We’re always looking out for you.

HSG is one of America’s most trusted providers of building exterior maintenance services. And every day we earn our reputation all over again.

Building trust since 1980.

HSG provides a full array of building exterior maintenance services for properties of all types, from commercial and residential towers to industrial, sports and entertainment facilities.

Property owners and managers across Southern California count on HSG for window cleaning, waterproofing and metal restoration, as well as bird control, glass scratch prevention and removal, high-pressure cleaning and much more. What makes us the industry leader is our unwavering commitment to customer service and worker safety, the integrity of our business practices, and our ability to simplify and streamline even the most complex building maintenance regimen. We do that by leveraging 40 years of experience, custom tailoring and coordinating our services to each property’s unique needs, and making ourselves available to you 24/7.

You have enough on your plate. We’re here to ensure that when it comes to building exterior maintenance, you won’t have a worry in the world.

Executive Team

Hector Garcia

Hector Garcia


Steven Williams

Steven Williams

Senior General Manager

Mayra Cadena

Mayra Cadena

General Manager

liz delgado

Liz Delgado


jose sanchez

Jose Luis Sanchez

Field Operations Manager

Field Supervisors

Oscar Sanchez

Oscar Sanchez

Field Estimator

mario trujillo

Mario Trujillo

Field Supervisor

geronimo sanchez

Geronimo Sanchez

Field Supervisor

Client Services Administrators

judy ozuna

Judy Ozuna

Sr. Client Services Representative

lupe sanchez

Lupe Sanchez

Client Services Representative

Griselda Chagollan

Client Services Representative

Veronica Granillo

Accounting Clerk

Industry Affiliations