Water Heater Installation & Replacement

Putting in a new water heater? We help you pick the right size and type for your home, install it right the first time — usually the same day — and haul the old one away. Tank, tankless, gas, or electric. A water heater installation is mostly about sizing and the connections behind it. We check the pipe runs, the valve, and the drain before anything gets set. The steps are the same whether it is a tank or a tankless water unit.

  • Same-Day Installation in Most Cases
  • Old Unit Hauled Away
  • Upfront Pricing — No Surprises
(983) 209-1502

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Same-Day Install

Most new water heaters in the same day you call.

Upfront Pricing

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

Licensed & Insured

Qualified pros installing your water heater the right way.

Old Unit Hauled Away

We remove and dispose of your old water heater. Included.

What's Included With Every Installation

A water heater install with us is the whole job, start to finish — no surprises, no leftover mess. That covers the water heater installation end to end. The old unit leaves with us and the plumbing is left tidy. Water lines, valve and vent all get checked on the way out.

The Right Unit, Sized for Your Home

We help you pick the size and type that fits your household and budget — no overpaying, and no running out of hot water. Sizing is the part people get wrong. Too small and you run out of hot water; too large and you pay to keep water warm you never use. Water use peaks in the morning in most homes.

Professional Installation

Clean connections, level set, done right the first time by pros who install water heaters every day. Clean pipe work is what separates a good install from a fast one. Every valve and union gets checked, and the water lines get flushed before the connection.

Old Unit Hauled Away

We disconnect, drain, and remove your old water heater and take it with us — no hauling it to the curb yourself. Old water heaters are heavy and full of sediment. We drain and remove yours rather than leaving it for you, and the water left in an old tank makes it heavier than it looks.

Safety Setup

We make sure the pressure-relief valve, an expansion tank if your home needs one, and a drain pan are all set, so your new unit's protected. The relief valve and its discharge pipe are the parts people skip. Both are code, and both matter if the water heater ever over-pressures.

Clean-Up Included

We lay down protection, tidy the work area, and take all the old parts and packaging with us when we go. Protection goes down before the old tank moves. Nothing about a water heater installation should leave a mark on your floor.

Tested Before We Leave

We fill it, fire it up, check for leaks, and confirm you've got hot water before we pack up. We do not leave until hot water reaches a tap. A quick temperature check confirms the water heater is set where it should be.

Choosing the Right Water Heater

Not sure what to get? Here's the short version — and we'll walk you through it on the call. Gas water heater or electric water heater is usually the first question. Your existing hookups answer most of it, and the pipe already in the wall usually settles the rest.

Gas vs. Electric

Gas heats faster and usually costs less to run; electric is simpler to install where there's no gas line. We'll tell you which fits your setup. A gas water heater needs venting; an electric water heater needs the circuit. Neither is difficult when the plumbing is already there.

Tank vs. Tankless

A tank is lower upfront cost and the simplest swap; a tankless gives endless hot water and lasts longer for a higher upfront price. Tankless water units cost more up front and last longer. A tank is simpler to swap and cheaper on the day.

What Size You Need

Roughly: 40-gallon for 1–3 people, 50 for 3–5, larger or tankless for bigger households. We size it to how much hot water you actually use. Household size drives it more than square footage. Water heaters are sized to peak demand, not to the house, and hot water use is what sets that peak.

Want the most efficient option? We also install heat-pump (hybrid) units that can cut water-heating costs. And if your current unit is on its way out, we handle water heater replacement too. Heat-pump water heaters need clearance and a drain nearby. We check both before recommending one for your home, since the drain pan and the discharge line both have to reach.

How Our Water Heater Installation Works

Simple, straightforward. Here's how it works.

Step 1

You Call or Text

Tell us what you're after — a new unit, an upgrade, or a replacement. We'll ask a couple quick questions and find a time that works. Same-day is usually available.
Step 2

We Recommend the Right Unit

We look at your space, your hookups, and how much hot water you use — then recommend the size and type that fits. Gas, electric, tankless, or heat-pump.
Step 3

Upfront Price, Your Call

Before we touch a thing, you know the full price — unit, labor, and haul-away included. No surprises, zero pressure.
Step 4

Installed & Tested

We install the new unit, set up the safety pieces, test for leaks, and haul the old one away. You've got hot water before we leave.
(983) 209-1502

Why Homeowners Choose Us

Daniel's Water Heater Repair professional water heater installation

We're water heater experts, not a general plumber — repair, replacement, and installation is all we do, so we size it right and install it right the first time. Doing one job means we know the pipe sizes, the valve types, and the plumbing behind every water heater without looking it up.

Every make and model, the full price before any work starts, and a real person answers 24/7. Daniel's Water Heater Repair serves homeowners across Boulder and the surrounding metro. Gas water heater work, electric, tankless water systems, and heat pumps across the Boulder metro. Water heaters of every type, sized to the home rather than the shelf.

Water Heater Installation FAQ

These come up on almost every install, so here's the straight answer to each. These come up on most water heater installation calls.

Installation cost comes down to the unit and what your setup needs. A standard tank typically runs $1,000 to $3,000 to put in (electric cheaper, gas higher), while a tankless setup is usually $2,000 to $6,000. Either way, you'll have the full, exact price before we start. Where the pipe has to move, or a new valve and drain pan are needed, the number goes up. Plumbing changes are quoted as their own line rather than folded in.

Plan on roughly 2 to 4 hours for a standard tank install. A tankless job runs longer — usually 4 to 8 hours — since it often means adjusting the gas line, venting, or wiring. We confirm the timeline with you before we begin. A tankless water setup usually needs venting and a larger gas supply, which is where the extra hours go. The water lines may need resizing too.

Yes. We disconnect, drain, and remove your old unit and take it with us. It's included — no hauling it to the curb yourself. Old water heaters go on the truck the same visit. Nothing is left in the garage.

It depends on your household and how much hot water you use. Roughly, a 40-gallon tank suits 1 to 3 people, 50-gallon for 3 to 5, and larger or tankless for bigger households. We'll size it with you. Peak demand is the number that matters. Two showers at once needs more hot water than four people spread across a day, and water heaters are sized on that peak.

It comes down to your home's hookups, your budget, and how much hot water you use. We walk you through the trade-offs and recommend what fits — no pressure. Your existing pipe and vent runs narrow it quickly. A professional look at the hookups saves guessing, and the plumbing already in place decides most of it.

Ready for a New Water Heater?

Call or text — a real person answers 24/7, and same-day installation is the norm. Same-day water heater installation is the norm here, pipe work included.

(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. A leaking tank does not improve with time. The discharge pipe and the drain pan only buy you so long, and water damage costs more than the unit.

Call (983) 209-1502