Insparisk is a NYC Local Law 152 gas piping inspection company serving all buildings with gas service. Licensed Master Plumber inspections, leak detection, and DOB compliance filing.
Local Law 152 of 2016 requires periodic inspection of gas piping systems in all buildings in New York City. The law was enacted following several tragic gas explosions and aims to identify potentially hazardous conditions before they become dangerous.
Insparisk coordinates comprehensive LL152 gas piping inspections through our network of licensed master plumbers, ensuring your building meets all DOB requirements and maintains safe gas infrastructure.
All buildings with gas piping must have their exposed gas piping inspected by a Licensed Master Plumber (LMP) or individuals working under an LMP's direct supervision. Inspection results must be filed with the DOB.
Any building in NYC that has gas service, residential, commercial, mixed-use, or institutional, must comply with LL152 inspection requirements.
GPS2 form (Gas Piping System Periodic Inspection Certification) must be filed with DOB within 60 days of inspection completion. The GPS1 inspection report goes to the owner within 30 days.
Gas piping system meets all code requirements with no defects or hazardous conditions observed. GPS2 certification filed as satisfactory.
Deficiencies identified that require repair. Non-hazardous conditions must be corrected within 120 days. Hazardous conditions require immediate action.
Insparisk provides end-to-end LL152 compliance support:
Don't wait for violations. Ensure your building's gas piping is inspected and certified.
Request a QuoteContent last reviewed June 2026.
All NYC buildings except those in occupancy group R-3 must have their gas piping inspected every four years, on a schedule set by community district.
The inspection must be performed by a NYC Licensed Master Plumber, or by a qualified person working under the direct supervision of a Licensed Master Plumber.
The GPS2 certification is filed with the Department of Buildings within 60 days of the inspection. Missing the deadline can bring a civil penalty of $5,000 (originally $10,000, reduced by amendment in 2021). See our complete Local Law 152 guide for the full filing timeline.
It covers exposed gas piping from the building's point of entry through public spaces to the meter. It does not include gas piping inside tenant units.