(831) 271-8735 info@5starplumbingseaside.com 1900 Fremont Blvd, Seaside, CA 93955
24/7 Emergency Service

Tankless Water Heater Installation & Repair

Endless hot water, lower energy bills, and a compact install performed to code — from brand-new tankless systems to repair of your existing unit.

Professionally installed tankless water heater with expansion tank and full copper manifold
Service 01

Tankless Water Heater Installation & Repair

Tired of running out of hot water halfway through a shower? We install and service high-efficiency tankless (on-demand) water heaters that deliver continuous hot water while taking up a fraction of the space of a traditional tank. Every install includes a proper gas or electric hookup, condensate and venting done to manufacturer spec, a code-compliant expansion tank, and a full system test before we leave.

  • Gas & electric tankless water heater installation (Navien, Rinnai, Rheem and more)
  • Traditional tank-to-tankless conversions
  • Annual descaling, flushing & maintenance
  • Diagnostics and repair for error codes, ignition issues & inconsistent temperature
  • Expansion tank, pressure-relief valve & code-compliant venting
  • Manufacturer warranty registration & documentation
How It Works

Our Tankless Water Heater Installation & Repair Process

1

Free In-Home Assessment

We evaluate your hot water demand, gas/electric supply, and venting path to recommend the right unit size.

2

Upfront, Flat-Rate Quote

You'll know the full cost before any work begins — no surprise add-ons.

3

Professional Installation

Licensed plumbers install and pressure-test every connection, following manufacturer and code requirements.

4

Walkthrough & Warranty

We test hot water delivery at every fixture and walk you through maintenance and warranty coverage.

Common Questions

Frequently Asked Questions

A well-maintained tankless unit typically lasts 18-20+ years — roughly double the lifespan of a traditional tank water heater.

Yes — tankless systems heat water on demand rather than storing a limited tank, so as long as the unit is sized correctly for your household you won't run out.

Sometimes. Tankless units draw more gas at peak firing than a tank heater, so we check your gas line sizing as part of every quote.

Absolutely — we diagnose and repair most residential tankless and tank-style water heaters, whatever the brand.

Ready to Get Started?

Call now for emergency service, or request a free estimate for planned work.

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