Maintenance Plans

Oasis Plumbing, Heating & Cooling Offers Seasonal Maintenance Plans

Learn More Today

Oasis Plumbing, Heating & Cooling Energy Savings Program 30 Point Maintenance Plans

30 Point Furnace Maintenance

Inspect entire furnace for safety issues
Inspect heat exchanger and vacuum out minor rust deposits
Pull Blower assembly or inspect the blower wheel and motor
Visual inspection of evaporator coil
Inspect and clean burners
Vacuum out minor rust around burners
Check ignition controls
Clean flame sensor
Measure temperature rise
Measure blower amps
Check blower capacitor
Inspect flue pipe
Test main limit switch
Test flame rollout switches
Test all Safety controls
Test gas valve operation
Check gas connections at furnace
Check and adjust gas valve pressure (if necessary)
Test fan control
Test door switch
Check and tighten all electrical connections
Check and tighten low voltage connections
Measure high voltage to furnace
Test inducer assembly
Test pressure switch
Check thermostat operation
Inspect ductwork
Replace standard 1 inch pleated filter
Update inspection label
Clean up after completion of tune-up

30 Point Air Conditioning Maintenance

Inspect entire air conditioning system for safety issues
Inspect blower assembly, inspect the blower wheel and motor
Check blower capacitor
Measure blower amps
Inspect heat exchanger
Inspect evaporator coil
Check refrigerant charge
Tighten all refrigerant service valve caps and covers
Inspect condenser coil
Clean out debris from bottom of condenser
Inspect fan blade
Flush condensate drain line
Check all drain safety switches
Check condensate pump and line (if applicable)
Measure temperature difference across evaporator coil
Check low and high pressure switches
Test high voltage at disconnect and condenser
Check and tighten all electrical connections
Check and tighten all low voltage connections
Measure compressor mega ohms
Measure compressor amps
Measure fan amps
Test compressor run and start capacitors
Check compressor terminal connections
Check thermostat operation
Replace standard 1 inch pleated filter
Inspect ductwork
Inspect flue pipe
Update inspection label
Clean up after tune-up

Sign up for one of our Maintenance Plans Today

Featured Five-Star

Customer Reviews

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 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.

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.

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.

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 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.

Excellent

Oasis Heating and Cooling

4.9

Based on 600 reviews

See all reviews

review us on

Mike Clark

I’ve finally found an HVAC company I can count on! Mike and his team at Oasis have come through for me several times on short notice. I highly recommend working with them!

Loaves & Witches LLC

I am so beyond impressed with Oasis. Being a new business owner with TWO busted HVACs, it’s so stressful to find a trustworthy company to turn to. I am so grateful we went with Oasis. Daniel was incredible. He took videos and pictures to show me the issues with the machines. Daniel was in communication at every step in the process. Now sitting in our toasty cafe with Daniel and Oasis to thank!

Matt Gottesman

Had a great experience getting a humidifier replaced. Naeem, Jacob and Chris were all super helpful, answered all my questions, and went the extra mile with the installation. Would definitely recommend!

Erika Baroman

10/25/2024 edit: Two gripes I'm adding on here. I wish you can schedule online without having to wait for a reply or an email back and forth. I believe they had it at one point and then it went away.And two, I had a thermostat installation on Tuesday morning by Hani. Great service, super professional. But I didn't get a receipt emailed to me until I asked for it on Friday afternoon (because I needed it for rebate for Comed & People's Gas). And I was made to feel like I was a bother when I followed up my email with a phone call. Well, I wouldn't be emailing and calling if I got the receipt at least within the same day my credit card got charged. When I had my HVAC serviced about a month or two ago, I got the receipt within a minute of me paying. Not sure what was different this time.I’ve used Oasis for a couple of years now. They are wonderfully on time and easy to schedule with. Always very professional and makes sure to let me know about everything they see. I’ll keep on using them for the foreseeable future.

Kerry John

I arrived home on a Friday evening to find a furnace gas leak in my downstair's tenant apartment. People's Gas quickly turned off the gas, and Oasis came the next morning to investigate the problem. Given the age of the furnace I was not surprised that it needed replacement. They were able to start and finish the new installation on Monday afternoon. I really appreciated that my tenant did not have long to wait before heat was restored.

I have been using them for around 25 years and they always due a good job and at reasonable prices. They have installed all of the ACs and furnaces at our three flat

Response from the owner: Hi Denio! Thanks for sharing your Oasis experience. It means so much when our best customers share their experiences. We're really pleased to hear that you are satisfied with our services and look forward to keeping you a happy customer.Sincerely,Your Oasis Team

Rachel Garko

Jason was extremely helpful. He not only fixed our AC unit but clearly and patiently explained what was wrong. He was professional, hard working and solved all our issues! Highly recommend Oasis especially Jason.

Brian Robinson

We suddenly discovered we needed to replace our HVAC system, and Oasis was able to fit us in on short notice and at a reasonable price. They also did it during a trip that we couldn’t cancel, so they were flexible with us not being there. Great service!

Martfam

I highly recommend Oasis Heating & Air Conditioning. Everything about their process was expert level service. We had to have our entire unit replaced. The service guys Anel and Vaha did an awesome job in moving the new unit to a proper location in our backyard and installing quickly on a very hot day. Oasis gave a much better quote then other companies. I will use them for everything AC and furnace. Thank you Oasis!!!

Dimitri Venice

Thank you to Mike who sent me his three angels today on the hottest day of the year. Thank you Anel , Vaha, and Kiki. They showed up on time. These boys were very professional, polite, kind, and oh my god clean. They did such a good job. I called during the middle of a heatwave when my A/C died. Mike quoted me on Monday and Installed on Tuesday. Very affordable and have very competitive pricing. I got three other quotes, that were just outrageous compared to Oasis. The pricing was very fair, especially for this economy. When the furnace finally dies I know where I’m getting my new one. Thank you for squeezing us in, and thank you for the fantastic customer service.

Allen Dozier

Today was a very hot and busy day and Mike D (Mike Squared if he reads this) was prompt, courteous, and ran me through all I needed to know about regular maintenance. Do yourself a favor and call Oasis as everyone I interacted with was friendly and prompt and the price for service was more than reasonable.

Danielle Hasdal

I can’t say enough GREAT things about this company and their service. They sent someone same day to service our broken air conditioning unit. We are supposed to have 90+ degree weather this weekend so we really appreciated how quickly they came. Naem was SO nice, very knowledgeable, and gave us great tips to help extend the life of our unit and keep our place cool on very hot days. So happy with the service and highly recommend Oasis Heating and Cooling.

Robert Johnson

When my furnace started failing this past winter I contacted multiple HVAC contractors. Oasis was the only contract who didn't try to sell me on an immediate replacement. They cleaned the unit which got it working well enough to last another winter. They also provided a no-frills quote that the least expensive of their competitors. It felt like their priority was working with me to find the optimal solution to fit my budget.Fast-forward to this week. Oasis replaced my entire HVAC. Fernando, Mike D and Amir worked quickly and professionally. i was surprised by how smoothly everything went. I couldn't be happier.

myles walters

Oasis Heating and Cooling was responsive, quick, and extremely professional. Mike is the one to ask for when you call, he runs the team of techs there and really knows his stuff. Air flow in my home has been an issue for a while now. Oasis showed up, diagnosed the problem and got it fixed all in one day. Home A/C is way more consistent throughout now. Will definitely use Oasis for all my home Heating and Cooling needs.

Elisa Nolte

Oasis Heating and Cooling really helped us out when the very old air conditioner that came with our condo died during a heat wave. We needed a crane to get the new AC unit on our roof and, despite that, Oasis was able to schedule us to install the new AC on Monday when we called for help on Friday morning.The team who did the install was also fantastic: Fernando, Michael, and Amir. They were quick, efficient, and professional, and had our new AC up and running in no time.I would definitely use Oasis again!

Amber Dow

My AC was not working when I woke up in my home this past Saturday. I called Oasis and Damir called me soon after saying he was 20 minutes out. He arrived and took a look, and was able to diagnose the issue right away with a new capacitor. The diagnosis and work in total took about 30 minutes. Since the unit was under warranty I only had to pay for service. Damir was incredibly efficient, professional and knowledgeable as he educated me about what was going on and how he was going to fix it. The service was prompt, thorough and incredible! He had my AC back to working in no time at all!

eddye harris

Oasis accommodated a last minute request of service to my business Raise Your Glasses optical on 1345 s Michigan Ave. they were punctuall, professional, and precise. They are my choice for business and home heating and cooling.

Robert Dennis

Shehzad Hoosein

Shoshana Cooper

very good servicevery professional and effecient

Response from the owner: Thank you so much for the review, Shoshana! We have always enjoyed working with you and look forward to working with you for years to come!

Hillary Kribben

Oasis to the rescue! After my air conditioning unit went out last night, Oasis was at my door by 10 AM this morning. I was lucky enough to have had the owner of the company service my unit with unwavering professionalism, thoughtfulness, and extreme knowledge (he even took the time to explain the intricacies of the unit itself to me). I’ve been raving about this company tomy friends and family ever since he left this morning! I highly recommend this company over all of the others in the Chicagoland area. Thank you again, Oasis!

Response from the owner: I'm so glad we could help you, Hillary, and Harvi will be glad to know it too. Our customer service team is also thrilled to know you were more than satisfied with our service. Thank you so much for your review and we look forward to working with you again!

Darcy Dodd

I’ve had Oasis service my unit multiple times, and they are always communicative, prompt, and professional. They seem to take care to not overcharge and not recommend unnecessary repairs, upgrades, etc. Highly recommend.

Pinar Aral

We are very happy with Oasis services. This is our third time using them. The other times were a great experience. Recently, we needed them again as our AC was having issues. The technician Harvi was friendly, on time and knowledgable about AC unit. He identified and fixed the problem quickly. We will use them again. Thank you!

Asim M

The service was excellent, the staff was friendly, and the technicians were knowledgeable. Oasis provided the most competitive quote. Our unit is back to normal operation after a new compressor was installed.

Drew B

I had an awesome experience with Oasis. We had a leak in our HVAC system and they showed up right away to fix it. Naem was great and was able to fix the system in no time. Would recommend them to others!

Jason Caref

Mike and the technicians are always great - we have been using Oasis for 20+ years and this a great service - highly recommend!!

Response from the owner: Jason, we're glad to know we can consistently provide you with amazing service. Thank you so much!

laura rupp

Mike came so fast on a Sunday night! He was very professional and transparent. Would recommend!!

Isaac Reinemann

Oasis was incredibly helpful in diagnosing my AC issues. The tech was knowledgeable and willing to explain the problem and come to a reasonable solution.

Purvs D

We’ve been using Oasis for our annual maintenance for many years and have always had a great experience. Naem usually services our hvac and ac and is punctual, polite and very thorough. Their scheduling and billing system is perfect as well.

Cynthia Cho

I cannnot recommend Oasis Heating & Cooling more! We have used them twice so far. Once for installing 2 HVACs in our city townhouse, requiring a crane and removal of old units. The process was smooth all the way through. Hani and his team were professional and communicated well from estimate to completion. Following that experience, we continued with maintenance of our HVACs with Oasis over several years.This month, we just purchased a home in Chicago. The previous homeowner had at least 1 dog and left visible dog hair throughout the home. After cleaning the house, I looked in the vents and found more dog hair. We decided to call Oasis for a Vent Cleaning estimate, a relatively new service they provide. Although their schedule was full with A/C jobs, they fit us in because we hadn't yet moved in, so access to the vents was easier. Vaha, Kike, Fernando and their team were amazing, particularly on a warm and humid day, which you can't run AC while the cleaning is in process. They went above and beyond fixing and replacing vent covers that were reversed throughout the house. Again, they communicated through the entire process and took care of everything that came up during the service.We did get estimates from other vent cleaners who offer initially low looking rates, but then charge per vent that they clean or have other ways of making the price difference up. I also found some of them to be uncaring and/or pushy about their service - very "take it or leave it" attitudes. Oasis is reasonable with a per HVAC charge that includes all vents that are connected to that HVAC. Their equipment is top notch and their staff - from estimate to completion are caring and professional.I would not hesitate to use them again and strongly recommend their services! This is a fantastic company!

steve abrams

I have used OASIS for the past 15 years EXCLUSIVELY- they are the best...the staff is unsurpassed, their pricing is excellent and they are fair and honest beyond comparison. Today, they replaced my entire HVAC system (furnace, compressor, etc.) in under 4 hours and their work is exemplary! Thank you, OASIS, as always!

Response from the owner: Thank you so much, Steve! Year after year, we are happy to work with you. We love our repeat clients, and look forward to maintaining this new system for years to come. We were happy to work with you, as always! 😀

Barry Janovsky

Great company. All the technicians take the time to explain everything. They are timely, professional and knowledgeable. Great Work.

Response from the owner: Thank you so much, Barry! We are more than happy to explain every step, and glad to assist you.

Les Carter

Scheduled quickly when we had a leak in our upstairs AC unit. Came right on time next day. Solved the issue. Friendly service with clear explanation of what was needed. Thank you!

Response from the owner: Thank you for the great review, Les! We are more than happy to help explain the solution, and look forward to helping with preventative maintenance in the future.

Raelyn Cooper

Absolutely amazing service. I called at 9:30pm and someone returned my call within 10 minutes with an appt that worked with my schedule. Discussed issues, how to avoid in the future and does/don'ts of using AC in hot months. We have used them for 5 years now! Highly recommend!

Response from the owner: Thank you so much, Raelyn! We do our best to always offer top of the line service, and love to help maintain our client's equipment year after year. Thank you for the recommendation, and we look forward to assisting you again next year!

Agnes Pietrzak

These guys are the best. They went above and beyond to solve the problem. Very honest and knowledgeable. Quick response. Trust them fully

Response from the owner: Thank you for the great review, Agnes! We are happy to help, and hope we can help maintain your systems for years to come.

Alicia Diebold

Naem was punctual, communicated each step, and got our AC fixed quickly on a hot day! He also provided helpful tips to make sure our units keep working well going forward!

Response from the owner: Thank you so much, Alicia! Naem is incredible, and he will be glad to know he could help you out.

Benjamin Berk

Always responsive and thorough!

Response from the owner: Thank you so much, Benjamin!

Robert

Oasis installed a Bryant furnace / ac combo in my duplex apartment. The guys did a good job with a challenging downflow furnace and horizontal coil installation. HVAC work is expensive, but Mike’s price was the most competitive.

Response from the owner: Thank you for the great review, Robert! We know HVAC work is complex, but we like to work with our clients to provide the best solution possible.

Leslie Manzara

Response from the owner: Thank you, Leslie!

Tiffany Frayer

We inherited some old systems in our newly purchased house. Oasis installed our new furnace last fall and we have been really happy with it. Our A/C unit just died and we had Oasis out to diagnose. Naem was a fabulous technician and helped us understand what was going on and answered all of our questions. We appreciate their quick and efficient service.They were able to schedule us for a new install (the very next day!) and it was completed within 3 1/2 hours. We are very pleased.

Response from the owner: Thank you so much, Tiffany! Naem is incredible, and we are so glad you had a wonderful experience and a quick turn around. We are glad the system works great, and look forward to maintaining it for years to come.

David Walker

Team and Techs are super helpful, fully explain their process the entire way. What the issue is and what could cause it.

Response from the owner: Thank you so much, David! We take pride in being able to educate our customers so they can make the best decision for their home.

Jason Werner

Called Oasis Tuesday night at 9:30pm after my central AC quit on me. A tech was at my apartment at 8:30 Wednesday morning and had me up and running by 10am. 5⭐️’s all around

Response from the owner: We love to offer a quick turn around, and we are so glad we could help you out. Thank you for the great review, Jason!

Jaron Austin

I was incredibly impressed with my first interaction with Oasis Heating and Cooling. On a Sunday morning, we woke up to a broken air conditioner. That particular day was over 90 degrees and extremely humid, and we were hosting a birthday party for my 1-year-old son. With a large number of guests arriving in the next two hours, the AC breakdown couldn't have happened at a worse time.I called various heating and cooling companies across the city, but none were available on a Sunday, and the next available appointments were not until the following week. I knew it was a long shot to get someone to our home on short notice on a Sunday morning.However, this is where Oasis Heating and Cooling truly stood out with their exceptional service and customer care. I left a message with their team, and they showed a tremendous amount of care and concern for our situation. I received a call back almost immediately from a technician who said he was on his way and would arrive within 15 minutes.The technician was extremely thorough and efficient while being mindful that we were preparing for my son's birthday party. I want to thank the entire Oasis team for helping our family in a difficult situation. I truly appreciate your work and for going above and beyond.

Response from the owner: Thank you so much for the incredible review, Jason! We know when it rains, it pours, and Air Conditioners always seem to happen at the most inconvenient times. We were so glad we were able to help you out, and are glad the party could go on as planned (happy birthday to your son, by the way! 🎉) Thank you so much, and we hope to help with preventative maintenance this Winter.

David Benning

Expert work and prompt service. Thanks again!

Response from the owner: Thanks for the review, David! We were happy to help!

Rus Bassehler

Oasis was prompt came within the window of time, a one hour window as well, which was appreciated, showed me what they were doing, and were in and out very quickly. Thanks!

Response from the owner: Thank you for the review, Rus! We were glad to help, and hope you keep us in mind for preventative maintenance!

Donna Calvert

We’ve been using (and recommending) Oasis for years, both at our current new place and our old place. Our air conditioning stopped working yesterday. Naheem showed up early this morning as expected, quickly identified and resolved the problem, and made sure everything else was working well before he left. He was polite, friendly, knowledgeable and capable - which is standard for Oasis. Highly recommend.

Response from the owner: Thank you so much, Donna! We love our long time clients, and are always happy to help you out! Naheem will be glad to know he can keep your standards for service high, and we look forward to helping you again in the future!

Mike Veldhuis

Quick response time! Also, the person that showed up was super nice and full of knowledge. Thanks for troubleshooting and solving the problem….enjoying a cool house again

Response from the owner: Thank you so much for the amazing review, Mike! Our technicians take a lot of pride in their knowledge, and we were happy to help you out!

Leave a Review Chicago Leave a Review Elmhurst