★ 3,066 Google reviews
Local plumbers in Norfolk, Winchester & Wilmington

Tankless water heater installation for endless hot water.

More hot water, less space and a long life. We install, repair and maintain tankless water heaters, and we'll tell you honestly if one suits your home.

Available in: Norfolk, Winchester & Wilmington

Wall-mounted tankless water heater with new gas and water connections
Tankless water heaters

“We run out of hot water every time the family showers.”

A tankless water heater heats water as you use it, so it doesn't run out the way a tank does, and you only pay to heat water when you use it.

Tankless units mount on the wall, free up floor space and can last longer than a tank. They also cost more up front, may need a larger gas line or new venting, and have a limit on how many showers they can run at once.

Your plumber looks at your gas line, venting and hot water use, then gives you the options and a written price. We install Navien, and we service and repair most tankless units, including the annual flush they need in hard water.

  • Hot water keeps running outTankless doesn't run out
  • Want floor space backWall-mounted
  • Tankless showing an error codeRepair and service
  • Hard waterNeeds an annual flush
  • Gas line or ventingMay need an upgrade
Who it suits

Who a tankless suits best

You only pay to heat water when you use it, so the savings are biggest when hot water would otherwise sit unused.

Retirees and empty nesters

Smaller hot water needs, and no tank keeping 40 or 50 gallons hot all day.

Small households

One or two showers at a time is the sweet spot for a single tankless unit.

People who travel or are away

Gone for the weekend or the season? You're not paying to keep a tank hot while the house is empty.

Sizing

Sizing a tankless the right way

A tankless is sized by how much hot water you use at the same time, not by tank gallons.

Fixtures running at once

Each shower uses roughly 2 gallons a minute. Add up everything that might run at the same time.

Incoming water temperature

The colder the water coming in, the harder the unit works. An undersized unit runs lukewarm in winter.

Gas line and venting

A gas tankless may need a bigger gas line and new venting. We check both before we quote.

Powell's tankless sizing guide
1234
44,000 BTU
13 kW
92,000 BTU
27 kW
136,000 BTU
40 kW
Our pick for 2 showers109,000 BTU · 32 kW
92,000 BTU · 27 kW
Keeps up with 2 showers in summer

In winter, plan on 1 shower at a time.

Winter
Summer

Hot Not enough Room to spare

  • Hot water at the shower: about 8 seconds in a bungalow (20 ft of pipe), about 17 seconds at the far end of a two-storey (50 ft).
  • If it's electric: about 113 amps at 240 volts.
How the visit goes

What happens when you book

The same steps on every visit, so you always know what's next.

  1. You book

    Online or by phone. We tell you the trip fee before we book.

  2. We confirm

    A confirmation, a reminder, then an “on the way” notice.

  3. At your door

    Uniform, ID badge, marked truck, shoe covers and drop cloths.

  4. We find it

    Your plumber finds the cause and explains your options in plain English.

  5. You approve

    A written, flat-rate price, signed before work starts.

  6. Done and cleaned up

    Photos of the finished work come with your invoice.

How pricing works

You see the price before we start.

No surprise bill. You approve a written price first.

Financing on jobs of $500 or more
  1. Trip fee quotedWe tell you the fee when you book, before anyone is sent.
  2. Written priceYour plumber gives you a flat-rate price for the job.
  3. You approveTake a minute, ask questions, then sign off.
  4. We startThe price doesn't go up if the job takes longer.
Install or repair

New install, or keep yours running?

Tankless units need a little care each year. When one needs replacing, we'll size the new one properly.

Circuit board from a tankless water heater during a repair
Service and repair

Repair or flush it

Error codes, ignition and flow problems are diagnosed and repaired.

An annual flush clears scale, especially in hard water.

Tankless water heater mounted on a utility room wall
New install

Install a tankless

Sized for your home, with gas, venting and water connections done properly.

Electric tankless units need a large electrical supply, which needs a licensed electrician.

What affects the price

  • Gas or electric, and the size you need
  • Gas line size and venting
  • Where it's mounted
  • Removing the old tank
Tankless reviews

Endless hot water, installed right

4.8
★★★★★
3,066 Google reviews · 3 branches
15

Google reviews mention our tankless water heater work.

93% of them are five-star.

Thinking about going tankless?

Book a free in-home estimate. We'll tell you honestly if it suits your home.

Find your nearest Powell's branch →

Tankless FAQs

Questions about tankless water heaters

Cost, downsides and maintenance.

How much does tankless water heater installation cost? +

It depends on the unit and what your home needs: gas line size, venting and where it's mounted. In-home estimates are free, and you get a written price before any work starts. Financing is available on jobs of $500 or more.

What's the downside of a tankless water heater? +

Higher upfront cost, possible gas line or venting upgrades, a limit on how many fixtures it can run at once, and an annual flush in hard water. For many homes the endless hot water and space saved are worth it. We'll tell you honestly.

Tank vs. tankless: which is better? +

A tank costs less to install and handles several showers at once. Tankless gives endless hot water, takes less space and can last longer. The right choice depends on your home and how you use hot water.

Do tankless water heaters need maintenance? +

Yes. Most need a flush to clear scale once a year, more often with hard water. A water softener helps.

Do you install electric tankless water heaters? +

We handle the plumbing. Electric tankless units need a large electrical supply, which needs a licensed electrician. We don't do electrical work, so we'll tell you up front what's needed.

(540) 665-8196 Book Online