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.

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.

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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Amanda L
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Chose First Call for the installation of a new furnace and AC a few years ago. From the quote to the installation to the service, everyone from First Call has been thorough and thoughtful from start to finish. Can’t recommend them enough and I hope they will decide to do service and warranty work on Devon soon so that I can continue working with them in my new home.
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Marianne Andersen
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Cody came out and serviced our furnace, pleasant , professional and thorough in the job he did
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Laurie Thomas
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Scot was very pleasant and I was happy with the attention he gave to our situation. He did a thorough check with pictures and explained the problem in layman terms i could understand. Very happy with Scot.
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Kwokman Ng
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The technician came promptly within the scheduled time. He explained to me clearly the problem of my air conditioner. He was efficient and polite. Good customer service.
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Marcia d
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The technician was professional and knowledgeable.
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Brenda Bassett
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I am pleased with the estimator, Chris. He was punctual, informative and knowledgeable of his craft. He was forthcoming and honest, didn’t candy coat the quote. As this was just a quote and no service or payment was issued, I chose the least price range.
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Ed Zurawell
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Cody provided excellent service. He was thorough and gave an articulate explanation of all his findings and was clear and objective on his recommendations.

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.