Roof Replacement

A Master-Crafted Roof Designed to Last a Lifetime.

Rated 4.8 (1200+ Reviews)

A Roof Built to Outlast the Valley Heat—Backed by Precision Diagnostics

Most roofing "estimates" are just a guy on a ladder with a tape measure. They guess at the wood rot, they guess at the flashing, and they hope your roof-mounted AC unit doesn't leak after they leave. When they’re wrong, you pay for it in change orders and mid-project surprises.

At Grandmark Service Company, we don’t guess—we verify. We are the only Roofing  contractor using  Advanced Sub-Surface Diagnostics to see through your existing layers before we even tear off a single shingle.

Roof Installation Near Me

We'll Install The Perfect Roof Your Home

Shingles

Stop leaks where they start. We specialize in shingle roofing that flawlessly accommodates your HVAC and solar setups.

Tile

Don't let hidden vulnerabilities compromise your estate. We execute flawless tile installations using architectural-grade materials engineered to last.

Commercial

From flat roofs to heavy HVAC units, our dual-licensed experts deliver watertight, commercial-grade systems designed to protect your investment.

Metal

Upgrade to permanent luxury. We deliver precision-engineered metal roofing systems that combine striking architectural design.

Precision Installs. Zero Surprises. Hear From Our Clients

Proven Precision Across the Central Valley

Explore our portfolio of diagnostic-backed roofing and HVAC projects. See how we are protecting investments and delivering lifetime value in your neighborhood.

SERVICE AREAS

Proudly Serving the Central Valley & Beyond

Grandmark Brand

North Valley & Capital Region

  • Sacramento

  • Stockton

  • Modesto

Central Valley (Headquarters):

  • Fresno

  • Clovis

  • Visalia

  • Merced

South Valley:

  • Bakersfield

  • Tulare

 

Frequently Asked Questions

How do I know I actually need a full replacement and not just a repair?

Most contractors push for full replacements based on visual guesswork. We do things differently. We use sub-surface diagnostics to evaluate the true condition of your decking and underlayment. If your core structure is failing, a replacement is the only way to protect your home. We provide the visual proof so you know exactly why a new roof is the right investment, eliminating any doubt.

What happens to my solar panels during a roof replacement?
How do you handle my roof-mounted AC unit when installing the new roof?
How long does a complete roof installation take?