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

    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 Conditioner Service Plans
  • Air Conditioning Repair
  • Air Conditioning Finance

    • 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
  • Hot Water Tank Service Plans
    • Water Softeners
  • Water Softener Install & Replacement
  • Water Softener Maintenance
  • Water Softener Service Plans
  • 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 Purification & Filtration Service Plans
  • Air Filtration & Purification Financing
    • Humidifier Systems
  • Humidifier Installation
  • Humidifier Maintenance
  • Humidifier Repair
  • Humidifier Service Plans
    • 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 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.
    Book Appointment
    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

    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.