At Avery & Sons Plumbing + Tankless, we provide expert Rinnai tankless water heater service on Isle of Palms and surrounding coastal communities. From Isle of Palms to Sullivan’s Island and Mount Pleasant, we help homeowners keep their hot water systems running strong—especially in harsh salt-air environments.

Whether your Rinnai unit needs a descaling flush, performance diagnostic, repair, or full system upgrade, our experienced plumbers are equipped to service every model with accuracy and attention to detail. We understand how coastal conditions impact tankless systems, so we focus on long-term reliability—not just quick fixes.

If your system is acting up—or you want to prevent costly breakdowns—we’ll give you clear options and get it handled the right way the first time.

Testimonials 

After investing in a beautiful walk-in tub, this homeowner realized her existing water heater could only fill it halfway—definitely not the experience she was hoping for.

She made the smart move and upgraded to a Rinnai tankless water heater, and now she enjoys consistent, full hot water every time she uses it.

Moments like this are exactly why we do what we do—identifying the problem, providing the right solution, and making sure it works the way it should.

We love solving problems.

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