Enjoy endless
hot water.
Tankless Water Heater Installation in Vancouver, WA
Never wait for a tank to reheat again. We size, install, and service tankless water heaters — endless hot water, in less space, sized to how your home actually uses it.
Thinking about going tankless?
A tankless water heater heats water the moment you turn on the tap, so you get hot water on demand and never run out mid-shower. They take up a fraction of the space, use less standby energy, and typically outlast a traditional tank.
Go With The Flow installs and services tankless units — gas and electric — for homeowners across Vancouver, WA, and Clark County. We size the unit to your household's real demand, handle the gas, venting, or electrical it needs, and make sure it's dialed in before we leave.
Weighing tankless against a standard tank, heat pump, or solar?
See our full water heater guide.
Licensed Plumbing Contractor & Journey Level
The right credentials for gas and tankless work.
Top 1% of WA Contractors
BuildZoom score 117 out of 128,670 licensed contractors statewide.
Sized to Your Home
We match the unit to your real demand, not a generic recommendation.
Upfront, Honest Pricing
You approve the price before we begin. No surprise invoices.
1-Year to Lifetime Workmanship Warranty
We stand behind our work in writing.
Installation was quick and informative.
Ensured everything was working safely.
Beyond expectations.
Go With the Flow got right back to me when I asked for estimates to install a Hot Water Tank. Their estimate was in line with the others I got and they were able to get me in their schedule quickly. The installation was quick and informative. I asked the technician to check on another plumbing issue under the house which he did, and explained what the fix would be and that it wasn't urgent - which I appreciated - no sales pressure !! I've had them back again. Polite and they cleaned up after done. They are nice to work with.
Teresa Lee via
The plumber did an excellent job installing a new water heater in our home. They explained the process clearly and ensured everything was working safely. The installation was smooth and hassle-free. I’m very satisfied with their work.
Abigail Parker via
Excellent service, beyond what was required. Showed up and completed the job with the water heater in no time. Beyond expectations, will be using them in the future for every job
Brandon Faor via
Why do homeowners switch to tankless?
Tankless isn't right for everyone, but when it fits, the upsides are hard to ignore:
Endless hot water
It heats on demand, so you don't run out when the last person showers.
Back your space
A compact wall unit frees up the floor space that a bulky tank used to hold.
Lower standby energy
No keeping a full tank hot around the clock for water you're not using.
Longer lifespan
A well-maintained tankless unit typically outlasts a standard tank.
Gas or electric —
Which tankless fits?
Both exist, and the right one depends on your home. Here's the honest version, not a sales pitch:
Gas tankless
Units like Navien and Rinnai deliver the higher flow that suits whole-home use in our cold-inlet climate; they need proper venting and adequate gas supply.
Electric tankless
Simpler to install with no venting, but they can call for a serious electrical upgrade to run a whole house.
It comes down to flow
How many fixtures run at once decides the size you need; we calculate it for your home.
We'll tell you straight
If tankless isn't the smarter spend for your place, we'll say so.
Our tankless installation:
Most of what makes a tankless unit perform is in the installation. We handle the whole job, not just the hookup.
Right-sized to demand
We calculate your peak hot-water use so the unit keeps up.
Gas, venting & electrical
We handle the supporting work the unit needs to run safely.
Tank-to-tankless conversion
Replacing an old tank with a tankless setup, done properly.
Service & descaling
We keep it running efficiently long after install day.
One year to a lifetime guarantee.
We stand behind our work. Most installs carry a 1-year warranty, and select workmanship is guaranteed for life. On a tankless unit — a 15-to-20-year investment — that's the difference between a purchase you trust and one you second-guess. Upfront quote before we start, no surprises after.
Ready for hot water that doesn't run out?
If you're tired of cold showers at the end of the line, or you're replacing a tank that's on its way out, tankless is worth a real conversation. We'll size it, price it upfront, and install it right. Family-owned and trusted by Clark County homeowners.
