Plumbing & Water

Tankless Water Heaters
Across South-Central PA

Endless hot water, lower energy bills, and no bulky tank taking up space. We properly size, vent, and install tankless systems for homes throughout Franklin, Cumberland, Adams, and York Counties.

Call 717-229-7144 Get a Free Quote

Tankless Water Heaters

Up to 30% More EfficientLower monthly energy costs than tank units

Space-Saving InstallFrees up room in older, compact utility spaces

Gas & Electric OptionsWhole-home or point-of-use configurations

Licensed & Insured — PA #T001718

No After-Hours Fees — Ever

Same-Day Service Available

100% Upfront Pricing

Serving Franklin, Cumberland, Adams & York Counties

Tankless Water Heaters

Tankless Water Heaters for
Homes Across the Region

Tankless is a strong fit for many South-Central PA homes. Older homes throughout Franklin, Cumberland, Adams, and York Counties often have small original utility spaces that a standard 50-gallon tank crowds out entirely — going tankless frees that space for real use. In newer suburban homes, tankless means larger households never run out of hot water.

Sizing and installation matter more with tankless than with a tank unit — gas line capacity, venting, and flow rate all need to be right the first time. That's exactly what we handle, with a clear price before we start.

No after-hours fees — ever.

Historic Home Space SavingsFrees up tight original utility closets common throughout our service area.

Handles Larger HouseholdsEndless hot water for families in newer suburban and rural homes.

No More Tank FailuresEliminates the risk of a failed tank flooding a basement.

Gas Line Assessment IncludedWe check capacity before installing so the unit performs as expected.

Tankless Installation Services

What’s Included

From assessment to final testing, every step is included in your upfront quote.

On-site assessment of gas line, venting, and electrical capacity

Whole-home and point-of-use tankless system installation

Gas line upgrades when needed for proper unit performance

Removal and disposal of your old tank unit

Proper venting installation to code

Water flow rate and temperature calibration

Manufacturer warranty registration

Follow-up support if you have questions after install

How It Works

From Call to Completion

STEP 01

Free On-Site Assessment

We evaluate your gas line, venting path, and hot water demand to recommend the right unit.

STEP 02

Upfront Quote

You get one flat price covering the unit, any gas line work, and full installation.

STEP 03

Professional Install

Proper venting, gas connection, and mounting — done to code, not shortcuts.

STEP 04

Test & Walkthrough

We test flow rate and temperature and walk you through operating your new system.

Why Keystone PHS

Why Homeowners Choose Us

Sized Correctly the First Time

Undersized tankless units are the most common complaint we fix for other installers. We size it right up front.

$0 After-Hours Fees

Same flat rate whether we're installing on a Tuesday morning or a Saturday evening.

One Team, Full Install

Gas line work and installation handled by the same crew — no subcontractor gaps.

Common Questions

Frequently Asked Questions

Most homes are, but gas line capacity and venting path matter, especially in older homes. We do a free on-site assessment before quoting so you know exactly what's involved.

Yes — hard water can scale a tankless heat exchanger faster than a standard tank. This region's mineral-heavy water makes it a real consideration, and we'll talk through softener pairing during the assessment.

Tankless units can be up to 30% more energy efficient than tank models since they only heat water on demand rather than maintaining a full tank around the clock.

Yes, we install tankless systems throughout rural and well-dependent properties across all four counties too.

Get Started Today

Request a Free Quote

Tell us about your project and we'll be in touch within the hour. Or call us directly at 717-229-7144 — no after-hours fees, ever.

Get a Free, No-Obligation Quote

Reach out and we'll ask a few quick questions to get you scheduled — usually within the hour.

Prefer to Call?

717-229-7144

Same-day service available
No after-hours fees — ever

Serving Franklin, Cumberland, Adams & York Counties

Licensed & insured in PA

Upfront pricing — no surprises

Family-owned & local

Find Tankless Water Heaters Near You

Browse by County

Click your county below for a full list of towns we serve, with local details for each.

Tankless Water HeatersAcross South-Central PA

Tankless Water Heaters forHomes Across the Region