Roofs Built to Last.
Homes Built to Trust.
Southern California's trusted roofing team — protecting families, homes, and one of your largest investments with craftsmanship that holds up for decades.
Residential & Commercial Roofing · Los Angeles County · Orange County · San Fernando Valley · Inland Empire.
- Licensed California Roofing Contractor
- Fully Licensed, Bonded & Insured
- Free Roof Inspections
- Emergency Roof Repairs
- Residential & Commercial Roofing
- Premium Manufacturer Materials
- 4.9★Google RatingVerified homeowner reviews
- LicensedBonded & InsuredCSLB License #0000000
- CertifiedManufacturer InstallerGAF · Owens Corning · CertainTeed
- 0% APRFinancing AvailableOn approved credit
- 24/7Emergency ServiceSame-day tarping & response
- SoCalLocally OwnedLA · OC · Inland Empire
Specifics that protect your home and your budget.
A roof is one of the largest investments you'll make in your home. Here is exactly what we do to reduce your risk on every project.
Honest inspections with photo documentation
Every inspection includes photos and drone footage of what we find — so you see your roof the way we see it, before any decisions are made.
Detailed written estimates, no hidden surprises
Line-item pricing for materials, labor, tear-off, disposal, and permits. What you sign is what you pay — no change-order games.
A dedicated project manager on every job
Your Roofing Consultant guides you through sales and planning. Once construction begins, your Project Manager becomes your daily point of contact through final walkthrough.
Daily cleanup that protects your property
Tarped landscaping, covered A/C units, and magnetic nail sweeps every afternoon. Your yard is back in order before our crew leaves.
Manufacturer-certified roofing systems
We install as certified contractors for the manufacturers we recommend, which qualifies your roof for extended material warranties.
Installed to California building codes
Underlayment, flashing, ventilation, and fastening patterns done to Title 24 and local code — verified before we call the job done.
Clear communication before, during, and after
Scheduling confirmations, daily progress updates, and a follow-up call after the warranty paperwork is delivered. No radio silence.
Your trusted guide — from first call to project kickoff.
Your first conversation is with a Roofing Consultant whose only job is to listen, inspect, and educate — never to pressure you into a sale.
Once your project is approved, you're personally introduced to the dedicated Project Manager who runs the crew from start to finish.
- Answers your questions honestly
No pressure. Just straightforward recommendations based on your home's needs.
- Builds a detailed estimate
Clear pricing, material options, timelines, and expectations.
- Helps you choose the right solution
Repair or replacement — we explain the pros and cons so you can make an informed decision.
- Introduces your dedicated Project Manager
Once you're ready to move forward, you'll meet the experienced professional responsible for supervising your roofing project from beginning to completion.
Experienced oversight — first shingle to final cleanup.
Every project gets a dedicated Project Manager on-site — running the crew, protecting your property, and keeping you informed every day until your warranty paperwork is in hand.
- Oversees production every day
Your Project Manager is on-site to coordinate the crew, confirm the scope, and keep the installation moving on schedule.
- Coordinates the roofing crew
They assign tasks, manage materials, and make sure every installer knows the plan before the first shingle is lifted.
- Maintains quality standards
From underlayment and flashing to final fastening patterns, they verify the work matches manufacturer specs and California code.
- Communicates with you throughout construction
You'll receive daily progress updates and know exactly when the crew arrives, what was completed, and what's next.
- Performs the final walkthrough
They walk the roof and property with you, address any concerns, and make sure every detail is completed before sign-off.
- Ensures the property is left clean
Magnetic nail sweeps, debris removal, and a tidy jobsite are part of the standard — not an afterthought.
Full-service roofing for Southern California homes and businesses.
Complete residential systems — asphalt shingle, tile, and metal — engineered for our climate and homeowners who plan to stay.
TPO, single-ply, and modified bitumen systems for property managers, HOAs, and business owners.
Targeted repairs that address the actual cause — not just a patch over the symptom.
Full tear-off with premium underlayment, upgraded ventilation, and factory-certified installation.
Active leak? We tarp, stabilize, and diagnose the source so water damage stops before it spreads.
Free residential inspections with photo documentation and a written report.
Wind, hail, and heavy rain damage documented and repaired to restore the integrity of your roof.
We document damage, meet your adjuster on site, and manage the claim paperwork end-to-end.
Clay and concrete tile installation, repair, and re-lay — installed by crews trained specifically for tile.
Standing-seam and metal shingle systems built to outlast the home and reduce cooling costs.
Single-ply, coatings, and modified bitumen for low-slope residential and commercial roofs.
Annual tune-ups that extend the life of your roof and preserve manufacturer warranties.
Need emergency roof repair?
Active leak, storm damage, or wind-lifted shingles? Our emergency team responds fast to stabilize your roof and stop further damage — day or night, weekends included.
- Temporary leak protection
- Emergency storm damage response
- Emergency tarping installed same-day
- Fast on-site inspections
- Photo & drone insurance documentation
- Priority scheduling for permanent repair
Active leak? Storm damage? Call now — most calls returned within one business hour, immediate dispatch for after-hours emergencies.
Call Emergency Line NowLearn about emergency service
Real people. Local crews.
Homeowners hire people, not logos. Your Roofing Consultant handles planning, your Project Manager runs construction, and our in-house crews complete the work — all in matching Grand Valley Roofing uniforms.
Certified. Accredited. Standing behind our work.
Our certifications qualify your roof for extended manufacturer warranties and verify our crews are trained to spec.
Manufacturer logos shown by name until brand assets are approved for use.
See the difference professional roofing makes.
A closer look at recent projects — from a weathered, failing roof to a properly installed system built to protect the home for decades.
Before
After
BeforeAfterBefore
AfterReal roofs. Real crews. Real results.
A sampling of recent installations, repairs, and replacements from across Southern California. Filter by project type to see the work most relevant to you.
Homeowners send their neighbors.
A few recent notes from Southern California homeowners. See the full wall of reviews on our dedicated reviews page.
"They inspected our roof after a hailstorm, worked directly with our insurance, and had a beautiful new roof on the house in three days. Cleanest job site I've ever seen."
"We got three estimates. Grand Valley wasn't the cheapest — they were the most honest. Told us we could get another 5 years out of our existing roof. Who does that?"
"Handled the tile replacement on our HOA clubhouse. On time, on budget, and every homeowner on the property commented on how professional the crew was."
A process built so you always know what's next.
Refined over thousands of Southern California roofs — designed to protect your home, your schedule, and your budget from the first call to the final walkthrough.
- 01
Call or request an estimate
Reach us by phone or the form on this page. We'll confirm your address and the reason for the visit.
- 02
Free roof inspection
We book a time that works for you — typically within a few business days, sooner for active leaks.
- 03
Detailed written estimate
A line-item estimate with material options, timelines, and warranty information — usually within 24–48 hours.
- 04
Approve your timeline
Once you're comfortable, we lock in a start date, pull required permits, and confirm the material order.
- 05
Professional installation
Our crew arrives on time, protects your property, and installs your roof to manufacturer and California code standards.
- 06
Final walkthrough & cleanup
We walk the roof and property with you, magnet-sweep the yard, remove all debris, and deliver your warranty paperwork.
How to know your roof needs attention.
Most roof failures give warning signs long before they become emergencies. Here's what to look for from the ground — and when to call for a free professional inspection.
Missing shingles
Bare patches or shingles visible in the yard usually mean wind damage — water can enter within a single storm.
Active leaks
Even small leaks compound quickly. The stain you see is usually smaller than the damage above it.
Interior water stains
Yellow or brown ceiling and wall stains signal ongoing moisture — inspect before mold sets in.
Granule loss
Sandy grit in gutters and downspouts is a sign your shingles are nearing the end of their protective life.
Sagging roofline
A visibly dipping ridge or slope points to trapped moisture, decking failure, or structural issues — inspect quickly.
Damaged flashing
Loose or rusted flashing around chimneys, vents, and walls is the #1 source of chronic leaks — often repairable without full replacement.
Storm damage
Wind-lifted shingles, dented flashing, and impact marks after a storm should be documented within days for insurance.
Moss or algae growth
Green or black streaks trap moisture against your roof and shorten its life. Treatable when caught early.
Poor ventilation
Hot attics, ice damming, and rippled shingles often trace back to intake/exhaust ventilation that isn't balanced.
We walk you through the insurance claim — start to finish.
Filing a storm damage claim on your own is stressful, and small mistakes cost real money. We've walked hundreds of homeowners through the process and coordinate directly with your adjuster.
- 1Roof inspection
We inspect the entire roof and document every point of storm-related damage — wind, hail, and water intrusion.
- 2Photo documentation
Ground photos, drone footage, and close-up shots go into a complete claim file for your adjuster.
- 3Meet your adjuster on site
We walk the roof with your insurance adjuster so nothing important is missed or misclassified.
- 4Claim support
We provide scope-of-work documents matched to policy language and submit supplements if items are overlooked.
- 5Roof replacement or repair
Once approved, we schedule the work, coordinate materials, and complete the project to code and manufacturer spec.
- 6Final inspection & documentation
We walk the finished roof with you, provide warranty paperwork, and send final documentation to your insurer.
Serving Greater LA, Orange County & the Inland Empire.
Locally owned and operated across Southern California. Our crews live in the same neighborhoods they work in.
- Los Angeles County
- Orange County
- Inland Empire
- Antelope Valley
Straight answers to the questions homeowners actually ask.
Don't see your question? Call us or send a message — we'll give you a straight answer, not a sales pitch.
How much does a new roof cost?
Cost depends on square footage, pitch, material, tear-off, decking condition, and code upgrades. For most Southern California homes, a full asphalt shingle re-roof ranges from the mid-teens into the low $30,000s, with tile and metal running higher. We provide a firm, itemized written estimate after inspection — no ballpark pressure tactics.
How long does roof replacement take?
Most residential re-roofs are completed in 1–3 days depending on size, pitch, and material. Tile and metal projects may take longer. You'll receive a firm timeline in writing before any work begins.
Can you help with insurance claims?
Yes. We document damage with photos and drone footage, meet your adjuster on site, and manage the claim paperwork end-to-end. You should never navigate a storm claim alone.
Are you licensed and insured?
Fully licensed as a California roofing contractor (CSLB License #0000000), bonded, and carrying general liability and workers' comp. We provide certificates before any work begins.
What warranties do you offer?
Every installation includes our 10-year workmanship warranty in addition to the manufacturer's material warranty — often 30–50 years on premium systems, extendable when installed by a certified contractor.
Ready for an honest look at your roof?
Free inspection. Written estimate. No pressure to decide on the spot — ever.
Get your free roof inspection & estimate.
No pressure. No obligation. We'll inspect your roof, explain exactly what we find, answer your questions, and provide an honest recommendation.