Tankless Water Heater Replacement in Addison, IL

Oasis Plumbing, Heating & Cooling Offers Seasonal Maintenance Plans

Expert Tankless Water Heater Replacement Services in Addison, IL

Are you tired of running out of hot water during your morning shower? Is your current water heater struggling to keep up with your household’s demands? It might be time to consider a tankless water heater replacement. At Oasis Plumbing, Heating & Cooling, we specialize in providing top-notch tankless water heater replacement services to homeowners in Addison, IL and the surrounding areas. With over 20 years of experience serving customers in Chicago and the Northern Suburbs, our highly-trained technicians have the expertise to deliver reliable and efficient hot water solutions tailored to your needs.

Tankless water heaters, also known as on-demand water heaters, are quickly gaining popularity among homeowners due to their numerous benefits. Unlike traditional tank-style water heaters that constantly heat and store a large volume of water, tankless systems heat water only when needed. This innovative technology offers several advantages, including:

Endless Hot Water Supply: Say goodbye to cold showers! Tankless water heaters provide an endless supply of hot water, ensuring that you never run out, even during peak usage times.
Energy Efficiency: By heating water on-demand, tankless systems eliminate standby energy losses associated with storing hot water in a tank. This can lead to significant energy savings of up to 34% compared to traditional water heaters, according to the U.S. Department of Energy.
Space-Saving Design: Tankless water heaters have a compact, wall-mounted design that frees up valuable floor space in your home. This is particularly beneficial for smaller homes or apartments where every square foot counts.

The Oasis Plumbing, Heating & Cooling Difference

At Oasis Plumbing, Heating & Cooling, we pride ourselves on delivering exceptional tankless water heater replacement services that exceed our customers’ expectations. Our team of certified technicians undergoes rigorous training to stay up-to-date with the latest advancements in tankless technology. We work with leading manufacturers to ensure that we install only the highest quality products, backed by industry-leading warranties.

When you choose Oasis Plumbing, Heating & Cooling for your tankless water heater replacement, you can expect:

Comprehensive Consultation: Our experts will assess your home’s unique hot water needs, taking into account factors such as the number of bathrooms, appliances, and peak usage times. Based on this assessment, we’ll recommend the ideal tankless system to meet your requirements.
Professional Installation: Our skilled technicians will handle every aspect of the installation process, from removing your old water heater to installing and configuring your new tankless unit. We adhere to strict safety standards and local building codes to ensure a flawless and efficient installation.
Exceptional Customer Service: At Oasis Plumbing, Heating & Cooling, we believe in putting our customers first. Our friendly and responsive support staff is always ready to answer your questions, address your concerns, and provide the guidance you need to make informed decisions about your home’s hot water needs.

Tankless Water Heater Maintenance and Repair

While tankless water heaters are known for their durability and low maintenance requirements, regular servicing is still essential to ensure optimal performance and longevity. Oasis Plumbing, Heating & Cooling offers comprehensive tankless water heater maintenance and repair services to keep your system running smoothly.

Our maintenance services include thorough inspections, cleaning of critical components, and preventive measures to address potential issues before they lead to costly repairs. Should your tankless water heater ever experience a problem, our skilled technicians are just a phone call away. We offer prompt and reliable repair services, using only genuine replacement parts to restore your system to peak performance.

Why Choose Tankless?

In addition to the benefits mentioned earlier, tankless water heaters offer several other advantages that make them an attractive choice for Addison, IL homeowners:

Longer Lifespan: With proper maintenance, tankless water heaters can last up to 20 years or more, compared to the 10-15 year lifespan of traditional tank-style units.
Reduced Risk of Water Damage: Since tankless systems don’t store large volumes of water, the risk of catastrophic leaks and water damage is significantly reduced.
Customizable Options: Tankless water heaters come in a variety of sizes and capacities, allowing you to choose a system that perfectly matches your household’s hot water demands.

As the demand for energy-efficient and convenient hot water solutions continues to grow, tankless water heaters are poised to become the preferred choice for homeowners in Addison, IL and beyond. Industry experts predict that the global tankless water heater market will experience significant growth in the coming years, driven by increasing consumer awareness and the desire for more sustainable and cost-effective home appliances.

Experience the Oasis Plumbing, Heating & Cooling Advantage

Don’t settle for a subpar hot water experience. Trust the experts at Oasis Plumbing, Heating & Cooling to provide you with a tankless water heater replacement solution that delivers endless hot water, energy savings, and peace of mind. With our unparalleled expertise, top-quality products, and commitment to customer satisfaction, we are your go-to partner for all your water heating needs in Addison, IL.

Contact Oasis Plumbing, Heating & Cooling today to schedule your consultation and take the first step towards enjoying the numerous benefits of a tankless water heater in your home. Our friendly and knowledgeable staff is ready to answer any questions you may have and help you make an informed decision that best suits your needs and budget.

Experience the difference that 20 years of expertise and a dedication to excellence can make. Choose Oasis Plumbing, Heating & Cooling for your tankless water heater replacement in Addison, IL, and enjoy the comfort, convenience, and efficiency that you deserve.

Tankless Water Heater Replacement in Addison, IL

Tankless Water Heater Replacement ∴ Addison, IL

Featured Five-Star

Customer Reviews

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 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.

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.

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.

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 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.

Excellent

Oasis Heating and Cooling4.9

Based on 1166 reviews

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D Chen

1 day ago

I called, and my water heater was repaired within two hours — amazing service! 👍🎉 Very professional team! They explained everything clearly, and I’m very satisfied with the AC and water heater repair service.

kamil jankowski

Danny and Joseph were great! The diagnosed the problem and fixed quickly.

Patrick Theiler

Joseph was great! Friendly, knowledgeable, professional!

Marcia Kondo

2 days 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.

Anna Palumbo

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.

Paul Lueders

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.

marisa groenweghe

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.

Lucy Kaplan

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

Joseph was on time, explained everything and had the system working in about 30 minutes.

Stephanie Block

3 days 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!!

thomas foley

4 days ago

Mike M

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

Very prompt and straightforward team - appreciate the responsiveness!

Monica Hying

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

5 days 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!

ellen egan

1 week 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

Quick and knowledgeable very satisfied with the service

A R

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.

George C

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

Great job as always!

Response from the owner:Thank you, Eer! We appreciate your kind words and continued support.

Karen Otto

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

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

2 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

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

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

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!

Christopher Korten

Joseph was great and very helpful

Response from the owner:Thank you, Christopher! We're glad to hear that Joseph provided great and helpful service. Your feedback is appreciated!

Alex Freidin

Excellent service. Very professional techs, helped explain things very clearly, and efficient. Highly recommend this service to those in the Chicago area.

Response from the owner:Thank you, Alex! We're glad to hear you had a great experience with our team. Your recommendation means a lot to us!

Rebecca Ravenna

Always excellent

Response from the owner:Thank you, Rebecca! We appreciate your kind words and are glad to hear that you consistently have an excellent experience.

Ryan Swartzendruber

Joseph and Mark were great

Response from the owner:Thank you, Ryan! We're glad to hear that Joseph and Mark made a positive impression. We appreciate your feedback!

James Turner

Simply an awesome local company! Extremely responsive, knowledgeable honest technicians. We have used them for years for smaller system checks and minor problems. Most recently we had some larger repairs done by a team including Danny and Chris. This is a solid, professional business - I would recommend them wholeheartedly for any heating, cooling or plumbing problem! So great to have a "go-to" when needed!

Response from the owner:Thank you, James! We appreciate your kind words and are glad to hear that our team, including Danny and Chris, has consistently provided you with great service. It's wonderful to have you as a loyal customer, and we're here whenever you need us!

Jason Dirkx

Joseph came out for regular maintenance on the AC and was great giving background and explaining lifecycle of the unit!

Response from the owner:Thank you, Jason! We're glad to hear that Joseph provided you with great service and helpful information about your AC unit. Your satisfaction is our priority!

Allison Nimick

I’ve had great experiences with Oasis, they service my furnace and AC each year and do a great job and are very communicative, efficient, and polite! Just adding another note - cannot recommend Oasis enough, Joseph was just out to service my AC and I was very happy and impressed with his timeliness, communication, and explanation of the state of my AC system!

Response from the owner:Thank you, Allison, for your wonderful feedback! We're so glad to hear you have great experiences with our team and appreciate your kind words about their communication and efficiency. We are here for all of your HVAC and Plumbing needs!

Bethany Scott

Efficient, knowledgeable and respectful! Always appreciate our Oasis service!

Response from the owner:Thank you, Bethany! We're glad to hear you appreciate our efficient and knowledgeable service. Your support means a lot to us!

Rebecca Sims

We had a new air conditioner/furnace installed in the upstairs of our home. We called Oasis to get a second quote and were very impressed with their professionalism and customer service. They gave us 3 different options and had the best pricing. They were on time and very efficient. We would definitely use them again for service!

Response from the owner:Thank you, Rebecca! We're glad to hear you were impressed with our professionalism and customer service. It's great to know that you found our options and pricing to your satisfaction. We look forward to assisting you again in the future!

Joanie Gallagher

They showed up on time and were friendly and shared all details.

Response from the owner:Thank you, Joanie, for your kind words! We're glad to hear that our team was punctual and friendly while keeping you informed. We appreciate your feedback!

Carol Triggiano

Response from the owner:Thank you, Carol, for your feedback! We appreciate your support.

Stacy Friedman

3 weeks ago

They were prompt, professional and polite.

Response from the owner:Thank you, Stacy! We appreciate your kind words about our team's promptness, professionalism, and politeness. Your feedback means a lot to us!

Celeste Chamberland

Great experience with Steve and Amer, Oasis plumbers!! I had a leaky pipe that needed urgent attention and Steve and Amer arrived within an hour of me calling Oasis. They diagnosed the problem immediately, gave me a clear and honest estimate of the cost of repair and proceeded to complete the repair quickly and professionally. They were both extremely knowledgeable and took the time to explain each step of the process. I will definitely be calling Oasis for all my future plumbing needs. Everyone at this company is responsive, friendly, and knowledgeable. Thanks, Steve and Amer, for doing such an excellent job at such a reasonable cost.

Response from the owner:Thank you, Celeste! We're glad to hear that Chris made such a positive impression. Your recommendation means a lot to us and we look forward to working with you again in the future!

Andrew Snyder

Great communication and very professional throughout the entire process.

Response from the owner:Thank you, Andrew! We appreciate your kind words about our communication and professionalism.

Cory N

Oasis is always in time, very courteous and professional. They are also very fare on pricing for their service!

Response from the owner:Thank you for the fantastic review Cory! We loved being of service to you and hope we can assist you again soon.

Keith Forshaw

I have had very good experiences with Mike and his team over the years at Oasis HVAC. A few years ago when we first moved into the house, another HVAC company provided maintenance to the system while disconnecting the overflow drain switch on the AC coil pan. Therefore the unit ran for days and flooded our downstairs DEN. Oasis saved the day, reinstalling the switch and fixing the system. Now our old system is 19 years old and makes no sense to pay $1,000 to fix it so yesterday we decided to replace it. Mike came out to look at the old central air and heating furnace unit which is in the upstairs of our bungalow. Seated horizontally, it was going to take a lot of work to get the old unit out and the new unit in. We selected the American Standard (highest rated in the industry a.k.a. Trane) 80K BTU 2 stage furnace/central air and an American Standard 3.5 ton 13 seer A/C unit outside. The team of 5 guys came out to install it just 4 days after signing the contract promptly at 7:00am and completed the entire job at 2:30pm. They had originally thought it would take a day and a half. I also elected the annual maintenance which they come out 2 times per year and will also cover labor, along with manufacturer's hardware warranty for 10 years. The units are EXTREMELY quiet, you cannot even hear them run. Especially being outside and entertaining the patio. My electric bills are also expected to decrease significantly. The 19 year old previous system originally purchased from Sears was costing an additional $400/month just to run in the summer to to mention the old freon was $220.00 per pound. I am VERY satisfied with Oasis HVAC, quality product, quality service, attention to detail, professional and courteous. They also don't change extra for after hours emergency maintenance and have been easy to reach in the time of need and arrive at the house in 1-2 hours after creating an appointment. Oasis HVAC comes highly recommended from a highly satisfied customer.

Response from the owner:Thank you, Keith, for your wonderful feedback and for trusting Mike and our team at Oasis with your HVAC needs over the years; we're delighted to hear about your positive experiences and are thrilled that you're satisfied with your new system! We look forward to continuing to work with you!

Martin Kehe

Oasis is an outstanding HVAC contractor. We've used them for our home since 2015 and they always offer quick, reliable service. On their recent AC spring maintenance call at our 2-flat they identified that both of our 13-year-old water heaters are were leaking and in need of replacement, as was one of our AC units. They scheduled the work in less than a week and did the 3 jobs in about 5 hours from beginning to end. We received a good price and the work was well done. We highly recommend Oasis!

Response from the owner:Thank you, Martin, for your wonderful review! We're grateful for your continued trust in Oasis and are glad to hear you’re pleased with our service and the recent furnace upgrade. It's been a pleasure to work with you throughout the years!

Oliver Batchelor

Very timely and professional!

Response from the owner:Thank you, Oliver, for your kind words! We appreciate your recognition of our team's professionalism and timeliness.

Rob Michaels

Amazing and efficient service. We’ve been using Oasis exclusively for eleven years. After purchasing a house with outdated mechanicals we’ve used them for several replacements and checkups. They are reasonable, friendly, and professional.

Response from the owner:Thank you, Rob! We truly appreciate your loyalty over the past eleven years and are glad to hear you’ve had such positive experiences with our service. Your kind words about our team mean a lot to us!

Romy Connor

I used Oasis for both a/c maintenance and a water heater flushing. Guys were on time and very professional! Fair quote on both services..and didn't try to upsell me on things others had tried to do-luckily I have a friend that's a plumber and said what was needed. Will definitely be calling Oasis for future plumbing needs! Appreciate the honesty. One other company gave me a ridiculous quote..for something I didn't need-won't mention any names-but all reviews mentioned how high their pricing was-do some research!

Response from the owner:Thank you, Romy, for your kind words and for trusting Oasis with your a/c maintenance and water heater flushing; we appreciate your feedback and look forward to assisting you with any future plumbing needs! We are here for all of your HVAC and Plumbing Needs!

Owen Worley

We’ve been relying on Oasis for years to keep the two HVAC systems in our 2 flat running smoothly and reliably. It’s a great piece of mind to know that coolant levels have been checked and furnaces have been examined before each season.

Response from the owner:Thank you, Owen! We're grateful for your long-term trust in Oasis to maintain your HVAC systems. It’s wonderful to know that our services give you peace of mind.

Ted Fancher

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

Franck Brice

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

Jim B

Joseph was professional and fast - highly recommend!

Response from the owner:Thank you, Jim! We appreciate your recommendation and are glad to hear that Joseph provided you with professional and efficient service.

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