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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.

View Program

Contact Oasis Plumbing, Heating & Cooling Today!
Featured Five-Star
Customer Reviews

I called Oasis this morning because my furnace was not working. Within 20 minutes their technician, Danny, arrived. Danny was able to assess the situation, provide an immediate fix, and even commit to returning Monday morning to provide additional services needed. Danny was friendly, informative, professional and FAST! I am thankful I called Oasis for my immediate heating needs and that Danny was the technician who arrived. Top notch service! Highly recommend.

Megan R.

Oasis 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.

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.

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.

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.

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.
Kevin Murphy
5 hours 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
11 hours 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
1 day ago
Response from the owner:Thank you, Matt, for taking the time to leave a review. We appreciate your support!
Kevin Lannon
1 day 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!
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
2 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!
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
2 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
2 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
3 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
3 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
3 days ago
Response from the owner:Thank you, Aindreela, for taking the time to leave a review! Your feedback is appreciated.
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
3 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
3 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
5 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
5 days 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
5 days 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.
Aimée Starck
5 days ago
Oasis was responsive to our call and had Damir out to see us within two hours. He arrived with booties for his shoes (always appreciated!) and was able to diagnose and solve our AC issue quickly. We used Oasis to install a new furnace and condenser years ago and they are a provider we will continue going back to. Thank you, Damir and Oasis!
Response from the owner:Thank you, Aimée! We're glad to hear that Damir was quick to respond and able to resolve your AC issue efficiently. We appreciate your continued trust in Oasis for your heating and cooling needs!
Paul Duffy
6 days ago
Knowledgeable people. They always seem to say and do what is best for the customer - I’ve been going back to them for years.
Response from the owner:Thank you, Paul! We appreciate your loyalty and are glad to hear that our team consistently meets your needs. Your support means a lot to us!
Tushar Chandra
6 days ago
Joseph came on time, identified and fixed our AC unit (busted capacitor), and was friendly and helpful throughout. I've had consistently great experiences with Oasis and this was no exception – highly recommend!
Response from the owner:Thank you, Tushar! We're glad to hear that Joseph provided timely and helpful service with your AC unit. Your continued support and recommendation mean a lot to us!
Andrew Rice
6 days ago
Response from the owner:Thank you, Andrew, for taking the time to leave a review. We appreciate your feedback!
Joseph was kind and professional. He was on time and efficient and took his him to explain what was wrong with our AC and what the fix was. Highly recommend Oasis Heating and Cooling!
Response from the owner:Thank you, Jessica! We're glad to hear that Joseph provided you with kind and professional service. Your recommendation means a lot to us!
Emma M
7 days ago
Joseph came on a Sunday right after 4th of July And quickly fixed my AC on the hottest day of the year. Great service and on time!
Response from the owner:Thank you, Emma! We're glad Joseph could assist you on such a hot day and appreciate your kind words about his timely service.
Dan Burke
1 week ago
I was given a good overview of the issue and the best course of action to resolve the issue.
Response from the owner:Thank you, Dan! We're glad to hear you found the overview helpful and that we could assist you in resolving the issue. Your feedback is greatly appreciated!
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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

$79 AC / Furnace Deep Clean and Tune Up

Blower wheel pull and clean. Our 90-Minute Deep Clean Helps Prevent Breakdowns And Improve Efficiency.

Offer valid for first-time residential customers only. Includes up to 90 minutes of A/C or heat pump tune-up and blower wheel pull and clean when accessible. Repairs, parts, refrigerant, and additional services not included. No Breakdown Guarantee subject to terms and conditions. Cannot be combined with other offers.

Offer expires July 31, 2026

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Chicago, IL