Engineering & Construction


New Fuel Farm for Sacramento County's Mather Airport

Installation of new fuel farm at Sacramento County's Mather Airport, including site prep, clearing and grubbing, SWPPPs, oil water separator, electrical work, mechanical, concrete, startup...

HVAC Demolition

Demolition of HVAC system for confidential client

Emergency Generator Upgrade

Emergency Generator Upgrade


Remediation for Caltrans at Half Moon Bay

Pile Driving

Pile driving for Caltrans at the Hayward-San Mateo Bridge

Construction Of ADA Ramp

Construction of ADA ramp at Fort Ross

Construction Of Stairs

Construction of stairs at Fort Ross

Trail Construction

Construction of trail at Fort Ross

Soft Demo And Abatement

Soft demo and abatement for confidential client

Greyhound Underground Tank Fueling System

Provide and install one (1) 15,000 gallon underground storage tank and installation of waste disposal system

Underground Fuel Tank Removal And Aboveground Tank Installation

Caltrans E85 AST installations

Aboveground Storage Tank Installation - Various CHP Sites

GEMS has completed eight (8) successful projects for the California Highway Patrol at different sites. GEMS was contracted to remove underground gasoline storage tanks and…

Lab Pack

Lead Abatement

Lead abatement and demolition for Caltrans

Featured Project

New Fuel Farm for Sacramento County's Mather Airport

Featured Client