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    Home » Plumbing » Tankless Water Heaters » Tankless Water Heater Maintenance

    Tankless Water Heater Maintenance in Edmonton, Sherwood Park and St. Albert

    Keep your tankless water heater running efficiently with regular maintenance. First Call Heating performs descaling, inspections and adjustments to ensure consistent hot water and extend unit life.
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    Home » Plumbing » Tankless Water Heaters » Tankless Water Heater Maintenance

    Our Service Areas

    We maintain tankless heaters in Edmonton, Sherwood Park, St. Albert and nearby communities including Beaumont, Fort Saskatchewan, Morinville, Ardrossan, Bon Accord and Gibbons.

    Keep Your System Running Like New

    Mineral build‑up reduces efficiency and can lead to premature failure. Annual maintenance removes scale, checks components and keeps your system performing like new.

    Protect Your Investment

    Descaling the heat exchanger and cleaning filters ensure your tankless heater delivers consistent hot water. Regular maintenance also helps keep manufacturer warranties valid.
    Get a Quote Today

    Maintenance Tasks

    Benefits to Homeowners

    Service Plans

    Our maintenance plans include annual visits, priority scheduling and discounts on repairs. Plans can be bundled with other HVAC and plumbing services for full‑home coverage.

    Customer Testimonials

     
     
     
     
     
     
     
      
     
     
     
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     Trent Johnson 
     
     
     
     Google star 1Google star 2Google star 3Google star 4Google star 5 
    Excellent experience to install a new Lennox modulating furnace. From the shopping g stage right through to some follow up service calls, they were professional and patient.
      
     
      
     
     
     
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     Roger Wolf 
     
     
     
     Google star 1Google star 2Google star 3Google star 4Google star 5 
    Cameron was on time and performed the inspections very well, and was very respectful  and informative.  Much appreciated.
      
     
      
     
     
     
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     Judy Blackstock 
     
     
     
     Google star 1Google star 2Google star 3Google star 4Google star 5 
    This is not the first time I have called First Call. They replaced my old furnace and checked my existing A/C. This time my old hot water heater needed to be changed. As a much-appreciated perk, the plumber also tested my sump pump and explained how I could do it at no additional charge! The installers arrived on time, used tarps to protect our home, and explained what they had done.

An additional reason I called First Call again, is their active participation in community events. They give back to our community wherever possible. I would not hesitate to call them again.
      
     
      
     
     
     
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     ParadisePond 
     
     
     
     Google star 1Google star 2Google star 3Google star 4Google star 5 
    Timely, efficient  service. Service man was personable, knowledgeable and professional to deal with.
      
     
      
     
     
     
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     C Rusk 
     
     
     
     Google star 1Google star 2Google star 3Google star 4Google star 5 
    Cody was respectful, knowledgeable and efficient during his visit to my home to service my furnace. I have used their services before and I highly recommend this company.
      
     
      
     
     
     
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     Jill Younghusband 
     
     
     
     Google star 1Google star 2Google star 3Google star 4Google star 5 
    Prompt, efficient and professional. I have heat now! Thank you!

    Furnace Repair FAQs

    How often should maintenance be performed?

    Most manufacturers recommend annual maintenance. Hard‑water areas may require more frequent service.

    What happens if I don’t descale my heater?

    Scale build‑up reduces efficiency, shortens lifespan and may cause overheating or error codes.

    Can I descale the unit myself?

    Some homeowners perform basic maintenance, but professional service ensures safe handling of chemicals and proper disassembly.

    Does maintenance include flushing the water lines?

     Yes. We flush the system to remove debris and ensure clean water flow.

    Will maintenance void my warranty?

     No. It is usually required to keep the warranty valid.

    Can I combine maintenance with other services?

    Yes. We offer bundled plans that include maintenance for furnaces, air conditioners and water heaters.