PLUMBING ENGINEERING

At PEI Engineering, our plumbing engineers design safe, efficient, and code-compliant systems that deliver reliability, comfort, and sustainability. From commercial buildings and multifamily developments to healthcare and industrial facilities, we create complete plumbing solutions that integrate seamlessly with mechanical, electrical, and fire protection systems. Our designs focus on water conservation, maintainability, and long-term performance to meet both client needs and local regulations.

Domestic Cold and Hot Water System Design
Sizing and layout of water distribution systems, including risers, circulation loops, pressure-reducing stations, and temperature maintenance systems.

Sanitary and Vent System Design
Design of sanitary drainage, waste, and vent piping per local plumbing codes and standards to ensure safe and efficient waste removal.

Storm and Roof Drainage Design
Hydraulic sizing of roof drains, leaders, and storm piping systems to protect buildings from water accumulation and flooding.

Natural Gas Piping Design
Gas system design including service entry, pressure regulation, and distribution to mechanical equipment and appliances per code.

Domestic Water Heating Systems
Central and decentralized water heating design including heat exchangers, storage tanks, recirculation pumps, and mixing valves.

Water Conservation and Sustainability
Specification of low-flow fixtures, greywater systems, rainwater harvesting, and other sustainable plumbing solutions.

Medical Gas and Laboratory Piping Systems
Design of medical air, vacuum, oxygen, and specialty gas systems for healthcare and laboratory applications per NFPA 99.

Plumbing Equipment and Fixture Coordination
Selection and coordination of fixtures, floor drains, interceptors, and backflow preventers with architectural and interior design layouts.

Utility Service Coordination
Coordination of domestic water, sewer, and gas services with civil and site utilities for seamless integration.

Construction Administration and Field Support
Submittal review, RFI responses, and site observation to ensure installation aligns with design intent and code compliance.