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Contracting

Kitchen Renovations On Long Island

A kitchen renovation is a plumbing job, a gas job and a contracting job at the same time. NJM does all three in-house, which means one schedule and one point of accountability across Nassau and Suffolk County.

FULL RENOVATIONSPLUMBING IN-HOUSETASK 86/87 GASLICENSED & INSURED
Licensed & Insured
Master Plumber
TASK 86/87 Certified
Navien NSS Certified
22+ YEARS ON LONG ISLAND

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Contracting

Kitchen Renovations Across Nassau & Suffolk County

A kitchen renovation touches more trades than any other room in the house. Water supply and waste, gas for the range, electrical for appliances, ventilation to the outside, and often structural work if a wall is coming out. Coordinate that across four companies and the schedule is only as good as the least reliable one.

NJM builds kitchens with the plumbing, the gas and the contracting handled by our own licensed team — Master Plumber on staff, TASK 86/87 certified for the gas connection. That means the rough-in happens when the schedule says it will, and the person who moved your gas line is the person accountable for it passing inspection.

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

What The Job Involves

Full Kitchen Renovations

Design & Layout

Working out what is possible before it is drawn. Where the waste stack and gas line sit constrains a layout more than most people expect.

Demolition

Strip-out with the rest of the house protected, and an honest assessment of anything found behind the cabinets.

Plumbing Rough-In

Sink, dishwasher and refrigerator supply and waste, run by a licensed Master Plumber with proper isolation valves.

Gas Line Work

Range and cooktop connections by TASK 86/87 certified staff, including moving or upsizing the line where a new appliance needs more than the old one.

Ventilation

Extraction ducted to the outside and sized for the appliance. A recirculating hood over a serious range is not ventilation.

Structural Changes

Removing or altering walls to open a kitchen up, with the framing and any required support handled properly and permitted.

Cabinets, Counters & Finishes

Installation and finishing by the same crew that did the rough-in.

Permits & Inspections

Applied for and attended as part of the job, in both Town and Village jurisdictions.

Contracting — 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.

Financing provided throughSynchronyCredit is extended by Synchrony. Subject to credit approval.
Call 631-587-0085Not sure which one you need? Call and describe it — we will tell you before we book anything.
What Drives The Budget

The Layout Decides The Price, Not The Cabinets

Almost everybody budgets a kitchen from the cabinets and the counters, because those are the numbers you can look up. The number that actually moves is whether the water, waste and gas stay where they are.

Cabinets and worktops are a known quantity. You can price them from a brochure, and two quotes for the same units land in roughly the same place. What separates a straightforward kitchen from an expensive one is almost always the wet wall — the run where the supply, the drain and usually the gas already live.

Keep the sink and the range broadly where they are and the mechanical work is largely connection work. Move them, and the questions multiply. A drain needs fall, so a sink crossing the room may mean opening the floor to get the pitch, and on a slab that is a very different job from a house with a basement underneath. Gas needs a line sized for the appliance, not just a connection that reaches. Ventilation needs a route to an outside wall, and a hood on an interior island is a duct run through a ceiling before it is a hood.

None of that means keep your bad layout. If the kitchen does not work, it does not work, and a wall in the wrong place is worth what it costs to move. The point is that the decision should be made with the number attached rather than discovered halfway through, because the difference between the two versions is usually the largest single choice in the project.

So the useful order is: work out what is behind the wall first, then design. We would rather spend an hour telling you what your house makes easy and what it makes expensive than have you fall in love with an island that turns out to need the floor up. Because the plumbing, the gas and the building are all our own team, that is one conversation rather than three site visits.

Quick Rules Of Thumb

  • Cabinets and counters are the predictable half of the budget
  • Keeping the sink and range near the existing services is the big saving
  • A drain needs fall — moving a sink can mean opening the floor
  • A slab house and a basement house are completely different jobs
  • An island hood is a duct run through the ceiling before it is a hood
  • Find out what is behind the wall before the layout is settled, not after
Talk It Through — 631-587-0085
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Everything We Handle In Contracting

One licensed team, one number to call, across Nassau and Suffolk County.

Common Questions

Frequently Asked Questions

What actually makes one kitchen cost more than another?

Whether the water, waste and gas move. Cabinets and counters are the predictable half — you can price them from a brochure and two quotes land in a similar place. The mechanical half is where kitchens diverge. Keeping the sink and range near where the services already run makes it largely connection work; moving them across the room brings in drain fall, gas line sizing and a ventilation route, and on a house built on a slab that can mean opening the floor. It is worth knowing which version your design is before you commit to it.

I want an island with a sink and a hood. Is that a problem?

Not a problem, but it is the expensive version and you should know that going in. An island sink needs a drain with proper fall running out to the stack, which means getting under the floor — straightforward with a basement beneath, a much bigger job on a slab. An island hood is a duct run through the ceiling before it is a hood. Both are done all the time and both are worth it if the island is what makes the kitchen work. We would just rather you chose it with the number attached.

Can you tell me what my house makes easy before I design anything?

Yes, and it is the most useful hour in the whole project. Where the existing wet wall runs, whether there is a basement or a slab under the kitchen, what the gas line can carry, and where a hood could realistically vent — those four answers shape what a sensible layout looks like for your house specifically. Getting them before the design is settled is how you avoid redesigning around a surprise. Call 631-587-0085 and we will come and look.

Do I need to upgrade the gas line for a bigger range?

Sometimes, and it depends on the appliance rather than the room. A high-output range can draw more than an older line was sized to deliver, and the honest answer needs the specification of the unit you are actually buying rather than a guess. Send us the model when you have chosen it and we will tell you. We are TASK 86/87 certified for the gas work, so if it does need upsizing that is our own crew rather than another company in the schedule.

Can I move the sink or the range?

Usually, but both have constraints. The sink is limited by where waste can run at the correct fall and where venting allows. The range is limited by the gas line and by ventilation. Neither is impossible — they are just costs, and it is far better to know them while the layout is still on paper.

Do I need a bigger gas line for a new range?

Sometimes. Higher-output ranges draw more gas than a standard one, and if the existing line is already supplying a boiler and a dryer it may not have the capacity. Adding an appliance to an undersized line makes everything on it underperform. We calculate the load before connecting anything, and upsize the line in-house if needed.

How long does a kitchen renovation take?

It depends on scope, what is behind the walls, and cabinet lead times — which are frequently the longest item and worth ordering early. We will give you a realistic schedule after seeing the space. Having the plumbing and gas in-house removes the between-trades delays that stretch most kitchen jobs.

Can you take out a wall to open the kitchen up?

Often, yes, but it depends on whether the wall is load-bearing and what is running through it — which is frequently plumbing, gas or electrics. We will establish that before anything is promised, and handle the framing, support and permitting if it goes ahead.

Does my extraction hood need to vent outside?

For a serious range, yes. A recirculating hood filters grease and returns the air to the room; it does not remove moisture or combustion products. If you are cooking on a high-output gas range, ducting to the outside is worth doing properly at renovation time when the walls are open.

Do you handle permits for a kitchen renovation?

Yes. Plumbing, gas and any structural work require permits and inspection. We apply and attend as part of the job.

Do you offer financing?

Yes. A kitchen is one of the larger projects most households take on, and financing lets it happen on your schedule. We finance through Synchrony, subject to credit approval. Ask when you call and we will go through the options.

Are estimates free?

Yes, free and with no obligation. We will want to see the kitchen first — a renovation estimate given without looking is a guess. Call 631-587-0085, or use the form 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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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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What Long Island Says

Reviews From Homes & Businesses We've Served

5 out of 5 stars

NJM was the recommended plumber to install our new undermount sink and faucet. We had new counter and backsplash done and the sink was a different size. Neil (the N in NJM) was the best! He came at the end of his day, added us in and did a great job. He had all the parts needed in his truck. He was neat, professional and a master at his trade The existing pipework was quite a mess. Neil was able to repair and replace and left it working perfect. I would highly recommend NJM.

Jake TorresDecember 2022
Reviewed on Google

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
Reviewed on Google

5 out of 5 stars

I couldn't recommend Neil enough! From start to finish him and his team were professional, efficient and experienced. We had a job pulling up rocks and putting top soil down which I know can be a tedious job. We appreciate the work and look forward to working with the team again.

KrisApril 2025
Reviewed on Google

Read all 87 reviews from Google and Housecall Pro →

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