Finding bed bugs in a San Diego apartment is stressful. The useful next steps are evidence, a written notice, and the actual Civil Code sections, not a guess about who “must pay” in every case. This page is not legal advice.
Who is responsible for treatment: landlords or tenants?
California Civil Code 1941.1 lists conditions that affect habitability, including freedom from vermin. That is the general housing duty. Bed bugs also have their own chapter.
Under Civil Code 1954.602(a), added with AB 551, a landlord shall not show, rent, or lease to a prospective tenant any vacant dwelling unit that the landlord knows has a current bed bug infestation. That is why a pre-lease look at the mattress seams is worth the time: you are checking a unit that the landlord is not allowed to turn over if they already know it is infested.
Civil Code 1954.603 requires a written bed bug information notice to prospective tenants (and, on the statute’s original schedule, to other tenants). It covers identification, biology, and what to do if you suspect an infestation.
Civil Code 1954.605 requires the landlord to notify tenants of inspected units, in writing, within two business days of receiving the pest control operator’s findings. For confirmed infestations in common areas, all tenants get that notice.
If bed bugs show up after you move in, source arguments get messy. Hitchhiking is real, and proving who brought them is often impossible. Many owners treat the building as a whole because the insects move through walls. That is a practical choice, not a Pest Pros legal ruling. Professional treatment is usually required for an established infestation. Cost is covered in bed bug treatment cost in San Diego. Pest Pros does not eradicate bed bugs and does not represent you in a landlord dispute.
How to inspect a new apartment for bed bugs before you sign the lease
Do this before you sign and before you move belongings in. Bring a flashlight. A magnifier helps.
Start in the bedroom. Pull back bedding. Check mattress and box-spring seams, tufts, piping, the frame, the headboard, and furniture next to the bed. Look for live insects (UC IPM: adults about 1/5 inch, flattened, oval, and rusty red), dark fecal spots, and shed skins. Then check baseboards, outlet plates, and any upholstered furniture. If the unit is empty, check walls, floors, and curtain folds.
Do not move your furniture or boxes in until you have looked. Photograph anything suspicious with the date and tell the landlord in writing before you commit.
What to do immediately if you find bed bugs in your unit
Stay calm enough to document. Rash spraying and moving items are how one room becomes the whole building.
Photograph everything. Live bugs, spots, skins, and any bites, with date, time, and location.
Notify the landlord in writing. Email plus a saved copy, certified mail, or hand delivery with a copy. Describe what you found, attach photos, and ask for inspection and treatment. The written date is what 1954.605 later measures against once an operator reports findings.
Do not run a campaign of over-the-counter sprays. UC IPM: over-the-counter total-release aerosol foggers are ineffective for bed bug control and potentially harmful to residents, so they are not recommended. While you wait: wash what can take heat, dry on high, bag clean items, vacuum, and dump the bag outside. Do not move infested furniture to another room or out of the building uncontained.
Do not throw the mattress out on the curb as a first move. Disposal can spread the problem in the hallway and is often unnecessary.
How to prepare if a licensed company is scheduled
Once the landlord has hired a licensed operator, follow that company’s written prep list. Heat is common in San Diego, but it is not a Pest Pros method and it is not the only legal option. Prep usually means decluttering, laundering what can take high heat, bagging clean textiles, pulling furniture off walls, and removing pets, plants, and heat-sensitive items if the method is heat. The operator’s sheet outranks this overview.
UC IPM’s laundry note is hot water at 120°F and a hot dryer. Use that only on items the fabric can survive.
Frequently asked questions
Who is responsible for bed bug treatment in a California rental, the landlord or the tenant?
Landlords must maintain habitable premises (Civil Code 1941.1) and may not show or rent a vacant unit they know is currently infested (1954.602). They must give the 1954.603 information notice and, after an operator inspects, send 1954.605 findings within two business days. Report in writing and keep a copy. Who pays for a given job can still depend on the lease and the facts. That is a legal question, not something a matcher can decide.
Should I treat bed bugs myself in a rented apartment?
No. UC IPM: over-the-counter total-release aerosol foggers are ineffective and potentially harmful, so they are not recommended. Report it in writing so a licensed operator can inspect.
What should I do the moment I find bed bugs?
Stop moving belongings between rooms. Photograph what you found. Notify the landlord in writing. Leave the mattress in place until the operator says otherwise.
When to call us
If you need a licensed Branch 2 company to inspect after the landlord is notified, call (858) 400-6561 to get matched with a licensed local pro. Pest Pros San Diego does not treat the unit, does not use heat as a network method, and does not give legal advice. For building-wide planning, landlords can also read bed bug plans for San Diego property managers.