Services

Sustainable engineering across six disciplines.

We focus on sustainable design practices, including carbon-free emissions, energy monitoring and management systems, load reduction, and energy-efficient MEP systems. GGD is a knowledgeable engineering firm providing a range of services for academic, municipal, public safety, recreation, government, and housing building projects. Our experience includes conducting existing condition assessments, as well as design for upgrades and replacements, renovations, additions, and new construction projects.

Josiah Quincy Upper School heat pump plant

Mechanical

HVAC, central plants and energy modeling.

Chilled Water Systems
Hydronic Heating
Ice Storage Systems
Central Air Handling Systems
Heat Pump Systems
Energy Recovery Systems
Groundwater Source Systems
Central Power Plants
Computer Simulation Modeling

Electrical

Power, lighting, security and fire alarm.

Site Lighting and Utilities
Building Electrical Systems
Security Systems
Fire Alarm Systems
Emergency Lighting Systems
Lighting Design
High Voltage Distribution Systems
LED Lighting Retrofit Systems
Primary Metering

Plumbing

Building plumbing and low-flow fixtures.

Building Plumbing Systems
Green Low-Flow and Waterless Fixture Implementation
Sewage Pumping Systems

Fire Protection

Sprinkler systems and fire pumps.

Building Fire Protection Systems
Fire Pumps with Onsite Storage Systems

Civil

Site planning, grading and stormwater.

Site Planning and Grading
Storm Water Management Systems
Site Utilities
On-Site Sanitary Waste Disposal Systems

Communications / Technology

Voice, data, AV and building technology.

Telephone Systems
Data Network Switching
Voice & Data Infrastructure Design
Video and Sound Systems
Paging Systems
Clock Systems
Intercom Systems
Equipment Procurement Specifications