(916) 923-8519Free estimate
Overhead view of a GM Roofing roofer in a company shirt and tool belt working at the edge of a shingle roof
Our story

Started on the roof at nine years old.

Giovanni Mondragon grew up on job sites with his dad. Today he runs his own licensed roofing company across the Sacramento Valley.

It started with tagging along with his dad on roofing jobs. Over the years, he learned the trade one piece at a time and kept getting more involved.

Ever since he was a kid, he knew he wanted to be a contractor. Back then he didn't even know there were different kinds. He'd watch contractors pull up in big trucks and think, that's going to be me one day.

By 15 he was picking up side jobs of his own. He got good at the work, and found out he was just as good at the other half of the job: talking with homeowners, explaining what their roof needs and making the whole process easy.

When it came time to get his contractor's license, he passed both the trade exam and the Law and Business exam on the first try. Today he holds California C-39 roofing license #1144977 and runs his own company across the Sacramento Valley. The name is his own, too: GM stands for Giovanni Mondragon.

  1. Age 9

    Starts tagging along with his dad on roofing jobs and learns the trade one piece at a time.

  2. Age 15

    Picks up his first side jobs on his own, and keeps getting better at the work.

  3. Licensed

    Passes the CSLB trade exam and the Law and Business exam, both on the first try.

  4. Today

    Runs GM Roofing (the GM is Giovanni Mondragon), a family-owned roofing company serving the Sacramento Valley.

GM Roofing roofer installing a CertainTeed ridge vent on a new shingle roof
“I don't really look at this as a job. I'm living the dream I had as a kid.”
Giovanni Mondragon, owner
His advice to anyone starting out

“You'll get as far as you're willing to push yourself. Nothing is impossible unless you convince yourself it is.”

What customers mention most

Easy totalk to.

Ask Giovanni's customers what they appreciated and you'll hear the same thing: how easy he is to communicate with. He explains what's going on with your roof in plain language, answers your questions and tells you what happens next.

That's the job as much as the roofing is. You should never have to wonder where your project stands.

“He came the next day to give us his bid, was prepared and able to answer all our questions. His communication was excellent and transparent throughout the process.”

Kara C., on Yelp
Request a free estimate
Our approach

How we work.

  1. 01

    Easy to reach, easy to talk to

    You'll know what's happening with your roof and what comes next, explained in plain language.

  2. 02

    We'll say when a repair is enough

    If a repair solves the problem, that's what we recommend instead of a new roof.

  3. 03

    We fix what's under the shingles

    Soft decking and worn flashing get repaired before the new roof goes on.

  4. 04

    Your property stays protected

    We protect landscaping, driveways and gutters, and clean up before we leave.

The process

Four steps, in writing.

  1. 01

    Request an inspection

    Tell us what's going on or ask for a general roof check. We'll find a time that works.

  2. 02

    We walk the roof

    We get up on the roof and document its actual condition instead of guessing from the ground.

  3. 03

    You get it in writing

    A written estimate that explains what's needed and why. Take your time deciding.

  4. 04

    The work gets done

    We schedule the job, complete it and leave the site the way we found it.

Services

What we do.

Sacramento Valley

Have a roof question?Start with a free estimate.

Tell us what you're seeing. We'll look at the roof in person and put the scope and price in writing, with no obligation.

Request a free estimate (916) 923-8519