PLUMBINGPlumbing Installations & Replacements
Licensed plumbing installations & replacements for Long Island homes & businesses. Fixtures, repiping, water lines & more across Nassau & Suffolk County.
- FIXTURES
- REPIPING
- WATER LINES
- LICENSED & INSURED
From a slow drain to a full repipe, NJM handles residential and commercial plumbing across Nassau and Suffolk County. Master Plumber on staff, licensed and insured, with 24/7 emergency response when a pipe will not wait.
22+ YEARS ON LONG ISLANDLICENSED & INSURED · NASSAU & SUFFOLK
PLUMBING · HEATING · COOLING · CONTRACTING
Have An Emergency? We’re Available 24/7.
631-587-0085WE ANSWER EVERY CALLPlumbing is the trade people call when something has already gone wrong, usually at an inconvenient hour. NJM has handled that call across Nassau and Suffolk County since 2004 — leaks, clogs, water heaters, gas lines, full repipes and commercial work — with a licensed Master Plumber on staff and technicians who answer the phone around the clock.
Long Island housing stock creates its own pattern of problems. Post-war Capes and ranches with original galvanized supply lines, cast iron waste stacks reaching the end of their service life, and additions plumbed by whoever was cheapest at the time. We work on these houses every week, which means we usually know what we are looking at before the wall comes open.
Master PlumberLicensed to pull permits
TASK 86/87Certified for gas work
Navien NSSFactory-trained on tankless22+ years on Long Island · Plumbing, heating, cooling, gas and contracting under one roof
One licensed team, one number to call, across Nassau and Suffolk County.
PLUMBINGLicensed plumbing installations & replacements for Long Island homes & businesses. Fixtures, repiping, water lines & more across Nassau & Suffolk County.
PLUMBINGFast leak detection & repair across Nassau & Suffolk County. Advanced equipment, no unnecessary demolition. Licensed Long Island plumbers, 24/7 service.
PLUMBINGClogged drains or sewer backups? NJM clears clogs fast across Nassau & Suffolk County. Licensed Long Island plumbers, 24/7 emergency response.
PLUMBINGTankless, gas & electric water heater installation & replacement on Long Island. Navien NSS certified. Free estimates across Nassau & Suffolk County.
PLUMBINGCleaner, safer water for Long Island homes & businesses. NJM installs water filtration, softeners & treatment systems across Nassau & Suffolk County.
PLUMBINGLicensed commercial plumbing for Long Island offices, restaurants, retail & multi-family properties. Installations, repairs & 24/7 emergency service.
PLUMBINGTASK 86/87 certified gas line repair, installation & leak detection on Long Island. Licensed, insured & 24/7 emergency response across Nassau & Suffolk.
PLUMBINGTASK 86/87 certified gas inspections for Long Island homes & businesses. Pressure testing, leak detection & code compliance across Nassau & Suffolk.
We don’t charge to quote a job. We do charge to find a problem nobody has identified yet. Which one you need — and what it costs — gets agreed on the phone, so nothing about the cost is a surprise on the doorstep.
You get the number on the phone, before anyone is dispatched, and it is what you are charged when the technician arrives. One rate across all four trades — plumbing, heating, cooling and gas.
A licensed, insured technician carrying the certifications the work needs, and the time to find what has actually failed — not a quick look and a guess.
A call-out advertised at almost nothing gets recovered once someone is standing in your basement. Get the number before anyone travels — from us, or from anyone else you call — and hold them to it when they arrive.
A boiler that fails in January is not a purchase anyone planned. Financing is available on the big-ticket work, so a system replacement does not have to come out of savings in one go.
Boiler, furnace and water heater replacement, a full air conditioning system, a whole-house repipe, sewer and water main work, and larger contracting jobs — kitchens, bathrooms, dormers and extensions.
At the estimate, before anything is scheduled. It is worth asking even if you think you will not need it, because knowing it is there changes what you are willing to consider fixing properly.
The price of the job. The quote is the quote whether you finance it or not — and on a straightforward repair it is usually not worth the paperwork. We will tell you which one you are looking at.
Two questions sort most plumbing problems into the right half of the trade before anyone opens a wall — and they are worth answering before you call, because they change who we send and what goes on the truck.
First: is water not arriving, or is it not leaving? Those are two different systems that happen to meet at your fixtures. Weak pressure, discoloured water, no hot water, a bill that jumped — that is the supply side, the pipework bringing water in under pressure. Slow drains, gurgling, backing up, smells — that is the drain and waste side, which moves water out under gravity. A plumber who arrives knowing which half it is starts an hour ahead.
Second: is it one fixture or all of them? One slow sink is almost always a local blockage in that fixture trap or branch. Every drain in the house running slow at once, or the lowest one backing up when you use an upstairs one, points at the main line — the house drain, the sewer lateral or, on the unsewered blocks, the cesspool. Same on the supply side: one weak tap is usually that fixture aerator or angle stop, while pressure down everywhere points at the service line, the main, or piping that has narrowed over decades.
Those two answers between them tell you most of what a first visit would establish. A single slow drain is a different job, a different price and a different urgency from a main line backing up, and it is worth knowing which conversation you are having.
And a note on what not to do while you wait. If a drain is backing up, stop running water into it — a washing machine or dishwasher discharging into a blocked main is how a slow drain becomes a flooded floor. If water is coming out somewhere it should not, shut the main off before anything else. Chemical drain cleaner is the one we would ask you to skip: on a main line it rarely reaches the blockage, and it means whoever opens that pipe is opening a pipe full of caustic.
What it says on the coupon is what comes off the bill. Mention it when you call.
Whatever has gone wrong, fifty dollars off the repair.
Code NJM-PLUMB50Expires October 31, 2026See the details →$100 OffMost tanks last eight to twelve years on Long Island water. Replacing one on a Tuesday you chose costs less than a Sunday it chose.
Code NJM-WH100Expires October 31, 2026See the details →$200 OffNavien NSS certified, so commissioning is done to manufacturer spec and the warranty stands.
Code NJM-TANK200Expires October 31, 2026See the details →By whether water is failing to arrive or failing to leave. Pressure that has dropped, water that runs discoloured, no hot water, a bill that jumped with no change in use — those are supply-side, the pressurised pipework bringing water in. Slow drains, gurgling, anything backing up, drain smells — those are the waste side, which moves water out under gravity. They are two different systems that only meet at your fixtures, and knowing which one you are describing is genuinely useful on the phone.
No, and the difference matters. A single slow fixture is nearly always a local blockage in that trap or the branch behind it — a contained job. Every drain slow at once, or the lowest drain in the house backing up when you run something upstairs, points at the main line: the house drain, the sewer lateral, or on the unsewered blocks the cesspool. That second one is urgent, because the next thing that discharges into it comes back up through the lowest fixture.
We would rather you did not. On a main line it rarely reaches the blockage, because the blockage is well beyond where the liquid stalls. What it does reliably do is mean that whoever opens the pipe is opening a pipe full of caustic, and it can attack older pipe while it sits there. If a drain is backing up, the useful thing is to stop running water into it — a washing machine or dishwasher discharging into a blocked main is how a slow drain becomes a flooded floor — and then call.
Ours does, and on plumbing work that matters more than on most trades, because getting to the pipe often means opening something. When the plumbing sits with one company and the making-good sits with another, the job stops at the point the pipe is fixed and the room stays unfinished until somebody else has an opening. Plumbing, heating, cooling, gas and general contracting are all our own licensed team, so the wall goes back as part of the same job.
Yes. NJM holds Master Plumber certification, which is what allows us to take on every category of plumbing work across Nassau and Suffolk County rather than only the simple jobs. We are also TASK 86/87 certified for gas work and fully licensed and insured.
Yes, without qualification — 24 hours a day, every day of the year, including nights, weekends and holidays. Burst pipes, sewer backups and failed water heaters are the calls that cannot wait, and someone answers. Regular office hours are Monday through Friday 7:00 AM to 6:00 PM and Saturday 7:00 AM to 5:00 PM.
A sudden jump with no visible cause usually means a leak behind a finish, under a slab or in an underground service line. Turn off every fixture and watch the water meter — if it is still moving, water is going somewhere. That is the point to call, because hidden leaks cause structural damage long before they surface.
Constantly. Post-war Capes and ranches across Nassau and Suffolk have galvanized supply lines and cast iron waste stacks that eventually need replacing, along with additions plumbed to a standard that would not pass today. We work on these houses every week.
Yes. NJM is TASK 86/87 certified, which is the certification New York requires for legal gas work. That covers new gas lines for ranges, dryers, generators and heating equipment, plus leak detection, pressure testing and the code compliance paperwork.
Yes — offices, restaurants, retail spaces and multi-family properties across Long Island. Commercial jobs get the same licensed crew and the same response times, scheduled around your operating hours where we can.
Yes, for diagnostic visits — where something has failed and nobody knows why yet. It buys a licensed technician's time to find what has actually gone wrong, and it is one rate across plumbing, heating, cooling and gas. We give you the figure on the phone, before anyone is dispatched, and after-hours, weekend and holiday calls are quoted the same way. Estimates for new installations and renovation work are free.
All of Nassau County and all of Suffolk County, from our base in North Babylon. Babylon, West Babylon, Lindenhurst and Deer Park are on our doorstep; we work west into Massapequa, Farmingdale and Hicksville and north through Commack and Dix Hills. That list is where we get asked about most, not where we stop. Call 631-587-0085 if you are not sure whether you are in range.
Yes, free and with no obligation. Tell us what is happening and we will give you a straight number. Send it through the form and we will be in touch within 24 hours, or call 631-587-0085 for anything urgent — that line is answered around the clock.
Based in North Babylon, working across both counties — close enough to get there fast, local enough to know the housing stock and the permit offices.
Proudly serving all of Nassau and Suffolk County, with deep local roots near our North Babylon home base.
Get A Free Estimate5 out of 5 stars
Called Neil on the spur of the moment on a Saturday afternoon because my bathroom sink backed up and when I plunged it nothing but black water came up. I really opened up Pandora's box. Neil was able to come same day and fix the problem. Glad I had his number handy.

5 out of 5 stars
As always, Neil is a pleasure to have as my plumber. He is so professional and knowledgeable. I wouldn't use anyone else! I highly, highly recommend him.

5 out of 5 stars
Most recently, Neil came to my house to look at an issue I was having with the plumbing of my pool heater. Despite being very busy, he squeezed my job in. This morning he came by early to give everything a test. No surprise, it works perfectly. Thank you Neil!!!


Free estimates with no obligation, 24/7 emergency response, and 22+ years serving homes and businesses across Nassau and Suffolk County.