Tankless Repair Service You can Count On

At Paragon Mechanical, Inc. we take tremendous pride in being proven experts in the area of tankless water heaters. Our team of well-respected technicians and installers are unsurpassed in their training and their craftsmanship when it comes to installation and tankless repair. What truly sets our team apart is that we actually enjoy the challenges of repairing water heaters and committed to your complete satisfaction. To better serve you, we have over 500 tankless heater parts on our truck and over 5,000 in stock. We are prepared to fix your water heater quickly and accurately every time.  

"THESE GUYS ARRIVE FASTER THAN JIMMY JOHN'S!" -Mickey H.

We Provide Tankless Repair for All Major Brands

Our technicians are well-trained in all major tankless water heater brands including Noritz, Takagi, A.O. Smith, Navien, Rinnai, Bradford White, Eternal, State, Rheem, Rinnai, Intellihot, and trutankless.

Tankless Heater Training Makes the Difference

The industry of tankless water heaters is continually changing at a rapid pace. The innovative changes in gas valve function to heater designs alone are unequaled. At Paragon, we pay meticulous attention to all the advances in technology and provide countless hours on ongoing training to our employee partners. Our technicians have logged over 5,689 training hours to date. This, of course, leads to better performance when out servicing our valued customers.

The secret to fast response time when repairing your tankless water heater? Have an exemplary team of service technicians who will always arrive on time, quickly assess your problem, and dedicate themselves to providing a reliable and accurate solution. We are proud of our response time record and continually are working toward improvement.  

Tankless Service Done Right

The truth behind Paragon’s success is our team of tankless repair technicians. They are trained on all major brands and stay abreast of industry updates. They are passionate abut resolving your tankless water heater issues. So much so, they won’t rest until you are pleased with the results.  From incorrectly installed new equipment, no water coming out of the faucet, or hot water only coming out warm at best, our technicians have seen it all. With over 23,345 tankless water heater problems resolved, we have the experience and expertise you deserve. Call Paragon Mechanical, Inc. for all your tankless water heater repairs (847) 321-9428.

  • Common Problems +

    Newly Installed Equipment Malfunction

    There are many service calls in which we receive for recently installed hot water heating equipment that is not working as expected. Most of these service calls are a result of poor installation of the newly installed hot water heating equipment.

    If this problem is corrected early enough the life of the equipment could possibly not be negatively affected. At Paragon Mechanical we prides ourselves on expert installation of hot water heating equipment for each and every installation. See our domestic hot water installation services for more detail.


    No Water Coming Out of Faucet

    In our Chicago climate we experience extremely cold weather that can occasionally cause a main water line or incorrectly installed tankless water heater to freeze and prevent water from flowing.

    If this is the case then try to find the place which your pipe or tankless heater is frozen and thaw as soon as possible to prevent the pipe from bursting. You can typically thaw a pipe by using a hair dryer however if your not comfortable feel free to call a trained Paragon professional to correct this problem for you correctly and promptly.


    Hot Water is NOT hot and warm at best

    For a tankless water heater it is important that the water flow through the hot line only through the tankless water heater. If you have a mixing valve in the house which is bleeding water through the valve and into the hot line you could get cooler water or times when you completely loose the hot water.

    You may need to have the valve serviced by a trained Paragon professional. Feel free to contact us today and set an appointment to have this resolved.


  • Manufacturers Serviced +

    Noritz Tankless Water Heaters

    Noritz Tankless Water Heater

    Takagi Tankless Water Heaters

    Takagi Tankless Water Heater

    AO Smith Tankless Water Heaters

    AO Smith Tankless Water Heater

    Rinnai Tankless Water Heaters

    Rinnai Tankless Water Heater

    Navien Tankless Water Heaters

    Navien Tankless Water Heater

    Eternal Tankless Water Heaters

    Eternal Tankless Water Heater

    State Tankless Water Heaters

    State Tankless Water Heater

    Bradford White Tankless Water Heaters

    Bradford White Tankless Water Heater

    Rheem Tankless Water Heaters

    Rheem Tankless Water Heater

    Intellihot Tankless Water Heaters

    Intellihot Tankless Water Heater
  • Training & Experience +

    Tankless Water Heater Problems Fixed
  • Part Availability +

    Tankless Parts Available on Truck

    Tankless Parts Available in Stock

    Tankless Part Availability
  • Dispatch Locations +

    Chicago, IL

    River North • The Loop
    South Loop • Old Town
    Wicker Park • Bucktown
    Gold Coast • Lakeview
    Lincoln Park • Magnificent Mile
    Ukranian Village • West Town

    Arlington Heights, IL

    60004 • 60005

    Elmhurst, IL

    60126

    Glencoe, IL

    60022

    Highland Park, IL

    60035

    Lake Forest, IL

    60045

    Naperville, IL

    60540 • 60563 • 60564
    60565 • 60566 • 60567

    Wilmette, IL

    60091

    Winnetka, IL

    60093

  • Customer Experiences +

    "These guys are all great they know my tankless heater and was able to fix it right away"

    John H.
    Arlington Heights, IL


    "My tankless heater was leaking and three companies told me I had to replace it I called paragon and they were able to fix it and within 24 hours. I couldn’t be more happy with this company"

    Bill F..
    Palatine, IL


    "Chris was great he fixed our heater within the first hour I couldn’t be more happy."

    Kim P.
    Skokie, IL


    "After being told by another company that I needed to replace my tankless heater I decided to call another company, Paragon Mechanical, Inc. Scott came and investigated the situation and was able to fix the unit and get it running."

    Stephanie H.
    Arlington Heights, IL


    "Chris did a great job he fixed my tankless heater and eliminated the problem with noise after being told by another company that noise is normal."

    Robert M.
    Arlington Heights, IL


    "Chris is very knowledagble about tankless heaters. In the short time he was here fixing my tankless heater he explained the complete operation of the unit and know I understand the product better then ever."

    Dan B.
    Lake Forest, IL


    "Paragon came out and resolved the problems we had with our tankless heater right away without fail I would use them again."

    Kevin L.
    Deerfield, IL


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