Drone roof inspections cost ~$200-$400 vs $300-$600 for a
boots-on-roof inspection. They're great for:
- Initial damage screening
- Insurance claim documentation
- Steep-pitch inspections too dangerous to walk
- High-resolution photo records
But they consistently miss four classes of defect.
What drones catch well
- Visible shingle damage — missing, lifted, curling
- Hail-impact patterns from above
- Tile cracks visible from oblique angles
- Flashing visible from above — chimney, vent, skylight
- Algae + staining
- Penetration sealant condition
- Gutter alignment + content
What drones miss
- Underlayment condition. Drone can't see under shingles. A
rotting underlayment with intact shingles passes drone
inspection but fails on first big monsoon storm.
- Decking integrity. Drone can't tell if decking is rotting
beneath. Soft spots, sagging detected only by walking the
roof + feeling underfoot.
- Step flashing condition. Step flashing is mostly hidden
under shingles. Drone sees only the visible upper flap.
Failed step flashing has visible upper flaps but compromised
under-shingle integrity.
- Attic-side issues. Discolored insulation, water staining
on rafters, visible daylight at eaves — all require attic
inspection. Drone gets nothing of this.
When drone-only is OK
- Initial screening — confirm visible damage before claiming
- Newer roofs (under 10 years) where structural integrity
is unlikely to be compromised
- Steep tile roofs where walking would crack tiles
- Insurance claim documentation — adjusters increasingly
accept drone photo packages
When you NEED boots-on-roof
- Pre-purchase inspection of any roof over 10 years old
- Post-storm damage assessment — water intrusion path
- Underlayment evaluation before re-roof bid
- Decking condition assessment
- Pre-warranty claim — needs full attic inspection
Best practice: combined inspection
Get a drone scan ($200-$400) PLUS a 30-minute boots-on-roof +
attic walk ($200-$300). Total ~$400-$700 for a comprehensive
inspection that catches everything.
Most drone-only "free inspections" are storm-chaser leads —
treat with skepticism.