About JEM General Builders
About Jorge Martinez, general contractor
Our Story
Meet Jorge Martinez, the founder of JEM General Builders.
Jorge moved to the United States in 1987 with a dream of building a brighter future for himself and his mother, who emigrated from El Salvador. Determined to succeed, he studied at San Francisco State University and immersed himself in his career, achieving early success as a carpenter with the San Francisco Local 22 Carpenter Union.
Since 2008, Jorge has focused his expertise on kitchen and bathroom remodels, transforming spaces into dream homes for his clients in the San Francisco Bay Area. His skills as a general contractor extend well beyond interiors, as he also handles everything from foundations to exterior painting.
Jorge currently resides in Oakland, California, with his three wonderful children. His family is his greatest inspiration, with one child proudly serving in the Navy and the others thriving as responsible citizens. Every project at JEM reflects Jorge's dedication and commitment to ensuring client satisfaction.
Why Homeowners Choose JEM
Quality Craftsmanship
We take pride in every detail, from the first nail to the final coat of paint.
Transparent Pricing
No hidden fees. We offer match-bid pricing against qualified local contractors.
On-Time Delivery
We respect your time and your home. Projects are completed on schedule.
Licensed & Insured
Fully licensed general contractor in California. Your investment is protected.
Local Expertise
Over 20 years serving Oakland and the greater Bay Area community.
Certified Installer
Certified Andersen Window Installer — quality you can count on.
Our Services
Andersen Certified Contractor
At JEM General Builders, we value craftsmanship, and that's why we are an Andersen Certified Contractor, CA License # 1089221.
Business Name: Jem General Builder
Visit AndersenBest of 2026 General Contractor for Grand Lake Oakland, CA
We thank our customers for acknowledging our hard work and dedication.
Work With Us