X-Ray Roof Repair & Leak Detection
Roofers blame the AC tech. Solar companies blame the roofer. At Grandmark, we handle all three. We use X-Ray diagnostics to pinpoint and permanently seal leaks around solar mounts and HVAC curbs.
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Book Your X-Ray Inspection
Stop the leak before it spreads. Schedule your diagnostic today for a precise, honest quote.
Stopping Leaks Where Solar & AC Meet Your Roof
1,119+ Google Reviews
4.8

90% of roof leaks happen at the equipment mounts. We specialize in waterproofing solar standoffs and AC units, ensuring your energy upgrades don't destroy your home's defense.
Most contractors fix what they think is the problem. At Grandmark Roofing, we fix what we see. Using advanced X-Ray thermal imaging, we look beneath your shingles to spot hidden moisture pockets and structural rot that the naked eye misses.
Whether it’s a storm-damaged shingle or a silent leak rotting your decking, our data-backed approach ensures we fix it right the first time—saving you
Why Choose X-Ray Roof Repair?
Pinpoint Accuracy: We don't guess. Our thermal X-Ray tech finds the exact source of the leak, even if it's hidden under the shingles.
Save Money: Stop paying for "band-aid" fixes. We identify the root cause so you only pay to fix it once.
Extend Roof Life: By catching "invisible" moisture pockets early, we prevent rot and add years to your current roof.
Most contractors just patch the visible hole and hope for the best. At Grandmark, we use advanced thermal imaging to track the water's path from entry to exit. We reveal hidden moisture pockets and structural rot that the naked eye misses, ensuring we fix the entire problem—not just the symptom.
5 Signs Your Roof Needs Immediate Attention
You don't always need water dripping on your head to know you have a problem. Often, the damage starts long before the leak breaks through to your living room. If you spot any of these warning signs, schedule an X-Ray inspection immediately:
Granules in the Gutters: Finding sandy granules in your downspouts means your shingles are deteriorating and losing their protective coating.
Curling or Buckling Shingles: Heat from the Fresno and Sacramento sun can cause older shingles to warp, breaking the seal that keeps water out.
Brown Ceiling Stains: A faint discoloration on your ceiling is often the tip of the iceberg. By the time you see it, water has likely soaked your insulation and decking.
Higher Energy Bills: If your AC is working overtime, your roof ventilation might be compromised, or wet insulation has lost its R-value (ability to resist heat).
Daylight in the Attic: Go into your attic during the day. If you can see pinholes of light coming through the roof boards, water can get in just as easily.
The X-Ray Diagnostic Process
1. Thermal Roof Scan: We scan your entire roof to detect temperature differences caused by trapped moisture.
2. Visual Confirmation: We verify the thermal data with a hands-on physical inspection.
3. Surgical Repair Plan: We create a targeted repair plan that only removes the damaged area.
4. Post-Repair Verification: We scan again after the work is done to prove the leak is gone.
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See Why Neighbors Trust Grandmark
With 1,119+ 5-Star Reviews, we are the Central Valley's most trusted roofing team. We don't pressure you—we show you the X-Ray facts so you can make the right decision for your home.

Frequently Asked Questions
How does "X-Ray" leak detection actually work?
Water retains a different temperature than dry wood. Our thermal cameras detect these "cold spots" hidden under your shingles, pinpointing the exact source of the leak instantly. We see what the naked eye misses, so we don't have to guess.
Do I need a full roof replacement or just a repair?
Many contractors push for a full replacement because they can't find the specific leak. With X-Ray diagnostics, we can prove exactly which parts of your roof are healthy and which are wet. If we can save your roof with a surgical repair, we will.
Will you provide proof of the damage?
Absolutely. You won't just take our word for it. We provide a digital report with thermal "Before" photos showing the hidden moisture and "After" photos proving the leak is gone. You see exactly what you are paying for.
Does X-Ray technology cost more?
It actually saves you money. By finding the problem correctly the first time, we avoid the costly "trial and error" patching that most contractors do. Plus, catching a leak early prevents expensive structural rot later.
Can this help with my Insurance Claim?
Yes. Insurance adjusters love data. Our thermal images provide irrefutable proof of storm damage or water intrusion, which often helps get claims approved faster and for the correct amount.

