Rinnai, Navien, and more tankless water heater installation in the tri-state area
Limitless Interiors installs high-efficiency tankless units across Philadelphia, PA, NJ, and DE, so you get endless hot water without the bulky tank.
Lower bills and more space, every single month
Tankless water heaters heat water on demand, so you stop paying to keep a full tank hot around the clock. That means real savings and a smaller footprint.
Heat on demand
Water heats only when you turn on the tap, so no energy goes to waste keeping a tank hot.
Smaller footprint
A compact wall-mounted unit frees up floor space you can use for storage, laundry, or a home gym.
Consistent comfort
No more cold surprises mid-shower. You get steady, comfortable water no matter how many fixtures run.
Longer lifespan
Quality units last years longer than traditional tanks, which means fewer replacements and less hassle.
A fair price, even if it's not the lowest
We'll tell you what a tankless install should cost, what it shouldn't, and where cheap bids cut corners.
Standard installation
from $2,500
Straightforward replacement, same location, Rinnai or Rheem, includes permits and basic venting.
New unit included
Basic venting and gas line
Permits and inspection
System setup and testing
Upgraded installation
mid $4,000s
Navien or Noritz with recirculation, upgraded venting, and smart home integration for larger homes.
Premium brand unit
Recirculation pump
Smart thermostat integration
Upgraded venting
Two-day install
Complex installation
up to $6,500
New venting runs, gas line upsizing, or moving the unit. We quote it honestly after seeing the space.
New venting runs
Gas line upsizing
Unit relocation
Old unit removal
Ask us anything about installation
Straight answers on how tankless installs work, start to finish.
What does the tankless installation process look like?
We start with an in-home consultation to check your gas line, venting, and water pressure. Then we handle the full install, from mounting the unit to connecting the lines, and we test everything before we leave.
How long does a typical installation take?
Most standard installations are completed in a single day. The exact time depends on your home's existing setup, but we'll give you a clear timeline during the consultation.
Do I need to upgrade my gas line for a tankless heater?
Often, yes. Tankless units need a larger gas supply than tank heaters. We'll inspect your current line and let you know if an upgrade is part of the project before any work starts.
Will a tankless heater work with my home's water pressure?
In most cases, yes. We'll measure your water flow and pressure at the consultation. If your pressure runs low, we can talk about options to keep your showers strong.
Who installs the unit?
Our team handles the installation in-house. That means one point of contact from the initial visit to the final test, and no juggling separate contractors.
Can you match an existing unit's brand or model?
We install Rinnai, Navien, Noritz, and Rheem models. If you have a preference or an existing brand in mind, tell us during the consultation and we'll price it accurately.
Still have questions?
Call us and we'll walk you through your home's setup, no pressure.
Wondering how soon we can install your tankless water heater?
We can often handle replacements the same week you call. We'll confirm your timeline during your consultation, so there are no surprises.
One call sets your install in motion
Tell us about your space and we'll schedule a complimentary in-home consultation. Just know that our team responds to every inquiry within one business day.