn! We're so glad to hear that you had a great experience with Mark. Your recommendation means a lot to us!
J Andrews
5 days ago
Response from the owner:Thank you, J, for taking the time to leave a review! We appreciate your support.
Online booking was super easy and the technician was actually on time. He even taught me a couple of helpful tips while he was here. First time using Oasis and I would be willing to hire them again.
Response from the owner:Thank you, Mitchell! We're glad to hear that you found our online booking easy and that our technician provided helpful tips during your visit. We appreciate your willingness to hire us again and look forward to serving you in the future!
Susan Meyer
5 days ago
UPDATE REVIEW: Josh, the company manager, called, and we discussed the work done. I am receiving a new invoice with the correct tankless water heater information and labor warranty. I paid $7,000 for a new Navien tankless. It replaced my old Noritz tankless. I didn't have hot water for 5 days, so I felt compelled to get the work done (enter whining kids). Normally, I would ask a few more companies for estimates for this type of job. I feel he listened to me, but $7,000 is on the very high end, even though he said it wasn't. The 3/4 gas line was not replaced, and the condensation drains into my existing electric condenser. Alas, lesson learned: go without to get a reasonable price, and don't listen to whining kids about no hot water!! FIRST REVIEW: I'm still waiting for the owner to contact me about my tankless water heater installation.
Response from the owner:Thank you for your update, Susan. I appreciate you sharing your experience and I’m glad to hear that Josh was able to address your concerns regarding the invoice and installation. Your feedback about pricing and the installation details is valuable, and we will take it into consideration as we strive to improve. If you have any further questions or need additional assistance, feel free to reach out via text or call.
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$99 Drain Clearing

Restore Proper Flow With Expert Drain Service.

Drain clearing offer valid for one residential drain. Additional charges may apply for main line stoppages, difficult access, multiple drains, or additional services. Repairs not included. Cannot be combined with other offers.

Use By
10/31/2026
Same Day Service

Get Back To Comfort Faster With Professional Installation.

Same-day and next-day installation subject to equipment availability and scheduling. Not all systems or installations qualify. Additional charges may apply. Residential customers only.

Use By
10/31/2026
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Chicago, IL