About GBL Mechanical Inc

Installing a plumbing system in a multiple-unit building requires planning, code knowledge, and seamless execution. We bring over 15 years of hands-on experience managing complex installations in high-density residential and commercial environments.

We provide:

• - Accurate system layout and riser design
• - Pressure-balanced water distribution
• - Code-compliant waste and vent systems

• - Efficient coordination with HVAC and fire protection trades
• - Timely fixture rough-ins and trim-outs
• - Thorough pressure testing and inspection preparation

Every component is installed with long-term performance, code compliance, and tenant satisfaction in mind.

Scalable Plumbing Workforce for Multi-Unit Projects

With over 30 full-time team members and more always joining, our plumbing workforce is more than able to tackle multi-unit projects. We’re trained, licensed, and experienced in managing plumbing system installations in high-rise, mid-rise, and mixed-use buildings. From rough-in through final inspection, we staff every job to meet the unique size and schedule demands of large residential and commercial developments. Our crews ensure that plumbing infrastructure is completed on time and to specification.

GBL Mechanical Inc’s Plumbing Services

GBL Mechanical Inc provides plumbing system solutions that meet all code and performance requirements.

We provide:

• - Multi-unit residential plumbing systems
• - Commercial plumbing networks
• - NFPA-compliant fire sprinkler systems

• - Water supply and drainage infrastructure
• - Fire pump installation and backflow prevention
• - System testing, inspections, and service plans

We align all systems with local, state, and national plumbing codes from day one.

Commitment to Plumbing System Performance and Longevity

Our reputation is built on the reliability of our plumbing systems and the integrity of our service. We don’t take shortcuts during installation or hand off maintenance once a system is active. Our team follows best practices for long-term functionality, including proper pipe sizing, system zoning, and pressure regulation. We also offer routine service plans, emergency support, and ongoing system evaluations to keep your plumbing infrastructure in top condition.

Licensed Plumbing Contractor in NY, NJ & CT

Our work is regional, but always local in approach. As a licensed multi-state plumbing contractor, we understand the permitting processes, inspection schedules, and municipal requirements in every area we serve. That means smoother approvals, better coordination, and faster project execution.

Giving Back to Our Community

In addition to our regular services, we also offer a Give Back Program, which provides free services to elderly individuals, those with disabilities, or people going through a tough time. The whole process, including labor and materials, is completely free. All it takes is an application, and then we scan to see how many we can take on. If you’d like to apply, please reach out to our team to inquire about the process.