ERMI & HERTSMI-2 Dust Testing in Sunnyvale, CA
qPCR dust analysis, collected correctly and interpreted honestly — for households in Sunnyvale and across Santa Clara County, held to the sensitized-occupant standard and independently verified.
Why this matters in Sunnyvale
The service is standard; the building stock is not. What follows is the Sunnyvale-specific picture, plus how households across Santa Clara County get matched to providers held to the sensitized-occupant standard.
South Bay with wet winters and dry summers. 1950s–60s ranch stock on slabs and crawl spaces amid rapid ADU-era renovation.
Where the work starts in Sunnyvale
- Vented crawl-space humidity, insulation contact, and subfloor moisture gradients
- Slab-edge readings and under-slab supply runs at bathrooms and kitchen
- Fog-side and north-facing elevations for chronic condensation loading
- Remodel-era transitions where new finishes were layered over old assemblies
- Shower and tub assemblies past their service life
What's included
- Collection planning: composite versus room-specific sampling matched to the question
- Proper collection sites: undisturbed dust reservoirs, not floors or fresh surfaces
- Accredited-lab qPCR analysis of water-damage and outdoor marker species
- Species-level interpretation against building findings, not just the composite score
- Baseline documentation for valid post-remediation comparison
- A single hallway air cassette sold as a building screen
- Scores interpreted without any building context
- No documentation of collection sites and method
A defensible answer to 'is this building a problem' with species-level detail that directs the inspection — and a baseline your final clearance will be measured against.
Common questions
How does matching work for ermi & hertsmi-2 dust testing in Sunnyvale?
Tell us about your building and situation through the intake form. We match you with providers serving Santa Clara County who have been vetted on containment discipline, fine-particle competence, written-scope transparency, and willingness to be independently verified. Matching is free for households.
Why does local building knowledge matter in Sunnyvale?
South Bay with wet winters and dry summers. 1950s–60s ranch stock on slabs and crawl spaces amid rapid ADU-era renovation. Providers who work these exact failure modes find sources faster and scope work more accurately than generalists applying a national template.
What standard is the work held to?
The sensitized-occupant standard: written scopes, verified negative-pressure containment where remediation is involved, no fogging or biocide-and-leave treatments, chemical disclosure, and third-party verification as the release condition for final payment.
Get matched for ermi & hertsmi-2 dust testing in Sunnyvale
Tell us about your house and your situation. We match you with contractors vetted on containment discipline, fine-particle competence, and willingness to be independently verified — in your area, at no cost to you.
Get matched with a vetted contractorINDEPENDENT · NO COST TO HOMEOWNERS · NATIONWIDE