Roof Repair — We Find the Real Problem. We Fix It. Or You Don’t Pay.
Most roofers patch the symptom. We video-document the actual cause — then fix it right the first time. GAF Certified. BBB A+. Serving Fresno, Bakersfield, Sacramento, Modesto & Visalia.
Roof repair shouldn’t wait
for your budget.
$0 down · 6.99% APR · 5-year financing · no early payoff penalties. Most homeowners qualify same day — no hard credit pull.
$2,500 repair
$50/month · 60 months · 6.99% APR
$5,000 repair
$99/month · 60 months · 6.99% APR
Root Cause Diagnosis, Not Band-Aid Fixes
We trace every leak to its actual source. A water stain on your ceiling may originate 6 feet away. We find where it starts — not just where it ends up.
Written Scope of Work Before We Begin
You know exactly what we’re fixing, why, and how much it costs. No hidden charges after the job is done.
Full Video Documentation of the Problem
Our technicians record the exact damage — cracked flashing, compromised underlayment, lifted shingles, failed sealant — so you see what we see. You keep the video. No other roofer in California does this as standard.
Post-Repair Video Confirmation
After the repair is complete, we document the finished work on video. Proof that the job was done right — for your records, your insurer, and your peace of mind.
We Fix the Problem. Or You Don’t Pay. That’s Not Marketing — That’s Our Policy.
Missing, cracked, curling, or wind-lifted shingles. Improper installation. Storm damage. We match your existing shingles and restore the weatherproof seal.
Our Leak Free Guarantee – Zero Risk
If we diagnose your 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 residential and commercial roof repairs across all 5 California markets.
Here’s what most California homeowners experience before calling us:
Because we don’t patch symptoms. We fix causes. When you repair the right thing the right way, the problem stays fixed.
We Show You Exactly What’s Wrong — On Video — Before We Touch Your Roof
No guesswork. No mystery invoices. No surprise “we found something else.
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
Every Type of Roof Repair — Residential & Commercial
Residential Roof repair
Roof Leak Repair
The most common call we get. Active leaks, intermittent drips, or water stains you can’t trace — we find the source and seal it permanently.
Shingle Roof Repair
Missing, cracked, curling, or wind-lifted shingles. Improper installation. Storm damage. We match your existing shingles and restore the weatherproof seal.
Tile Roof Repair
Cracked, slipped, or broken clay and concrete tiles. Broken mortar ridges. Underlayment exposure. Tile repair is delicate work — our crews are specifically trained on tile systems common throughout California’s Central Valley and Sacramento region.
Flat & Low-Slope Roof Repair
TPO, PVC, EPDM, modified bitumen, and built-up systems. We repair seams, penetrations, and membrane failures on commercial buildings of all sizes.
Fascia & Soffit Repair
Dry rot in fascia boards or soffit panels left untreated allows moisture, pests, and heat infiltration. We replace rotted sections and seal the perimeter.
Flat Roof Repair
Ponding water, blisters, seam failures, and membrane punctures on foam, torch-down, and single-ply systems.
Flashing Repair
Failed flashing around chimneys, skylights, vents, and valleys is responsible for the majority of roof leaks. We re-seal, re-bed, and re-flash to manufacturer specs.
Gutter System Repair
Sagging, disconnected, or improperly pitched gutters cause water to pool against your fascia and foundation. We repair or realign the system.
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
Everything California homeowners ask before repairing their roof — answered honestly, with over 29 years of experiences to back it up.
Your roof is leaking right now. Every day costs more.
The average homeowner waits 3–4 weeks before calling a roofer. In that time, a $600 repair can become a $4,000 problem.
We fix the problem or you don’t pay — guaranteed on every repair.