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Oasis Plumbing, Heating & Cooling Offers Seasonal Maintenance Plans

Professional Furnace Installation Services for Winnetka Homes

When temperatures plummet during harsh Illinois winters, your furnace becomes the heart of your home’s comfort system. At Oasis Plumbing, Heating & Cooling, we understand that installing a new furnace represents a significant investment in your property’s value and your family’s wellbeing. Our comprehensive furnace installation process ensures optimal performance, energy efficiency, and long-term reliability for homeowners throughout Winnetka and the surrounding areas.

The decision to replace an aging furnace or install a new system requires careful consideration of multiple factors including your home’s square footage, insulation quality, existing ductwork condition, and specific heating requirements. We begin every installation project with a thorough evaluation of your property to determine the most appropriate furnace size and configuration. This detailed assessment prevents the common problems associated with improperly sized equipment, such as short cycling, uneven heating, and excessive energy consumption.

Understanding Modern Furnace Technology and Options

Today’s furnace technology has evolved dramatically from the basic heating systems of previous decades. High-efficiency condensing furnaces now achieve Annual Fuel Utilization Efficiency ratings exceeding ninety-five percent, extracting maximum heat from every cubic foot of natural gas consumed. These advanced systems incorporate variable-speed blowers that adjust airflow based on heating demand, providing more consistent temperatures while reducing energy waste. Two-stage and modulating burners further enhance comfort by eliminating the temperature swings associated with single-stage equipment.

Our installation expertise extends across all major furnace types and brands, allowing us to match each Winnetka household with the ideal heating solution. Gas furnaces remain the most popular choice in our region due to natural gas availability and cost-effectiveness. However, we also install electric furnaces for homes without gas service and dual-fuel systems that combine a heat pump with a gas furnace for maximum efficiency across varying outdoor temperatures. 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.

The Comprehensive Installation Process

Professional furnace installation involves far more than simply swapping old equipment for new. Our certified technicians follow a meticulous multi-step process that begins with protecting your home’s interior through the use of drop cloths, floor runners, and dust barriers. We carefully remove the existing furnace while evaluating all connected components including the plenum, return air drops, supply runs, and venting systems. Any damaged or inadequate ductwork sections are repaired or replaced to ensure proper airflow distribution throughout your home.

The physical installation of your new furnace requires precise attention to manufacturer specifications and local building codes. We level the equipment platform, secure all electrical connections, properly size and install gas piping, and configure the venting system for safe exhaust removal. Modern furnaces often require modifications to existing infrastructure, such as installing dedicated electrical circuits for variable-speed motors or adding condensate drainage lines for high-efficiency models. Our highly-trained technicians, and responsive support staff, offer customized solutions to fit your budget while ensuring every installation meets or exceeds industry standards.

Essential Components of a Quality Installation

  • Load calculation analysis: We perform detailed heat loss calculations considering your home’s insulation, window efficiency, and air infiltration rates
  • Ductwork evaluation: Our team inspects and tests existing ductwork for leaks, restrictions, and proper sizing to maximize system performance
  • Safety system verification: We thoroughly test all safety controls including limit switches, flame sensors, and carbon monoxide detectors

Proper thermostat selection and placement significantly impact both comfort and efficiency. We install programmable and smart thermostats that allow precise temperature scheduling, remote access capabilities, and integration with whole-home automation systems. The thermostat location must avoid direct sunlight, drafts, and heat sources that could cause false readings and inefficient operation.

Maximizing Energy Efficiency and Performance

Energy efficiency considerations extend beyond the furnace itself to encompass the entire heating system. We seal all ductwork connections with mastic or metal-backed tape to eliminate air leakage that can waste twenty to thirty percent of heated air. Insulating ducts in unconditioned spaces like attics and crawlspaces prevents heat loss during distribution. Adding zoning systems allows different areas of your home to maintain independent temperatures, reducing energy consumption in unused spaces while maintaining comfort where needed.

Serving our customers in Chicago and the Northern Suburbs for over 20 years, we’ve witnessed firsthand how proper installation techniques dramatically impact long-term performance. A correctly sized and installed furnace typically operates more quietly, maintains more consistent temperatures, and requires fewer repairs throughout its service life. We also configure your new system for optimal humidity control, as winter heating can create uncomfortably dry indoor air without proper humidification.

Post-Installation Support and Maintenance

Following installation, we conduct comprehensive system commissioning to verify proper operation across all heating stages and safety functions. This includes measuring gas pressure, checking electrical amp draws, testing temperature rise across the heat exchanger, and adjusting blower speeds for optimal comfort and efficiency. We document all readings and provide detailed operational instructions so you understand your new system’s features and maintenance requirements.

Regular maintenance preserves your installation warranty and extends equipment lifespan significantly. We recommend annual tune-ups that include cleaning burners, inspecting heat exchangers for cracks or corrosion, replacing filters, and lubricating moving parts. Our maintenance programs provide priority service, discounted repairs, and peace of mind knowing your heating system will perform reliably when you need it most.

Making the Right Investment for Your Winnetka Home

Selecting the right furnace and ensuring professional installation protects your investment while providing years of efficient, reliable heating. Variable-speed systems offer superior comfort and humidity control but require higher initial investment. Single-stage furnaces cost less upfront but may result in higher operating expenses and less consistent temperatures. We help you evaluate total ownership costs including purchase price, installation complexity, expected energy savings, and anticipated maintenance requirements.

The timing of your furnace installation also matters. While emergency replacements sometimes prove unavoidable, planning your installation during fall months allows unhurried equipment selection and scheduling flexibility. This proactive approach often results in better pricing and ensures your heating system is fully operational before winter’s coldest days arrive. Our extensive experience throughout Winnetka’s diverse neighborhoods, from older homes near the lakefront to newer construction in western areas, enables us to anticipate and address unique installation challenges specific to your property’s architecture and mechanical systems.

Your new furnace represents one of your home’s most critical mechanical systems, directly impacting comfort, safety, and monthly utility expenses for the next fifteen to twenty years. At Oasis Plumbing, Heating & Cooling, we combine technical expertise with commitment to customer satisfaction, ensuring your furnace installation exceeds expectations while providing dependable comfort throughout countless Chicago winters ahead.

Furnace Installation in Winnetka, IL

Furnace Installation in Winnetka, IL

Furnace Installation ∴ Winnetka, 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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Featured Five-Star
Customer Reviews

The folks with Oasis showed up right on time and replaced my entire furnace and condenser in about 4.5 hours. I had just redone my laundry room where the furnace is and they took great care not to damage anything. Overall very happy with the service and very happy with how respectful the installers were.

Josh D.

Oasis was incredibly responsive and efficient! My call to them on a Friday night during a cold spell was returned within 10 minutes and he scheduled a tech to come to my home at 7 the following morning. At 7 the tech was there, examined my furnace confirming that a new motor was necessary. He searched for the part, sent a quote and returned with the motor by noon the same day to install it. You can’t beat that!!! I will be using Oasis for all my future furnace and A/C needs.

Gayle V.

Oasis has always been great to work with and their staff are quick and efficient if issues arise. When our air conditioning broke down during the heat of the summer, they provided a quick replacement at a competitive price. Their staff are always extremely kind, respectful, and knowledgeable.

Sam C.

Oasis is great! My furnace is almost 30 years old and for a reasonable price they were able to do the repairs. First Danny came to evaluate. He showed me what was wrong. They had to order the necessary parts to fix it. Today Hani and Fernando came to do the repair. They were efficient and courteous. I will definitely use Oasis in the future.

Emily H.

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

Megan R.

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.

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.
Joseph and Kwee showed up on time and were very polite. We promptly went to basement where the PVC pipe for my HVAC drainage had snapped in half. Joseph took a look and told me exactly how he was going to fix/replace the broken pipe. I was in a rush because I was on a client call when they arrived (my fault for not checking my calendar). As I ran upstairs, Joseph asked if I wanted to review pricing, which would have slipped my mind had he not stopped me. I’m very grateful he took the initiative to do that. I was surprised at the price of $225 as other companies had quoted me much higher prices. Once that was agreed upon, Joseph and Kwee got to work and were finished in about 20 minutes. The process was seamless and they were careful about being quiet as they were leaving to not disrupt my call. I will definitely be calling Oasis for my next plumbing job. Before and after pics attached. Thank you, guys!
Bill Nguyen
1 day ago
We have relied on Oasis for years, installing our furnace, maintaining our furnace and a/c, and cleaning our ducts. They are always professional and reliable.
Luis Quinones
4 days ago
Super responsive, great service. Everyone was incredibly nice throughout. Couldn’t ask for much more.
Wayne Duan
4 days ago
I've been using Oasis for my annual HVAC maintenance, as well as various HVAC and water heater repairs for the past ~5 years. They are consistently prompt, polite, and efficient. Every technician has been professional, reliable, and clear in their communication. Highly recommend!"
We had Oasis come out to identify a bathroom tub leak. The two guys were helpful, very friendly, and explained everything that was going on in great detail. They really educated us on what our issue was and identified the potential problems in a matter of minutes. Would def recommend.
Michelle Drake
5 days ago
Timely, professional and informative.
Kaitlin Meyer
5 days ago
Mark G was great. Highly recommend
Spencer Veltema
5 days ago
Oasis Heating and Cooling are definitely the people I recommend for HVAC situations. They’ll be honest with you about what’s going on and what your options are. They may not be the absolute cheapest option but you get what you pay for, and one visit from them compared to multiple visits from someone who is dirt cheap is going to be worth it in the long run.
Matty H
5 days ago
Joseph was very knowledgeable and professional. He explained the issue with my A/C and fixed it promptly, even tackling an unrelated request during the same visit.
Kelsey Rayford
1 week ago
Super detail oriented and fair pricing. Will use them every season!
Response from the owner:Thank you, Kelsey! We appreciate your kind words and are glad to hear you value our detail-oriented approach and fair pricing. Looking forward to serving you every season!
Melanie Makhija
1 week ago
Response from the owner:Thank you for your review, Melanie! We appreciate your support and look forward to serving you again.
Billie Morrow
1 week ago
On time, very professional, explained everything and cleaned up nicely when the job was completed
Response from the owner:Thank you, Billie! We appreciate your kind words about our professionalism and attention to detail. It's great to know you had a positive experience.
Courtney Kendal
1 week ago
Response from the owner:Thank you, Courtney, for taking the time to leave a review. We appreciate your support!
Technicians Joseph and Bill were really great! Punctual, friendly, explained everything in a way that was easy to understand. I highly recommend.
Response from the owner:Thank you, Colette! We're glad to hear that Joseph and Bill provided you with great service and made everything easy to understand. Your recommendation means a lot to us!
Rossy Jimenez
1 week ago
Response from the owner:Thank you, Rossy, for taking the time to leave a review. Your feedback is appreciated!
Vanessa Banks
1 week ago
Joseph did a great job. My AC unit is on its last leg. He explained in detail the problem and gave me an estimate of the approximate cost of a new unit installation.
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!
Deanna Charles
2 weeks ago
Response from the owner:Thank you, Deanna, for your review! We appreciate your support and look forward to serving you again.
searah deysach
2 weeks ago
We've used Oasis for years. They come when they say they will, the are friendly and they get the job done, usually very quickly !
Response from the owner:Thank you, Searah! We appreciate your loyalty and are glad to hear that our team consistently meets your expectations with friendly and efficient service.
Frank Bruno
2 weeks ago
Danny was professional and efficient. He identified the issue immediately. We have used Oasis for a very long time. We keep coming back. Always great!
Response from the owner:Thank you, Frank! We're glad to hear about your positive experience with Danny and appreciate your loyalty to Oasis. Looking forward to serving you again!
I have known Mike for over 25+ years. His crew has installed new heating and cooling systems for me, with vents and ductwork installation, hot water heaters and has serviced and maintained same over the years. They are reliable and always available when you need them. Recently, he replaced the heating and cooling system at my parent's house. He came out right away to assess and provide an estimate for the work and 3 days later my parents had their new system to initiate the winter season worry-free. His crew is punctual, very professional and very knowledgeable in their work. I recommend Oasis without reservation.
Response from the owner:Thank you, Leticia! We truly appreciate your kind words and loyalty over the years. It's great to hear that Mike and the team have consistently met your needs and those of your parents. Your recommendation means a lot to us!
Neela Persaud
2 weeks ago
We had a new AC and furnace replaced in our condo. The work was completed on a Monday. On Saturday morning, there was a lot of water coming down into the utility closet. We called in to the office immediately and since it was a holiday weekend, there was no availability until Tuesday morning. Saturday evening, as the dripping continued, it dripped into the pan the unit was sitting in, causing the safety switch to shut down the AC. We texted Naim, the estimator, who reached out to the GM. On Sunday morning, Mike and Alan came out to diagnose the problem. They found out that the new installation was not the problem. The water was coming from the condo unit above us. They went above and beyond by going to the unit and cleaning out the blocked pipe that was the source of the problem. This was done at no charge to us; pretty sure not yo the neighbors upstairs either. I would highly recommend Oasis.
Response from the owner:Thank you, Neela, for your wonderful review! We're glad to hear that Naim, Mike, and Alan were able to assist you promptly and go the extra mile to resolve the issue. Your recommendation means a lot to us!
Sarah Herweg
2 weeks ago
We had Joseph come out to do maintenance on a bad capacitor - he was very communicative, quick and anticipated what it was based on my description on the phone! Really appreciate the excellent service
Response from the owner:Thank you so much, Sarah! We truly appreciate your support and are glad you had a great experience. We're here for all of your HVAC and Plumbing needs!
Tony Werner
2 weeks ago
Joseph was great. Super helpful and totally clear. Would def use again.
Response from the owner:Thank you, Tony! We're glad to hear that Joseph was helpful and clear in assisting you. We look forward to serving you again!
michael parker
2 weeks ago
Easy to schedule and coordinate, service tech arrived on time and performed the necessary work in a timely matter, making only one recommendation for a minor component replacement in 12 months. Friendly and polite. I will use Oasis again next time need service or a system checkout!
Response from the owner:Thank you, Michael! We're glad to hear that scheduling was easy and that our service tech was friendly and efficient. We appreciate your trust in Oasis and look forward to assisting you again in the future!
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$77 Off Repair

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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.

Use By
09/30/2026
$99 Drain Clearing

Restore Proper Flow With Expert Drain Service.

Drain clearing offer valid for one residential drain. Additional charges may apply for main line stoppages, difficult access, multiple drains, or additional services. Repairs not included. Cannot be combined with other offers.

Use By
09/30/2026
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