Facilities Engineering

Comprehensive building maintenance and engineering solutions

For 129 years, GSH has been a pioneer in engineering, offering technical service excellence across various sizes and sectors since its inception in 1895. We have seen the increasingly rapid and complex shifts in diverse client infrastructures and needs. Today, utilizing an AlwaysON approach and in-depth process improvement measures, GSH provides a comprehensive service matrix in building maintenance and facilities engineering solutions including heating, ventilation, air conditioning (HVAC), mechanical, electrical, plumbing, and more.


Additionally, certified by the International Organization for Standardization (ISO), GSH adheres to strict, internationally recognized standards to ensure exceptional service quality throughout a contract’s duration.


As a result, we operate and maintain building assets by providing secure work environments, maximizing property and equipment longevities, routinely doing building inspections, ensuring cost-effective asset utilization, complying with ALL related health and safety policies, holding all related licenses and certifications, and, above all, exceeding client expectations.


Now, GSH is a globally recognized and trusted name with stationary engineers, building engineers, and technicians providing services to a wide spectrum of locations like airports, transit stations, government buildings, commercial real estate properties, higher education facilities, and more across the United States – with offices in New Jersey (NJ), New York (NY), California (CA), Texas (TX), Maryland (MD), Pennsylvania (PA), and Illinois (IL). Internationally, GSH provides quality services in UK, France, and India.


  • HVAC (Heating, Ventilation, Air Conditioning)


    GSH specializes in Heating, Ventilation, Air Conditioning (HVAC) Operations & Maintenance (O&M). Our building engineers and HVAC technicians possess extensive knowledge in varied operations, preventative maintenance, predictive maintenance, parts replacement, project management, and consulting services. Keeping facilities properly maintained and running at peak efficiency, our services include:

    • Adjusting, repairing, or replacing defective controls, wiring, and compressors
    • Testing for and repairing coolant leaks
    • Reclaiming existing coolant and charging with applicable coolant
    • Repairing or replacing fans and duct work
    • Repairing or replacing ventilation and exhaust systems
    • Repairing or replacing drains and automatic water feed units
    • Repairing or replacing blower motors
    • Adjusting or replacing controls, thermostats, wiring, pumps, and motors
    • Replacing defective housings and enclosures
  • PPM (Planned Preventative Maintenance)


    GSH simplifies PPM planning by implementing preventative and predictive maintenance processes early on, ensuring that assets are efficiently maintained throughout contract terms. By implementing and maintaining streamlined protocols with constant vigilance, GSH offers facilities’ improvements in quality of service, ownership cost reductions, risk mitigations, uptime length maximization, focused efforts, and improved reporting.


    Using Reliability Centered Maintenance (RCM) techniques, GSH can make the appropriate decisions to extend lifecycles and ensure integrities of assets, saving clients both time and money:

    • Predictive testing and inspection (PT&I): Utilizing measuring tools, such as vibration analysis or infrared thermograph, to predict failures
    • Condition-Based: Using BAS e.g., sensor detection for replacing compromised AHU filters
    • Statistics-Based: Using a database of Mean Time Between Failure (MTBF) or Trend Analyses to anticipate failures
    • Time-Based: Typically recommended by manufacturers e.g., monthly lubrications
  • MEP (Mechanical, Electrical, Plumbing) Services


    GSH provides on-demand, comprehensive MEP engineering solutions, encompassing the maintenance, repair, and optimization of mechanical, electrical, and plumbing systems e.g., commercial boiler systems. Utilizing ISO certified standards, process improvements, and best practices, GSH ensures efficient operations and prolonged equipment longevities with dedicated engineers and account administrators – scalable to client demands and scopes.

  • General/Handyman Maintenance


    One of GSH’s greatest strengths is its flexibility and scalability based on client needs. Depending on the scope, our general and handyman maintenance services cover a wide range of minor repairs and upkeep tasks, allowing smooth and constant functioning of various building elements with minimal downtimes – even for clients with multiple buildings in a region that requires constant necessary preventative maintenance and on-demand repairs.

  • Energy Management & Sustainability


    Energy management and sustainability practices aren’t just talking points; they can create tangible benefits for not only your operations and costs, but also for future generations.


    With our in-house subject matter experts in green building design, energy efficiency, building automation systems (BAS), and building management systems (BMS), GSH can evaluate your facilities’ utility usage and building control systems with focuses on cost and consumption reductions – leading to meaningfully smaller footprints.


    In fact, our dedication towards ESG and sustainability has led us to become carbon neutral since 2021 with plants to become carbon negative by 2025. To learn more, click here: GSH’s Commitment to Sustainability – GSH Group

Find The Right Tools For The Job

GSH offers a broad range of services tailored to support diverse sectors and projects. With our dedicated teams driving cost efficiencies and strategic sourcing, we ensure seamless operations. Partnering with a variety of businesses and companies, we deliver high-quality solutions as comprehensive, scalable service matrices. Our commitment to innovation and inclusivity enables us to exceed expectations and deliver exceptional results across all projects. Want a more comprehensive list of available services tailored to meet your needs?

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