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Contract Services Group, Inc.(CSG) specializes in providing superior, high-quality, sustainable, and reliable commercial cleaning, window cleaning, and related services to a variety of industries throughout the United States.  We are large enough to serve large accounts yet small enough for our senior executives to be hands-on bringing service excellence to our business partners. 

Locations We Service 

CSG’s unparalleled janitorial and hospitality services are offered throughout the United States. As a growing company, we seek to expand our hospitality, staffing, commercial cleaning, and window-washing services beyond our current market.

All Locations
CSG office locations

Each CSG Office is equipped with a team of managers and recruiters. This is to ensure all work within the region is conducted in accordance with the CSG standard of excellence. 

CSG Offices


Brea Corporate Office

 Address:  480 Capricorn Street

Brea, CA 92821

Phone: 714-582-1834

 Address:  2112 E. 4th St. Suite 100

Santa Ana, CA 92705

Phone: 714-582-1800 Ext. 2010

Santa Rosa

 Address: 3558 Round Barn Blvd. Suite 205

Santa Rosa, CA 95403

Phone: (707) 236-6500

 Address:  10000 Santa Monica Blvd, Los Angeles, CA 90067

Phone: 714-582-1800 Ext. 2040

 Address: 1300 First Street Suite 368
Napa, California 94559

Phone: 714-582-1800 

 Address:  4650 Border Village Rd. Suite 207

San Diego, CA 92173

Phone: 714-582-1800 Ext. 2021


 Address:  702 Civic Center Dr. Suite 110

Oceanside, CA 92054

Phone: 714-582-1800 Ext. 2030

 Address: 73-625 CA Hwy 111, Suite F

Rancho Mirage, CA 92270

Phone: 714-582-1845

 Address: 1590 Oakland Road Suite B209

San Jose, CA 95131

Phone: 714-582-1800 

 Address: 6012 North 27th Avenue Phoenix Arizona 85017

Phone: 657-554-5585


Why Choose CSG

CSG is proud to follow all local, state, and federal laws. Our proposals are always priced with the local minimum wage and vacation accrual laws in mind. CSG does not cut any corners and we do not subcontract any of our work.


Our clients in all regions are guaranteed a direct line to CSG’s executive team. CSG works closely with our clients to ensure their expectations are not just met- but exceeded.


Locations Throughout the US

Area Manager

Continuous Improvement 

Dedicated Team

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