Whole-House Repipes
Replacing corroded galvanized supply lines — the single most common large plumbing job in post-war West Babylon housing. Done by a licensed Master Plumber, permits pulled through the Town.
NJM Mechanical & Contracting
Plumbing, Heating & Cooling In West Babylon
West Babylon is the largest hamlet in the Town of Babylon, and most of it went up in the post-war building boom. That means a lot of houses hitting the age where original supply lines and heating systems need replacing.
POST-WAR HOUSINGREPIPES & BOILERS24/7 EMERGENCYLICENSED
Licensed & Insured
Master Plumber
TASK 86/87 Certified
Navien NSS Certified
22+ YEARS ON LONG ISLANDGet Your Free Estimate
LICENSED & INSURED · NASSAU & SUFFOLK
PLUMBING · HEATING · COOLING · CONTRACTING
Have An Emergency? We’re Available 24/7.
631-587-0085WE ANSWER EVERY CALLWest Babylon
Plumbing, Heating & Cooling In West Babylon
West Babylon is the largest hamlet in the Town of Babylon, with a population north of forty thousand, and the great majority of it went up during the post-war building boom. That gives the whole hamlet a shared mechanical age — and a shared set of problems arriving at roughly the same time.
What that means in practice is repipes and heating replacements. Galvanized supply lines corrode inward until pressure drops and the water runs rusty. Cast iron waste stacks crack at the hubs. Boilers and furnaces installed decades ago are still running but burning far more fuel than a modern system would. We are five minutes away in North Babylon and do this work in West Babylon most weeks of the year.
24/7 Emergency ServiceLicensed & Insured
Master PlumberLicensed to pull permits
TASK 86/87Certified for gas work
Navien NSSFactory-trained on tankless
22+ years on Long Island · Plumbing, heating, cooling, gas and contracting under one roof
Before you call
Two kinds of visit. You’ll know which before we come.
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.
The rate you are told is the rate
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.
What it pays for
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.
Watch for the bait and switch
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.
Financing on larger jobs
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.
What it is normally used for
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.
When to bring it up
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.
What it does not change
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.
Call 631-587-0085Not sure which one you need? Call and describe it — we will tell you before we book anything.
What We Do Here
Services In West Babylon
Waste Stack Replacement
Cast iron stacks of this vintage eventually fail at the hubs. Replaced properly rather than patched, because a patched stack fails again a few feet along.
Boiler & Furnace Replacement
Gas, oil and high-efficiency systems for houses still running original or first-replacement equipment. We will show you the running-cost difference honestly.
Air Conditioning
Central air where the ductwork supports it, ductless mini-splits where it does not — which in Capes with converted upstairs space is often the better answer anyway.
Water Heaters
Tankless, gas and electric. Navien NSS certified, so high-efficiency units are commissioned to spec and the manufacturer warranty stays intact.
Gas Lines & Inspections
TASK 86/87 certified gas work for ranges, dryers, generators and heating equipment, with inspections handled.
Dormers & Additions
The usual route to more space in a West Babylon Cape. Designed, permitted and built, with plumbing and heating in-house.
24/7 Emergency Service
Five minutes from the shop. We answer every call, every day of the year.
Current Offers
Money Off, Plainly Stated
What it says on the coupon is what comes off the bill. Mention it when you call.
Common Questions
Frequently Asked Questions
Why do so many West Babylon homes need repiping?
Because most of the hamlet was built in the same post-war period with galvanized steel supply lines, and galvanized corrodes from the inside out. The symptoms arrive gradually — falling pressure, rusty water after the house has sat unused, pinhole leaks. Houses built in the same decade tend to reach that point around the same time.
How do I know whether my supply lines are galvanized?
Galvanized pipe is grey steel and magnetic; copper is obviously copper. Look at the exposed pipe near the meter or water heater. If it is grey, magnetic and the house is post-war, it is almost certainly original galvanized. Falling pressure with no other explanation usually confirms it.
Who handles permits in West Babylon?
West Babylon is a hamlet, not an incorporated village, so permits go through the Town of Babylon. We pull them and see the inspections through as part of the job.
Is it worth replacing a boiler that still works?
Sometimes. An older atmospheric boiler sends a real share of the fuel you pay for up the flue, and across a Long Island heating season that adds up. But a well-maintained older unit with one failed control is usually worth repairing. We will give you both numbers rather than pushing the bigger job.
Can you do the plumbing and the contracting on a dormer?
Yes, and that is the point of using us. A dormer is framing, plumbing and heating at once. When it is one licensed team there is one schedule and one company accountable, rather than three contractors waiting on each other.
Are estimates free?
Yes, free and with no obligation. Call 631-587-0085, or use the form on this page and we will be in touch within 24 hours.
Service Area
Proudly Serving Long Island and Surrounding Areas.
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.
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- Long Island
- Nassau County
- Suffolk County
Towns We Serve
Proudly serving all of Nassau and Suffolk County, with deep local roots near our North Babylon home base.
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Reviews From Homes & Businesses We've Served
5 out of 5 stars
The experience I had with with NJM Mechanical & Contracting was a pleasant one. I had the pleasure of doing business with Neil. The work I had done was a basement entrance to my yard and it came out wonderful. The work performed as well as the communication is 10/10.
Nick UrziaJune 2026
5 out of 5 stars
Neil has handled all my A/C needs over the years. He's very communicative and open about service charges. He never steers you wrong
Jim JacksonMay 2026
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.
Fritzi R.May 2026
Need A Licensed Plumber In West Babylon?
Free estimates with no obligation, 24/7 emergency response, and 22+ years serving homes and businesses across Nassau and Suffolk County.