NJM Mechanical & Contracting

Current Offers

What it says on the coupon is what comes off the bill. No code to enter, nothing to print — mention it when you call and we will apply it. Our service call rate stays published either way, so you know what a visit costs before anyone gets in a truck.

NASSAU & SUFFOLKLICENSED & INSUREDTERMS STATED PLAINLY

CALL NOW — 631-587-0085 Get A Free Estimate →

Quote the code when you book and again when the technician arrives — it comes off the bill at the end. There is nothing to print and no voucher to lose. If an offer does not fit your job we will say so rather than let you find out afterwards.

Everyone

Whatever You Need Us For

Applies across plumbing, heating, cooling and gas.

$50 Off

Your First Service Call

New to NJM? Fifty dollars off the first time we come out — one licensed team for plumbing, heating, cooling and gas.

Code NJM-FIRST50Expires October 31, 2026See the details →

Plumbing

Plumbing Offers

$50 Off

Any Plumbing Service

Whatever has gone wrong, fifty dollars off the repair.

Code NJM-PLUMB50Expires October 31, 2026See the details →$25 Off

Drain Cleaning Service

A slow drain that keeps coming back is usually telling you something. We clear it and find out what.

Code NJM-DRAIN25Expires October 31, 2026See the details →$50 Off

Sump Pump Replacement

The time to find out a sump pump has failed is not during the storm.

Code NJM-SUMP50Expires October 31, 2026See the details →$50 Off

Leak Repair

Found the leak or still looking for it — fifty dollars off putting it right.

Code NJM-LEAK50Expires October 31, 2026See the details →$50 Off

Water Heater Repair

Cold shower this morning. Fifty dollars off getting the hot water back.

Code NJM-WHREP50Expires October 31, 2026See the details →$100 Off

Water Heater Replacement

Most 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 Off

Tankless Water Heater Installation

Navien NSS certified, so commissioning is done to manufacturer spec and the warranty stands.

Code NJM-TANK200Expires October 31, 2026See the details →$25 Off

Toilet Repair

Running, rocking or refusing to flush properly.

Code NJM-TOILET25Expires October 31, 2026See the details →$100 Off

Toilet Replacement

Supplied and fitted, with the flange and the seal done properly rather than shimmed.

Code NJM-TOILET100Expires October 31, 2026See the details →$50 Off

Faucet Replacement

Kitchen or bathroom, supplied and installed with the shutoffs checked while we are under there.

Code NJM-FAUCET50Expires October 31, 2026See the details →$50 Off

Gas Leak Repair

If you smell gas, leave and call from outside. TASK 86/87 certified, 24 hours a day.

Code NJM-GAS50Expires October 31, 2026See the details →$100 Off

Water Filtration System Installation

Sized to your water rather than to whatever is on the shelf.

Code NJM-FILTER100Expires October 31, 2026See the details →Maintenance Plans

Plumbing Maintenance & Checks

Shutoffs that will not shut off, a water heater past its years, a supply line nobody has looked at. Preset or custom plans, for homes and for commercial properties.

Code NJM-PLUMBPLANNo expiryAsk us →

Heating

Heating Offers

$200 Off

Heating System Replacement

Replacing a system before the cold sets in, sized from a load calculation rather than from whatever was there before.

Code NJM-HEAT200Expires October 31, 2026See the details →$50 Off

Heating Repair

No heat, not enough heat, or heat in only half the house.

Code NJM-HEATREP50Expires October 31, 2026See the details →$200 Off

Furnace Replacement or Installation

Sized properly, vented properly, and commissioned before we leave.

Code NJM-FURN200Expires October 31, 2026See the details →$50 Off

Furnace Repair

Blowing cold, short cycling, or not turning on at all.

Code NJM-FURNREP50Expires October 31, 2026See the details →$200 Off

Boiler Installation or Replacement

Gas, oil or high-efficiency condensing, with the near-boiler piping done right.

Code NJM-BOIL200Expires October 31, 2026See the details →$50 Off

Boiler Repair

Fifty dollars off the repair, whatever the boiler is doing.

Code NJM-BOILREP50Expires October 31, 2026See the details →Maintenance Plans

Heating Maintenance & Tune-Ups

Boilers and furnaces mostly fail in January, and mostly after a year nobody looked at them. Preset or custom plans, for homes and for commercial buildings.

Code NJM-HEATPLANNo expiryAsk us →

Cooling

Cooling Offers

$200 Off

A/C System Installation

Load calculation first. A system that is too big cools the air without pulling the moisture out of it.

Code NJM-AC200Expires October 31, 2026See the details →$50 Off

A/C System Repair

Fifty dollars off the repair. We find what failed rather than topping it up and leaving.

Code NJM-ACREP50Expires October 31, 2026See the details →$200 Off

Ductless Mini Split Installation

For the room that has never been comfortable, without running ductwork to it.

Code NJM-SPLIT200Expires October 31, 2026See the details →Maintenance Plans

Cooling Maintenance & Tune-Ups

A system nobody services runs longer to do the same job, costs more doing it, and picks the first heat wave to stop. Preset or custom plans, for homes and for commercial buildings.

Code NJM-COOLPLANNo expiryAsk us →

Contracting

Contracting Offers

10% Off

Your Renovation

A percentage rather than a flat figure, because a bathroom and a dormer are not the same amount of money and one number cannot suit both.

Code NJM-RENOExpires October 31, 2026See the details →

Filing And Inspections

Babylon and Lindenhurst are incorporated villages with their own building departments. We file, we meet the inspector, and we do not leave that with you.

Code NJM-PERMITNo expirySee the details →

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.

Estimate visitNo charge

You already know what you want done

A boiler replaced, a bathroom rebuilt, a gas line run. We come out, look at the job and give you a number.

No obligation

Diagnostic visitQuoted on the call

Something has failed and nobody knows why

A licensed technician and the time to find what has actually gone wrong. One rate across plumbing, heating, cooling and gas, and one number to reach us on — there is no separate line to find at midnight. You get the figure before anyone is dispatched, and after-hours, weekend and holiday work is quoted the same way.

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.

One Call Handles It All

Plumbing, heating, cooling, gas, and contracting from one licensed Long Island team. Free estimates, 24/7 emergency response, and 22+ years of doing it right.

CALL 631-587-0085 Get A Free Estimate →

Book it and quote the code

Tell us what is going on and which offer you want. We will confirm it applies before anyone gets in a truck — or tell you if it does not.

22+ YEARS ON LONG ISLAND

Get Your Free Estimate

LICENSED & INSURED · NASSAU & SUFFOLK
PLUMBING · HEATING · COOLING · CONTRACTING

Have An Emergency? We’re Available 24/7.

631-587-0085WE ANSWER EVERY CALL