Tankless Water Heater Installation

Endless hot water, more floor space, and a unit built to last. We help you decide if tankless is the right call, size it for your home, and install it — often the same day.

  • Endless On-Demand Hot Water
  • Gas & Electric Tankless Units
  • Upfront Pricing — No Surprises
(983) 209-1502

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Endless Hot Water

On-demand heating means you never run out mid-shower.

Same-Day Install

Most tankless installs happen the same day you call.

Upfront Pricing

Full price — unit, labor, haul-away — before we start.

Licensed & Insured

Water heater experts handling gas, venting, and electrical right.

Is Tankless Right for You?

Tankless isn't the answer for every home, but it's a strong fit for plenty. Here's when it tends to make sense — and we'll give you a straight read on your setup.

You Want Hot Water That Never Runs Out

A tankless unit heats water as you use it, so it doesn't drain a tank and leave you cold. Long showers and back-to-back loads stop being a problem.

You're Short on Space

There's no big tank to find room for. A tankless unit mounts on the wall, freeing up the closet, garage, or basement corner.

You Want a Lower Energy Bill

Because it only fires up when you turn on the tap, a tankless heater isn't paying to keep a full tank hot all day. Most homes see a smaller monthly bill.

You're Planning to Stay Put

A tankless unit typically lasts 15 to 20 years, well past a tank's 8 to 12. If this is your long-term home, the longer lifespan pays off.

Your Tank Is Already on Its Way Out

If you're replacing an old unit anyway, it's the natural moment to go tankless. You're paying for the install either way.

Your Household Demand Is High

A big family, multiple bathrooms, or a soaking tub can outrun a tank. Sized right, a tankless unit keeps hot water flowing to several fixtures at once.

What's Involved in Going Tankless

A tankless unit works differently than a tank, so the install is a bit more involved. Here's what it takes to do it right.

Gas, Venting & Electrical

A tankless unit usually needs a bigger gas line and its own venting. Electric models may need a heavier circuit. We check what your home has and update what's needed so the unit runs right.

Sizing for Endless Hot Water

Tankless units are rated by gallons per minute, and the colder the incoming water, the harder they work. We size yours for your fixtures and our cold winter inlet so you never run short.

Descaling & Maintenance

Tankless units run a yearly descale flush to clear mineral buildup and keep the heat exchanger clear. We set yours up and walk you through keeping it healthy for the long haul.

Not sure tankless is the move? We also lay out tanks and the broader sizing and fuel choices on our water heater installation page, and we'll talk it through with you either way.

How Our Tankless Installation Works

Simple, straightforward. Here's how it works.

Step 1

You Call or Text

Tell us a bit about your home and how your household uses hot water. We'll ask a few quick questions and set up a visit. Same-day is usually available.
Step 2

We Size It & Check Your Setup

We look at your gas line, venting, and electrical, then size the right unit by your fixtures and water demand. You'll know if anything needs upgrading before we quote.
Step 3

Upfront Price, Your Call

Before any work begins, you get the full price in writing, with the unit, labor, and haul-away of the old tank all included. No surprises later.
Step 4

Installed, Tested & Hot Water On

We mount and connect the new unit, set the temperature, and run it before we leave. You've got endless hot water and the old tank is gone.
(983) 209-1502

Why Homeowners Choose Us

Daniel's Water Heater Repair technician installing a tankless water heater

We're water heater experts — repair, replacement, and installation is all we focus on, so we'll tell you straight whether tankless actually fits your home instead of pushing the most expensive unit.

Every make and model, the gas, venting, and electrical handled in one visit, and the full price before any work starts. A real person answers 24/7 at Daniel's Water Heater Repair, and we serve homeowners across Boulder and the surrounding metro.

Tankless Water Heater Questions We Get a Lot

These come up on almost every tankless job, so here's the straight answer to each.

Most tankless installs land between $2,000 and $6,000. Where you fall depends on the unit and whether your gas line, venting, or electrical needs upsizing to feed it. We sort all of that out first, then hand you one upfront price before any work starts.

For a lot of homes, yes. You get hot water that doesn't run out, a longer-lasting unit, a smaller footprint, and usually a lower energy bill. The trade-off is a higher price up front. If you're staying in the home and tired of running cold, it tends to pay off.

Around 15 to 20 years, noticeably longer than the 8 to 12 a standard tank gives you. Part of that is design — there's no tank of water sitting and slowly corroding — and part is the yearly descale that keeps the heat exchanger clean.

They do, but it's simple. Once a year the unit gets a descale flush to clear mineral buildup off the heat exchanger so it keeps heating efficiently. We set that up when we install it and show you what to watch for in between.

Yes, and it's a common request when an old tank is ready to go. We pull the tank, run the gas, venting, or electrical the new unit needs, mount it, and haul the old one away. We'll walk you through what your home needs before we start.

A tankless install usually takes the better part of a day — figure 4 to 8 hours. There's more to it than a tank swap: we're often upsizing the gas line, adding dedicated venting, or running new electrical to feed the unit. You'll get a firm window once we've sized the job.

Thinking About Going Tankless?

Call or text — a real person answers 24/7, and same-day installation is the norm.

(983) 209-1502

No hot water? Call us now.

We answer 24/7 — same-day water heater service.

(983) 209-1502

Tap to call — available day, night, weekends, holidays.

⚠ Don't Wait

No hot water? Leaking tank?

Water heater problems get worse fast — a small leak can turn into a flood. Call now and we'll get a technician out, usually the same day.

Call (983) 209-1502