Termite Inspection and Treatment Choices for Bay Area Homes

Termites rarely appear in a dramatic way. Homeowners often notice a small pile of pellets near a window, a few wings on a sill, or a hollow sound in trim. Then the questions hit fast. Is it drywood termites or subterranean termites. Is tenting needed. What repairs are part of the plan, and what repairs belong under a separate scope.

In the San Francisco Bay Area, termites are a steady reality. Older wood framing, crawl spaces, and moisture near foundations give termites opportunities. A practical approach starts with a thorough inspection, then matches the treatment method to the termite type and the home layout.

Start with termite signs and where they appear

Collect basic evidence before the inspection.

• Pellets that look like fine grains, often below window trim or baseboards

• Wings near windows, doors, or light fixtures, often after a warm day

• Mud tubes on foundations or crawl space walls

• Blistered paint or a hollow sound in trim when tapped

• Tight doors or windows in one corner where framing shifted

Take photos and note dates. Swarm events tend to cluster seasonally, and the timing helps with identification.

Know the difference between drywood and subterranean termites

Treatment choices depend on the termite type.

Drywood termites

• Live inside the wood they eat

• Often show pellets near kick out holes

• Common in attic framing, window trim, fascia, and older exposed wood

Subterranean termites

• Live in soil and reach wood through tubes

• Need moisture and soil contact or an easy path to moisture

• Often show tubes in crawl spaces, at slab edges, and around penetrations

An inspection should identify the likely type and the evidence that supports that call.

WDO inspections, what they cover and what they miss

In many Bay Area real estate transactions, WDO inspections show up as a standard step. A WDO inspection is a structured look for wood destroying organisms and related conditions. It is not a guarantee that every hidden area was inspected.

Ask the inspector to describe access limits.

• Areas blocked by stored items in garages and crawl spaces

• Inaccessible attic zones behind tight framing

• Areas behind finished surfaces that were not opened

• Exterior zones hidden by dense landscaping

A clear report separates observed evidence from areas that were not visible.

Moisture and access, the hidden drivers

Termites follow moisture and entry paths. Before treatment, look for the conditions that feed the problem.

• Leaks at hose bibs and exterior spigots

• Downspouts that dump water at the foundation

• Soil piled against siding or stucco weep screeds

• Dense shrubs touching siding and holding moisture

• Wood debris stored on the ground near the house

Fixing these conditions supports any treatment plan. It also reduces the chance of repeat activity.

Treatment options, match them to evidence and layout

Termite treatment is not one method. It is a set of tools. Ask the provider to explain why the selected method fits your case.

Common approaches include:

• Whole structure tenting for drywood termites when activity appears in multiple zones or inaccessible areas

• Localized treatments when evidence is limited to specific pieces of wood

• Soil or perimeter treatments for subterranean termite activity, often tied to crawl space and foundation zones

• Preventive steps paired with repairs, such as sealing entry points and addressing moisture conditions

Ask where the treatment will take place, what areas are excluded, and what access is required.

Tenting prep, focus on logistics and household safety

If tenting is part of the plan, preparation drives results and reduces stress. Ask for a written prep checklist and a day by day timeline.

Key prep topics:

• Food and medicine handling rules and what gets removed

• Pet relocation plan and fish tank handling

• Bagging steps for items in kitchens and pantries

• Access steps for attics, crawl spaces, and garages

• Re entry steps and ventilation after treatment

Also ask how follow up confirmation will be handled and what documentation you receive.

Localized treatment prep, avoid false confidence

Localized treatments fit certain situations, yet the method relies on correct targeting. Ask how the provider will locate galleries and confirm activity.

• What evidence supports a localized approach

• What areas will be drilled or accessed

• How the treatment zone will be marked in the report

• What follow up looks like and how success is evaluated

Also ask about patching expectations after drilling. Repairs often fall outside the pest scope and belong in a carpentry scope.

Repairs versus treatment, keep scopes separate

Homeowners often want one company to handle both termite work and repairs. That is possible in some cases, yet you still need two scopes.

• Treatment scope, inspection zones, method, access, documentation

• Repair scope, wood replacement list, framing details, finish work boundaries

A separated scope helps you avoid confusion about what the treatment includes. It also helps you compare bids without mixing labor types.

How to compare termite providers without getting lost

Use a consistent set of questions.

What termite type is suspected and what evidence supports it

What areas were inspected and what areas were not visible

What treatment method is proposed and why it fits the layout

What prep work is required from you

What documentation you receive, maps, photos, written notes

What follow up timing is planned

For a neutral service list that supports bid comparisons, the Horizon Termite Control report page lists termite inspection, termite treatment, termite tenting, termite prevention, termite removal, WDO inspections, and coverage for drywood, subterranean, and swarming termites, which helps you align proposals around the same categories.

Bay Area building details that affect termite risk

Certain construction features show up often.

• Crawl spaces with limited ventilation and damp soil

• Older decks and porches with wood posts near grade

• Stucco homes with weep screeds buried under soil or mulch

• Additions with mixed framing details at tie in points

• Window trim and fascia that stayed damp from fog or irrigation overspray

During inspection, ask the provider to point out these features and note which ones apply to your house.

Prevention steps that fit real life

Prevention is not a one time task. It is basic home care.

• Keep soil and mulch below siding and trim edges

• Fix leaks fast, especially near foundations and crawl spaces

• Route downspouts away from the house

• Store firewood off the ground and away from walls

• Trim plants away from siding to improve drying

If you live near the coast, fog and salt air keep surfaces damp longer. If you live inland, irrigation overspray and heat cycles stress wood and paint, which creates entry points.

What to check after treatment

After any treatment, keep a simple checklist.

• Save the report and any diagrams in a home file

• Note the date and the zones treated

• Watch the original evidence locations for changes

• Track moisture fixes and drainage changes you completed

• Schedule rechecks based on the provider’s recommended interval

Termite work feels manageable when you start with identification and access limits, keep repairs separate from treatment, and compare providers using the same scope categories. That structure fits Bay Area homes where hidden conditions are common and clear documentation protects your decisions.