• Contact Us
  • Promotions
  • Service Areas
  • About Us
  • Careers
  • News
  • Expert Advice
  • Emergency Service
    • 780-464-3337 Book Online

    Heating

    We offer furnace installation, maintenance and repair services to Edmonton and area. For friendly, thorough service, call us today!

    See All Heating Services

    Do you have a heating emergency?

    Call today to be connected to our office or our after-hours technician.

    Call for Emergency Service

    Furnaces
  • Finance Your Furnace
  • Furnace Installation
  • Furnace Maintenance
  • Furnace Repair

    • More Heating Services

  • Garage Heater Repair & Maintenance
  • Thermostat Repair & Replacement

    • Air Conditioning

    We offer the best in quiet, efficient, and economical central air conditioning systems for your home. Choose from a wide selection of price points and functionality including Amana, Lennox and Essentials by First Call Air Conditioners.

    See All Air Conditioning Services

    Do you have an air conditioning emergency?

    Call today to be connected to our office or our after-hours technician.

    Call for Emergency Service

    Air Conditioning
  • Air Conditioner Installation
  • Air Conditioning Repair
  • Air Conditioning Finance
  • Air Conditioner Maintenance

    • More Air Conditioning Services

  • Ductless Air Conditioners & Mini Split Systems
  • Heat Pumps in Edmonton, Sherwood Park and St. Albert.

    • Plumbing

    Need to fix or install a hot water tank, water softener or sump pump? Every home needs a high-functioning hot water tank and many homeowners also need a working sump pump and water softener.

    See All Plumbing Services

    Do you have a plumbing emergency?

    Call today to be connected to our office or our after-hours technician.

    Call for Emergency Service

    Hot Water Tanks
  • Hot Water Tank Financing
  • Hot Water Tank Install
  • Hot Water Tank Maintenance
  • Hot Water Tank Repair
    • Water Softeners
  • Water Softener Install & Replacement
  • Water Softener Maintenance
  • Water Softeners Financing

    • More Plumbing Services

  • Gas Lines
  • Reverse Osmosis Systems
  • Sump Pump Installation, Repair, & Replacement
  • Tankless Water Heaters
  • Tankless Water Heater Install
  • Tankless Water Heater Repair
  • Tankless Water Heater Maintenance

    • Indoor Air Quality

    Temperature is only part of what keeps a home comfortable and healthy. First Call offers a wide selection of humidifiers and air purification systems to create your ideal living environment.

    See All Indoor Air Quality Services

    Do you have an indoor air quality emergency?

    Call today to be connected to our office or our after-hours technician.

    Call for Emergency Service

    Air Filter & Purification Systems

  • Air Filtration & Purification Install
  • Air Filtration & Purification Repair
  • Air Filtration & Purification Maintenance
  • Air Filtration & Purification Financing
    • Humidifier Systems
  • Humidifier Installation
  • Humidifier Maintenance
  • Humidifier Repair
    • VIP Club

    Financing

    If you are worried about your furnace surviving the winter, but are concerned about the cost to replace it, our flexible finance options are worth considering. Spread out the total cost of your new furnace in manageable monthly payments. Enjoy the peace of mind and comfort a reliable furnace provides.

    See All Financing Options

  • Tankless Water Heater Financing
  • Water Softeners Financing
  • Finance Your Furnace
  • Air Filtration & Purification Financing
  • Air Conditioning Finance
  • Hot Water Tank Financing

    • Commercial

    We offer a range of heating, ventilation, refrigeration, and air conditioning services for light to moderate commercial operations.

    See All Commercial Services

    Do you need emergency service?

    Call today to be connected to our office or our after-hours technician.

    Call for Emergency Service

  • Commercial Heating & Air Conditioning
  • Commercial Installation
  • Commercial Maintenance
  • Commercial Repair
    • 780-464-3337
    Home » Plumbing » Tankless Water Heaters » Tankless Water Heater Repair

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

    If your tankless water heater isn’t producing hot water, displays error codes or shows fluctuating temperatures, First Call Heating offers prompt repair services. We diagnose issues and restore your system’s performance.
    Book Online
    Home » Plumbing » Tankless Water Heaters » Tankless Water Heater Repair

    Our Service Areas

    We repair tankless heaters for homeowners in Edmonton, Sherwood Park, St. Albert and surrounding towns including Beaumont, Fort Saskatchewan, Morinville, Ardrossan, Bon Accord and Gibbons.

    All Major Brands Serviced

    Our technicians fix ignition failures, mineral build‑up, sensor errors and gas supply issues. We work on all major brands and carry common parts for faster repairs.

    Signs You Need Repair

    Error codes, inconsistent water temperature, reduced water pressure or no hot water at all signal the need for a professional inspection. Addressing issues quickly prevents further damage.
    Get a Quote Today

    Common Repairs

    Our Approach

    We conduct a diagnostic evaluation, explain the problem and offer solutions with upfront pricing. Many repairs are completed on the same visit thanks to our stocked service vans.

    Prevention Tips

    Regular maintenance reduces the likelihood of breakdowns. Use water softening or filtration systems if you have hard water to minimize scale.

    Customer Testimonials

     
     
     
     
     
     
     
      
     
     
     
     Posted on Google Google 
      
     
     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.
      
     
      
     
     
     
     Posted on Google Google 
      
     
     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.
      
     
      
     
     
     
     Posted on Google Google 
      
     
     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.
      
     
      
     
     
     
     Posted on Google Google 
      
     
     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.
      
     
      
     
     
     
     Posted on Google Google 
      
     
     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.
      
     
      
     
     
     
     Posted on Google Google 
      
     
     Jill Younghusband 
     
     
     
     Google star 1Google star 2Google star 3Google star 4Google star 5 
    Prompt, efficient and professional. I have heat now! Thank you!

    Tankless Water Heater Repair FAQs

    Why is my heater displaying an error code?

    Error codes indicate specific faults such as ignition failure, scale build‑up or sensor problems. We diagnose and correct the underlying issue.

    Why does the water temperature fluctuate?

    Fluctuations may be caused by sensor problems, scale build‑up or undersized units.

    Can I repair my heater myself?

    Repairs often involve gas or electrical systems and should be performed by licensed professionals.

    How quickly can you repair my unit?

    We offer same‑day service for many repairs and carry common parts on our trucks.

    Will repairs be covered by warranty?

    Manufacturer warranties may cover parts. Labour is billed separately.

    Should I repair or replace my heater?

    If your unit is approaching the end of its lifespan or has frequent issues, replacement may be more cost‑effective. We’ll provide honest recommendations.