Los Angeles County · CA
Property Inspection in Santa Monica, CA
A&A Property Inspections provides home & commercial inspections plus mold, radon, lead, and air-quality testing across Santa Monica and surrounding Los Angeles County neighborhoods including North of Montana, Sunset Park, Ocean Park. Master-certified, licensed, and insured.
Inspecting Homes in Santa Monica
Within 1.5 miles of the Pacific across its entire footprint, Santa Monica is a marine-layer city, and that shapes what an inspection finds. Daytime humidity runs 15-25 points above the inland Westside — especially May through July — so moisture intrusion, HVAC condensate problems, and salt-corroded drain pans (disproportionately common in the 90402 oceanfront zone) all deserve close attention. The older Craftsman bungalows in North of Montana and Sunset Park bring their own checklist: lath-and-plaster walls, single-pane windows, minimal original ventilation, knob-and-tube remnants, and pre-1978 lead paint. Dense modern multifamily along Wilshire adds shared-system and fire-safety considerations. A full inspection covers structure, roof, plumbing, electrical, and HVAC alongside mold, radon, and air-quality testing.
What Our Inspectors Find in Santa Monica
The marine layer is the dominant Santa Monica variable, but it is rarely the whole story. Homes that run AC with the windows closed through early summer cycle high-humidity air onto cold coils, and a slow coil-pan leak can wet a wall cavity in under two weeks. Layer that on century-old framing, aging supply lines, and original electrical, and a single-discipline look misses things. We see frequent post-renovation issues in the Ocean Park bungalow zone where 1920s framing met modern drywall without proper vapor management.
Neighborhoods We Serve in Santa Monica
- North of Montana
- Sunset Park
- Ocean Park
- Wilshire-Montana
- Pico
ZIP codes served: 90401, 90402, 90403, 90404, 90405.
Santa Monica Inspection & Testing Services
- Mold Removal & Remediation near Santa Monica
- Black Mold Removal in Santa Monica
- Mold Inspection & Testing in Santa Monica
- Santa Monica Water Damage Restoration & Mold Prevention
- Radon Testing near Santa Monica
- Lead Testing in Santa Monica
- Santa Monica Home Inspection
- Commercial Property Inspection in Santa Monica
- Mold Investigation in Santa Monica
- Allergy Inspection in Santa Monica
- Indoor Air Quality Testing in Santa Monica
- Moisture Testing near Santa Monica
Our Services
From initial inspection to complete remediation, we handle every step with physician-level care and precision.

Home & Commercial Inspection
A full visual inspection of the structure, roof, and systems — with a full-color, next-day report and clear next steps. Residential and commercial.

Mold, Radon & Lead Testing
Environmental testing for what you can’t see — mold, radon, lead, and indoor air quality — with lab analysis from an independent, accredited laboratory.

Remediation & Restoration
When something turns up, we handle it — mold removal and remediation plus water-damage restoration, with before/after documentation.
Types of Mold We Identify and Remove
We test for 19 mold species and spore categories — the same panel an AIHA-accredited environmental lab reports on every spore-trap. The six most common indoor species are shown first; expand the panel below to see every category we test for.
Black Mold
Stachybotrys chartarum
Often labeled "toxic black mold" — produces mycotoxins linked to respiratory irritation, chronic coughing, and worsened allergies in sensitive individuals. Removal should be done by certified, fully suited professionals.
- Where it's found
- Drywall, ceiling tiles, and wood that has stayed wet for 7+ days — typically after a roof leak, slab-leak, or hidden plumbing failure. Memnoniella, a closely related genus, is grouped with Stachybotrys on most lab reports.
- What it looks like
- Dark green-black, slimy or wet appearance when active.

Aspergillus
Aspergillus spp.
One of the most common indoor molds. Most species are harmless to healthy adults but can trigger asthma, sinus infections, or aspergillosis in immunocompromised individuals.
- Where it's found
- HVAC systems, damp insulation, food, leather, paper. Loves warm humid air — a near-constant concern in humid indoor environments.
- What it looks like
- Yellow, green, brown, or black powdery patches; often fuzzy at the edges.

Penicillium
Penicillium spp.
Common allergy trigger. Continuous exposure can worsen asthma and cause chronic sinus inflammation. Some species produce mycotoxins on water-damaged building materials.
- Where it's found
- Water-damaged carpets, wallpaper, mattresses, and fabric. Frequently appears within 24–48 hours of a leak.
- What it looks like
- Blue-green or grey powdery patches; smells musty.
Cladosporium
Cladosporium spp.
Triggers hay-fever-like symptoms, asthma flares, and skin rashes. Tolerates cool temperatures, so it can grow even in refrigerators and AC drip pans.
- Where it's found
- Bathrooms, kitchens, basements, HVAC drip pans, behind toilets, on shower grout.
- What it looks like
- Olive-green to black; velvety or suede-like texture.

Alternaria
Alternaria alternata
One of the most well-known asthma triggers — outdoor exposure is normal, but indoor growth concentrates spores and can drive severe respiratory reactions in sensitized people. Ulocladium, a visually similar genus, is grouped with Alternaria on most lab reports.
- Where it's found
- Window seals, shower stalls, around tubs, under sinks. Wherever condensation lingers.
- What it looks like
- Dark grey-green or brown; wool-like or velvety.
Chaetomium
Chaetomium globosum
A water-damage indicator species — its presence almost always means a hidden long-term moisture problem. Can produce mycotoxins; linked to allergic and neurological symptoms.
- Where it's found
- Behind drywall and under wood floors that experienced flooding or a sustained leak.
- What it looks like
- Starts white and cottony, then matures to grey, brown, or black.
Not sure what you're looking at? Request a free inspection — we'll test, identify, and remove any species we find.
Frequently Asked Questions
Answers to the questions Santa Monica homeowners ask most often about property inspection, environmental testing, and what to do first when something turns up.
How much does mold inspection and removal cost?
How long does mold remediation take?
Is black mold actually dangerous?
Does homeowners insurance cover mold removal?
What are the health symptoms of mold exposure?
Can I clean up mold myself with bleach?
Do I need to leave my home during mold remediation?
Should I get a mold inspection before buying a home?
What should I do first if my home flooded?
What is clearance testing and do I need it?
How fast can you come out for an inspection?
What happens during a mold inspection?
What is radon and why does it matter in California homes?
What is a safe radon level — and when do I need mitigation?
What is EPA RRP certification and does my contractor need it?
How is lead-based paint tested in a California home?
What does a California home inspection cover?
Do you offer radon, lead, and home inspection in addition to mold services?
What does a commercial property inspection cover?
What is the difference between a mold inspection and a mold investigation?
What is an allergy inspection and how is it different from a mold inspection?
What does indoor air quality testing measure?
How does moisture testing find hidden water in a home?
Don't see your question? Ask us directly — we respond within one business day.
Also Serving Nearby Areas
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