California’s trusted roofing contractor
Grandmark serves homeowners and business owners across 5 California markets. GAF Certified, BBB A+, 25+ years. We video-document every job — repair, replacement, or inspection.
Every roofing service California homeowners and businesses need
From a single leak to a full commercial replacement — Grandmark handles every roofing system across all 5 markets. We fix the right thing, document it on video, and stand behind every job.
Roof Repair
We find the real cause — not just the visible symptom. Video-documented, guaranteed.
Roof Replacement
Done in 1–3 days. Up to 50-year GAF warranty. $0 down financing available.
roof inspection
Free, video-documented inspection with written report. No obligation.
Emergency roofing
24/7 emergency response across all 5 markets. Active leaks treated immediately.
Commercial roofing
TPO, flat roof, metal systems. OSHA compliant. Zero business downtime.
Roof financing
$0 down, 4.99% APR 12-year special. Most homeowners qualify same day.
Why California homeowners choose Grandmark
3%
GAF Master Elite
Fewer than 3% of US roofers qualify — means up to 50-year system warranties.
4.8★
1,200+ reviews
Verified Google reviews across all 5 California markets.
25+
Years in California
El Niño seasons, 115°F summers — we know California roofing systems
$0
Down financing
4.99% APR 12-year special — most homeowners qualify same day
We fix the problem. Or you don’t pay. That’s not marketing — that’s our policy.
If we diagnose your roof and fix it, and the same problem comes back — we make it right at no charge. We stand behind every repair we complete. Not because we have to. Because we want you to call us back when it’s time for a full replacement.
— Grandmark Service Company · Applies to all residential and commercial repairs across all 5 California markets
$10,000–$15,000 roof. $0 today.
4.99% interest · 12-year special financing. Most homeowners qualify same day — no hard credit pull.
$10,000 replacement
$106/month · 144 months · 4.99% APR
$15,000 replacement
$133/month · 144 months · 4.99% APR
OUR GUARANTEE
If we diagnose your commercial roof repair and fix it, and the same problem comes back — we make it right at no charge. We stand behind every repair we complete. Not because we have to. Because we want you to call us back when it’s time for a full replacement.
— Grandmark Roofing
This guarantee applies to all commercial roof repairs across all 5 California markets — TPO, flat roof, metal, and every system we service.
We don’t patch symptoms. We fix causes. When you repair the right thing the right way, the problem stays fixed.
Grandmark did an amazing job fixing our Roof and Duct work we needed done. Greatly appreciate them and recommend them 10/10 ! Thank you for everything making our home look great
Adrian Espinoza
Fresno, CA
They not only did everything they said they would do in the estimate, they went above and beyond with the repairs on the roof and came out on NEW YEARS DAY to do the job!
I would highly recommend GRAND MARK ROOFING to anyone looking for any type of roofing needs!
Steve larson
Sacramento, CA
David provided me with an estimate & video of tile roof issue. Although Grandmark Service Co. cannot do a small section repair that I need David did a good job of explaining the situation.
Nancy Silva
Bakersfield, CA
Serving all 5 California markets
Licensed roofing crews dispatched from 5 offices. Same-day service available in most areas.
Fresno
Sacramento
Bakersfield
Stanislaus
Visalia
FAQ
Frequently asked questions
Honest answers to what California homeowners ask most before calling us.
Ready to fix your roof the right way?
Free same-day inspections across all 5 California markets. We fix it or you don’t pay.