
Tankless Water Heaters
Tankless Water Heater Installation & Repair in Bucks & Montgomery County, PA
On-demand gas tankless water heaters installed, replaced, and serviced by a Registered Master Plumber. Endless hot water, lower gas bills, and 20+ year lifespan when installed and maintained correctly.
Same-day & next-day appointments available.
Tankless Water Heaters — Done Right by a Local Master Plumber
A properly sized tankless water heater gives your family endless hot water while cutting standby losses that make a traditional tank run all day. Angermeier Plumbing installs and services Rinnai, Navien, Rheem, and Bosch tankless units across Bucks and Montgomery County, PA — sized correctly for your fixtures, vented correctly for combustion safety, and gas-piped correctly so the unit actually delivers the BTUs the manufacturer promises.
About half the tankless service calls we get are on units another company installed with an undersized gas line — the unit modulates down and never delivers full flow. We size the whole system: gas, venting, water piping, and condensate.
When to Call
When Tankless Makes Sense
- ⚠️Running out of hot water in the middle of showers
- ⚠️Existing tank is 10+ years old and due for replacement
- ⚠️Finishing a basement or adding a bathroom and need more capacity
- ⚠️Wanting to free up floor space in a utility room or garage
- ⚠️Looking for a longer-lifespan replacement (20+ years vs 10–12)
- ⚠️Vacation home where a tank sits and rusts most of the year
- ⚠️Whole-house recirculation without keeping 50+ gallons hot 24/7
Our Process
Our Tankless Installation Process

1. Fixture-based sizing
We count your simultaneous fixtures and set winter groundwater temperature to size the unit for real-world flow — not marketing sticker GPM.
2. Gas line audit
Most tankless units need a 3/4" gas line and a right-sized meter. We check gas capacity before quoting the job — the #1 cause of underperforming tankless.
3. Venting & combustion air
Category IV stainless or PVC venting run to code, with condensate drain and neutralizer where required.
4. Water piping & isolation valves
New isolation service valves so future descaling takes 30 minutes, not a whole afternoon.
5. Startup & registration
We commission the unit, verify inlet gas pressure under load, and register the warranty in your name.
What We Handle
Tankless Services We Provide
New Tankless Installation
Full new installs including gas, venting, water, and condensate — sized for your household and Bucks County groundwater temps.
Tank-to-Tankless Conversion
Replacing a failed 40/50/75-gallon tank with a correctly-sized tankless unit and freeing up utility room space.
Tankless Repair
Error codes, ignition issues, low flow, and scale build-up on any major brand — whether we installed it or not.
Annual Descaling & Maintenance
Vinegar or chemical flush to prevent scale from destroying the heat exchanger — essential on Bucks County well water.
Recirculation Loops
Adding recirculation pumps and dedicated return lines for instant hot water at far bathrooms.
Warranty & Registration Service
We register every install so you get the full 15-year heat exchanger warranty in writing.
Service Areas
Tankless Water Heaters Near You
Serving every town below across Bucks & Montgomery County, PA. Click your town for local details, or call 215-364-0133.
Answers
Tankless Water Heaters FAQs
How much does a tankless water heater cost installed?+
In Bucks and Montgomery County a whole-house gas tankless installation typically runs $4,500–$8,500 depending on the model, gas line work, and venting run. We give a fixed written quote after evaluating gas capacity and venting on-site.
How long does a tankless water heater last?+
Properly installed and annually descaled, a quality gas tankless lasts 20+ years — nearly twice the life of a tank. Skip descaling and hard water will kill the heat exchanger in half that time.
Will a tankless save me money on gas?+
Yes — most Bucks County homes see 15–30% lower water heating gas usage because you eliminate standby losses from keeping 50 gallons hot 24/7.
Can one tankless run two showers at once?+
A correctly sized whole-house unit (typically 199,000 BTU class) will run 2–3 fixtures simultaneously in our climate. Under-sized units struggle in winter when incoming water is 45°F.
Do you service tankless units you didn't install?+
Yes — we repair and descale every major brand (Rinnai, Navien, Rheem, Bosch, Noritz) regardless of who installed it.
What areas do you serve?+
Southampton, Warminster, Warrington, Feasterville, Bensalem, Yardley, Richboro, Huntington Valley, Newtown, Doylestown, Jamison, Hatboro, and surrounding Bucks & Montgomery County, PA communities.
Get a Tankless Water Heater Quote
Same-day appointments across Bucks & Montgomery County, PA.
📞 215-364-0133

