Periodic gas inspections are required for all NYC buildings, with the only exception being properties classified in the R-3 occupancy group (single-family homes, detached two-family homes, or small group homes with fewer than 20 residents). If your building is a multi-family co-op, condo, apartment building, commercial property, or mixed-use space, you must comply.

If you're unsure of your building's classification code, call for assistance.

Your specific Local Law 152 inspection deadline is determined by your building's borough and Community District. The NYC Department of Buildings operates on a strict, repeating 4-year cycle.

If you aren't sure which district your property falls under, type your address into the NYC Planning "ZoLa" map tool or the DOB Building Information System (BIS). Once you have your district number, find your deadline below:

Local Law 152 inspections must be completed and filed once every 4 years according to the cycle schedule set by the NYC Department of Buildings. Once your district’s filing year closes, your 4-year clock resets until your district comes up again in the next cycle.

Only properties classified as Occupancy Group R-3 (single-family homes and semi-detached/detached two-family homes) are fully exempt from the law. 

Buildings without gas piping or buildings with gas piping but no active gas service must still file specialized exemption paperwork with the DOB to protect themselves from fines.

If you're unsure of your building's classification code, call for assistance.

Failing to file your Local Law 152 Gas Piping Certification by your district's December 31st deadline results in major civil penalties issued by the NYC Department of Buildings. The fine structure is based on your property classification:

$5,000 fine for commercial, mixed-use, and standard multi-family apartment buildings.

$1,500 fine for 3-family residential buildings.

If you can’t get your gas piping system inspected by your district’s deadline, the NYC DOB allows a one-time, 180-day extension. You must request this extension through the online DOB NOW portal before your official due date expires. Keep in mind that you still must complete and file the inspection before this 180-day grace period ends to avoid penalties.

 Read more on the different types of LL152 extensions.

Under the latest DOB update (Follow-Up #7), filing a No Gas but Gas Piping (NGGP) status is no longer a one-and-done submission. If your building contains gas infrastructure but the service is currently deactivated, you must have your utility company provide a statement certifying that service is fully disconnected. This documentation must be refiled every 4-year inspection cycle. For example, if you filed an NGGP certification during the last cycle, you are required to refile it when your Community District’s window opens up again to remain compliant and avoid fines.

If your building has completely zero gas infrastructure (such as a fully electric building with capped or removed lines), you are exempt from visual physical inspections. However, you must still document this with the city. You are required to have a Licensed Master Plumber, a Registered Design Professional, or your utility company submit a Certification of No Gas Piping electronically via the DOB NOW portal. According to the latest 2026 rules, this true "no piping" certification only needs to be submitted once and does not need to be refiled every cycle.

JTG Master Plumbing is not associated with Utility/ConEdison. 

Utility company inspections (like ConEd or National Grid) and NYC Local Law 152 mandates are completely separate. The utility company generally checks their own service lines and meters for leaks. Local Law 152 is a mandatory NYC Department of Buildings law requiring an independent check of the building's internal, exposed gas piping. To stay compliant and avoid fines, you must complete both.

There is no pressure test required in the LL152 inspection.

Unfortunately, we cannot submit your paperwork earlier than the year your property is due. If you have multiple properties, you may have multiple due dates, depending on where your properties are located. We will have to file your LL152 paperwork in accordance with the year each individual property is due. 

To find your property's due date, please refer to the Local Law 152 due dates per Community District here.

A defect found during the inspection doesn't mean you FAIL or that the DOB and utility need to be immediately called in. It doesn’t necessarily mean your building is going to have to shut off the gas supply to the building. The main concern is if there is an immediately hazardous condition, then notifying the DOB becomes important. Read more information here.

JTG Master Plumbing values our customers' property investments. We want to provide you a trustworthy service, without the possibility of a conflict of interest in terms of plumbing repair requirements. 

We're open Monday-Friday 9:00am - 5:00pm, except certain holidays. Please see our Google My Business for special holiday hours.

If you are paying online, you will receive an email from accounting@jtgmp.com. You can pay online with the link provided.

If you're paying by check, please make your check out to JTG Master Plumbing and mail it to the following address:

JTG Master Plumbing Corp.

752 East 137th Street

Bronx, NY 10454

For scheduling questions/changes, please email to scheduling@jtgmp.com. 

It depends on your situation. If you are close to the due date, contact JTG to help file an extension. If you are already past your due date, you will need to file as soon as possible.

In order for your Local Law 152 inspection to be accepted by the NYC Department of Buildings (DOB), your gas piping inspection must be completed by a Licensed Master Plumber (LMP), or a qualified individual working under the direct and continuing supervision of a LMP. Inspections must be completed every 4 years.

JTG Master Plumbing is not affiliated with the NYC Department of Buildings (DOB). We simply perform Local Law 152 Inspections and file your paperwork in accordance with the DOB processes and requirements.

NYC Local Law 152 requires a visual inspection once every 4 years by a NYC Licensed Master Plumber of a building's exposed gas piping system from the point-of-entry up to, but not including, tenant spaces. They’re looking for gas leaks, corrosion, and illegal connections. The inspection entity also needs to walk the pipes and buildings with an approved gas detection device.

Once the gas piping system has been inspected, within 60 days, any corrective actions that are found must be completed and reinspected, paperwork must be signed & sealed, and certification must be filed. In some cases, a 120 day extension can be filed to allow more time for corrective action.

Corrective actions must be corrected in compliance with NYC Construction Codes, this includes obtaining required work permits!