Ductless HVAC Replacement in Skokie, IL

Oasis Plumbing, Heating & Cooling Offers Seasonal Maintenance Plans

Understanding When Your Ductless System Needs Replacement

When you’ve relied on your ductless HVAC system to keep your Skokie home comfortable through sweltering summers and frigid winters, recognizing the signs that indicate replacement time has arrived becomes essential for maintaining indoor comfort. Ductless systems, also known as mini-split systems, typically provide reliable service for 15 to 20 years when properly maintained. However, several indicators suggest that replacement rather than repair makes the most financial and practical sense. If your system requires frequent repairs, especially if those repairs exceed 50% of replacement costs, investing in new equipment becomes the smarter choice. Rising energy bills despite regular maintenance often signal declining efficiency as internal components wear down and struggle to maintain desired temperatures.

At Oasis Plumbing, Heating & Cooling, we’ve been serving our customers in Chicago and the Northern Suburbs for over 20 years, giving us extensive experience identifying when ductless systems have reached the end of their useful life. Strange noises like grinding, squealing, or rattling indicate serious internal issues that often make replacement more cost-effective than extensive repairs. Additionally, if your system uses R-22 refrigerant, which has been phased out due to environmental concerns, replacement becomes necessary as this refrigerant becomes increasingly scarce and expensive. Inconsistent temperatures between zones, excessive humidity despite proper operation, and visible refrigerant leaks around connections all point toward system failure that warrants complete replacement.

Benefits of Modern Ductless Technology

Today’s ductless HVAC systems represent significant technological advancement compared to models installed even ten years ago. Energy efficiency ratings have improved dramatically, with modern systems achieving SEER ratings exceeding 20 and heating seasonal performance factors above 10. These improvements translate directly into lower monthly utility bills, often reducing energy consumption by 30 to 40 percent compared to older systems. Variable-speed compressor technology allows modern units to adjust output precisely to match heating and cooling demands, eliminating the energy waste associated with constant on-off cycling found in older single-speed systems.

Smart technology integration transforms how homeowners interact with their comfort systems. WiFi-enabled controls allow temperature adjustments from anywhere using smartphone applications, while advanced sensors detect occupancy patterns and automatically adjust settings for optimal efficiency. Since 1997, Oasis Plumbing, Heating & Cooling & Cooling has delivered quality customer service, reliability, and expertise in heating, cooling, and ventilation to our residential and commercial clients. We’ve witnessed firsthand how these technological improvements enhance both comfort and convenience. Modern systems also operate much more quietly than their predecessors, with indoor units producing sound levels comparable to a whisper, typically measuring between 19 and 25 decibels during normal operation.

The Replacement Process We Follow

Professional ductless HVAC replacement involves multiple steps that ensure optimal system performance and longevity. Our initial assessment examines your existing system configuration, evaluating factors like indoor unit placement, refrigerant line routing, electrical connections, and outdoor unit positioning. We perform detailed load calculations specific to your Skokie home, considering factors such as square footage, insulation levels, window placement, and typical occupancy patterns. This analysis determines the appropriate system capacity for each zone, preventing the efficiency losses and comfort issues associated with improperly sized equipment.

Complete system removal: We carefully disconnect and remove old indoor and outdoor units, properly recovering refrigerant according to EPA regulations
Infrastructure updates: We inspect and upgrade electrical connections, install new refrigerant lines when necessary, and ensure proper drainage for condensate removal
Precision installation: We mount new indoor units using manufacturer specifications, connect refrigerant lines with proper insulation, and position outdoor units for optimal airflow and service access

After physical installation, our highly-trained technicians perform comprehensive system commissioning. This includes evacuating refrigerant lines to remove moisture and air, charging the system with the precise refrigerant quantity specified by manufacturers, and verifying proper communication between indoor and outdoor units. We test heating and cooling operation in each zone, confirming temperature accuracy and airflow patterns meet design specifications.

Selecting the Right System for Skokie Homes

Choosing appropriate ductless equipment for Skokie’s climate requires understanding local weather patterns and how they impact HVAC performance. Winter temperatures regularly drop below zero, demanding robust heating capacity even at extreme conditions. Summer brings high humidity along with temperatures exceeding 90 degrees, necessitating strong dehumidification capabilities alongside cooling power. Multi-zone systems offer flexibility for homes with varying comfort needs across different areas, allowing independent temperature control in bedrooms, living spaces, and home offices.

Equipment selection involves evaluating multiple factors beyond basic heating and cooling capacity. Inverter technology provides superior temperature control and energy efficiency compared to conventional systems, while hyper-heat models maintain full heating capacity even when outdoor temperatures plummet to negative 13 degrees Fahrenheit. For Skokie homeowners concerned about air quality, systems with advanced filtration capture particles as small as 0.3 microns, removing allergens, dust, and other airborne contaminants. Our responsive support staff offers customized solutions to fit your budget, helping you balance initial investment against long-term operating costs and comfort benefits.

Maximizing Efficiency and Longevity

Proper installation techniques significantly impact system performance and lifespan. Refrigerant line length and elevation differences between indoor and outdoor units must fall within manufacturer specifications to ensure efficient operation and prevent compressor strain. Electrical connections require dedicated circuits with appropriate amperage ratings and disconnect switches positioned for safe service access. Condensate drainage needs proper slope and trap installation to prevent water damage and ensure reliable moisture removal during cooling operation.

Post-installation practices determine whether your new ductless system delivers expected efficiency and reliability. Regular filter cleaning, typically monthly during peak usage seasons, maintains proper airflow and prevents dust accumulation on internal components. Annual professional maintenance includes coil cleaning, refrigerant charge verification, electrical connection inspection, and performance testing across all operating modes. Keeping outdoor units clear of debris, maintaining two feet of clearance around all sides, and protecting units from snow accumulation during winter prevents airflow restrictions that reduce efficiency and accelerate component wear.

Investment Considerations and Long-Term Value

Ductless HVAC replacement represents a significant home improvement investment that delivers returns through multiple channels. Energy savings typically offset a substantial portion of installation costs within five to seven years, while improved comfort and zone control enhance daily living quality immediately. Modern systems’ reliability reduces unexpected repair expenses and emergency service calls that disrupt household routines and budgets. Additionally, updated HVAC equipment increases property value, particularly in Skokie’s competitive real estate market where energy efficiency and modern amenities influence buyer decisions.

Financial incentives further improve replacement economics. Utility companies often provide rebates for high-efficiency equipment installation, while federal tax credits may apply to systems meeting specific efficiency thresholds. Financing options spread costs over time, allowing immediate comfort improvements while managing budget impacts. When evaluating replacement timing, consider that waiting until complete system failure eliminates the ability to research options thoroughly and may result in rushed decisions or temporary discomfort during installation scheduling. Planned replacement allows careful equipment selection, convenient scheduling, and potential off-season pricing advantages when contractor demand decreases.

Ductless HVAC Replacement in Skokie, IL

Ductless HVAC Replacement ∴ Skokie, IL

Featured Five-Star

Customer Reviews

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.

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.

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 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 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.

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.

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.

Excellent

Oasis Heating and Cooling4.9

Based on 1055 reviews

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Bogdan Adrian Toma

1 day ago

Bad business model. Their approach is: your heater's issue is so bad, it's unsolvable by just getting the one part that's faulty right now. Even if we were to get it and replace it, there might be underlying issues which we can't account for. It's better to just get a new furnace, and if you don't have the money, you can address the so-and-so bank and get credit, they're good people. If we were to translate this model into auto-repair, it'd be like: we could change your tire, but what you really need is a new car. Or - translated in medicine: we could fix your husband's kidney, but how about you get a new husband altogether?

Of course the person that oversaw my furnace this morning was like a witch doctor. Didn't even take the screen off, just turned on the thermostat and listened, then went: "oh, it's so bad it's crazy, the blower motor's gone" and hurried to send me an email estimate of the products they're selling and installing. When all this is happening so quickly, you just know something's wrong. What's wrong is that you brought in and accepted a charge from someone who had no intention of doing any work in the first place, plus they had a ready-made reason to explain your furnace's deficiency without even looking at it. That, in my book, is a scam. It's like paying to bring a store vendor into your house and having them tell you: well, I don't know how to fix this, but we definitely have a replacement in the store. How one can call this "providing a service" is beyond me.

So the firm representative collected a $165 service fee for no service, and to prevent any arguing that there's no service, took the lid off and inserted the screwdriver into the inducer motor to show that it's not rotating. I ended up bringing someone else in, and luckily that person wanted to actually work and get paid for the work, so he replaced the faulty part (which was NOT the blower motor). In a nutshell, my belief about Oasis is that it's filled with people who can only do whole unit replacements rather than actual service. So, next to overpricing, you've got lesser qualifications and false advertising. In an idiomatic sentence, here goes my two cents and 165 bucks.

P.S I won't dispute the demeanor of the representative, he was very courteous and explanatory, except not related to the issue at hand, but merely to the matter of selling a product. I've got no way to verify this, but I bet some of the positive reviews present here were written in exchange for some sort of a discount.

David Lennie

2 days ago

Update: Used Oasis a second time for a completely different problem, and they were equally as excellent as the first time. On time, great communication, thorough, experts in anything HVAC-related. This time, we’d discovered that our developer botched the install of our whole-house humidifier, and Oasis saved the day by properly installing a new one only a couple of days after first discovering the problem. Our days of brutally cracked skin and loose floor boards are now behind us! Thanks again, Oasis team!

When we turned on our central air this season, it didn’t seem to be working at all — it would say it was running but either the air coming out wasn’t cooled or there wasn’t any air coming out at all.

We subscribe to competing company’s monthly maintenance program for our HVAC and plumbing, and they’d tested and passed our unit only a month earlier. I had them come back and they diagnosed the problem as a likely refrigerant leak — they explained how they’d go about fixing it and the cost to repair but highly encouraged us instead to buy a whole new system from them — repair cost ~$2500, replacement cost <$10000!

I decided to get a second quote and found Oasis. I liked that they specialize in heating/cooling, and their refrigerant leak repair process sounded much more thorough and was quoted for about the same as the other company. So I went with Oasis because they gave me more confidence that they could fully fix the problem.

They were available within days. The morning of the service, they called to say that they’d had a bunch of their technicians call in sick so they’d be 2 hours later, which was fine — I was just happy that they gave me the heads up so early in the day. They arrived on time at the later time and spent 2 hours testing, locating, and repairing the refrigerant leak. They were incredibly professional and thorough and our HVAC is back to 100% working order. As an added bonus, they gave us a discount because they’d had to arrive 2 hours later than originally planned!

Excellent service and communication across the board. They deserve all of their 5-star reviews!

Response from the owner:Thank you so much, David! We know your appointment did not go as smoothly as we would have liked, because when it rains, it pours, but you were so understanding and we appreciate it so incredibly much! Thank you for the amazing review, and we hope to come help maintain your system next year. And right on time, too!

Erin W

3 days ago

Unfortunately we had a terrible experience with them. While the technicians were friendly, they did not fix our issue, 3 days and a dangerous gas leak later, we finally had our heat back. In between this mess the owner didn’t even return our calls and no apology when we had to take our kids out of the house for the night. It was during the bitter cold weekend and had to buy space heaters, and then were charged a huge amount for their mistake. I would not recommend if you have an older boiler or unit. I think the lack of experience showed.

Response from the owner:You must be kidding me.
Totally disagree with your statement.
We tried to help you saving your old boiler with minimum charge.
We lost money on this call, but it wasn’t about money.
It was brutally cold and our job is to help people in those situations.
It’s not lack of experience.Its lack of trying to fix something old..We were responding on every your call and making sure that the boiler is fixed.
We came on Sunday and next day after hours in attempt to fix it.You were informed on Sunday that we don’t have that part and the stores are closed .
We never intended to let you down.
Thank you for one star review .
It’s time to replace that boiler.

Richard Anderson

4 days ago

Joseph was great.

John King

1 week ago

Danny and team were fantastic. I had them install two new variable speed furnaces and a zoning system. It was a little complicated of an install so did have some initial issues, but the team came back as many times as needed to ensure the system was working for us. We are now living in much more comfort than before, and at a very competitive price. We received multiple bids, but wanted to go with Oasis due to Danny's excellent ideas and explanations during the estimate walkthrough. Oasis also came in with the most competitive price so it was an easy decision. Highly recommend Danny and the rest of the Oasis team.

David Somogyi

Joseph was quick and professional

Gerald Harris

Joseph was excellent service technician and will want him to assist us again!! 00pm

Chad Osborne

Our unit was having trouble keeping up with the sub-zero temperatures. Damir was excellent. He adjusted the airflow and recommended a different filter. Problem solved.

Elizabeth M

2 weeks ago

He didn't believe me when told him its blowing cold air. He stood there hand on the vent trying to convince us it's getting hot. It's lukewarm at best. Waste of money. $165 down the drain. That should be illegal. Didn't suggest a part replacement. Only suggested to buy a $6000 new furnace. It's short cycling that's not a broken furnace that's new parts wear and tear situation. I will never recommend Oasis to anyone.

Nancy Levin

What a great experience: replaced the hot water heater, sump pumps - going above and beyond with their care and attention to the issues I hadn't even noticed. Very easy to work with.

MatthewJN

We hit furnace trouble on one of the coldest days of the year, and Oasis still got us in the same day—on-site within two hours of my call. Naem was our technician and was fantastic: kind, quick to diagnose, and had the heat running again in under 30 minutes. They also installed our rooftop A/C and did an excellent job. We’re really grateful for the whole Oasis team and their great service. Highly recommend them to anyone in Chicagoland.

Michael Berman

I know I can always count on Oasis when I have a problem! Joseph came out and was helpful and efficient fixing our furnace, which is more important than ever during the dead of winter! He even helped fix a closet door that helps keep the furnace shielded from my kids. Really grateful to Joseph and the entire Oasis team for another successful visit!

pawan nadkarni

Fantastic job by Fernando! On the coldest day of the year, he was able to come by within the hour and fix our furnace! Thank you!

Garrett Fenley

Joseph was quick and efficient on getting my heat back in order. He explained everything well and went above and beyond

Chiara Levato

I found Oasis through many recommendations by neighbors in our neighborhood facebook group. I’d highly recommend their service as well! Joseph was very professional and knowledgeable. He was very thorough when explaining the issue at hand and made it clear what should be done to address it. We will be using Oasis for our next service for sure! Thank you!

Andria Hernandez

Joseph did a great job servicing my furnace and explaining how everything works. He was timely, efficient, and clean. 10/10 would recommend!

Heather Cuff

Thankful that Joseph was able to come out so promptly and ensure all was working well with our system. It was just the reassurance we needed going into this cold spell!

Robert Milchling

Joseph and Michael and team did a great job replacing my furnace. Very professional and cleaned up well after

Robert Mays

Our heat stopped working on a day where the wind chill was below zero. I called, and the company sent someone out within the hour. Our technician Fernando was efficient, transparent, and fixed our issue very quickly for a reasonable cost. We've had very good experiences with Oasis across the board.

Robert Leung

Great and fast service. Got our new heater working during the freezing cold weather.

Nic Meyer

Excellent, fast service by Fernando on a bitter cold Sunday. He addressed our issue quickly and charged us the fee he stated on the phone, which was one of the better prices we found. Will be calling them again.

Joanna Clark

3 weeks ago

Our heat went out mid winter. Oasis sent someone out to diagnose the problem and replace the furnace the very next day. Everyone from their team was super kind and helpful. Fernando and Joseph did the install. They were fast, friendly, and explained everything to me to make sure I knew what was going on.

Joseph Discipio

4 weeks ago

Joseph was honest and quick. Thank you!

Brandon Jordan

1 month ago

Joseph, Damir, and Amir did an amazing job. The staff was on time knowledgeable and completed the full furnace replacement in 4.5 hours. They told me all about the unit and explain everything i needed to know. Will definitely use them in the future.

Sydney Dusel

Tech and installation members were friendly, knowledgeable, and efficient. The company is extremely easy to reach / provides fair pricing. Our heat went out on 12/30 and someone was out here the next morning on New Years Eve to check it out. Highly recommend for maintenance and repairs!

Jon Heise

Joseph did a great job. Knowledgeable and fast!

Carson Heims

Joseph we extremely helpful and gave an in depth explanation of the systems/issues

Jennifer Geiman

Team Amir was great! Stayed til everything worked even the day after Xmas. Couldn't recommend them enough.

Joe Davis

Damir, Mark, Joseph, Vaha & Anel installed our new HVAC system and we’re all so profesional and polite! It was a big job and it got done really quickly and felt like they were barely here. We also had duct cleaning which was very though, and Chris did some plumbing and did a fantastic job.

Really blown away by the whole company including Marc the owner who did our quote for the whole thing. Will use for all my hvac needs going forward

Ricky Tang

we have been using Oasis for more than 10 years. they replaced our furnace and AC unit through those years. we have never had any problem with heating or cooling since then. Oasis technicians and managers are courteous and knowledgeable. like today, Joseph, spent extra time to show us how our furnace works and the internal safety features that it has. we really appreciate that!

Parm Purewal

2 months ago

Great experience with Oasis Heating & Cooling. Damir was on time, friendly, and extremely thorough. My furnace needed to be replaced, and he took the time to explain everything clearly while sharing thoughtful maintenance tips, the kind a caring father would give to make sure you’re set up for the long run. He made the whole process easy and stress-free. Highly recommend Damir and Oasis Heating & Cooling.

Rach Ski

Oasis was the quickest to be able to get to us when our heat went out at 9 pm on the coldest day of the year. Fernando and Michael were out the next day with a new unit and went above and beyond! When noticing how bad the a/c unit was with corrosion and mold they were able to replace that as well, timely, and all for a fair price! They were on time, professional, quick, and skillful-thank you!

Sam Hammett

Oasis always delivers! After doing repair work on our AC last year - because the company that did the install wouldn’t return our calls for service - we knew they were the right call for our furnace!

Our furnace motor went out a few days ago - during the winter/a week before Christmas! What a nightmare. Oasis was able to come out first thing the next morning without charging us for an emergency call! Naheem was our repair tech and within 15 minutes he diagnosed the problem and gave us a couple of options with cost estimates. He provided his professional opinion and it felt genuine and unlike a sales pitch!

2 days later, Serge and Harvey came to replace our furnace! They were incredibly kind, respectful and efficient - arriving on time and finishing within the estimated time window. At the end, they did a walkthrough of the new furnace, answered questions about the filters, and even took time to re-affix and correct the settings on our Nest thermostat (that we fully messed up before calling them).

So grateful to find service we can trust!

nicole underhill

Update: I continue to use Oasis for ongoing maintenance and repair. This year Joseph came out for the annual check in. He was very professional, went over the system and helped me to better heat my home for the winter. Thank you!

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.

Response from the owner:Thank you for the fantastic review Nicole! We loved being of service to you and hope we can assist you again soon.

Anne Rodas

Joseph did a great job!

Wtf

Mike came out very late after another company cancelled on me last minute and left me without heat during a brutal cold spell. Mike was able to fix the issue pretty quickly and we soon had heat back. Excellent service, thank you!

Aviva Waldman

Joseph was great! He helped explain to me what was wrong with my furnace and what my options were.

Sabrina Severns

Joseph was quick and efficient!

Patrice

Well, had Oasis out in November for a new furnace and today for a hot water heater that died (and leaked). They are always responsive and Chris did a great job answering my questions. I didn't realize they have a licensed plumber on staff to do this work. Very helpful!

Zach Kennedy

Great service from Joseph! Diagnosed the issue and was very transparent throughout the whole visit.

Ethan York

Easy and courteous. Joseph was efficient and did a great job explaining my furnace system to me and any issues he identified and how to avoid potential issues. Was very satisfied with Oasis.

A Ho

This company is incredibly responsive and professional. They installed two new furnaces and AC units in 2021 in our home. This wasn’t the easiest with one of the furnaces in the attic. They did an excellent job and the units have been working really well. Today, they did some maintenance service on the furnaces and again were friendly, super helpful and very knowledgeable. This is a great company to work with!

Just an update, 12/9/25. We had the units serviced today and Joseph was great. He texted before he arrived allowing me time to put the dogs in kitchen. He was right on time, quick and efficient, and he communicated really well. Plus, he answered all my questions. Really like this company!

Response from the owner:Thank you for your wonderful feedback! We're glad to hear about your positive experiences with our team and that the installations and maintenance went smoothly. Your support means a lot to us!

Jon _

Fernando and Michael did a fantastic job with the removal and install of our new furnace. Had some helpful tips on operation and maintenance of the new system. Would likely recommend. Very professional and courteous. Great work!

Lisa Uehara

I’ve used Oasis for years and they are very timely and professional

Curtis Malasky

Hi bought a high efficiency furnace from Oasis in 2021. Since then I've had one service call that went great. Today I can home from a trip to find a house without heat. It was snowstorm season, and the crew were very busy, but in lieu of a service call, they were able to walk me through a very easy solution which worked great. They've always been very prompt and skilled. *****

Mark Humphries

Rolled with the punches. They were able to replace my water heater that was practically blocked in by my furnace, and kept me well informed along the way as new obstacles popped up. Much appreciation for they're plumber and the HVAC guy for getting it done and putting out some fires along the way

Melissa W

Simply the best. These guys have been helping me for years. They are not only excellent at what they do, they are totally trustworthy. I would not hesitate to hire them. They do my biannual servicing and help when I have issues which has been fairly often. Can’t recommend them highly enough!

Jason Benacka

We called Oasis on a Saturday when our furnace went out and they were able to come out within 2 hours. Joseph was great, quickly assessed our problem and explained the repairs. He was thorough and got our heat back up and running

miguel ortiz

Very quick and about 5000 cheaper than the first estimate. Fernando was good

Natalie Z

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