Pressure Testing
Testing the system to confirm it holds pressure and has no leaks, documented for inspection or sale.
Plumbing
Gas Inspection Services On Long Island
TASK 86/87 certified gas inspections for homes and businesses across Nassau and Suffolk County. Pressure testing, leak detection and the code compliance paperwork handled properly the first time.
TASK 86/87 CERTIFIEDPRESSURE TESTINGCODE COMPLIANCELICENSED
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 CALLPlumbing
TASK 86/87 Certified Gas Inspections On Long Island
Gas inspections are one of those things people only think about when a sale, an insurer or a utility forces the issue — which is a shame, because the failures they catch are the ones that matter. NJM performs gas inspections for homes and businesses across Nassau and Suffolk County, TASK 86/87 certified, with the pressure testing and documentation handled properly.
An inspection is not a formality. It covers the condition of the piping, the integrity of the connections, appliance venting and combustion, and whether the whole system holds pressure the way it should. Where something fails, we can repair it — the same certified crew, rather than an inspection report you then have to find somebody else to act on.
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 We Check
Gas Inspection Services
Leak Detection
Instrument-based detection across joints, connections and appliance links rather than a visual once-over.
Piping Condition
Assessing corrosion, unsupported runs, improper materials and previous work that would not pass today.
Appliance Connections
Shut-off valves, flexible connectors and appliance links — some of the most common failure points found.
Venting & Combustion Air
Whether appliances are venting correctly and getting the combustion air they need. This is the part that becomes a carbon monoxide question.
Code Compliance
Checking the installation against current code, including work done before requirements changed.
Repairs On The Spot
Where something fails, we are certified to fix it. No second contractor to arrange.
Real Estate Inspections
Inspections for property sales and purchases, with documentation for the transaction.
Plumbing — 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.
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.
When You Need One
Reasons People Book A Gas Inspection
Gas work is the part of a property where being approximately right is not good enough. These are the situations that bring people to book an inspection.
You Can Smell Gas
Do not wait for an appointment. Leave the building, take everyone with you, and call the gas utility from outside — not from inside the house, and not after trying to find it yourself. Once the supply is made safe, call us and we will find the fault and repair the line properly.
Buying Or Selling A Property
A gas system that has been extended over decades by different hands is worth having looked at before contracts rather than after. It is a short visit that occasionally saves a very long argument.
Converting From Oil
Conversion means a new service, new line sizing and appliances the property has never had. Inspection is part of doing it properly, and TASK 86/87 certification is what allows us to do the gas side ourselves rather than subcontracting it.
Adding An Appliance
A new range, a dryer, a pool heater, a generator. Each one adds load, and a line adequate for what was there may not be adequate for what you are adding. Sizing is checked at inspection, not assumed.
The Utility Has Shut The Meter Off
A locked meter means something failed a test or was reported. Getting it turned back on means a repair and a pressure test that satisfies the utility — which is the work rather than the paperwork.
Yellow Flames Or Sooting
A gas flame should burn blue. Yellow or orange flames, soot around an appliance, or a pilot that will not stay lit are combustion problems and can mean incomplete burning. That is a same-week call, not a someday one.
More Plumbing Services
Everything We Handle In Plumbing
One licensed team, one number to call, across Nassau and Suffolk County.
Current Offers
Money Off, Plainly Stated
What it says on the coupon is what comes off the bill. Mention it when you call.
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 →$50 OffYour 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 →Common Questions
Frequently Asked Questions
When do I need a gas inspection?
Commonly when buying or selling a property, when an insurer or utility requires one, after work has been done on the system, or if you have any reason to suspect a problem. It is also worth doing on an older house where nobody knows when the piping was last looked at.
What does the inspection actually cover?
The condition of the gas piping, the integrity of connections and shut-offs, appliance venting and combustion air, and a pressure test to confirm the system holds. That last one is what catches leaks too small to smell.
What if the inspection finds a problem?
We can repair it. We are TASK 86/87 certified for gas work, so a failed inspection does not leave you holding a report and hunting for another contractor. We will tell you what is urgent and what can be scheduled.
What is TASK 86/87 certification?
It is the certification New York requires to work on gas legally — TASK 86 and 87 covering gas piping and appliance work. It means the inspection is performed by somebody trained and authorised, and that any documentation carries weight.
Can a gas leak be too small to smell?
Yes. The odourant added to natural gas makes larger leaks obvious, but a slow leak at a joint can be well below what you would notice while still being a genuine problem. That is exactly what a pressure test is for.
What should I do if I smell gas right now?
Leave the building. Do not operate any switch, appliance or phone on the way out — switching something off can spark just as easily as switching it on. From outside, call your gas utility’s emergency line first, then call us on 631-587-0085. Do not wait for an inspection appointment.
Do you inspect commercial gas systems?
Yes — restaurants and commercial kitchens in particular, where appliance loads and code requirements are both higher than in a home.
How much does a gas inspection cost?
Call 631-587-0085 and we will give you a straight number for your property, because it depends on the size of the system and how many appliances are on it. Our standard service call rate is one figure across all four trades, and you get it on the same call.
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 Plumbing Services Near You!
- Long Island
- Nassau County
- Suffolk County
Towns We Serve
- North Babylon
- Babylon
- West Babylon
- Deer Park
- Lindenhurst
- Farmingdale
- Massapequa
- Hicksville
- Dix Hills
- Commack
- Islip
- Hempstead
- North Hempstead
- Rockville Centre
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
Very satisfy with NJM mechanical. Very professional. Inspection pass the first time with complements. Neil explained what it needs to be done from the beginning to the end. He took his time to make sure I understood everything. I highly recommend NJM.
Wilson AmayaJanuary 2025
5 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.
Patricia NollJune 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 Gas Inspection Services?
Free estimates with no obligation, 24/7 emergency response, and 22+ years serving homes and businesses across Nassau and Suffolk County.