# Apartment Repiping NYC | Co-op & Condo Branch Lines | NYC Repipe & Repair > Apartment repiping in NYC co-ops and condos: branch lines back to the riser in copper, planned around board approval and riser shutoffs. Free estimates. URL: https://nycrepipe.com/apartment-repiping/ # Apartment Repiping in NYC Co-ops and Condos For shareholders and unit owners replacing the branch lines they own, under the building's alteration agreement and shutoff rules. Get a free estimate → [☎ Call (929) 659-6658](tel:+19296596658) By NYC Repipe & Repair · Last reviewed October 19 New copper branch lines tied into a building riser behind an opened bathroom wall. Illustrative. [NYC Repipe & Repair](https://nycrepipe.com/) handles apartment repiping in New York City co-ops and condos: the hot and cold branch lines inside your unit, replaced in Type L copper from the building riser to each fixture. In most buildings the shareholder or unit owner owns those branches and the building owns the risers, so this is the part of the plumbing you pay for. The work runs under your alteration agreement, with the board's engineer review, the managing agent's shutoff schedule and the building's working hours built into the plan. Most apartments take a few days on site. ## What happens on the first visit 1. Every riser serving the apartment located, hot and cold, with the material of each tie-in point noted. 2. Pressure and flow checked at each fixture, to separate a branch problem from a riser, pump or roof-tank problem. 3. Your alteration agreement checked for engineer review, insurance, hours and shutoff fees. 4. A written, itemized price with the shutoff plan and wall openings marked, ready for the board package, before anything is booked. ## What you own: branch lines versus risers In most New York City co-ops and condos, the plumbing splits at the riser. The vertical risers that carry hot and cold water up through the building belong to the building. The horizontal branch lines that leave the riser and feed your kitchen and bathroom fixtures belong to you. The exact line is set by your proprietary lease or condo declaration and your alteration agreement. [Habitat](https://www.habitatmag.com/Archive2/415-November-2023/Shifting-the-Burden) reports that some co-ops now go further and make a renovating shareholder replace the floor-to-floor riser sections inside the apartment as well. City property records (MapPLUTO) show **70% of Manhattan’s elevator co-ops and 98% of its walk-up co-ops were built before 1940**, when galvanized steel was the standard supply pipe. Against a typical working life of 40 to 60 years, original galvanized branches in those buildings are long past it. Typical symptoms: rust-colored water at your taps only, weak flow in one bathroom, or a stain on the ceiling below. If pressure is low throughout the line, start with [low water pressure in an NYC apartment](https://nycrepipe.com/answers/low-water-pressure-nyc-apartment/), because the cause may be the riser, the roof tank or the pumps rather than your branches. ## The alteration agreement and board approval Apartment repiping is an alteration, so nothing starts until the board signs off. A typical approval package includes: - **The scope and drawings** for the managing agent and the building’s engineer, whose review is usually billed to the shareholder. - **A certificate of insurance** from the plumbing contractor, with the additional insureds and limits the agreement sets. - **The plumber’s license and the DOB filing.** Replacing an apartment’s supply is filed in DOB NOW: Build as a Limited Alteration Application by a NYC Licensed Master Plumber. For co-ops and condos, [DOB’s LAA fee chart](https://www.nyc.gov/assets/buildings/pdf/laa_fee_chart_other.pdf) starts at $195 for work up to $3,000, plus $10.30 per additional $1,000, so a $10,000 job carries a $267.10 fee. - **The schedule**, inside the building’s permitted working hours, with noisy work and shutoffs on the days management allows. [Co-op alteration agreement plumbing requirements](https://nycrepipe.com/answers/co-op-alteration-agreement-plumbing/) covers the clauses that matter, including who pays if a riser is damaged during the work. ## Riser shutoffs and the tie-in Every riser connection means shutting that riser down for every apartment on the line, so buildings control it tightly. Shutoffs are booked through the managing agent with notice to neighbors, and some boards charge for each one; one co-op charged **$1,000 for each shutoff beyond the first**. A kitchen and a bathroom often sit on different risers, each with a hot and a cold side, so the shutoff count adds up quickly. Good planning keeps it to one shutoff per riser. The new Type L copper branch is built out in the apartment first, then each riser is shut down once to cut in a new full-port valve at the tie-in, so later work never needs the riser off again. Joints are soldered or permanent press; removable push-fit fittings are prohibited under PC 605.9, and PEX is not on the code’s list for water distribution ([2022 NYC Plumbing Code, ch. 6](https://www.nyc.gov/assets/buildings/codes-pdf/cons_codes_2022/2022PC_Chapter6_WaterSupplyWBwm.pdf)). Where copper meets a galvanized riser that stays, the joint gets an ASSE 1079 dielectric union or brass fitting (PC 605.24.1). The new branch is pressure-tested before walls close, and water is normally restored at the end of each working day. ## Cost, and when it becomes a riser job NYC contractors publish copper apartment repipes at **$3,000 to $8,000** ([The Plumber NYC](https://theplumbernyc.com/nyc-guide/why-nyc-bans-pex)), and supply replacement at $3,000 to $7,000 per unit ([handyman-new-york-city.com](https://handyman-new-york-city.com/guides/cost/pipe-replacement-costs-nyc/)). The price moves with the number of bathrooms, the distance from each riser, tile and plaster that has to be opened and restored, and the building’s own costs: engineer review, shutoff fees and restricted hours. [Cost to repipe an apartment in NYC](https://nycrepipe.com/answers/apartment-repipe-cost-nyc/) breaks these down. The cheapest time is during a kitchen or bath renovation; see [repiping during renovation](https://nycrepipe.com/repiping-during-renovation/). If only one bathroom’s branch is failing, partial [pipe replacement](https://nycrepipe.com/pipe-replacement/) may be enough. If the riser itself is leaking or the whole line has brown water, new branches won’t fix it. That’s a building project for the board, covered on the [water riser replacement](https://nycrepipe.com/riser-replacement/) page, and [who pays for riser replacement in a co-op](https://nycrepipe.com/answers/who-pays-for-riser-replacement-co-op/) explains how the cost is usually split. For local building stock, see [Manhattan](https://nycrepipe.com/boroughs/manhattan/), the [Upper East Side](https://nycrepipe.com/boroughs/upper-east-side/) and the [Upper West Side](https://nycrepipe.com/boroughs/upper-west-side/). ## What's included - Type L copper branch lines from each riser to each fixture - New full-port valves at every riser tie-in - Lead-free valves and fittings certified to NSF 372 - Dielectric or brass transitions where a galvanized riser stays - DOB NOW LAA filing by a NYC Licensed Master Plumber - Certificate of insurance and documents for the board package - Riser shutoffs coordinated with the managing agent - Pressure test before walls are closed > Weak shower, rusty sink, or both? A fixture-by-fixture pressure check shows whether it's your branches or the building's riser. [(929) 659-6658](tel:+19296596658) Typical NYC price $3,000–$8,000 per apartment, copper branch lines. Published range, not a quote. Sources: [The Plumber NYC, why NYC bans PEX](https://theplumbernyc.com/nyc-guide/why-nyc-bans-pex); [handyman-new-york-city.com, NYC pipe replacement costs](https://handyman-new-york-city.com/guides/cost/pipe-replacement-costs-nyc/) Calls answered 24/7 Leak right now? Shut the main valve by the meter, then call. [☎ (929) 659-6658](tel:+19296596658) Get a free estimate Spec
MaterialType L copper
CodeNYC PC T.605.4
Lead-freeNSF/ANSI 372
TransitionsASSE 1079
PermitDOB NOW · LAA
[Free tool Repipe cost estimator → Your house, your number, in under a minute.](https://nycrepipe.com/tools/repipe-cost-estimator/) The permit trail ## What a legal NYC repipe *leaves on the record* Every permitted repipe produces the same paper trail at the Department of Buildings. It's what a buyer's attorney, a co-op board or a lender will look for later. 1. DOB NOW: Build Filed Limited Alteration Application Filed by the Licensed Master Plumber, with the scope and the job cost. 2. DOB Issued Work permit Issued in real time for most repipes, and posted at the job. 3. On site Installed Type L copper in Run alongside the old pipe and switched over section by section. 4. Plumbing Code §108 Tested Pressure test The whole new system holds under test before walls close. 5. DOB Signed off Inspection and sign-off The job closes cleanly on the building's DOB record. Three ways it gets done ## Patch, cheap repipe, or permitted copper Three ways NYC pipe work gets done. Only one survives a co-op board, a refinance and the next winter. | What matters | DIY patch | Cheap operator | Permitted copper job | | --- | --- | --- | --- | | Pipe material | Whatever the hardware store sells, often PEX | PEX or thin Type M copper to save money | Type L copper, listed in NYC Plumbing Code Table 605.4 | | Fittings | Push-fit connectors (prohibited, PC 605.9) | Mixed: some push-fit, some solder | Soldered or permanent press joints; dielectric unions at steel | | Who may legally do it | Not the owner: NYC requires a Licensed Master Plumber | Often unlicensed, or a licence borrowed for the filing | A NYC Licensed Master Plumber, or a crew under one | | Permit | None | Often skipped (penalties start at $520, or $6,000 in 3+ family buildings) | Filed in DOB NOW and signed off | | Pressure test | None | Rarely | Whole system tested before walls close | | Co-op or condo board | Will not approve | Usually rejected at the insurance-certificate stage | Meets typical alteration-agreement requirements | | At sale or refinance | Unpermitted work can surface in inspection | Open DOB issues can delay closing | A clean DOB record for the job | Sources: [2022 NYC Plumbing Code, Chapter 6](https://www.nyc.gov/assets/buildings/codes-pdf/cons_codes_2022/2022PC_Chapter6_WaterSupplyWBwm.pdf); NYC DOB LAA fee and penalty charts ([1–3 family](https://www.nyc.gov/assets/buildings/pdf/laa_category_2_fee_chart_1-2-3_family.pdf), [other buildings](https://www.nyc.gov/assets/buildings/pdf/laa_fee_chart_other.pdf)). From the field ## What apartment repiping looks like in an NYC house Illustrative photographs of typical conditions and the copper that replaces them. Answered ## Apartment Repiping, answered Who pays to repipe a co-op apartment? Usually the shareholder, for the branch lines inside the unit. The common split in NYC co-ops is that the building owns the risers and the shareholder owns the branches, but the proprietary lease and alteration agreement set the exact line. Habitat reports that some co-ops now also make renovating shareholders replace the riser sections running through their apartment. How many riser shutoffs does an apartment repipe need? Ideally one per riser. A kitchen and a bathroom often sit on different risers, each with a hot and a cold side, so a two-room job can touch four. Building the new branches first and cutting in a valve at each tie-in keeps it to a single shutoff per riser. That matters: one NYC co-op charged $1,000 for each shutoff beyond the first. How long does an apartment repipe take? A few days on site for most apartments, with water normally restored at the end of each working day. The longer part is before work starts: board approval, the engineer's review and scheduling shutoffs with the managing agent can take several weeks, so start the board package early. Do I need a permit to repipe my apartment? Yes. Replacing an apartment's supply piping is longer than the 10-foot limit for ordinary plumbing work, so a NYC Licensed Master Plumber files it in DOB NOW as a Limited Alteration Application. For co-ops and condos, DOB's fee chart starts at $195 for work up to $3,000, plus $10.30 per additional $1,000. Who actually does the plumbing work? In New York City, permitted plumbing work must be performed by a NYC Licensed Master Plumber or by workers under an LMP's direct supervision, and the LMP files the permit in DOB NOW. Ask any contractor for the LMP's licence number before work starts, and check it on the DOB's public licence search. Further reading ## Related answers - [What Is the Cost to Repipe an Apartment in NYC?](https://nycrepipe.com/answers/apartment-repipe-cost-nyc/) - [What Are the Co-op Alteration Agreement Plumbing Requirements?](https://nycrepipe.com/answers/co-op-alteration-agreement-plumbing/) - [Why Is There Low Water Pressure in NYC Apartment Buildings?](https://nycrepipe.com/answers/low-water-pressure-nyc-apartment/) - [Who Pays for Riser Replacement in a Co-op?](https://nycrepipe.com/answers/who-pays-for-riser-replacement-co-op/) Related work - [Water Riser ReplacementBuilding riser projects for co-op and condo boards and managing agents, sequenced line by line to keep apartments on water.](https://nycrepipe.com/riser-replacement/) - [Pipe ReplacementOne failing run, one floor or one bathroom, replaced in copper without repiping the whole house.](https://nycrepipe.com/pipe-replacement/) - [Repiping During RenovationOpen walls are the cheapest time to repipe. Coordinated with your GC and architect, and filed correctly.](https://nycrepipe.com/repiping-during-renovation/) Get your apartment repiping priced in writing Pressure measured, pipe identified, an itemized price including the DOB permit.