Bathroom remodel in Yonkers, where the permit is two permits
Yonkers is not Manhattan and it is not Westchester’s open suburbs. It is a dense, older city of its own, with its own building department, its own plumbing board, and a housing stock whose median building went up in 1957. That last number quietly drives most of what follows. It decides what is likely behind your tile, it decides why the city makes you pull a second permit just for the plumbing, and it is the reason two honest quotes on the same street can land a long way apart. Here is what is specifically true about remodeling a bathroom in this city.
Most Yonkers bathrooms are not in single-family houses
This shapes the whole project and it is worth saying plainly. According to the Census Bureau’s American Community Survey (2019–2023 five-year estimates), Yonkers has roughly 83,900 housing units, and just over half of them — about 42,800 — sit in buildings of five units or more. Only about 29 percent are single-family homes, detached or attached. Another 20 percent sit in two-, three- and four-unit buildings.
If your bathroom is in a multi-unit building, the constraint is rarely your own apartment. It is the waste stack running vertically through the building, shared with the units above and below you, and the wet wall it sits in. Work that touches that stack affects neighbors, not just you, and in a co-op or condo it usually means building management sign-off on top of the city permits. Ask a contractor early whether your plan touches the shared stack at all, because the answer changes the cost, the timeline and the number of people who have to approve it.
One licensed, insured contractor. Free, no obligation, and we never sell your information.
A median build year of 1957, and what that usually means behind the tile
The Census puts the median year built for Yonkers housing at 1957. That single figure is the most useful thing you can know before demo day, because construction from that era — broadly the 1940s through the 1960s — typically used galvanized steel for supply lines and cast iron for waste and soil stacks. Neither was a bad choice at the time. Both have a finite service life, and a building from 1957 is now at or past the end of it.
To be clear about what that is and is not: the 1957 figure is verified Census data, but the pipe material is a reasonable expectation based on how buildings of that age were plumbed, not a guarantee about your specific wall. Galvanized supply pipe corrodes inward and shows up as weak pressure and rusty first-draw water. Cast iron fails from the inside where you cannot see it. The practical move is to ask a contractor what they expect to find and what happens to the price if they find it — before signing, not after the wall is open. Our guide on where bathroom remodels go wrong covers how to keep that discovery from turning into an open-ended change order.
Yonkers makes you pull two permits, and the second one is priced per fixture
This is the detail that surprises people, and it is genuinely specific to this city. Permits are issued by the City of Yonkers Department of Housing and Buildings at 20 South Broadway, and a bathroom remodel generally needs two separate filings: a building/alteration permit, and a separate plumbing permit through the department’s Division of Plumbing.
The published fee schedule sets the building permit for a one- or two-family dwelling at a $125 filing fee plus $15 per $1,000 of estimated construction cost, up to $1,000,000. The plumbing permit is charged differently — $100 base plus $25 per fixture — so a bathroom with a toilet, a sink and a tub or shower is billed on three fixtures, not on one job. A water, storm or sewer service connection is $200 on top. Changing plumbing contractors mid-job carries its own $150 fee, which is a quiet argument for picking the right one the first time.
Run the math on a realistic job and it is real money but not frightening money: on $30,000 of declared work with three fixtures, that is $575 in building permit fees and $175 in plumbing permit fees, a little over $750 combined. What matters is whether it appears on your quote at all. A Yonkers estimate that never mentions the plumbing permit is either absorbing it or has not planned for it.
Your plumber has to be licensed to work in Yonkers specifically
The city code makes it unlawful to install, alter or repair a plumbing system in Yonkers without a certificate of competency from the city’s Examining Board of Plumbers. The plumbing permit application itself requires the applicant to attest to being a master plumber and to supply a license number before the permit will issue.
The consequence for a homeowner is simple. A general remodeler who is excellent at tile is not automatically able to pull the plumbing permit on your job — either they hold that license, or they are bringing in a licensed plumber who does. Ask which it is and get the name. If nobody in the answer is a licensed plumber, the permit cannot be filed, and unpermitted plumbing work in an older multi-unit building is exactly the kind of thing that surfaces later at a sale or an insurance claim. The Division of Plumbing can be reached directly at (914) 377-6566 if you want to confirm how your job should be filed.
Check the Westchester County license before you sign anything
Separate from the city’s plumbing license, home improvement contractors working in Westchester County must be licensed through the Westchester County Department of Consumer Protection. And unlike a lot of consumer protections, this one is genuinely easy to use.
The county runs a public licensed contractor lookup where you can search by company name, applicant name or trade — and selecting “All” with a blank search field will list every record in the database. That is a two-minute check before you hand anyone a deposit, and most homeowners never do it. The department can also be reached at (914) 995-2155. If a contractor cannot be found in that database, stop and ask why before going further. Our guide on how to hire a bathroom remodeler walks through what else to verify at the same time.
Why nobody can honestly quote you an average Yonkers bathroom price
It is worth being straight about this, because every other page you will find on this search tries to give you a number. We looked for a trustworthy local price range for a Yonkers or Westchester bathroom remodel and could not find one. The figures circulating online come from contractor lead-generation sites and sponsored placements, none of which publish a sample size or a methodology, and their ranges disagree with each other by a factor of eight or more. Repeating one of those numbers here would not be information, it would just be a guess wearing a citation.
What we can tell you is what actually moves the number in this city: whether the plumbing has to move, whether the building is multi-unit and the stack is shared, whether 1950s-era supply lines get replaced while the wall is open, fixture count driving the permit, and building access in a walk-up. Our bathroom remodel cost guide breaks down how those pieces stack up so you can read a real quote critically, which is worth considerably more than an invented average.
Older buildings, smaller rooms, and layouts that fight back
Bathrooms in mid-century Yonkers apartment buildings and two-families tend to be compact, with the fixtures set where the original plumbing put them. In a room that size, the layout decisions matter more than the finishes: door swing, whether the vanity holds anything, and whether converting a tub to a shower actually gains usable floor space or simply relocates the problem.
Because the wet wall and stack position are often fixed by the building’s original construction, moving a drain is a much larger undertaking here than in a house where you own the entire plumbing run. Decide the layout before anyone orders tile. If accessibility is part of why you are remodeling, our guides on tub-to-shower conversions and walk-in and accessible showers cover what the plumbing actually has to do to support it.
One thing that is not part of your remodel, but is worth knowing
New York’s Lead Pipe Right to Know Act required water systems statewide to inventory lead and galvanized service lines, with replacement of identified lead lines mandated over the following years. This concerns the service line running from the water main to the building — the utility’s side of things — not the pipe inside your bathroom wall, and a bathroom remodel does not by itself trigger it.
It is on this page for one reason: in a city whose median building dates to 1957, homeowners hear about it and reasonably wonder whether it is their contractor’s problem. It generally is not. But if you are already replacing aging supply lines inside the unit, it is a fair question to ask your plumber where your building actually stands.
ZIP codes we cover in Yonkers
10701, 10703, 10704, 10705, 10706, 10710
Common questions
Do I need a permit to remodel a bathroom in Yonkers?
Generally two of them. The Department of Housing and Buildings issues the building/alteration permit — $125 filing plus $15 per $1,000 of estimated construction cost for a one- or two-family dwelling — and the Division of Plumbing issues a separate plumbing permit at $100 plus $25 per fixture. A quote that never mentions the plumbing permit has not accounted for it.
Can my remodeler do the plumbing themselves?
Only if they hold a Yonkers plumbing license. City code requires a certificate of competency from the Examining Board of Plumbers to install, alter or repair plumbing here, and the permit application requires a master plumber’s license number. Otherwise a licensed plumber has to be part of the job — ask for the name before you sign.
How do I check whether a contractor is licensed?
Westchester County requires home improvement contractors to be licensed through its Department of Consumer Protection, and it runs a free public lookup you can search by company or applicant name. It takes about two minutes and most homeowners skip it. The department is at (914) 995-2155.
What is a bathroom remodel likely to cost in Yonkers?
We will not give you a number, because no trustworthy local figure exists — the ranges published online come from lead-generation sites with no stated methodology and they disagree wildly. What drives cost here is whether the plumbing moves, whether the waste stack is shared with other units, and what condition 1950s-era supply lines turn out to be in once the wall is open.
My building is from the 1950s. What should I expect behind the tile?
The Census puts the median Yonkers building at 1957, and construction from that era typically used galvanized steel supply lines and cast-iron waste stacks, both of which are at or past their expected service life. That is an expectation, not a certainty about your wall — so ask your contractor what they expect to find and what it does to the price if they find it.
Licensed, insured, five-plus years in the trade. One company per area — never a list of five.