New water heater installation in Harrisburg, PA
SAME-DAY INSTALLS ZERO HIDDEN FEES Licensed • Insured • Veteran-Supported • Google Guaranteed

Water Heater Installation & Replacement

Gas, electric, and tankless systems professionally installed across Central PA — with over 50 years of combined experience. Old unit hauled away and permits handled.

Financing partners: HelloRates (good credit) and Turns (credit challenges/fixed income).
6-Year AO Smith Tank Warranty • 1-Year Labor • PA170679

Using a homeowner-supplied heater? Installation is at the plumber’s discretion; no warranty on the unit or the connection point.

  • Thousands+

    Central PA installs

  • 50+

    years combined experience

  • 13

    counties covered

  • 6 yr

    AO Smith tank warranty

Water Heater Installation

Replacing a water heater is often a race against time: leaks, rusty water, or no hot water at all. Our team installs gas, electric, and tankless systems for homes and light commercial across Dauphin, Cumberland, York, Lancaster, and surrounding counties. We size the unit, verify venting and gas or electrical needs, pull permits where required, and remove your old tank the same day in most cases.

  • Correct sizing for household demand
  • Venting and gas or electrical verification
  • Permits handled where required
  • Old tank removal the same day in most cases

Choose the Right System

Gas (40–50 Gal)

Popular for families

Fast recovery and strong performance. Atmospheric or power-vent options. Typical install in 2 to 4 hours.

Best for 3–5 people Recovery: Fast Install: 2–4 hr
Get sizing help

Electric (50 Gal)

Lower upfront cost

Simple maintenance and a clean install when gas lines or venting are limited.

Best for 2–4 people Recovery: Moderate Install: 2–3 hr
See electrical requirements

Tankless (On-Demand)

Most efficient

Endless hot water, space saving, and high efficiency. Gas line and venting upgrades may be required.

Best for 3+ baths GPM sizing required Install: 4–7 hr
Check GPM and venting

Water Heater Sizing Help

Choosing the right water heater depends on household size, number of bathrooms, and how often hot water is used at the same time. We confirm sizing during your $99 diagnostic, but this quick guide helps you understand the basics.

40 gal Gas

  • • Best for 1–2 baths
  • • 2–3 people
  • • Fast recovery

50 gal Gas

  • • Best for 2–3 baths
  • • 3–5 people
  • • Most popular tank size

50 gal Electric

  • • Best for 1–2 baths
  • • 2–4 people
  • • Moderate recovery rate
  • Requires 30A double-pole breaker & 240V dedicated line

Tankless (On-Demand)

  • • Sized by gallons-per-minute (GPM)
  • • Best for 3+ baths or high-demand households
  • • Endless hot water, higher efficiency
  • May require gas line or venting upgrades

Not sure what’s right? Call us and we’ll confirm the correct size and requirements on-site before any work begins.

What’s Included With Installation

Transparent, on-site estimates with zero hidden fees. Your $99 diagnostic is credited when you proceed with installation. Commercial jobs require a credit card on file before scheduling and are COD upon completion.

Standard Tank Install (Gas or Electric)

AO Smith tank Expansion tank (as required) Dielectric unions Gas flex / drip leg (gas) Drain pan (where required) Haul away Permit guidance

Tankless Install

AO Smith / on-demand unit Venting to code Condensate trap Descaling ports Gas line sizing (as needed) Haul away Permit guidance

Final scope depends on venting, gas/electrical access, and local code updates. Estimates are reviewed with you on-site before any work begins.

Tech installing AO Smith water heater

Water Heater Installation — Harrisburg & Central PA

Same-day replacements, permits handled, old-unit haul-away, and AO Smith factory units with 6-year warranty.

  • AO Smith Units

    Gas, electric, propane — tank, hybrid, tankless.

  • Same-Day Replacement

    Call by 2 pm for fastest scheduling.

  • Permits & Haul-Away

    We pull permits and remove the old unit.

  • 6-Year Warranty

    We stand behind it — no worries.

AO Smith 6-Year Tank Warranty • 1-Year Labor Guarantee • PA170679 Licensed & Insured

Water Heater Installation FAQ

Do I need a permit for water heater replacement?

Yes, in many Central PA townships a permit is required. We handle the permit paperwork and inspection scheduling for you.

How long does installation take?

Most tank installs are done in 2–4 hours. Tankless systems require gas and venting upgrades and can take 4–7 hours.

Do you haul away the old heater?

Always included, unless a homeowner specifically wants to keep it. No hidden fees.

Do you service commercial installs?

Yes. For commercial installs, we require a credit card on file before scheduling and are COD upon completion.

Which brands do you install?

We strictly install AO Smith heaters and stand behind them with the 6-year manufacturer warranty and our 1-year labor guarantee. For homeowner-supplied units, installation is at the plumber’s discretion and carries no warranty on the heater or connection.

Ready for Hot Water Today?

Call now for an AO Smith installation with transparent, on-site pricing and same-day availability.

Financing partners: HelloRates (good credit) and Turns (credit challenges/fixed income).