Boilers, Furnaces & Water Heaters
Replacement and repair across a housing stock where most of the original equipment has already been changed once. Tankless included — we are Navien NSS certified.
NJM Mechanical & Contracting
Plumbing, Heating & Cooling In Massapequa
Massapequa Park is an incorporated village with its own building department; the rest of the Massapequas are permitted through the Town. And in the flood zone, both require your heating, cooling and plumbing equipment to sit at or above base flood elevation.
VILLAGE & TOWN PERMITSFLOOD ZONE ELEVATIONCANAL-FRONT HOMES24/7 EMERGENCY
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
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631-587-0085WE ANSWER EVERY CALLMassapequa
Plumbing, Heating & Cooling Across The Massapequas
Four places share the name. Massapequa, North Massapequa and East Massapequa are unincorporated hamlets in the Town of Oyster Bay. Massapequa Park is an incorporated village with its own Building and Zoning Department, and the Town has no jurisdiction inside its lines. Two houses on the same street can therefore be permitted by two different departments, which is the first thing to establish and the thing most often got wrong.
The housing is remarkably uniform: the median Massapequa home was built in 1956, around ninety-seven per cent of the stock is detached single-family, and — unlike the slab-built tract housing further west — these houses have basements. That combination is why so much of our work here is mechanical replacement in a basement, and why the flood code below matters as much as it does.
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.
Flood Zone Work
Why Your New Boiler May Not Go Back Where The Old One Was
If your property is in a mapped flood zone, the rule is not advisory. Town of Oyster Bay code and Village of Massapequa Park code both state that new and replacement electrical equipment, heating, ventilating, air conditioning, plumbing connections and other service equipment must be located at or above the base flood elevation, or be designed and built to stop water entering and accumulating in the components during a flood.
Both jurisdictions also go beyond the federal minimum on elevation, requiring the lowest floor — explicitly including the basement — to sit two feet above base flood elevation in the mapped A zones. And both apply the substantial improvement test: once the cost of the work reaches fifty per cent of the market value of the structure, the whole building is pulled up to current standards, not just the part you were replacing.
In practice that means a boiler, water heater, furnace, air handler or condenser going back into a basement that floods is often not a legal replacement, and a job that looked like a straight swap turns into a relocation. It is far better to find that out at the quoting stage than after the equipment is on the truck. If you are in one of the low-lying sections, tell us when you call and we will factor it in.
Quick Rules Of Thumb
- Mechanical equipment at or above base flood elevation in a mapped zone
- Lowest floor, basement included, at BFE plus two feet in the A zones
- Work costing 50% or more of market value triggers full compliance
- Platform mounting, relocation to an upper floor, or flood-resistant design
- Condensers and gas meters on the south side take salt air as well as water
What We Do Here
Services In Massapequa & Massapequa Park
Central Air & Ductless
Full systems, and ductless mini-splits where a 1950s house has nowhere sensible to run ductwork.
Repipes & Leak Repair
Seventy-year-old supply piping does not fail politely. We trace leaks properly before opening walls, and repipe when repair has stopped being economic.
Drains, Sewers & Sump Work
The Massapequas are sewered through Nassau County. Older houses here still have running house traps and fresh-air inlets, and the water table south of Merrick Road is high enough that sump and ejector pumps are routine.
Gas Lines & Inspections
TASK 86/87 certified gas work, including pressure testing, code compliance, and the gas side of any equipment relocation.
24/7 Emergency Service
Every day of the year. If a storm has put water where the boiler is, that is the call we are set up to take.
Elevated & Relocated Mechanicals
Moving a boiler, water heater or air handler out of harm and up to code in a flood zone, including the plumbing, gas and venting changes that come with it.
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
Who issues my permit — the Village or the Town?
Whichever side of the village line the property is on. Massapequa Park is an incorporated village and permits go through its own Building and Zoning Department on Front Street. Unincorporated Massapequa, North Massapequa and East Massapequa go through the Town of Oyster Bay Building Division. Call 631-587-0085 with the address and we will tell you which applies.
Do I need a water softener in Massapequa?
Very unlikely. The Massapequa Water District draws from the Magothy aquifer and its own annual reports put total hardness in the single figures to low tens of milligrams per litre, which is soft water by any measure. The real local complaint is iron — the district has reported levels above the three-hundred microgram aesthetic standard and has run an iron removal system since 2021. Iron shows up as orange staining on fixtures and laundry, sediment in aerators and toilet fill valves, and fouling in tankless heat exchangers. That needs iron filtration, not a softener.
Why can my new boiler not go back where the old one was?
If the property is in a mapped flood zone, both Town of Oyster Bay and Village of Massapequa Park code require new and replacement heating, air conditioning and plumbing service equipment to be at or above base flood elevation, or designed to keep water out entirely. A basement that has flooded before is usually below it. That turns a swap into a relocation, and it is much cheaper to plan for at the quote than to discover on the day.
What does "substantial improvement" mean for my job?
It is the point at which the cost of the work reaches fifty per cent of the market value of the structure. Past that threshold, flood damage prevention code applies to the whole building rather than only to what you were replacing. It catches people out on larger renovations, and it is worth knowing about before you commit to scope.
Is Massapequa on public sewer or cesspools?
Public sewer, through Nassau County. Village of Massapequa Park code requires connection where a lateral is available and requires any cesspool on the property to be cleaned out, disinfected and completely backfilled once the connection is made. Isolated exceptions exist, as they do anywhere, but the Massapequas are a sewered area — which is a real difference from much of Suffolk County next door.
How far is Massapequa from your shop?
About eight or nine miles west along Sunrise Highway from 31 Magro Drive in North Babylon. Fifteen to twenty minutes in normal traffic.
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.
Find Service Near You!
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Towns We Serve
Proudly serving all of Nassau and Suffolk County, with deep local roots near our North Babylon home base.
Get A Free EstimateWhat Long Island Says
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
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