Dry ice blasting propels solid carbon dioxide pellets at high velocity to dislodge mold colonies from wood, concrete, and stucco surfaces common in San Luis Rey homes. The process sublimes on contact, leaving no residue and avoiding the moisture that can restart growth in coastal San Diego County structures. Technicians contain the work area with plastic sheeting and negative air machines before blasting begins to keep spores from migrating into living spaces.
Older housing stock near Mission Avenue often features tight crawl spaces and attic framing where mold hides behind insulation or in rafters. Dry ice blasting reaches these spots without sanding or scraping that could damage historic lath and plaster. After treatment the pellets evaporate, so no secondary cleanup of blasting media is required, though HEPA vacuuming of settled dust remains part of every job.
Because the method uses no water, it suits San Luis Rey properties with past plumbing leaks where adding moisture would extend drying time. Operators monitor surface temperatures and pellet flow rates to prevent condensation on cooler concrete slabs. Post-blast verification includes moisture meter readings and visual inspection to confirm no active growth remains before containment is removed.
Technician insight
In San Luis Rey, the thing that catches most people out with dry ice blasting mold is how homes built along Mission Avenue trap humidity in unvented attics during summer marine layers, letting colonies spread across rafters that blasting reaches without wetting the old framing.
Crawl Space Mold After Pipe Leak
A San Luis Rey homeowner noticed musty odors under the kitchen. Inspection found active growth on joists from a slow drain leak. Dry ice blasting cleared the colonies from the wood without introducing water into the already damp space. Follow-up readings showed moisture levels below thresholds and no visible regrowth.
How it works
- 1
Site Assessment
Inspect affected areas, identify mold extent, and map access points in San Luis Rey structures.
- 2
Containment Setup
Seal work zones with plastic barriers and run negative air to prevent spore spread.
- 3
Dry Ice Blasting
Apply CO2 pellets to remove mold from wood, concrete, and stucco without added moisture.
- 4
Final Cleaning and Verification
HEPA vacuum surfaces and check moisture levels before removing containment.
Pricing
Pricing depends on square footage treated, access difficulty, and whether hidden growth is found behind insulation or in crawl spaces.