Sunnyvale · Santa Clara County
Mold Inspection in Sunnyvale, CA
5 findings that come up most often in Sunnyvale homes — assessed by a former builder who knows what this housing stock hides.
Sunnyvale's Eichler concentration means a meaningful share of the city's housing needs an inspector who understands post-and-beam construction. A conventional checklist will miss the systems that actually cost money in these homes.
That shapes what a mold inspection in Sunnyvale actually needs to look for. Eichler in-slab radiant heating is the finding that comes up most often here, followed closely by low-slope roof membranes. Both are specific to how Sunnyvale was built and where it sits — not items from a generic checklist.
Major Eichler tracts, extensive conventional post-war tract housing, and substantial recent attached development near the Caltrain corridor and downtown.
Local Findings
What comes up most in Sunnyvale
These are the findings this inspection is actually looking for here — drawn from how Sunnyvale was built and where it sits, not a generic list.
Eichler in-slab radiant heating
Original copper tubing embedded in the slab is effectively unrepairable once it leaks, and replacement means a new heating system entirely. I check supply and return temperatures and look for warm spots and slab-edge efflorescence.
Low-slope roof membranes
Eichler and flat-roof homes depend entirely on membrane condition. I assess membrane age, seams, drainage and any ponding, since a failure here reaches the interior quickly.
Rotted post bases at grade
Exposed structural posts meeting concrete at grade is a recurring Eichler weak point. These are structural members and their condition matters.
Single-pane glazing and condensation
Extensive original glass drives condensation, which drives fungal growth on adjacent finishes. It is a comfort, energy and moisture issue at once.
Original plumbing in conventional tracts
Galvanised supply and cast-iron waste in the city's non-Eichler housing are at the age where failure is common. Functional flow and drainage testing tells you more than pipe age.
Sunnyvale housing stock that matters here
Age and construction era change what this inspection prioritises.
1950s–70s conventional tracts
Galvanised supply piping, cast-iron waste at end of life, undersized electrical services, and original aluminium windows are the standard findings.
2000s–present condos & townhomes
Focus on unit-boundary systems, balcony and deck waterproofing, and moisture crossing from shared assemblies.
How the inspection works
- 1
Pre-Inspection Survey
We discuss the property's history — past leaks, water damage, and any odors or symptoms you've noticed.
- 2
On-Site Inspection
A thorough visual, thermal, and moisture assessment of every accessible area of the property.
- 3
Moisture Source Tracing
Wherever the thermal scan or moisture meter flags an elevated reading, we trace it back to find where the water is actually coming from.
- 4
Clear Report
You receive a plain-English report with findings, photos, and practical next steps — delivered the same day.
What you get
- Find hidden moisture before it becomes a major repair
- Protect your family from mold-related health issues
- Documented findings you can use in real estate negotiations
- No conflict of interest — we don't sell remediation
Starting at $279 for a standard visual, thermal and moisture assessment. Larger properties are quoted before we book. Call for a fast, transparent quote.
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