LibreRadon Mitigation Photo Checklist
A repeatable closeout photo set for residential mitigation systems.
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Here's what it looks like filled out.
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RADON MITIGATION PHOTO CHECKLIST
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Property: 123 Main Street
System: Sub-slab depressurization
Date: August 18, 2026
Technician: Jane Doe
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A. PROPERTY & EXISTING CONDITIONS
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[X] Address / exterior establishing shot (photo 1)
[X] Foundation type — full basement (photo 2)
[X] Mechanical room / basement context (photo 3)
[X] Existing sump — open pit, no cover (photo 4)
[ ] Crawlspace condition — N/A
[X] Slab penetrations and openings (photo 5)
[ ] Existing radon equipment — none
[X] Proposed installation area (photo 6)
[X] Pre-existing damage — slab crack, NE corner (photo 7)
[X] Relevant utilities (photo 8)
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B. SUCTION SYSTEM
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[X] Suction-point location (photo 9)
[X] Finished suction point (photo 10)
[X] Sump cover installed (photo 11)
[X] Sealed sump penetrations (photo 12)
[ ] Crawlspace membrane, seams, sealing — N/A
[X] Diagnostic evidence (photo 13)
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C. PIPING
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[X] Interior pipe routing (photo 14)
[X] Exterior pipe routing (photo 15)
[X] Supports (photo 16)
[X] Penetrations (photo 17)
[X] Sealed joints and transitions (photo 18)
───────────────────────────────────────────────────
D. FAN
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[X] Fan installed — location and mounting (photo 19)
[X] Fan model / nameplate (photo 20)
[X] Fan orientation (photo 21)
[X] Connection on each side (photo 22)
[X] Electrical supply (photo 23)
───────────────────────────────────────────────────
E. MONITOR & LABELS
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[X] Manometer (photo 24)
[X] Startup reading, legible (photo 25)
[X] System label (photo 26)
[X] Circuit identification (photo 27)
[X] Operating instructions left on site (photo 28)
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F. EXHAUST TERMINATION
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[X] Wide shot — termination in context (photo 29)
[X] Termination relative to the roof (photo 30)
[X] Nearby windows and openings (photo 31)
[X] Discharge point (photo 32)
[X] Finished exterior elevation (photo 33)
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G. COMPLETION
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[X] Finished interior (photo 34)
[X] Finished exterior (photo 35)
[X] Work area cleaned up (photo 36)
[X] Final system overview (photo 37)
[ ] Post-mitigation result — pending
Photos attached: 37
Prepared by: Jane Doe
═══════════════════════════════════════════════════How to use this checklist
Make It Yours
Start from these seven stages, then add the shots your state and your company require. Not every line applies to every system — skip the crawlspace items on a slab job.
Shoot As You Install
Work through it on your phone while the work is open. A suction pit can't be photographed once it's sealed. It all works offline in a basement or crawlspace.
Close Out the Job
Add the post-mitigation result when it comes back, then send the homeowner a link or a PDF. The record stays filed under the property.
Capture the condition, not just the component
This list is a documentation aid, not a statement of what any code requires — requirements vary by state and by the standard you work under. The goal of each shot is to record the installed condition with enough context that someone who wasn't there can understand it. That matters most at the discharge: see what to document at the exhaust termination, then how the full set becomes a radon mitigation closeout record.
Frequently Asked Questions
No. It's a practical photo set for documenting an installation. What you're required to record depends on your state and the standards that govern your work — add or remove items to match.
Yes. The suction-system stage includes sump covers, sealed penetrations, and crawlspace membrane seams and sealing. Mark the lines that don't apply as N/A.
Yes. Build it as a photo checklist where an item isn't complete until its photo is taken, and every technician runs the same sequence. See the radon mitigation page for how it fits the whole job.