Tankless Water Heater Repair Service in Coquitlam

604-873-3753

A tankless water heater delivers hot water on demand instead of storing and reheating a supply of hot water around the clock, which means lower energy bills and no more running out of hot water mid-shower. KCs Plumbing, Heating & Drain Services installs, repairs, and maintains tankless water heaters across Coquitlam and the Tri-Cities. For our full range of hot water tank and tankless water heater services, see our hot water tank services page.


See our full range of heating services for everything else we cover.


Ready to make the switch, or need a repair? Call (604) 873-3753.

Why Homeowners Choose Tankless


  • Lower energy costs. No standby heat loss from keeping a tank of water hot all day.
  • Endless hot water. No tank to run dry mid-use, so you get hot water whenever you need it.
  • Less space required. Wall-mounted units free up floor space a traditional water heater would take up.
  • No sediment buildup in a tank. Capacity never shrinks the way it does in tank water heaters.


The trade-offs are worth knowing too: a tankless unit costs more upfront than a traditional water heater, water pressure and flow can dip slightly if multiple fixtures run at once, and the system needs electricity or gas to function, so it won't provide hot water during a power outage the way some tank water heaters briefly can. We'll walk you through whether the trade-offs make sense for your household's hot water needs.



tankless water heater maintenance, repair and replacement service

Common Tankless Water Heater Problems

  • Error codes or shutdowns. Often mineral buildup or a flow sensor issue our technician can diagnose and repair on site.
  • Cold water mid-shower. Can mean the tankless unit is undersized for simultaneous use, or a component has failed.
  • Reduced water flow. Usually scale restricting the heat exchanger.
  • Water pooling around the base of the unit. A sign of a failing water heater that needs attention before it causes water damage.


See our tankless water heater repair guide for a fuller breakdown of symptoms and fixes.Most tankless repair calls are same-day service, since our technicians carry the parts modern tankless models need.

Why Maintenance Matters More Here

Tankless systems skip the sediment problem tank water heaters have, but they're not maintenance-free. In areas with hard water, mineral scale builds up inside the heat exchanger fast enough to need descaling every few months, and a water softener is often part of the solution there.


Much of the Lower Mainland has soft water by comparison, which is easier on the tankless water heater overall, but scale can still accumulate over time and reduce efficiency as water passes through the unit. We recommend routine maintenance, generally an annual descale, to keep every tankless water heater running the way it's meant to. Our tankless maintenance guide covers what that involves.


Book your annual service. Call (604) 873-3753 or schedule your service online.

Converting From a Tank

Switching from a storage tank to tankless is a real conversion, not a simple swap, and typically involves gas tankless water heaters needing gas line sizing, new venting, and sometimes electrical work. We'll assess your home's hot water demand, water supply, and fixture count, and help you select the right gas tankless water heater or electric model, including whether a single whole-home unit or point-of-use units in specific locations makes more sense for you. If you're still weighing tank versus tankless, our hot water tank services page covers the tank side of that decision. Our tankless installation guide covers the conversion process in detail.

Brands We Install and Service

Why Coquitlam Chooses KC's

We've installed and serviced tankless water heaters across the Tri-Cities and Lower Mainland since 1993, as a licensed plumber and technician-run, insured, BBB-accredited, family-run company covering all of our service areas. Customer satisfaction is backed by our guarantee on every job.

Frequently Asked Questions

Is Tankless Worth the Higher Upfront Cost?

For many households, yes, over the system's life, thanks to lower energy bills and a longer typical lifespan than a tank. We'll give you the honest math for your household's usage.


How Often Does a Tankless Unit Need Maintenance?

Annual descaling is the general recommendation, especially given the mineral content in Lower Mainland water.

Can I Convert From a Tank to Tankless?

Yes. It usually involves gas line and venting changes, sometimes electrical work. We'll walk you through what your specific home needs.


Do You Offer Emergency Tankless Repair?

Yes. Our emergency line is open 24 hours a day across Coquitlam and the Tri-Cities.


What Brands Do You Install?

AO Smith, Giant, IBC Boiler, John Wood, Navien, Rheem, Ruud, and Super Hot.

Go Tankless, or Get Your System Fixed

Whether you're switching to tankless for the first time or need an existing system repaired or serviced, call KCs Plumbing & Heating at (604) 873-3753 or request service online.


Serving Coquitlam, Port Coquitlam, Port Moody, Burnaby, and New Westminster. Call (604) 873-3753 today.


Written by Jack Japuncic, Master Plumber, founder of KCs Plumbing, Heating & Drain Services.