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Ductless HVAC Repair in Chicago, IL: Expert Service from Oasis Plumbing, Heating & Cooling

When your ductless HVAC system breaks down, you need a reliable and experienced team to get it back up and running quickly. At Oasis Plumbing, Heating & Cooling, we have been serving our customers in Chicago and the Northern Suburbs for over 20 years, providing expert ductless HVAC repair services. Our highly-trained technicians are equipped with the knowledge and tools necessary to diagnose and fix any issues with your ductless system, ensuring your comfort and peace of mind.

Common Ductless HVAC Issues We Repair

Ductless HVAC systems, also known as mini-split systems, are becoming increasingly popular in Chicago homes and businesses due to their energy efficiency and flexibility. However, like any HVAC system, they can experience problems that require professional repair. Some of the most common issues we encounter include:

  • Refrigerant leaks: Low refrigerant levels can cause your system to lose cooling capacity and efficiency.
  • Electrical problems: Faulty wiring, loose connections, or malfunctioning components can lead to system failures.
  • Clogged air filters: Dirty or clogged air filters can restrict airflow and cause your system to work harder than necessary.
  • Frozen evaporator coils: When the evaporator coils freeze, your system will not be able to cool your space effectively.
  • Malfunctioning thermostats: A faulty thermostat can cause your system to cycle on and off frequently or fail to maintain the desired temperature.

Our experienced technicians are well-versed in diagnosing and repairing these and other issues, ensuring that your ductless HVAC system is running at peak performance.

The Oasis Plumbing, Heating & Cooling Difference

Since 1997, Oasis Plumbing, Heating & Cooling has delivered quality customer service, reliability, and expertise in heating, cooling, and ventilation to our residential and commercial clients. Our commitment to excellence sets us apart from other HVAC companies in the Chicago area:

  1. Highly-trained technicians: Our technicians undergo rigorous training and continuous education to stay up-to-date with the latest ductless HVAC technologies and repair techniques.
  2. Fast response times: We understand that HVAC emergencies can happen at any time, which is why we offer prompt service to minimize your discomfort and inconvenience.
  3. Comprehensive services: In addition to ductless HVAC repair, we offer a full range of HVAC services, including installation, maintenance, and replacement.
  4. Customized solutions: Our responsive support staff works closely with you to develop customized solutions that fit your unique needs and budget.

Preventative Maintenance for Your Ductless HVAC System

Regular maintenance is crucial to keeping your ductless HVAC system running efficiently and preventing costly repairs. At Oasis Plumbing, Heating & Cooling, we offer comprehensive maintenance plans designed to optimize your system’s performance and extend its lifespan. During a maintenance visit, our technicians will:

– Clean and inspect the indoor and outdoor units
– Check and calibrate the thermostat
– Test the system’s electrical components
– Clean or replace air filters
– Inspect and clean the evaporator and condenser coils
– Check and refill refrigerant levels, if necessary

By scheduling regular maintenance with Oasis Plumbing, Heating & Cooling, you can enjoy a more comfortable indoor environment, lower energy bills, and fewer breakdowns.

Trust Oasis Plumbing, Heating & Cooling for Your Ductless HVAC Repair Needs

When you choose Oasis Plumbing, Heating & Cooling for your ductless HVAC repair needs in Chicago, you can trust that you are working with a team of experienced professionals who are dedicated to your comfort and satisfaction. With over 20 years of experience serving the Chicago area, we have the expertise and resources necessary to handle any ductless HVAC repair challenge.

Don’t let a malfunctioning ductless HVAC system disrupt your comfort. Contact Oasis Plumbing, Heating & Cooling today to schedule your repair service and experience the difference our expert technicians can make in your home or business.

Ductless Split Installation, Ductless HVAC & Ductless Mini Split in Chicago, IL

Ductless Air Conditioning in Chicago, IL | Ductless Split Installation

Ductless Heating ∴ Ductless Air Conditioning ∴ 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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Featured Five-Star
Customer Reviews

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.

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.

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.

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.

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.

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.

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.
Berina Gradjan
9 hours ago
Phenomenal service!
Jill Wachholz
14 hours 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
15 hours 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
16 hours 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
16 hours ago
Response from the owner:Thank you, Stephen, for taking the time to leave a review. We appreciate your feedback!
Susan Pachera
19 hours 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
20 hours 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
1 day 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
2 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
2 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
2 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
2 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
2 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
3 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
3 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.
Juliette Jardim
4 days ago
Great experience, serviced my boiler and showed me how to clean the filters in my mini splits. Highly recommend!
Response from the owner:Thank you, Juliette! We're glad you had a great experience with the boiler service and found the filter cleaning tips helpful. Your recommendation means a lot to us!
Response from the owner:Thank you, Stephanie! We appreciate your support and look forward to serving you again.
Andrew Hayworth
6 days ago
Response from the owner:Thank you, Andrew, for taking the time to leave a review. We appreciate your support!
Katrina Ta
6 days ago
Mike responded quickly and luckily was nearby so came over pretty fast as well. He was off the clock but still came because I wouldn’t have heat on that cold winter night if my furnace didn’t get fixed. He also explained what went wrong and gave me some tips in case a similar situation occurs in the future. Was reasonably priced as he didn’t charge for the new fuse, overtime, etc. Will definitely use Oasis again for future HVAC needs! Oct 2026: Update - Oasis continues to be my HVAC company, they also do biannual HVAC maintenance for our mid-rise building, and is the company who provides services to all our residents. Naem is usually the person who comes for services and he’s very knowledgeable, helpful, and professional. Everyone who has been here were nothing short of polite and respectful. I will be using Oasis’ services indefinitely! Thank you to such a wonderful team!
Response from the owner:Thank you, Katrina, for your wonderful review! We're glad Mike was able to assist you quickly and provide valuable insights. Your support means a lot, and we look forward to helping you with your future HVAC needs!
Zainab Osman
7 days ago
Great and clean installation
Response from the owner:Thank you, Zainab, for your kind words about the installation! We're glad to hear you found it great and clean. Your feedback means a lot to us!
Ted Devlin
7 days ago
They have replaced both my original AC and furnace over the years and kept them in tip top shape. Workers are always on time for maintenance and the few issues I had with pressure switches in my Rheem furnace. Highly recommend.
Response from the owner:Thank you, Ted! We appreciate your trust in us for your AC and furnace needs and are glad to hear about your positive experiences with our team. Your recommendation means a lot to us!
Colleen Olsen
7 days ago
Very professional and efficient
Response from the owner:Thank you, Colleen! We appreciate your kind words about our professionalism and efficiency.
MJM Moore
1 week ago
Joseph was great. On time. Super nice. Serviced everything as asked!
Response from the owner:Thank you, Mjm! We're glad to hear that Joseph provided great service and met your expectations. We appreciate your feedback!
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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
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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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