3G Roofing Co.
Three Generations of Roofing One Standard Done Right.
3G Tres Generaciones Roofing Co. is a family-owned, licensed roofing contractor serving Los Angeles and all of Southern California. From shingle and tile to flat and metal roofing, we bring 45+ years of hands-on expertise to every roof we touch — backed by the integrity of a family name we’ve spent three generations building.
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Licensed & Insured
California State License #1059685.
3 Generations
A true family business, founded on inherited craft.
45+ Years Experience
Hands-on expertise in every roofing system.
Open 24 Hours
Emergency roofing help, day or night.
Welcome / Intro
A Family Roofing Company Built on Craft, Not Shortcuts
Comprehensive Roof Services
Durable, Stylish, and Energy Efficient Roofing Options
Roof Maintenance Plans
Extend Your Roof’s Lifespan Efficiently
Our services
Complete Roofing Services for Southern California
Every roofing system. One trusted family.
01
Shingle Roofing
Classic asphalt shingle installation and replacement — durable, affordable protection with clean, precise workmanship on every course.
02
Tile Roofing
03
Flat Roofing
04
Metal Roofing
05
Roof Repairs & Leaks
06
24/7 Emergency Service
We're dedicated to assisting you with all your roofing needs, providing expert solutions.
Your Trusted Roofing Experts
Why Homeowners Trust Tres Generaciones
Generational Expertise
Skills refined since the 1970s and passed down father to son to grandson. We've seen — and solved — every roofing problem Southern California can throw at a roof.
Integrity in Every Estimate
We built this company on honesty. You'll get a straight answer about whether you need a repair or a replacement — never an upsell you don't need.
Quality That Lasts
We treat every roof like it's protecting our own family. Premium materials, meticulous installation, and workmanship we're proud to put our name on.
Local & Accountable
We live and work in Los Angeles. Our reputation is our livelihood, and we protect it on every single job — big or small.
Simple Process
How It Works
Reach Out
Call us or request a free
estimate online. We
answer 24 hours a day.
Free Inspection
Honest Quote
Expert Installation
What Our Neighbors Say
Read what our satisfied clients have to say about our exceptional roofing services.
Karla Alvarez
David and his team were friendly, courteous, professional,great work,time appropriate with communication with customer and getting the City of Torrance Inspector on screen right away with no wait time and the team cleaned the work area very well.
Not pushy sales tactics and easy to talk to good at listening to the needs of the customer.and the price was fare compared to others without losing the quality of there work.
Ed Grinnell
David and his crew did a fabulous job fixing my roof. They searched high and low for just the right tiles, and they weren’t satisfied until it was perfect. I highly recommend Tres Generaciones Roofing Co.
Melissa Hunt Trikiis
Service Area
Service Area
Proudly Serving Los Angeles & All of Southern California — From our home base in South L.A., we
serve homeowners and businesses across Los Angeles County and the greater Southern California region.
Your Roof Deserves Three Generations of Expertise.
Free estimates. Honest answers. Quality that lasts. Call today or request your quote online.