About Us

Our Profile:

Sigma Corporation has experience and expertise in the field of Design and Construction. We are a General Contracting Company specializing in Home Addition, Remodeling and New Home Construction. We have been established since 1989 with our Headquarters in Fremont, CA, USA. See our presentation to learn more.


We provide turn-key services in home addition, remodeling and new construction.

Commercial & Industrial:

Our staff of experienced and well trained subcontractors have completed a varietry of undertakings which qualify us for different types of projects from Remodeling and Addition to New Construction. Sigma Corporation responds efficiently to client's needs and is very sensitive to their requirements. We espouse the industry best practices in Project Management from Budgeting to Project Timeline to Quality Deliverables.

From Planning to Implementation

Our list of testimonials is available for your reference. (Residential)

We look forward to working with you to share our design concepts, experience and expertise.

For a free consultation please call (510) 668-1817 or e-mail for an appointment. Contact information

Fully Insured with Liability Insurance.

California License no. 737281: (California License Board)

  • Class 'B' General Building Contractor
  • Class 'C10' General Electrical
  • Class 'HIC' Home Improvement Contractor


Copyright 2013, Sigma Corporation.