Open 8 AM to 8 PM, 7 days  ·  Emergencies 24/7  ·  Serving Orangeville & Dufferin County
Call us: (800) 659-1879
★★★★★ 650+ verified reviews · Serving Orangeville since 2011

Navien Tankless Water Heaters

A Navien trained team for tankless water heater installation and service: sized honestly, installed to spec, and serviced every year.

Visit the official Navien website

650+
Verified reviews
Since 2011
Serving Orangeville
26 yrs
Master plumber led
24/7
Emergencies
A Navien tankless water heater mounted on a wall, with its pipework connected below

Get an estimate

Tell us what is going on and where to come. We confirm the visit, show up when we say we will, and give you an upfront price before any work begins.

Rather talk? Call (800) 659-1879, 8 AM to 8 PM, 7 days a week. Emergencies 24/7.

650+ verified reviews · Serving Orangeville since 2011

Navien trained

Navien tankless water heaters, installed by a trained team

The Plumbing Expert is a Navien trained plumbing company. We install and service Navien tankless water heaters, the condensing tankless units that heat water only when you need it, for homes and businesses across the area.

Endless hot water

A properly sized Navien tankless unit keeps hot water coming for back to back showers, laundry, and dishes, without a tank running dry at the worst moment.

Sized honestly

Tankless sizing is where installs go wrong. A trained team counts your fixtures, your winter incoming water temperature, and your gas supply, then specifies the unit that actually fits.

Gas and venting done right

Condensing tankless units have specific gas, venting, and condensate requirements. We install to those requirements and to code, and we test the full system before we leave.

Service and descaling

Tankless units need periodic service, including descaling, to keep efficiency and flow where they should be. We service Navien units we installed and units already in your home.

Call us when you need help with your plumbing emergency. No hot water is one. A Navien trained team will tell you honestly whether tankless is right for your home, and quote it straight if it is.

See also: Water heater repair and installation · Rheem water heaters and HVAC · Kohler fixtures

Service areas

Serving homes and businesses across the area

We do this work in Orangeville, Mono, Shelburne, Grand Valley, Erin, Caledon, Bolton, Alliston and Fergus. We are open 8 AM to 8 PM, 7 days a week, with emergencies covered 24/7. Call (800) 659-1879.

650+ verified reviews · Serving Orangeville since 2011. Led by a master plumber with 26 years in the trade.

Questions

Navien FAQs

What does Navien trained mean?

It means our team has been trained on Navien tankless water heaters: sizing, installation, venting, and service. The Plumbing Expert is a Navien trained plumbing company.

Is a Navien tankless right for my home?

It depends on your hot water use, gas supply, and venting options. We assess all three at your home and give you a straight answer, including when a tank unit is the better choice.

Do you service Navien units you did not install?

Yes. We service and descale Navien tankless water heaters across our service area. Call (800) 659-1879, 8 AM to 8 PM, 7 days a week.

How often does a Navien tankless need service?

Annual service is a good rule in our water conditions, including a descale where hardness calls for it. We check filters, condensate, and operation as part of the visit.

Which towns do you cover?

We install and service Navien tankless water heaters in Orangeville, Mono, Shelburne, Grand Valley, Erin, Caledon, Bolton, Alliston and Fergus.

Endless hot water, sized honestly.

650+ verified reviews · Serving Orangeville since 2011. Call (800) 659-1879 or send the form and we will take it from there.

Get an Estimate Call (800) 659-1879

Learn more from the manufacturer: www.navieninc.com

A note on brands: The Plumbing Expert installs and services all major brands, not just the ones with a page of their own here. Navien is a brand our team is trained on, which is why it earns a page of its own.

Reviews · 650+ verified reviews · Serving Orangeville since 2011

Neighbours say it better than we can

★★★★★

“Ryan did a superb job and I'm very satisfied.”

Ruth Williams
Google review · Oct 22, 2026 · Service by Ryan
★★★★★

“So happy to call these guys as they are punctual and clean working Gents. Ryan was informative and more than happy to get our day going ASAP and he was Easy to talk to and down to earth. Thanks guys for all your help. You’ve definitely gained another customer. Cheers!”

Steven Goncalves
Google review · 9 months ago · Plumbing service
★★★★★

“Ryan really helped save us a tremendous amount of anxiety and stress. Came on the weekend to replace our main shutoff that was consistently leaking. He arrived early, well prepared and ready for work. He was polite courteous and simple in explaining the repair each step at a time.”

James McGuire
Google review · 10 months ago · Main shutoff replacement
★★★★★

“The Plumbing Expert should be on everyone's list if you have a plumbing issue or project. They have been nothing short of professional, knowledgable, and punctual. In particular we have had Ryan help out many of our family members and everyone has been very happy with his work and demeanor.”

Demitrius Marshall
Google review · 11 months ago · Plumbing projects
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