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Oasis Plumbing, Heating & Cooling Offers Seasonal Maintenance Plans

Professional Furnace Services for Chicago Homes and Businesses

When temperatures plummet during Chicago winters, your furnace becomes the heart of your home’s comfort system. At Oasis Plumbing, Heating & Cooling, we understand how critical reliable heating is when arctic winds sweep across Lake Michigan and temperatures drop well below freezing. Our comprehensive furnace services ensure your heating system operates efficiently throughout the harsh winter months, keeping your family warm and your energy bills manageable.

Chicago’s extreme temperature variations place unique demands on residential and commercial heating systems. The city experiences an average of 28 days per year with temperatures below 10°F, making furnace reliability non-negotiable. Our technicians encounter everything from century-old boiler systems in historic Wicker Park brownstones to state-of-the-art high-efficiency furnaces in modern Lincoln Park condominiums. This diverse experience, accumulated over more than 20 years serving Chicago and the Northern Suburbs, enables us to diagnose and repair virtually any furnace issue quickly and effectively.

Comprehensive Furnace Repair and Diagnostics

When your furnace fails on a frigid January morning, you need immediate assistance from experienced professionals. Our diagnostic process begins with a thorough system evaluation, examining critical components including the heat exchanger, blower motor, ignition system, and control board. We utilize advanced diagnostic equipment to identify issues that might not be immediately apparent, such as hairline cracks in heat exchangers or intermittent electrical problems that could lead to complete system failure.

Common furnace problems we encounter in Chicago homes include pilot light failures, thermostat malfunctions, inadequate heat distribution, and unusual noises indicating mechanical wear. Older furnaces often suffer from corroded flame sensors, worn bearings in blower motors, or deteriorating heat exchangers that pose carbon monoxide risks. Our technicians carry extensive parts inventories, allowing us to complete most repairs during the initial service visit. This approach minimizes downtime and ensures your home returns to comfortable temperatures as quickly as possible.

Energy-Efficient Furnace Installation and Replacement

Modern high-efficiency furnaces can achieve Annual Fuel Utilization Efficiency (AFUE) ratings of up to 98%, meaning nearly all fuel consumed converts directly to heat for your home. Compared to older models operating at 60-70% efficiency, upgrading your furnace can reduce heating costs by 30-40% annually. We specialize in installing variable-speed furnaces that adjust output based on heating demands, providing consistent temperatures while minimizing energy consumption.

The installation process requires careful consideration of multiple factors unique to each property. We calculate proper furnace sizing using Manual J load calculations, accounting for square footage, insulation levels, window efficiency, and Chicago’s specific climate data. Undersized units struggle to maintain comfortable temperatures during extreme cold, while oversized systems cycle frequently, creating temperature fluctuations and increased wear. Our installation team ensures proper ductwork connections, gas line configurations, and electrical requirements meet all local building codes and manufacturer specifications.

Preventive Maintenance Programs

Since 1997, Oasis Plumbing, Heating & Cooling has witnessed how regular maintenance dramatically extends furnace lifespan and prevents unexpected breakdowns. Our comprehensive maintenance programs include:

  • Complete system inspection examining all mechanical and electrical components
  • Thorough cleaning of burners, heat exchangers, and blower assemblies to maximize efficiency
  • Safety testing including carbon monoxide detection and gas leak checks
  • Filter replacement and airflow optimization to reduce strain on system components
  • Thermostat calibration ensuring accurate temperature control and programming

Regular maintenance typically reduces heating costs by 10-15% through improved efficiency and prevents approximately 95% of furnace failures. Our technicians document all findings and provide detailed recommendations for any components showing signs of wear, allowing you to plan for replacements before emergency situations arise.

Emergency Furnace Services

Chicago winters don’t wait for convenient times to create heating emergencies. Frozen pipes can burst within hours when furnaces fail, causing thousands of dollars in water damage. We maintain emergency response teams throughout Chicago, Bensenville, Addison, and Elmhurst to address urgent heating failures. Our dispatchers prioritize calls based on severity, with homes containing elderly residents, young children, or individuals with medical conditions receiving immediate attention.

Emergency situations often reveal underlying problems that homeowners might not recognize. Frequent cycling, uneven heating between rooms, or gradual efficiency decreases indicate developing issues. We educate customers about warning signs including yellow pilot flames suggesting incomplete combustion, excessive dust accumulation around vents, or unexplained increases in heating bills. Addressing these symptoms early prevents complete system failures during critical weather events.

Commercial Furnace Solutions

Commercial properties face unique heating challenges requiring specialized expertise. Restaurants need makeup air units coordinated with exhaust systems, while warehouses require strategic heat distribution across vast open spaces. Office buildings demand zone control capabilities accommodating varying occupancy patterns and heat loads from electronic equipment. Our commercial division designs custom solutions addressing these specific requirements while maximizing energy efficiency and minimizing operational disruptions.

We coordinate installations and major repairs during off-hours to avoid business interruptions. Our commercial maintenance agreements include priority service, detailed system documentation, and energy usage analysis helping facility managers optimize heating costs. Many Chicago businesses have reduced heating expenses by 25-35% through our efficiency upgrades and smart control system implementations.

Advanced Furnace Technologies and Future Considerations

The heating industry continues evolving with technologies improving comfort and efficiency. Smart thermostats now learn occupancy patterns and adjust temperatures automatically, while zoning systems deliver precise comfort control to individual rooms. Hybrid heating systems combining high-efficiency furnaces with heat pumps optimize energy usage based on outdoor temperatures and utility rates. We stay current with these advancements, offering customers the latest options for their specific needs and budgets.

Environmental considerations increasingly influence furnace selections. New refrigerants and combustion technologies reduce greenhouse gas emissions while maintaining superior performance. Many utility companies offer rebates for high-efficiency installations, which we help customers navigate to maximize savings. As Chicago moves toward stricter energy codes, we ensure all installations exceed current requirements, protecting your investment against future regulatory changes.

Choosing Oasis Plumbing, Heating & Cooling for your furnace services means partnering with professionals who understand Chicago’s unique climate challenges and have the experience to deliver lasting solutions. Our commitment to quality customer service, reliability, and technical expertise has earned the trust of residential and commercial clients throughout the region. Whether you need emergency repairs, routine maintenance, or complete system replacement, our highly-trained technicians provide customized solutions fitting your specific requirements and budget constraints.

Furnace Services in Chicago, IL

Furnace Services in Chicago, IL

Furnace Services ∴ 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

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.

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.

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 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 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.

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 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.
Kyle Magnuson
1 day ago
Joseph was super helpful and diagnosed my issue in no time flat!
Honest, professional, and down to earth. They were able to avert an emergency furnace issue for us.
Response from the owner:Thank you, Kartik, for your kind words! We're glad we could help avert the furnace issue and appreciate your recognition of our team's professionalism.
Mark was wonderful! Very kind and honest, explained everything clearly to me. Very fair prices. Will be using them again!
Unsh Thakore
1 day ago
VIcky Golub
1 day ago
Great experience with the company, as always. For the annual maintenance, Joseph showed up on time. He was very friendly, polite and professional. There were some minor issues with AC which he identified quickly and fixed them right away. I will definitely use this company again in the future.
Response from the owner:Thank you, Vicky, for your wonderful feedback and for being a loyal customer for the past ten years; we're glad to hear that Damir and the team have provided you with excellent service and helpful tips! Your support and recommendation truly means a lot to us!
Giles Miller
1 day ago
Oasis showed up when they said they would be there and got the work done quickly and without the need for follow up. I had them replace a furnace in 2024 and an AC unit in 2026.
John Dungan
1 day ago
I will never call another service. Everything about Oasis is 5 stars. When I called them just to get information about their services and schedule an appointment, the customer service representative was informative and courteous. I also delightfully surprised that they could schedule a 7 AM appointment so I didn’t have to miss any work. On the day of my appointment, Joseph arrived at 7 exactly! He was also courteous, informative, and efficient. He sealed the deal on me being a lifetime customer of Oasis. I highly recommend everyone give this outfit a lot of consideration when deciding who to call. You won’t regret it.
Response from the owner:Thank you, John, for your fantastic review! We're glad to hear that you had such a positive experience with our team, especially with Joseph. Your recommendation means a lot to us, and we look forward to serving you in the future!
Tom Fogerty
2 days ago
Response from the owner:Thank you, Tom, for taking the time to leave a review. We appreciate your feedback!
Prompt, courteous, expert service at an affordable rate.
Response from the owner:Thank you, Zachary! We appreciate your kind words about our service and are glad you found it both prompt and affordable. Your support means a lot to us!
Response from the owner:Thank you, James, for taking the time to leave a review! Your feedback is appreciated.
D Chen
3 days ago
I called, and my water heater was repaired within two hours — amazing service! 👍🎉 I’m very satisfied with the water heater repair service.
Response from the owner:Thank you, D! We're glad to hear you were satisfied with the quick repair service. Your support means a lot to us!
James Hornick
3 days ago
Worked with these guys for years. Always solid work.
Response from the owner:Thank you, James! We're glad to hear that Joseph made a positive impression with his professionalism and efficiency. Your recommendation means a lot to us!
William Cerney
3 days ago
Response from the owner:Thank you, William, for taking the time to leave a review. We appreciate your support!
Victoria Vanek
3 days ago
We had an excellent experience with the AC technicians from Oasis. They quickly investigated the issue with our AC system early in the morning and were able to install a brand-new unit the very same day. During a heat wave, their fast response saved us from having to spend the day and another night in an unbearably hot condo. The team was extremely courteous, professional, and efficient throughout the entire process. We truly appreciated their responsiveness, clear communication, and quality work. Highly recommend Oasis for their outstanding service!
Response from the owner:Thank you, Victoria! We're glad to hear that our technicians provided excellent service and quickly resolved your AC issue during the heat wave. Your appreciation for their professionalism and communication means a lot to us. We look forward to serving you again!
Eric Lindahl
4 days ago
Excellent experience from scheduling the appointment to the service call. I appreciate receiving a courtesy notification when the technician was on his way. Joseph was on time, professional and courteous. He answered all my questions and was quick and efficient. I am very satisfied with the level of service that I received from Oasis and I will definitely be using them again for my future HVAC needs.
Response from the owner:Thank you, Eric, for your wonderful feedback! We're glad to hear that you had an excellent experience from start to finish. It's great to know that Joseph provided you with timely and professional service. We look forward to assisting you with your future HVAC needs!
Katy Piotrowski
4 days ago
Response from the owner:Thank you for your review, Katy! We appreciate your feedback and are here to help if you have any thoughts to share.
Brian M
4 days ago
Great overall experience with an annual AC tuneup and a cleaning of our tankless water heater.
Response from the owner:Thank you, Brian, for your wonderful feedback; we’re glad you had a great experience with your new AC install and appreciate your kind words about our service and prices!
Mike Heitz
1 week ago
Steve and Amir tested our ejector pump and were super helpful in explaining what was going on with it.
Response from the owner:Thank you, Mike! We're glad to hear that Steve and Amir were helpful in explaining the ejector pump details. Your feedback is appreciated!
Pam Bargo
1 week ago
Joseph was great! Efficient and helpful!
Response from the owner:Thank you, Pam! We're glad Joseph was able to assist you efficiently and helpfully. Your feedback is appreciated!
Andrew Clancey
1 week ago
Much more affordable and way better service than their competitors. I'm looking forward to continuing to work with them.
Response from the owner:Thank you, Andrew! We're so glad you find our service affordable and better than the competition. We appreciate your support and look forward to continuing to work with you as well!
Jayne Stahl
1 week ago
Joseph was right on time and took the time to answer all my questions.
Response from the owner:Thank you, Jayne! We're glad Joseph was able to assist you and answer all your questions. Your satisfaction is important to us!
Khalid Qazi
1 week ago
Very good customer service.
Response from the owner:Thank you, Khalid! We appreciate your kind words about our customer service.
Carla Vassilos
1 week ago
Easy to schedule. Great appt reminders. Friendly staff. Quick diagnostic. Fair pricing.
Response from the owner:Thank you, Carla! We appreciate your kind words about our scheduling, reminders, and friendly staff. We're glad you had a positive experience and found our pricing fair.
Dipak Patel
1 week ago
Demir and the team were great! Friendly, answered all my questions and installed my furnace during the coldest week of the year.
Response from the owner:Thank you, Dipak, for your kind words! We're glad Damir and the team could provide friendly service and guidance! Your feedback means a lot to us, and we hope to see you again soon!
Keith Grant
1 week ago
Response from the owner:Thank you, Keith, for taking the time to leave a review. Your feedback is appreciated!
kamil jankowski
1 week ago
Danny and Joseph were great! The diagnosed the problem and fixed quickly.
Response from the owner:Thank you, Kamil! We're glad to hear that Danny and Joseph provided great service by diagnosing and fixing the problem quickly. Your feedback is appreciated!
Patrick Theiler
1 week ago
Joseph was great! Friendly, knowledgeable, professional!
Response from the owner:Thank you, Patrick! We're glad to hear that Joseph made a positive impression with his friendly and professional service. Your feedback is greatly appreciated!
Marcia Kondo
1 week ago
Technician showed up right on time and was quick and knowledgeable. Explained the problem, what was replaced and described future possibilities and things to watch for.
Response from the owner:Thank you, Marcia! We're glad to hear that the technician was punctual and provided you with clear explanations. Your feedback is appreciated!
Anna Palumbo
1 week ago
Joseph came out for yearly maintenance on our AC unit. Friendly and knowledgeable. We have had an overall good experience using Oasis for installation and maintenance or our HVAC system.
Response from the owner:Thank you, Anna! We're glad to hear that Joseph provided friendly and knowledgeable service during your AC maintenance. We appreciate your trust in Oasis for your HVAC needs.
Paul Lueders
1 week ago
I’ve been using Oasis for a few years now for regular ac/hvac maintenance. They are consistent, timely, respectful, and I’ve liked every technician that’s been sent my way. Communication and scheduling is also a breeze. Highly recommend.
Response from the owner:Thank you, Paul, for your kind words and for being a loyal customer! We're glad to hear that our team has consistently met your expectations and that you’ve had positive experiences with our technicians. Your recommendation means a lot to us!
Steve and Eric were great! An exterior pipe burst over the winter. They repaired it quickly and talked us through how to ensure it did not burst again.
Response from the owner:Thank you, Marisa! We're glad to hear that Steve and Eric provided you with quick and helpful service. Your feedback is truly appreciated!
Lucy Kaplan
1 week ago
Prompt and pleasant service. Highly recommend. 2026 Update: Just had my 20 tr old AC unit serviced by Joseph from Oasis. He was prompt and polite. He explained everything he was doing. Very happy with this company and strongly recommend them.
Response from the owner:Thank you so much for your business and feedback, Lucy! If any of your friends or family need help, please let them know about us!
Brian P
1 week ago
Joseph was on time, explained everything and had the system working in about 30 minutes.
Response from the owner:Thank you, Brian! We're glad to hear that Joseph provided prompt and thorough service. Your satisfaction means a lot to us!
Stephanie Block
2 weeks ago
Had such a lovely experience with Joseph and Oasis today! Joseph was extremely friendly, professional and knowledgeable. He made sure to explain everything thoroughly and addressed all our issues. He fixed everything quickly and with genuine care. Thank you for your help!!
Response from the owner:Thank you, Stephanie! We're so glad to hear about your lovely experience with Joseph. His friendliness and professionalism truly make a difference. We appreciate your kind words and are here to help anytime!
thomas foley
2 weeks ago
Response from the owner:Thank you, Thomas, for taking the time to leave a review. Your feedback is appreciated!
Mike M
2 weeks ago
Oasis was prompt and helpful. They scheduled my appointment quickly and confirmed in email and text. The rep was friendly and helpful and walked me through options and recommendations, the pricing was reasonable as well. I also had them come out for maintenance and review my AC and Joseph was very helpful! Prompt and walked me through my needs! Thank again!
Response from the owner:Thank you, Mike, for your kind words! We're glad to hear you found our service prompt and helpful, and that our team was able to assist you effectively. Your feedback is greatly appreciated!
Emily Pollard
2 weeks ago
Very prompt and straightforward team - appreciate the responsiveness!
Response from the owner:Thank you, Emily! We're glad to hear you appreciated our team's promptness and responsiveness. Your feedback means a lot to us!
Monica Hying
2 weeks ago
Joseph was great today and very informative
Response from the owner:Thank you, Monica, for taking the time to leave a review. We appreciate your support!
Mihailo Rakovic
2 weeks ago
Outstanding service! The technicians are incredibly knowledgeable, punctual, and respectful of your home. They diagnosed our issue quickly and charged a very reasonable price. Honest, reliable, and highly recommended!
Response from the owner:Thank you, Mihailo! We appreciate your kind words about our technicians and their service. It’s great to hear that you found the diagnosis quick and the pricing reasonable. Your recommendation means a lot to us!
ellen egan
2 weeks ago
I had a new A/C unit installed today. The two technicians were beyond professional and knowledgeable in all aspects of the service. They took the time to explain the process to me.
Response from the owner:Thank you, Ellen, for your kind words! We're glad to hear that our team provided you with great service. We appreciate your support and are here for you anytime!
Rhonda Ellis
2 weeks ago
Quick and knowledgeable very satisfied with the service
Response from the owner:Thank you, Rhonda! We're so glad to hear that you found our service quick and knowledgeable. Your satisfaction means a lot to us!
A R
2 weeks ago
I have used Oasis once for HVAC maintenance and twice for plumbing issues. Each appointment has been a pleasant experience. The HVAC technician and plumbers have all been courteous and performed good work, and clearly explained the work done.
Response from the owner:Thank you for sharing your positive experiences with us, A! We're glad to hear that our HVAC technician and plumbers provided courteous service and clear explanations. Your support means a lot to our team!
George C
2 weeks ago
Update on May 2026: Oasis has a great plumbing team now! Thanks Steve and Amer for the smooth water switch change. They are very knowledgeable and patient. Update on April 2026: had my second appointment with Joseph, who was absolutely amazing. I can always learn something useful from him to better care for my system. Highly recommend him and Oasis! Glad I found Oasis to help me maintain my home heating and cooling system! From booking the first visit, to communicating the arrival time, Chris went up and above. My technician Joseph showed up on time and answered all my questions regarding my home furnace and humidifier. Will be working with them annually moving forward!
Response from the owner:Thank you, George! We're grateful you chose Oasis for your home heating and cooling needs. It's great to hear Chris and Joseph provided such excellent service, and we look forward to working with you annually!
EER
2 weeks ago
Great job as always!
Response from the owner:Thank you, Eer! We appreciate your kind words and continued support.
Karen Otto
2 weeks ago
Oasis arrived on time to dismantle my 16 year old AC and carried the new AC up 4 flights in a tight staircase, all professionally done. The installation was completed in 4 hours and the result vastly improved not just the coolness of our home but the noise factor, it is unbelievable how much quieter with the new system. This is my 2nd experience with Oasis and I highly recommend and trust their team.
Response from the owner:Thank you, Karen, for your wonderful feedback! We're glad to hear that our team was able to provide you with a smooth installation experience and that you're enjoying the improved comfort and quiet of your new AC. We appreciate your trust and loyalty to Oasis!
searah deysach
3 weeks ago
Always excellent service. The tech was here in 15 minutes and we were back up and running shortly after.
Response from the owner:Thank you, Searah! We're glad to hear you received excellent service and that our tech was able to assist you promptly. Your satisfaction is important to us!
J S
3 weeks ago
Oasis is the best heating and cooling company to work with in all of Chicagoland! I will only work with these guys. They are professional, kind and considerate, and truly understand heating and cooling.
Response from the owner:Thank you so much! We know every HOA is different, and we are glad we could get the paperwork figured out so quickly. Thank you so much, and we hope to work with you again this winter!
Evan Westerfield
3 weeks ago
I have been using Oasis for several years. They installed my Space Pak a/c system, as well as (later) a new hot water heater. They service my boiler and the Space Pak and the hot water heater, on a regular basis. Communication is always excellent. Technicians are knowledgeable and friendly. And those few times when I've had an emergency, they've been there quickly (and times where I've had concerns, only to determine that it was my stupidity, they haven't charged me for the visits). Really pleased with the service!
Response from the owner:Thank you, Evan! We truly appreciate your loyalty and are glad to hear you’re satisfied with our communication and service. It's great to know our team has been there for you during emergencies. Your kind words motivate us to keep delivering excellent service!
Katie Sandberg
3 weeks ago
Joseph was so helpful in finding the gas leak and answering any questions!
Response from the owner:Thank you, Katie! We're glad Joseph was able to assist you with the gas leak and answer your questions. Your feedback is appreciated!
Mew
3 weeks ago
Excellent work. HVAC crew was really sweet. Will continue to use Oasis.
Response from the owner:Thank you, Mew! We're glad to hear you had a positive experience with our HVAC crew. We appreciate your support and look forward to serving you again at Oasis!
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Chicago, IL