The short version
Most rodent jobs in San Francisco cost a few hundred dollars up to about $1,500. That usually covers inspection, trapping and sealing. Attic cleanup is extra.
- Most rodent jobs in San Francisco cost a few hundred dollars to about $1,500.
- Inspections usually cost $75–$250.
- Sealing the gaps is what keeps rodents out.
- Attic cleanup is usually priced separately.
- Compare what each quote seals, not just the total.
Anyone in San Francisco dealing with mice or rats, or hoping to keep them out.
What to look for
Winters around San Francisco are mild, so rodents stay active all year. Seeing one in daylight usually means there are more. Rodents are mostly unseen. You hear them at night and find droppings by morning. A mouse fits through a gap the size of a dime.
- 1Fresh gnaw marks on door corners or garage weatherstripping.
- 2Live sighting, especially during the day.
- 3Rodent hair or droppings inside HVAC ducts.
- 4Chewed vehicle wiring or nesting under the hood.
- 5Gnaw marks on food packaging, wood trim, or wiring.
- 6A musky or ammonia-like smell in closed rooms.
Why it’s worth acting soon
- Mice breed fast, every few weeks.
- Droppings and urine contaminate food and insulation.
- Gnawed wiring can be a fire risk.
- Nests and odor get harder to clean the longer they stay.
- Deer mice can carry hantavirus.
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Estimate rodent control cost in San Francisco
Adjust for your situation to see a ballpark range.
Estimated range
A rough guide only. Your quote depends on your house and what the inspection finds.
Treatment options and typical costs
Inspection and Entry-Point Mapping
$75–$250
The inspection identifies the species and how bad it is. Droppings, grease trails, and nest material in San Francisco attics and crawlspaces show how long they have been there.
- Time
- 60–90 minutes
- Best for
- Every job; nothing else works without it
Sealing and Rodent-Proofing
$200–$1,500, more for large or complex homes
Rodent-proofing means closing every gap a rodent can use with metal. Around San Francisco, that usually means copper or stainless mesh in pipe gaps, sealed foundation vents, and fresh door sweeps.
- Time
- 2–6 hours, sometimes a full day
- Best for
- Stopping re-entry for good; the lasting fix
Follow-Up Monitoring
$50–$150 per visit, or included in a plan
Fresh droppings look dark and soft; old ones look gray. That tells a pro whether activity is current.
- Time
- 20–40 minutes per visit
- Best for
- Confirming the house stays clear after treatment
Snap-Trap Program
$150–$400 per visit
Trapping works best alongside sealing. Alone, it only lowers the count. After sealing, the last traps confirm the house is clear.
- Time
- 30–60 minutes per visit, 2–4 visits
- Best for
- Active indoor infestations; fast results you can see
Prices are typical published ranges. Ask what’s included before you compare quotes.
Clutter gives mice cover. Keeping stored fabric in lidded bins and off the floor takes away the nesting spots they like best.What rodent control costs in San Francisco.
- A typical home in San Francisco is worth around $1,300k. Sealing the gaps protects that, and it's the part that lasts. Basement homes need utility gaps and window wells sealed. - Snap-Trap Program: $150–$400 per visit - Follow-Up Monitoring: $50–$150 per visit, or included in a plan - Sealing and Rodent-Proofing: $200–$1,500, more for large or complex homes - Inspection and Entry-Point Mapping: $75–$250
Which rodents live around San Francisco.
They can carry hantavirus, so clean up their droppings carefully. Deer mice live around San Francisco too, mostly near open land and in sheds or cabins. They climb, and come in high through attic vents and branches. Roof rats are common around San Francisco too. They burrow along foundations and enter low. Norway rats are the other usual suspect. They're small, curious and breed quickly. House mice are the most common rodent in San Francisco homes.
This is what a proper seal looks like: metal mesh fastened with screws and sealed at the edges. Foam or caulk on its own gets chewed through.When they move in.
Small problems grow fast. Spring is breeding season. Listen for them in the attic after dark. Roof rats are active all year. Activity still rises in fall and winter, even here.
How they get into houses here.
Trim branches back from the roof. For roof rats, check soffit vents, gable vents and eaves. Homes from San Francisco out to Oakland and San Mateo share the same weak spots, so the checklist below works across the area. Window wells need covers or screens. Look at the dryer vent flap. Check where pipes and cables enter. Rodents use gaps around utility lines, dryer vents and window wells. Plenty of homes in San Francisco have basements.
A year of rodents in San Francisco.
- Fall: activity rises as rodents settle in for winter. Check the attic and garage. - Summer: with highs around 67°F in San Francisco, rodents look for water. Fix drips and leaks. - Spring: breeding season. Act on any sign quickly. - Winter: with lows near 46°F in San Francisco, check the attic, garage and pantry for droppings.
Mice or rats?
- Droppings: mouse droppings are rice-sized. Rat droppings are two or three times bigger. - Rub marks: rats leave greasy smudges along walls and beams. - Behavior: mice are curious about new traps. Rats avoid them for days. - Sounds: mice sound light and quick. Rats sound heavier. - Holes: mice chew dime-sized holes. Rats chew holes closer to quarter-sized.
Sealing small gaps yourself.
- Steel wool or copper mesh: pack it into small gaps first. - Check your work: daylight through a gap means it isn’t sealed. - Expanding foam: fine on top of mesh, useless on its own. - Door sweeps: close the gap under garage and exterior doors. - Hardware cloth: use quarter-inch mesh over vents and larger holes. - Sealant or mortar: cover the mesh so it stays put.
Cleaning up droppings safely.
- Air the room out for 30 minutes first. - Wash your gloved hands, then your hands. - Don’t sweep or vacuum droppings dry. It stirs up dust. - Wipe up with paper towels and bag them. - Spray droppings with a bleach solution, then wait five minutes. - Wear rubber or plastic gloves.
What happens at an inspection.
They check the foundation, vents, rooflines and utility gaps. The inspector walks the outside first. Most inspections take about an hour. Photos help. You should come away with a list of entry points. Inside, they check the kitchen, garage and attic.
Rodents in the car.
Park in a closed garage when you can. Mice and rats nest in engine bays and chew wiring. Clear birdseed and pet food from the garage. Check the air filter box for nesting.
Bird feeders and rodents.
Use a seed tray and sweep up spills. Spilled seed feeds mice and rats. Store seed in a metal can with a tight lid. If rodents show up, bring feeders in at night.
Questions to ask before you sign.
- Where are they getting in? - Will you use poison inside? (Ask them not to.) - Is cleanup included, or extra? - What happens if they come back? - How many trap visits are included? - Which gaps will you seal, and with what?
Ways to keep the cost down.
- Clear clutter so gaps are easy to reach. - Compare what each quote seals, not just the price. - Act early, before rodents spread to the attic. - Store food and pet food in sealed bins.
Rodents by the numbers.
Around San Francisco, ask any provider to show you the entry points and the plan before you compare numbers. Around San Francisco, those three findings — species, entry points, and scale — are what a quote should be built on, not a regional average. Around San Francisco, what actually matters is a walk-through: where the droppings are, how the rodents are getting in, and how large the colony is. National surveys set rough expectations but cannot diagnose one house.
What affects the price
- Mice versus rats; rats take longer and cost more.
- Sewer line inspection if rats are entering underground.
- Whether insulation must be removed and replaced.
- Materials used for sealing: mesh, sheet metal, mortar.
- Number of trapping visits needed to reach zero.
- Attic access and how much insulation is contaminated.
- Age of the home and condition of the foundation.
- Crawlspace or slab; crawlspaces add labor.
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What's your biggest concern about rodent control costs?
When to call for help
Call if you hear them in the attic or walls. Droppings in several rooms are another sign. So is a dead-rodent smell. Call right away if you see rats. They take a longer, more careful approach. Attic cleanup is hard to do safely without training.
What you can do yourself
Seal small gaps with steel wool and sealant. Rooflines, vents and attics are harder. That's where a pro's sealing work pays off. Start tonight with snap traps along the walls. Bait them with peanut butter. Store food in sealed bins.
Rodents in San Francisco
In denser parts of San Francisco, rats travel along alleys, fences and utility lines, so neighbors often share the problem. A typical home in San Francisco is worth around $1,300k, and chewed wiring or soiled insulation can get expensive. With about 24 inches of rain a year, San Francisco gives rodents plenty of water, so food and shelter are what you control. Winter lows average around 46°F in San Francisco, so there's little pressure to move indoors, and activity stays steady.
Local research
Rodents in San Francisco, CA: what the public record shows
Before you compare quotes, it helps to know which rodents actually live in California, when they are busiest around San Francisco, and what the state figures look like. Everything below links to the agency or university page it came from.
Rodenticide restriction
Bromadiolone, brodifacoum, difethialone, diphacinone, chlorophacinone and warfarin cannot be applied in most areas; bromethalin, cholecalciferol and zinc phosphide remain.
UC IPMGap a rat can squeeze under a door
Roof rats travel 300+ feet for food.
UC IPMRodent species recorded in California
- House mouse (Mus musculus) — Enters at 1/4 inch; 5-10 litters per year; eats about 200 small meals a night.
- Norway rat (Rattus norvegicus) — Burrowing rat of basements, sewers and ground floors; tail shorter than head plus body.
- Roof rat (Rattus rattus) — Climber of attics and trees in warm and coastal regions; tail longer than head plus body.
- Deer mouse (Peromyscus maniculatus) — Primary U.S. hantavirus carrier; lives throughout Washington and the interior West.
When rodents are busiest around San Francisco
Rats active year-round; check periodically.
California's rodenticide law pushes work toward trapping and exclusion.
Rules that apply in California
For context, nationally
- 1/4 inch (the width of a pencil) — Smallest gap a mouse can enter. CDC
- 890; 35% fatal; 94% west of the Mississippi — Hantavirus cases reported since 1993 (through 2023). CDC
Sources: CDC National Notifiable Diseases Surveillance System; Pest Notes: Rats; CDC; Pest Notes: House Mouse; Hantavirus. Figures are quoted as the source prints them. How we check our sources
Simple ways to keep rodents away
- Trim tree branches at least six feet from the roof.
- Cap chimneys and repair damaged roof vents.
- Walk the exterior each season looking for fresh gnawing.
- Take bird feeders down or use catch trays for spilled seed.
- Keep ivy, shrubs, and firewood away from the foundation.
- Install brush or rubber door sweeps on exterior doors.
After sealing, a few monitors or unset traps left along the walls tell you whether anything is still getting in before you hear it again.Did you know?
A mouse's heart beats around 500 times a minute.
Around San Francisco, rodents make up about 40 percent of all mammal species on Earth.
Questions people ask
How much does attic cleanup cost?
Full insulation replacement costs much more. Get it itemized. It depends on the size and how much insulation is affected. Light cleanup can be a few hundred dollars.
What does a rodent inspection cost?
Some companies credit it toward the job if you go ahead. It's worth asking. Usually $75–$250.
Does home size change the price?
Bigger houses have more walls and roofline to seal. Attics and crawl spaces add time too. Yes.
How much does rodent control cost in San Francisco?
Most full jobs in San Francisco run a few hundred to about $1,500. Attic cleanup costs extra.
Will rodents leave on their own?
Rarely. Once they've found food, water and a warm nest, they stay.
What is rodent-proofing and why does it cost so much?
A mouse fits through a dime-sized gap, so it's slow work. It's also the part that keeps them out. It means sealing every gap with metal mesh and sealant.
What does a rodent inspection involve?
Inside, they look at the kitchen, attic, garage and under sinks. You should get a list of entry points. The inspector checks the outside walls, roofline, vents and utility gaps.
Are rodent problems in U.S. homes getting worse?
homes reported signs in the previous year, calculated from the U.S. Census Bureau's 2023 American Housing Survey (AHS) rounded counts, almost identical to 2019. Before work starts in San Francisco, ask how many visits are included and what happens if the rodents come back. Not noticeably, on the national numbers. Rodent contact has stayed steady: roughly 11.8% of occupied U.S.
How many homes have a full rodent infestation?
homeowners reported ever having multiple rodents in the 2022 NPMA/Harris Poll, which still argues for acting early, before one visitor becomes several. Around San Francisco, the next step is usually an inspection that finds where the rodents are getting in. 14% of U.S.
Are rodents a problem in San Francisco?
They're common here, as almost everywhere. Roof rats are also common in the area.
Nearby cities
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Sources (11)
The facts in this article come from the public sources listed above. Every home is different, so ask the company you talk to about pricing and what’s included. Published by Rodent Exterminator · Updated September 11, 2026 · How we write these guides