Need a new water heater in Bothell? Bothell Plumber installs and replaces traditional tank, tankless, gas, electric, and heat pump water heaters. We help you choose the right system for your home and explain the cost before work begins. Our local plumbing team provides dependable installation with careful attention to the details. Call Bothell Plumber today to schedule your water heater service.
Bothell doesn’t have the hard water problem you hear about in a lot of other places — our water runs soft. But soft, lower-pH water causes its own kind of trouble. Instead of coating pipes in mineral scale, it slowly pits copper and steel from the inside. Add in how damp it stays here most of the year, and a tank doesn’t always make it to the full lifespan the manufacturer promises.
We only do plumbing — no HVAC, no electrical work pulling attention elsewhere. Staying focused on one thing means cleaner installs and fewer callbacks.
Still the setup most homes have — a tank sitting somewhere between 40 and 80 gallons, keeping water hot and ready to go. A single person or a couple usually gets by fine on 40 gallons. Once you're talking a full family in a 3-4 bedroom place, most people end up wanting the 50-gallon version instead. Between fuel types, gas recovers hot water quicker after heavy use and tends to run cheaper month over month, while electric skips the venting hassle and costs less to buy in the first place.
Instead of holding a tank of hot water at all times, this style fires up and heats water the moment you turn on a tap — meaning you're not limited by however many gallons happen to be sitting in reserve. It also frees up floor space since the unit hangs on a wall rather than sitting on the ground. The catch is a steeper price to install, and depending on your existing setup, you may need a bigger gas line or updated venting to make the switch.
Works in a totally different way — instead of making heat, it pulls warmth that's already sitting in the air around it and moves that into your water, using way less electricity than a standard electric tank. A garage is often a good spot for one, since there's usually enough warm air around to keep it running well. Not sure which one makes sense for your household? We size it based on your actual usage, not a generic chart.
Picking between these two is really a question of what matters more to you: money upfront, or money and convenience over time. Your budget, how much hot water your household actually goes through, and whether you’re planning to be in this house for the long haul all factor in.
If endless hot water and lower utility bills over the years sound appealing, and you don’t mind paying more now for a system that can often run close to 20 years, tankless is worth a closer look. Just know that switching over sometimes brings extra work — a bigger gas line, different venting — depending on what you’ve currently got.
If you’d rather keep the upfront cost down and want something that drops in using your existing gas line and vent setup, a standard tank is the more practical route for most households.
| Tank | Tankless | |
|---|---|---|
| Upfront installed cost | Lower | Higher |
| Typical lifespan | 10–15 years | 15–20 years |
| Hot water supply | Limited by tank size | Continuous |
| Space | Takes floor space | Wall-mounted |
| Best fit | Tighter budget, quick swap | Long-term homeowners, heavy use |
Our job is laying out what each option actually costs and delivers for your specific home — not steering you toward whichever one pays us more.
If your water heater is past 10 years old and actively leaking, replacement is almost always the better call. Below that, or with a different kind of problem, a repair is often worth trying first.
Signs you’re probably looking at a replacement:
Signs a repair will probably do it:
A cold shower one morning doesn’t automatically mean a new water heater. If it’s something simple, we’ll say so — we’d rather earn a repeat customer than sell someone a unit they didn’t need yet.
For the typical Bothell household, a 40- or 50-gallon tank handles things fine, or on the tankless side, a unit in the 7-10 GPM range. The way tanks get rated is by “first-hour” capacity — in plain terms, the total hot water it can put out during your busiest hour of the day, back-to-back showers and all.
| Household Size | Suggested Tank/System Size |
|---|---|
| 1–2 people | 30–40 gallons |
| 3–4 people | 40–50 gallons |
| 5+ people | 50–80 gallons, or a larger-capacity tankless setup |
Tankless sizing works differently — it comes down to flow rate and how cold your water is coming in. Someone running the dishwasher and a shower at the same moment needs a lot more capacity than a single person living alone. Rather than guessing, we look at how your household actually uses hot water day to day before recommending a size.
Every water heater we install meets Washington’s plumbing code (WAC 51-56) and passes local inspection. Even a simple tank swap needs a permit under Washington rules — it’s not a job to do yourself.
Step 1: We Figure Out the Right Fit Size, fuel type, tank versus tankless — based on your household, not a guess.
Step 2: Paperwork and Shutoff The permit gets pulled, and water and fuel to the old unit get shut off so we can work safely.
Step 3: Out With the Old The existing unit gets disconnected and removed from the property.
Step 4: In With the New We set the replacement unit in place and get every connection — water, fuel or power, venting — properly hooked up.
Step 5: We Test Everything Required safety components go on, and we run the unit through its paces before calling the job done.
Washington’s Seismic Strapping Requirement This part of the country deals with real earthquake risk, and the plumbing code is written around that fact — WAC 51-56-0500 calls for a water heater to be secured with two straps, one near the top of the tank and one near the bottom. If your home runs a closed water system, an expansion tank has to go in alongside the unit as well. Beyond the strapping itself, we make sure the temperature and pressure relief valve, a drain pan (where it’s called for), and proper venting are all in place — and the job gets signed off by local inspection before we consider it done.
Most water heaters don’t slow down first — they just stop. Usually on a morning you don’t expect it, sometimes with a flooded closet and a cold shower together. If yours is already past 10 years old, it’s better to replace it now, on your own time, than later in an emergency at a higher price with water already on your floor.
A standard tank install generally runs $500 to $1200, fully done. Tankless units run $1500 to $2500, and heat pump systems run $2500 to $3000. Either way, the number gets confirmed before we start any work.
Most of the time, yeah. Give us a call (425) 380-0270 and we'll tell you straight whether that's realistic for what you need.
Yes. Washington requires a permit even for a like-for-like tank replacement, and we handle pulling it as part of the job.
Tank units typically run 10 to 15 years here, tankless closer to 15 to 20, though Bothell's water can shorten that somewhat for units that haven't had any extra care.
The federal tax credit expired at the end of 2025. Puget Sound Energy currently offers a utility rebate for qualifying heat pump water heaters — we'll confirm what's actually available when we quote your job.
We work with major residential brands across tank, tankless, and heat pump categories — happy to talk through options for your specific home.