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Oasis Plumbing, Heating & Cooling Offers Seasonal Maintenance Plans

Understanding Furnace Repair Needs in Northlake

When your furnace starts making strange noises or fails to heat your home properly during those frigid Illinois winters, you need reliable furnace repair services that can restore comfort quickly. At Oasis Plumbing, Heating & Cooling, we specialize in diagnosing and repairing all types of furnace problems that homeowners in Northlake face. Our extensive experience serving customers in Chicago and the Northern Suburbs for over 20 years has given us deep insights into the unique heating challenges that local residents encounter, from dealing with extreme temperature fluctuations to managing the wear and tear that comes from extended heating seasons.

The most common furnace issues we encounter in Northlake homes include ignition problems, thermostat malfunctions, heat exchanger cracks, and blower motor failures. Each of these problems requires specific diagnostic techniques and repair approaches. For instance, when dealing with ignition issues, we check the pilot light assembly in older models or the electronic ignition systems in newer furnaces, examining components like flame sensors, ignitors, and control boards to identify the exact source of the problem.

Critical Signs Your Furnace Requires Professional Repair

Recognizing early warning signs can prevent complete furnace breakdowns and help you avoid emergency situations during the coldest nights of winter. If you notice your furnace cycling on and off more frequently than usual, this short cycling often indicates problems with the heat exchanger, thermostat calibration, or airflow restrictions that need immediate attention. Similarly, uneven heating throughout your home, where some rooms feel significantly colder than others, typically points to ductwork issues, blower motor problems, or zoning system malfunctions that require professional diagnosis and repair.

Strange sounds emanating from your furnace provide important clues about developing problems. A high-pitched squealing usually indicates belt issues or bearing problems in the blower motor, while banging or popping sounds often suggest delayed ignition or expanding and contracting ductwork. Grinding noises typically signal serious motor bearing failures that, if left unaddressed, can lead to complete motor replacement. 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, and we’ve learned to interpret these warning signs accurately to provide targeted repairs.

Our Comprehensive Repair Process

When you call us for furnace repair in Northlake, our highly-trained technicians follow a systematic approach to ensure accurate diagnosis and effective repairs. We begin with a thorough inspection of your entire heating system, checking electrical connections, measuring voltage and amperage draws, testing safety controls, and evaluating the condition of critical components. This comprehensive evaluation allows us to identify not just the immediate problem but also potential issues that could cause failures in the near future.

During the diagnostic phase, we utilize advanced testing equipment including combustion analyzers to check for proper fuel-air mixture and carbon monoxide levels, ensuring your furnace operates safely and efficiently. We examine the heat exchanger using specialized cameras to detect hairline cracks that could pose carbon monoxide risks. Our technicians also perform static pressure tests on the ductwork system to identify airflow restrictions that could be causing your furnace to work harder than necessary, leading to premature wear and increased energy consumption.

Common Furnace Problems We Resolve

  • Thermostat failures: We repair and calibrate both programmable and smart thermostats, ensuring accurate temperature readings and proper communication with your furnace
  • Ignition system problems: Whether you have a pilot light, hot surface ignitor, or intermittent pilot system, we restore reliable ignition
  • Blower motor issues: We repair or replace motors, capacitors, and belts to restore proper airflow throughout your home
  • Heat exchanger problems: We identify cracks and damage that could compromise safety and efficiency
  • Control board malfunctions: We diagnose and repair electronic control systems that manage your furnace operations

Preventive Maintenance and Long-term Solutions

While emergency repairs are sometimes unavoidable, regular maintenance can significantly reduce the likelihood of unexpected breakdowns. Our responsive support staff offers customized solutions to fit your budget, including maintenance plans that help extend your furnace’s lifespan and maintain its efficiency. During maintenance visits, we clean critical components like burners and flame sensors, lubricate moving parts, check and adjust gas pressure, and replace filters to ensure optimal airflow.

The typical gas furnace in Northlake operates for fifteen to twenty years with proper maintenance, but neglected systems often fail much sooner. Regular maintenance not only prevents breakdowns but also maintains energy efficiency, which is crucial given that heating costs can account for up to forty percent of your annual energy bills. By keeping your furnace operating at peak efficiency, you can save hundreds of dollars annually while maintaining consistent comfort throughout your home.

Energy Efficiency and Cost Considerations

When performing repairs, we always consider the impact on your furnace’s energy efficiency. A furnace operating at reduced efficiency due to worn components or improper adjustments can significantly increase your heating costs. For example, a dirty flame sensor might cause your furnace to shut down prematurely, leading to short cycling that wastes energy and reduces comfort. By addressing these issues promptly, we help maintain the efficiency ratings your furnace was designed to achieve.

Modern furnaces can achieve efficiency ratings of ninety-five percent or higher, meaning nearly all the fuel consumed converts to usable heat. However, even high-efficiency furnaces require proper maintenance and timely repairs to maintain these performance levels. We evaluate whether repairs will restore your furnace to acceptable efficiency levels or if replacement might be more cost-effective in the long run, always providing honest recommendations based on your specific situation and budget constraints.

Furnace Repair in Northlake, IL

Furnace Repair in Northlake, IL

Furnace Repair ∴ Northlake, IL

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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

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.

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.

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.

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 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.
Choosing Oasis Heating for my furnace and HVAC replacement was one of the best decisions I’ve made as a homeowner in Chicago. From start to finish, the experience was outstanding—with professionalism and genuine care that truly set them apart.

The installation team was not only incredibly skilled but also took the time to ensure every detail was perfect. Their workmanship was remarkable and impeccable, from the initial removal to the seamless setup of my new system. I never once felt rushed—quite the opposite! They patiently walked me through every step and explained exactly what to expect, which made the whole process surprisingly stress-free.

The best part? Their quote was easily the most competitive and reasonable among all the options I considered. Anel, who headed up my project, went above and beyond to help me—listening carefully to my needs and recommending a solution that was truly better than anything else I found. He made sure I understood the benefits of the new system and didn’t hesitate to address any questions I had.

If you’re in Chicago and need HVAC work, I can’t recommend Oasis Heating highly enough. Their team, especially Anel, is professional, honest, and committed to making sure you get the best possible service and solution. Five stars all around!
Been using Oasis for twice a month routine maintenance on my ac/furnace unit and they always are prompt, friendly and have it running great. Prices are reasonable.
Fantastic service! The technician was very nice and educational and informative. He showed up 10 minutes early to the appointment as well and was efficient with my time. Would absolutely recommend to anyone needing any HVAC services.
Oasis installed our furnace a few years back and recently we've been experiencing some issues with a faulty flame sensor. Oasis listened to our concerns, diagnosed the issue, and implemented a fix professionally and economically. They made things right. We received amazing customer service from Natalia and Mike (the owner?) and the on-site technicians Damir and Amir were very thorough and patient describing the issue and potential causes as well as quickly implementing a fix. Oasis does customer service as well as any organization I've dealt with and I can highly recommend them for anyone looking for heating/cooling expertise. Thanks Oasis!
Fernando to the rescue. Oasis is a neighbor of mine and I had heard they were amazing. My furnace wasn’t working so I sent a request after hours and someone got back to me in minutes. Fernando was there at 7am and fixed everything. They are affordable and friendly. I’m was very appreciative of them coming so quickly as the furnace was for my business. I also signed up for the yearly maintenance and they are coming on Monday to do a cleaning. Thanks again.
Great Prompt service and professional team
Joseph was my technician. He was very thorough and conscientious to make sure everything was properly installed. I was very impressed by his professional manner .
Response from the owner:Thank you, Donald, for your kind words! We're glad to hear that Joseph impressed you with his professionalism and thoroughness. Your feedback means a lot to us!
Fernando and Michael were absolutely incredible. They fixed my furnace in just a few hours, walked me through the new features, and even reminded me to buy new filters to fit. I can't recommend them enough.
Response from the owner:Thank you, Madeline! We're so glad to hear that Fernando and Michael provided you with excellent service and support. Your recommendation means a lot to us!
Technician Joseph did a great job in assessing issues with a 25 year old furnace, A/C, & water heater. He was very detailed and thorough in explaining the different options I had with regard to repairing vs. replacing each of them separately or replacing all of them in one shot, while giving me the pros & cons of the different options. He made sure I understood what he was telling me and not rushing explanations.
Response from the owner:Thank you, Michael, for your kind words about Joseph's thorough assessment and his clear explanations. We're glad to hear you felt well-informed about your options!
Joseph the technician was a great help
On my HVAC service. He was very thorough and explained everything professionally. Thank you!
Response from the owner:Thank you, Parris! We appreciate your kind words about Joseph and are glad to hear he provided thorough and professional service. Your feedback means a lot to us!
Oasis Heating & Cooling is always so fantastic, and their technician Joseph was a delight. We have used them for emergency repairs as well as seasonal maintenance. Prices are always reasonable and technicians are friendly and knowledgeable. Highly recommend!
Response from the owner:Thank you, Gabrielle! We're glad to hear you had a great experience with Joseph and appreciate your kind words about our team and services. Your recommendation means a lot to us!
Chris was excellent, showed up on time, explained everything thoroughly, provided estimates as they progressed, and cleaned up afterwards. Would definitely use again!
Response from the owner:Thank you, Anand! We're glad to hear that Chris provided excellent service and kept you informed throughout the process. Your feedback means a lot to us, and we look forward to assisting you again in the future!
Joseph was great, all the techs have always been helpful and informative. Happy with the service they provide.
Response from the owner:Thank you, Danny! We're glad to hear that Joseph and the team have been helpful and informative. Your satisfaction means a lot to us!
They were quick to come out and diagnosis the issue. They arrived on time and Mike explained what was happening and what was being done. Highly recommend!
Response from the owner:Thank you, Tim! We're glad to hear you had a positive experience with our team and that Mike was able to provide clear explanations. Your recommendation means a lot to us!
Oasis was perfect!!!
They were here quickly
They immediately solved my problem. And made some suggestions regarding repairing or replacing
Response from the owner:Thank you, Mark! We're glad to hear that your tech was able to quickly solve your problem and provide helpful suggestions. We appreciate your feedback!
Great job as always! Thanks - Mary and Kevin Galligan
Response from the owner:Thank you, Kevin! We appreciate your kind words and support, and it's great to hear that you and Mary are satisfied with our service.
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.
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!
Furnace maintenance revealed some issues and I decided new vs repair just made more sense based on age. Prices were in line with national averages for the model and installation fees. Oasis is always friendly, responsive and professional!
Response from the owner:Thank you, Patrice, for your kind words! We're glad to hear you found our pricing fair and our team friendly and professional. Your satisfaction is important to us!
Joseph was great. Very nice and informative.
Response from the owner:Thank you, Jacqueline, for your kind words about Joseph; we're glad you had a positive experience!
Oasis has done preventive maintenance on my heater the last two years, and it’s been a very positive experience. Scheduling is easy, they are responsive, and have actual humans involved in the process! (I’m writing this on the heels of dealing with Xfinity, which was a nightmare). The technicians were right on time both times, nice people, and they do good work. Also, they didn’t try to sell me anything I didn’t need, which builds trust. I will use them again next year and in between if anything else comes up that’s in their wheelhouse.
Response from the owner:Thank you, Patty, for your wonderful feedback! We're glad to hear that your experiences with our team have been positive and that our technicians were timely and trustworthy. We appreciate your trust in us and look forward to assisting you again in the future!
Our technician Chris was prepared and easy to work with, as we had two jobs for him. After an estimate, he worked us into his schedule for the next day. He was on time each day and very efficient in how he completed his work. These were both plumbing repairs.

Due to the good work by Chris, when heating season came we had this firm check our heating season. Naim did the initial work and gave us good advice. But several weeks later a leaky humidifier shut down our system. Joseph came out at no charge to get the system working again. There was no charge even though this company had not installed the unit, nor did they cause the problem. Would definitely recommend them to others.
Response from the owner:Thank you, Rick, for your kind words about Chris and his efficient work on your plumbing repairs; we appreciate your trust in us and are glad we could meet your needs! We are here for all of your HVAC and Plumbing needs!
Joseph was great - quickly checked our furnace!
Response from the owner:Thank you, Abigail! We're glad to hear that Joseph provided quick and efficient service for your furnace. Your feedback is greatly appreciated!
Joseph did a great job, heat is working now!
Response from the owner:Thank you, Marcus! We're glad to hear Joseph was able to help and that your heat is working now.
Mark from Oasis was very quick and efficient at checking our furnace and getting the filter replaced. I would use Oasis again the future and would recommend to others.
Response from the owner:Thank you, Ashley! We're glad to hear that Mark provided efficient service with your furnace. We appreciate your recommendation and look forward to serving you again in the future.
Response from the owner:Thank you, Jarrett, for your 5-star review!
Joseph was great! Professional, on time and fast. Provided photos of the work. Would recommend.
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!
Joseph was great! We have had great experiences with oasis
Response from the owner:Thank you, Natalie! We're glad to hear you had a great experience with Joseph and the team at Oasis. Your support means a lot to us!
Joseph was great. Fast, professional and helpful in explaining furnace maintenance, upkeep and longevity.
Response from the owner:Thank you, Lawrence, for your kind words about Joseph's service! We're glad to hear he was fast, professional, and helpful in explaining everything you needed. Your feedback is appreciated!
Their technicians are experienced, courteous, and highly skilled at diagnosing and resolving any heating or cooling issue quickly and efficiently. Whether it’s a new installation, seasonal maintenance, or an urgent repair, they always deliver top-quality work and ensure your system runs smoothly. The team explains every step clearly, offers fair pricing, and never pushes unnecessary services. Their punctuality and attention to detail make the entire experience stress-free and trustworthy — exactly what you want when dealing with your home’s comfort systems.

What truly sets Oasis Heating & Cooling apart is their dedication to customer satisfaction and long-term reliability. The staff are friendly, honest, and genuinely care about providing the best solutions for each home or business. They take pride in their workmanship, and it shows in the consistent comfort and energy efficiency their systems deliver. You can tell they value relationships, not just transactions, treating every job as an opportunity to build trust. For dependable service, expert craftsmanship, and peace of mind year-round, Oasis Heating & Cooling is a company you can confidently count on.
Response from the owner:Thank you, Carol, for your wonderful review! We truly appreciate your recognition of our team's dedication and commitment to providing top-quality service. It's great to hear that you value the relationships we build and the care we put into every job. Your continued support through the years means a lot to us!
Very professional, fast and reliable.
Response from the owner:Thank you, Hassan, for your kind words! We appreciate your recognition of our professionalism and efficiency.
I had a great experience scheduling seasonal maintenance on heating/air units in our building. The scheduler was incredibly helpful in negotiating a date/time that worked best. The technician arrived on schedule and performed services in a very timely way. Will definitely connect with Oasis for future service!!
Response from the owner:Thank you, James, for your wonderful feedback! We're glad to hear that our scheduler was helpful and that the technician met your expectations. We look forward to assisting you with future services at Oasis!
Very professional and solved my problem.
Response from the owner:Thank you, Khoi, for your kind words about our professionalism; we're glad we could help solve your problem!
Joseph came here to replace an inducter fan . He explained everything and completed it very efficiently. There were no hidden charges. He was very professional . A+ experience
Response from the owner:Thank you for your wonderful feedback! We're glad to hear that Joseph provided you with a clear explanation and efficient service. Your satisfaction means a lot to us!
Chris did a great job in helping to replace a failed booster pump in my townhome. He was timely, worked hard and answered all of my questions along the way. Highly recommend Chris and Oasis for all things plumbing related
Response from the owner:Thank you, Cody, for your kind words! We're glad to hear Chris provided you with excellent service and answered all your questions. Your recommendation means a lot to us!
I have had outstanding service from all technicians who have been to my home. Damir was there for the initial assessment and was able to identify that there was carbon monoxide leaking from my furnace. He explained everything so well, and was able to arrange for a furnace to be installed within a few days. Vaha and Anel and their crew came to install both an air conditioner and furnace. They were on time, professional and got the entire job finished in less than 4 hours. Highly recommend Oasis plumbing, heating and cooling -
Response from the owner:Thank you, Donna, for your wonderful feedback! We're so glad to hear that Damir, Vaha, and Anel provided you with outstanding service and professionalism. Your recommendation means a lot to us!
Joseph from Oasis Heating did a fantastic job servicing my furnace for the winter. He was incredibly thorough and took the time to explain everything clearly so I understood what was being done. He replaced both the humidifier filter and the air filter, and made sure everything was working perfectly before he left. Professional, friendly, and knowledgeable — I’ll definitely continue to use Oasis Heating and request Joseph in the future. Highly recommend!
Response from the owner:Thank you, J, for your wonderful review! We're glad to hear that Joseph provided such thorough and friendly service, and we appreciate your recommendation. Looking forward to assisting you again in the future!
Always on time, clean, and courteous. And of course, job well done. No complaints for 10+ years.
Response from the owner:Thank you, Nora! We truly appreciate your loyalty and are glad to hear that you’ve consistently had a positive experience with us over the years.
Mark did a great job. He checked the pressure, washed the system and provided a clean filter.
Response from the owner:Thank you, Vanessa! We're glad to hear that Mark's efforts made a positive impact. Your feedback means a lot to us!
It was a weekend. It was not easy to get technicians. Oasis responded & arranged right away to come & check the problems of my gas heater for the house. Instantly, he pointed out the problem & walked through all the way through until the heater came back to function with honest & reasonable price, good people.
Response from the owner:Thank you, Joseph, for your kind words! We're glad to hear that our team was able to assist you promptly and effectively. Your appreciation means a lot to us!
Professional and courteous service at a reasonable price.
Response from the owner:Thank you, Becky, for your kind words about our professional and courteous service; we appreciate your feedback!
Highly HIGHLY recommend Oasis! Very straight forward, good at communicating and informing, and trustworthy.

We used to use 4 Seasons religiously but moving forward this is 100% where we will turn to for any needs.

Thank you so much Danny and company, you guys are very appreciated.
Response from the owner:Thank you, Carlisle! We're so glad to hear you had a great experience with us. We appreciate your recommendation and are excited to be your go-to choice moving forward. Your kind words about Danny and the team mean a lot!
We’ve been using Oasis for our HVAC needs for years including the installation of our rooftop unit. Oasis makes everything easy from scheduling to payment. We recently just had the HVAC serviced by Joseph and he was very professional and thorough with his explanations. Highly recommended company.
Response from the owner:Thank you, Jisoo, for your wonderful review! We appreciate your loyalty and are glad to hear that Joseph provided you with professional service. Your recommendation means a lot to us!
They did a great job! Cleaned up everything, were on time, and did a great job
update 10/30 used them again since my heater stopped working. they joseph came in to assess what was wrong and walked me through what he thought the problem was. ordered the parts and two days later Danny came to replace what they thought the issue was. the analysis was right and i have heat again! they were accurate
Response from the owner:Thank you, Daniel! We're so glad to hear you were pleased with the service. Your feedback means a lot to us!
I had used Oasis for a new Furnace and AC system. Mike, Michael and Fernando were very professional. I wanted to use them as they had good reviews from other people in my building. They were clean and explained what they were doing. Very satisfied customer.
Response from the owner:Thank you, Antoinette! We're glad to hear you had a great experience with Mike, Michael, and Fernando. Your satisfaction means a lot to us, and we appreciate your trust in our services.
Highly recommend! Chris did an amazing job. He was thorough, kind, clean and explained everything throughout the process.
Response from the owner:Thank you, Roxanne! We're so glad to hear that Chris made your experience positive with his thoroughness and kindness. Your recommendation means a lot to us!
Response from the owner:Thank you, Bill, for your 5-star rating! We appreciate your support.
Had Oasis come out for annual furnace tune-up. Joseph explained everything he was doing and told us his thoughts and options as our furnace is an older one. Highly recommend this company.
Response from the owner:Thank you, Barb! We appreciate your kind words and are glad Joseph was able to provide you with thorough explanations and options for your furnace. Your recommendation means a lot to us!
Vaha and Anel installed my new HVAC system THIS MORNING! It took them less than 4 hours. They were quiet, efficient and effective. They treated my dog, my Mom and I with the utmost respect. Upon completion they walked me through the furnace, the condenser and my programmable thermostat. Mike got back to me right away and we were scheduled within 48 hours.
Response from the owner:Thank you, Rachel! We appreciate your kind words about Vaha, Anel, and Mike. It's great to hear that you had a positive experience with the installation and that they took the time to walk you through everything. Your satisfaction means a lot to us!
Danny was did a great job. Excellent service and he explained everything to me. Highly recommend.
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!
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