About PES

Princeton Engineering Services, PC (PES) has been in business since 1999.  The firms key personnel possess experience ranging from ten to thirty years and have experience working for clients such as ConEdison, Reliant Power, Pfizer, Bristol Myers Squibb, Merck, Proctor & Gamble, and AT&T.

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Our Services

We are experienced in a wide variety of professional engineering services.

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Princeton Engineering Services HVAC Design


PES provides quality mechanical designs due to realistic and in-depth data, and client input. We push the envelope and go far beyond the obvious solutions, to ensure a design that reduces energy consumption and cost. Our mechanical engineering services include:

• Facility Assessment & Energy Audits
• Life Cycle Cost Analysis
• Feasibility Studies
• HVAC Systems
• Central Chiller Plants
• Central Heating Plants
• Ice Storage
• Industrial Ventilations
• Energy Recovery
• Temperature Controls
• Solar Thermal Systems

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Princeton Engineering Services Electrical Services

Electrical, I.T. & Security

To protect our clients’ facilities, PES’s electrical design capabilities include:

• Electrical System Analysis, Assessment and Planning
• Power Distribution Analysis and Design
• Emergency Standby and Cogeneration Systems
• Medium Voltage System Design
• Fault Current / Arc Flash / Coordination Studies
• Lighting Design and Controls
• Energy Code and LEED Compliance
• Fire Alarm Systems
• Paging / Public Address / Sound Systems
• Solar Photovoltaic (PV) Systems
• Low Voltage and Communication Systems
• UPS (Uninterruptible Power Supply) Systems
• Power Quality Management

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Princeton Engineering Services Plumbing & Fire

Plumbing & Fire Protection

Our plumbing professionals are highly skilled in the innovative design, specification and inspection of plumbing systems of varied size and complexity. Our Plumbing Engineering Services include:

• Hot Water Recirculation Systems
• Back Flow Preventers
• Acid Waste Systems
• Process Piping
• Water Supply Systems

PES’s NICET certified designers provide reliable fire protection systems that are both efficient and cost effective. It’s important that systems are successful early in detecting, containing, controlling and/or extinguishing a fire.

MEP’s fire protection design services include:

• Fire Pump Design
• Sprinkler Systems
• Standpipe Systems

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Recent Projects

Below are some of our latest completed projects.

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