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AC Repair, Furnace Service, Furnace Repair, AC Installation & Plumber Chicago, IL, Skokie, IL, Elmhurst, IL, Lombard, IL, Addison, IL & Wilmette, IL

Plumber in Chicago, IL | Furnace Service Skokie, IL | AC Repair Elmhurst, IL

Heating Service ∴ HVAC Repair ∴ AC Installation ∴ Furnace Repair ∴ Furnace Service ∴ Lombard, IL ∴ Villa Park, IL ∴ Chicago, IL

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

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.

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.

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.

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.

Excellent

Oasis Heating and Cooling4.9

Based on 1292 reviews

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Megan Wiley

13 hours ago

We’ve been using Oasis for years! Hani is the best! Trustworthy and honest. Highly recommend Oasis!

Kerrie

17 hours ago

Been using Oasis for twice a year routine maintenance on my ac/furnace unit and they always are prompt, friendly and have it running great. Prices are reasonable. Update July 2026: they are great from the owner, Mike, to the person fielding the appointment calls. Truly appreciate their service and thorough recommendations and help!

Response from the owner:Thank you, Kerrie, for your kind words! It's great to know your AC/furnace is running well and that you find our prices reasonable. We look forward to continuing to work with you!

Dave Faherty

20 hours ago

Great, professional service!

Response from the owner:Thank you, Dave! We're glad you had a great experience with our professional service. Your feedback means a lot to us!

Jared Freer

21 hours ago

Joseph was very helpful and professional.

Response from the owner:Thank you, Jared! We appreciate your kind words about Joseph and are glad to hear he was able to assist you effectively.

anne gibson

2 days ago

Oasis is fantastic. Very friendly, prompt (actually early, which was very much appreciated!), clear and professional. They gave us options to meet our budget. Highly recommend!

Response from the owner:Thank you so much, Anne, for your 5-star rating; your support means a lot to us!

Judd Larned

2 days ago

We have used Oasis for HVAC services for years. They are responsive, easy to work with, knowledgeable and reasonably priced.

Wayne Steger

2 days ago

Very helpful technician. He quickly diagnosed the problem and fixed it, but also gave us multiple tips for no cost maintenance and prolonging the life of the AC condenser.

Response from the owner:Thank you, Wayne! We're glad to hear that our technician was able to quickly diagnose and fix the issue while also providing you with valuable maintenance tips. Your feedback is greatly appreciated!

Kevin Murphy

3 days ago

Response from the owner:Thanks Kevin. We’re thrilled that you were satisfied with our services. Your feedback is appreciated, and we hope to be of help again soon!

jane ramsey

3 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!

Matt Gordon

4 days ago

Response from the owner:Thank you, Matt, for taking the time to leave a review. We appreciate your support!

Kevin Lannon

4 days ago

Joseph came out. Very quick, polite professional. Made sure I understood the maintenance and charges.

Response from the owner:Thank you, Kevin! We're glad to hear that Joseph provided you with quick and professional service while ensuring you understood everything. We appreciate your feedback!

Patrick Schulze

4 days ago

Excellent service! We have them come out every spring to check up on our AC. Update: Still excellent service. I really appreciate the prompt communication and text updates. The service tech was very professional and helped fix a leak in our ac system.

Response from the owner:Thank you so much for your business and feedback, Patrick! If any of your friends or family need help, please let them know about us!

Sharon OBrien

4 days ago

This is a highly trusted business. I've worked with them for the past 10 years and they are absolutely, hands down one of the best customer focused businesses I've come across. I had an issue with my A/C recently (during one of those 90+ degree nights) and called to leave a message for the morning.......the owner of the business Mike Causevich answered my call and walked me thru what to do to fix my system without them having to come out. I give them my highest recommendation.

Response from the owner:Thank you, Sharon, for your kind words and continued trust over the past decade; we're glad Mike could assist you during that A/C issue, and we appreciate your highest recommendation!

Jacqueline Davila Benson

5 days ago

Knowledgeable, friendly and on time. Would definitely recommend.

Response from the owner:Thank you, Jacqueline! We appreciate your kind words and recommendation. It's great to hear you had a positive experience with our team.

Ben Matsche

5 days ago

Friendly and professional service. Quick same-day response for broken AC component and the technician was knowledgeable in sharing the diagnosis and repair actions.

Response from the owner:Thank you, Ben! We're glad you experienced friendly and professional service. It's great to hear that our technician was able to promptly address the AC issue and provide clear information. We appreciate your feedback!

Ryan Raccuia

5 days ago

Danny is a legend. Fixed a problem multiple other AC companies either couldn’t diagnose or couldn’t fix. Great tech and guy.

Response from the owner:Thanks, Ryan! We appreciate your kind words about Danny and are glad he could help resolve your issue. Your feedback means a lot to us!

Janis Sayer

5 days ago

They really did a great job. The repair people were very nice, communicative, and went above and beyond to help me understand the problem.

Response from the owner:Thank you, Janis! We're glad to hear that Danny provided excellent service and clear explanations. Your recommendation means a lot to us!

Rina Patel

6 days ago

(July ‘26) Reached out as my AC went out. Was ghosted by Craig. Understand it was a holiday weekend. But no followup even the next week. Very disappointing. (January ‘26) The nicest man came out at 7am to check out my system. And then another super nice person came out at 12:30pm, part in hand to fix my system, saving me from having to replace my furnace. Both people were kind, professional, and worked quickly. I’ll be using them again, for sure!

Response from the owner:Thank you, Rina! We appreciate your kind words about our team and are glad we could assist you promptly. We're looking forward to helping you again in the future!

Aindreela Bodde

6 days ago

Response from the owner:Thank you, Aindreela, for taking the time to leave a review! Your feedback is appreciated.

Ashley Fitzgibbons

6 days ago

Super helpful, and provided a very detailed explanation. Danny is excellent, would happily use Oasis again

Response from the owner:Thank you, Ashley! We appreciate your kind words and are glad to hear that Danny provided you with excellent service. We look forward to welcoming you back to Oasis!

Brennan Marion

6 days ago

Steve was a pleasure to work with. He made things easy, professional, and timely. I’ll be reaching back out to Oasis for my plumbing & HVAC needs in the future.

Response from the owner:Thank you, Brennan! We're glad to hear that Steve provided you with excellent service. We look forward to assisting you with your plumbing and HVAC needs in the future!

Jess Hutchinson

6 days ago

Joseph was right on time, explained how my system was doing, and answered all my questions!

Response from the owner:Thank you, Jess! We're glad to hear that Joseph provided you with timely and informative service. Your satisfaction means a lot to us!

erin hannah

7 days ago

they scheduled for next day service and were so quick! they helped install my new thermostat and diagnosed my air conditioner all in less than an hour. also so knowledgeable and answered all my questions.

Response from the owner:Thank you, Erin! We appreciate your kind words and are glad to hear that our team was quick and helpful with your thermostat installation and air conditioner diagnosis. Your satisfaction means a lot to us!

Nathan Haynes

1 week ago

They arrived early and worked efficiently. Repairs look great.

Response from the owner:Thank you, Nathan! We appreciate your positive feedback and are glad to hear that the repairs met your expectations.

Steve Wolf

1 week ago

Fantastic service as always. Professional and timely.

Response from the owner:Thank you, Steve! We appreciate your kind words about our service and are glad to hear you found it professional and timely.

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$77 off any Plumbing Repair

Restore Comfort Fast With Professional HVAC & Plumbing Repairs.

Offer valid on qualifying residential repair services only. Diagnostic fees, maintenance services, replacements, and new installations are not eligible. Cannot be combined with other offers or prior sales.

Offer expires July 31, 2026

$77 Off Repair

Restore Comfort Fast With Professional HVAC Repairs.

Offer expires July 31, 2026

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