Tri-Cities, Washington
Tankless Water Heaters in the Tri-Cities
Tankless water heaters can be efficient, but they need the right sizing, gas, and venting — and regular descaling where mineral content in the water is higher. Sonlight Plumbing is preparing to service and repair tankless units, evaluated case by case.
Prelaunch notice: Sonlight Plumbing is completing licensing and setup before offering plumbing services. Service availability and license information will be posted here when active.
At a Glance
- Common signs
- Considering an upgrade, running out of hot water with a tank, error codes on an existing unit, or scale-buildup concerns.
- What may be involved
- The tankless unit, gas line sizing, venting, water connections, and isolation valves.
- Good next step
- Read how tankless compares with a tank below.
- Current status
- Service availability will be posted before accepting plumbing work.
What to expect
How Sonlight approaches this
Tell us what's going on
Share the symptom and your city. You'll deal with Jose directly.
Get clear options before work begins
We explain what we see in plain language and lay out your choices.
Approve the work before anything starts
Nothing happens until you've approved the plan. Clean work, left tidy.
Signs you may need this service
Error or fault codes on the display
Hot water that drops out mid-shower
Reduced flow or temperature over time
Scale buildup and overdue descaling
Unit reaching the end of its service life
How Sonlight Plumbing can help
- Diagnosing error codes and performance issues
- Descaling and maintenance for mineral buildup
- Repair versus replacement guidance
- Sizing, gas, and venting evaluation for new installs (case by case)
- Clear options before any work begins
Tankless water heater repair
Tankless units can run into ignition, flow, or scale-related problems that show up as error codes or inconsistent hot water. We are preparing to diagnose tankless issues and explain your options before any work begins.
Tankless water heater replacement
When a tankless unit reaches the end of its life or is not the right fit, replacement may be the better option. Tankless installs depend on your home's gas and venting, so they are evaluated case by case.
Tankless maintenance
Tankless water heaters need periodic maintenance to keep running well, especially where mineral content in the water is higher. We are preparing to offer maintenance that helps protect the unit and its performance.
Flushing and descaling
Mineral scale can build up inside a tankless unit over time, which is why periodic flushing and descaling matters. We are preparing to descale tankless units to help maintain flow and efficiency.
Error codes
Tankless displays use error codes to flag issues like ignition, flow, or scale buildup. We are preparing to read the code, diagnose the cause, and explain what it means in plain terms.
Hot water issues
If a tankless unit drops out mid-shower or will not keep up, the cause may be sizing, scale, or a component issue. We are preparing to evaluate the cause and give you honest options.
When tankless makes sense
Tankless can be a good fit for the right home and hot-water needs, with benefits like efficiency and a continuous supply. We are preparing to help you decide whether tankless is the right choice for your situation.
When a standard tank may be better
A standard tank water heater is sometimes the simpler, more practical option depending on your home's gas, venting, and budget. We will give you an honest comparison rather than pushing one option.
What to expect
Tankless installs and conversions depend on your home's gas and venting, so they're evaluated case by case. You'll get a clear, honest assessment before anything moves forward.
Planned for homeowners in Kennewick, Pasco, Richland, West Richland, and West Pasco. See all service areas → Questions before launch? Contact Sonlight Plumbing →
What to expect
How a visit works
Honest, straightforward, and no pressure — here is how Sonlight approaches every job.
You tell us what's happening
Share the problem and what you're seeing. We follow up to understand the details before anything is scheduled.
We assess it in person
We look at the actual problem in your home — not a guess over the phone — so the plan fits what is really going on.
We explain your options
You get clear options and honest recommendations before any work begins. No pressure, no surprises.
You decide
You choose what is right for your home, and the work gets done properly.
Related services
You may also need
Water Heater Replacement
Water heater replacement coming soon to Kennewick, Pasco, Richland, West Richland, and West Pasco.
Water Heater Repair
Water heater repair coming soon to the Tri-Cities.
Pressure Reducing Valves
Pressure reducing valve (PRV) replacement coming soon to the Tri-Cities — high pressure, banging pipes, and fixtures wearing out early.
Tankless Water Heater Fit Check
Household hot water demand
Gas supply or electrical capacity
Venting requirements
Maintenance history
Space and access
Water quality and scale buildup
FAQ