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Boiler, Pipe & Sewer Repairs LLC

Fixtures

Under-Sink Water Filtration Installation

An under-sink filtration system ties into your existing cold water line and a dedicated faucet, giving you filtered water on demand without giving up counter or fridge space.

Under-sink 3-stage water filtration system with labeled carbon and membrane filters

We install under-sink water filtration systems — single-stage carbon filters, multi-stage RO (reverse osmosis) systems, and whole-cartridge setups — tying into the cold water supply line and adding a dedicated air-gap faucet at the sink.

In older NYC kitchens, this often means working around limited cabinet space and confirming there's a viable spot for a small RO drain line and, where needed, an air-gap fitting that meets code. We size the system to your household's water usage rather than defaulting to whatever unit is easiest to install.

Warning Signs

Signs You Need Under-Sink Water Filtration Installation

Relying on bottled water or a countertop pitcher filter

Renovating a kitchen and want a built-in filtered water tap

Noticeable chlorine taste or odor from the tap

Installing a new refrigerator with a filtered water/ice line

Replacing an old or leaking under-sink filter housing

Our Process

How It Works

01

System selection

We help you choose between carbon, multi-stage, and RO systems based on your water and household needs.

02

Supply line tie-in

The system connects to the cold water supply line under the sink.

03

Faucet & drain install

A dedicated filtered-water faucet is installed, with an RO drain line and air gap where applicable.

04

Test & walkthrough

The system is tested for leaks and flow, and we walk you through filter change intervals.

Our Work

Before & After

Photo gallery of specific completed jobs coming soon — here's what the visit typically looks like.

before

Before: Under-Sink Water Filtration Installation

after

After: Under-Sink Water Filtration Installation

Reviews

What Homeowners Say

I had a leak in my living room ceiling and couldn't figure out where it was coming from. Keon and his employee showed up quickly after I reached out. They were professional, patient, and took the time to explain everything to me.

Lisa B.

Brooklyn, NY · Pipe Repair

Worked on the complicated pipes in our 125-year-old home. We were satisfied with the work and would hire again.

Makeba D.

Brooklyn, NY · Pipe Repair

Keon was able to come the same day. He was very meticulous pinpointing the issue and tried to be as minimally invasive as possible.

Elias Z.

Brooklyn, NY · Pipe Repair

FAQ

Frequently Asked Questions

Carbon filters improve taste and odor and are simpler to install; RO systems remove a broader range of contaminants but require a drain line and periodic membrane replacement.

Most systems fit in a standard under-sink cabinet, but we confirm clearance during your estimate, especially in older NYC kitchens with limited space.

It depends on the system and your water usage, typically every 6-12 months for carbon stages; we'll give you the specific schedule for your unit.

Yes, we can run a filtered water line to a fridge with an ice/water dispenser as part of the installation.

Typically no for a standard under-sink unit, since it doesn't alter the building's main supply — we'll flag it if your specific setup is an exception.

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Need Under-Sink Water Filtration Installation?

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