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Termites California | Dampwood Termites

  • Writer: gloryanng8
    gloryanng8
  • Oct 3
  • 4 min read

Termites in California’s Unique Climate


California’s diverse climate and terrain make it a hotspot for several termite species, including subterranean, drywood, and dampwood termites. While subterranean termites cause the most widespread structural damage, dampwood termites pose a unique threat to homes with moisture problems. Many homeowners overlook these pests, mistaking damage for water rot until infestations become severe.

In this blog, we’ll focus on dampwood termites, their risks, and treatment strategies while also reviewing other termite challenges across California. We’ll reference expert sources such as the California Structural Pest Control Board (SPCB), UC IPM, and the California Department of Pesticide Regulation (CDPR). For professional help in Southern California, rely on Attack Pest Control.


1. Overview of Termite Species in California

California is home to three primary termite species:

  • Subterranean termites: The most destructive, living underground and feeding continuously.

  • Drywood termites: Found inside wood framing, furniture, and baseboards.

  • Dampwood termites: Thrive in moisture-rich or decayed wood, common near coastal regions.

The UC IPM confirms that dampwood termites, while less common than subterranean species, remain a threat in areas with leaks or poor ventilation.

Illustration showing the three major termite species in California: subterranean, drywood, and dampwood.

2. What Makes Dampwood Termites Unique?

Unlike subterranean termites that require soil contact, dampwood termites prefer wood saturated with moisture.

  • Habitat: Rotten logs, leaky decks, crawlspaces, or homes with plumbing leaks.

  • Size: Larger than drywood termites, making them easier to spot.

  • Risk: Attracted to water-damaged areas, making prevention critical.

Close-up image of dampwood termites found in rotting wood.

3. Signs of Dampwood Termite Infestation

Identifying dampwood termite activity early can save thousands in repair costs. Look for:

  • Large, smooth galleries inside wood.

  • Wood that feels spongy or weakened.

  • Presence of winged termites (swarmers) after rainfall.

  • Excessive moisture or mold around infested areas.

If you’re unsure whether damage is from termites or water, schedule a termite inspection with our specialists.


4. How Dampwood Termites Differ from Drywood and Subterranean

Feature

Dampwood Termites

Drywood Termites

Subterranean Termites

Habitat

Moist, decayed wood

Dry wood

Underground colonies

Entry

Through water-damaged areas

Direct entry into wood

Mud tubes into structures

Size

Larger

Medium

Small to medium

Risk Factors

Leaks, high humidity

Cracks in wood, exposed timber

Foundation cracks, soil contact

Learn more in our related blog: Why Termite Damage Is Costly to Repair.


5. What Attracts Dampwood Termites in California Homes

Dampwood termites rarely invade dry, well-maintained wood. They are drawn by:

  • Plumbing leaks: Kitchens, bathrooms, and basements.

  • Roof leaks: Water seeping into attics or ceilings.

  • Poor ventilation: Moisture buildup in crawlspaces.

  • Wood-to-soil contact: Deck posts, fences, or siding.

The CDPH warns that moisture problems also increase mold and other health hazards, making repair urgent.

Leaky plumbing pipe under a sink, a common source of dampwood termite infestations.

6. Treatment Options for Dampwood Termites

Unlike drywood termites, dampwood infestations are controlled by addressing the source of moisture first. Treatments include:

  • Moisture control: Fix leaks and improve ventilation.

  • Wood replacement: Remove severely damaged wood.

  • Localized treatments: Insecticides applied to targeted areas.

  • Preventive barriers: Protecting vulnerable wood near soil.

The CDPR regulates which pesticides can be safely used for dampwood termite control.


7. Prevention Strategies: Keeping Dampwood Termites Away

Prevention is more cost-effective than repair. Steps include:

  • Repair leaks immediately.

  • Seal cracks in walls and foundations.

  • Elevate wood away from soil contact.

  • Use treated lumber for decks and outdoor structures.

  • Schedule regular termite inspections.


For more prevention advice, see: Why Termite Damage Isn’t Covered by Insurance.

Homeowner fixing a leaking pipe to prevent dampwood termites.

8. Risks of Ignoring Dampwood Termite Infestations

Ignoring dampwood termites can lead to:

  • Severe structural weakening of beams, decks, and siding.

  • Increased moisture problems and mold growth.

  • Reduced home value during resale.

The SPCB warns that many termite problems are only discovered during real estate transactions, when repair costs can no longer be avoided.


9. Real Estate and Termite Disclosures in California

Termite issues, including dampwood infestations, are legally significant during property sales.

  • Seller disclosures: Required by law to reveal known infestations.

  • Buyer inspections: Often demanded before closing.

  • Expert compliance: Expert DRE Compliance emphasizes full transparency to avoid legal disputes.


10. Why Choose Attack Pest Control in Southern California

At Attack Pest Control, we provide expert solutions for all California termite species, including dampwood termites. Our services include:

With decades of local experience, SPCB licensing, and compliance with CDPR standards, we are the trusted choice for Southern California homeowners.

Attack Pest Control technician inspecting dampwood termite damage in a wooden deck.

Frequently Asked Questions (FAQs)

1. What are dampwood termites?  Dampwood termites are a species that infest moisture-rich or decayed wood, often caused by leaks.

2. Where are dampwood termites found in California?  They are most common in coastal regions and areas with high humidity or poor ventilation.

3. How are dampwood termites different from drywood termites?  Dampwood termites require moisture, while drywood termites infest dry, solid wood.

4. Do dampwood termites cause as much damage as subterranean termites?  They cause significant damage but are less widespread than subterranean termites.

5. How do I prevent dampwood termite infestations?  Fix leaks, ventilate crawlspaces, and keep wood away from soil.

6. Are treatments for dampwood termites safe?  Yes, all treatments are regulated by the CDPR and applied by licensed professionals.

7. Do real estate transactions require termite inspections?  Yes, inspections are often required by lenders, and sellers must disclose infestations.

Don’t Let Dampwood Termites Threaten Your California Home

California homes face unique risks from dampwood termites, especially when leaks and moisture problems go unresolved. By combining inspections, treatments, and prevention, you can safeguard your property from costly damage.

👉 Call Attack Pest Control today at 626-915-1111 or visit www.attack-pestcontrol.com to schedule your inspection, treatment, or repair. Protect your home from all California termite threats with trusted local experts.







 
 
 

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