Call Now

South Bay

Home & Mold Inspection in Sunnyvale

One of the largest concentrations of Eichler homes anywhere — plus extensive post-war tracts.

Sunnyvale, Santa Clara County

Inspecting Sunnyvale homes

Sunnyvale contains some of the largest Eichler tracts ever built, and inspecting them well requires knowing how they were designed rather than treating them as ordinary houses. Post-and-beam framing, low-slope roofs, in-slab radiant heat and floor-to-ceiling glass all behave differently from conventional construction.

The rest of the city is largely conventional 1950s to 70s tract housing, plus a large volume of newer condominium and townhome development. Those have their own predictable profile, driven mostly by original systems reaching end of life.

Local note

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.

Sunnyvale housing stock

Major Eichler tracts, extensive conventional post-war tract housing, and substantial recent attached development near the Caltrain corridor and downtown.

Eichler tracts

Concentrated in several large neighbourhoods. The critical items are low-slope roof membrane condition, in-slab radiant heating, exposed post bases at grade, original glazing, and electrical panels in atrium or exterior locations.

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.

What I look for in Sunnyvale

These findings come up disproportionately often in Sunnyvale, so they get specific attention rather than a generic checklist entry.

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 homes and what I find in them

The housing types you'll see around Sunnyvale, and the conditions that come up most often when I inspect them.

Mold contamination inside HVAC ductwork and air handling equipment — Sunnyvale, CA
Mold contamination inside HVAC ductwork and air handling equipment
Inspector inspecting interior staircase treads, railings and safety — Sunnyvale, CA
Inspector inspecting interior staircase treads, railings and safety
Moisture meter reading elevated levels in drywall — Sunnyvale, CA
Moisture meter reading elevated levels in drywall
Condensation on single-pane window glass — Sunnyvale, CA
Condensation on single-pane window glass
Mold growth beneath carpet and padding from prolonged moisture — Sunnyvale, CA
Mold growth beneath carpet and padding from prolonged moisture
Inspector assessing exterior grading and landscape drainage around a home — Sunnyvale, CA
Inspector assessing exterior grading and landscape drainage around a home

Neighborhoods I serve in Sunnyvale

Coverage across Sunnyvale and the surrounding area — if your neighborhood isn't listed, call and ask.

Ponderosa ParkFairbraeCherry ChaseBirdlandOrtega ParkHeritage DistrictLakewoodRaynor Park

Sunnyvale inspection questions

Ready to book your inspection?

Same-day appointments and same-day reports. Get honest, documented answers from a certified inspector who actually built homes.

Call (628) 230-0357