How do I know if I have bed bugs?
Look for the bugs and what they leave behind. Adults are flat, oval and reddish-brown, about 1/5 to 1/4 inch long; young ones are tiny and pale. They don't fly. California's required tenant notice lists these signs:
- Small red to reddish-brown fecal spots on mattresses, box springs, bed frames, linens or walls
- Shed skins, sticky white eggs or empty eggshells
- A sweet odor in very heavy infestations
- Itchy red bites, often on arms and legs, though some people never react
How did bed bugs get into my home?
They hitchhike. UC IPM says people bring bed bugs home on luggage, clothes, bedding and furniture, often after hotel stays. Used mattresses and furniture are high-risk, and apartments, dorms and shelters are most likely to become infested. Bed bugs have made a comeback worldwide, partly because of travel and widespread insecticide resistance.
Bed bugs aren't known to spread disease, according to UC IPM, but scratching bites can lead to infections, and the stress is real.
Heat or chemical: which bed bug treatment is better?
Most effective programs combine methods. Heat treats whole rooms with no chemical residue. UC IPM says commercial heat should reach at least 140°F for two hours or 130°F for three hours (the minimum lethal temperature is 113°F), and that heat providers in California must be licensed and bonded by the Structural Pest Control Board. Heat can damage some belongings, so ask what to remove.
Insecticides reach cracks and voids and can keep working after the visit, but UC IPM warns that some bed bug populations resist pyrethroids. Dusts like silica gel or diatomaceous earth placed in wall voids and other out-of-the-way spots can give long-term control. Steam and freezing (32°F or below for several days) are other options for furniture and belongings.
Can I get rid of bed bugs myself?
You can knock down a small problem, but UC IPM says confirmed infestations should be handled by trained professionals. These steps help either way:
- Vacuum mattress seams, bed frames and baseboards, and repeat often
- Wash bedding and clothes in hot water (120°F) and dry on the hottest setting; dry items need at least 10 to 15 minutes in a hot dryer
- Put mattresses and box springs in bed bug encasements
- Cut clutter around the bed
- Skip foggers and bug bombs; UC IPM says they don't work on bed bugs and can harm your health
How should I prepare for bed bug treatment?
Follow the company's written prep list exactly. California's bed bug law notes that tenants often need to cooperate by reducing clutter and washing clothes, and that poor cooperation can undermine treatment. Ask whether to bag laundry, empty dressers or move furniture away from walls, and ask before moving belongings to another room. Plan for follow-up inspections to confirm the bugs are gone.
What are a renter's rights with bed bugs in California?
California's bed bug law (Civil Code §§1954.600 to 1954.605) sets clear rules. A landlord may not show, rent or lease a vacant unit it knows has a current bed bug infestation. Landlords must give tenants a written bed bug information notice. A pest control operator can inspect units and follow up in surrounding units, tenants must cooperate, and the landlord must share the findings in writing within two business days.
Landlords also can't retaliate against a tenant for reporting a suspected bed bug infestation in good faith (Civil Code §1942.5). The California Attorney General lists pest control for bed bugs as part of a landlord's duty to keep a home habitable.
| Method | How it works | Typical cost per room |
|---|---|---|
| Heat | Hot air raises room temperature high enough to kill all stages | $100 to $500 |
| Chemical | Sprays, dusts and residual products in cracks and voids | $200 to $600 |
| Steam | Steam applied to mattresses, furniture and carpet edges | $250 to $1,000 |
| Freeze | Very cold treatment applied to infested spots | $400 to $800 |
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Frequently asked questions
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Do I have to tell my landlord about bed bugs?
Sources
- Pest Notes: Bed Bugs (Publication 7454) — UC Statewide IPM Program
- AB 551 (2016), chaptered: Civil Code §§1954.600–1954.605 (bed bugs) and §1942.5 (retaliation) — California Legislature (leginfo.ca.gov)
- Know Your Rights as a California Tenant: Your Right to a Safe and Well-Maintained Home — California Department of Justice, Office of the Attorney General
- Bed Bug Exterminator Cost (updated November 22, 2022) — Fixr
- How Much Does Pest Control Cost? (2026 Pricing), updated 03/12/2026 — This Old House
- How Much Does an Exterminator Cost? (updated June 2, 2023) — Bob Vila