If you hear scratching above the ceiling at night or find droppings in the attic, you need someone to find and seal rodent entry points, and someone to clean up what the rodents left behind. In Livermore, Brentwood, San Ramon and Walnut Creek, AtticareUSA does both as one project, because rodent activity in an attic is two problems at once: how the rodents are getting in, and what they left in the insulation. It is not just a pest problem. It is a contamination problem, and a fix that handles only one side leaves the other in place.
At a Glance
- Call pest control first if rodents are active: a licensed pest control company removes live rodents so they are not sealed inside or left to undo the cleanup.
- Find and seal the entry points: we close the gaps with wire mesh, polyurethane foam and cement as needed, with no traps and no poison.
- Clean out the contamination: droppings, nests and contaminated insulation come out before anything new goes in.
- Install new insulation last: a fresh layer over droppings leaves the odors and contamination in place.
- Book the free inspection: we report what we find and email a transparent proposal, and the rodent proofing carries a written 1-year warranty that transfers if you sell.
Who Should I Call When I Hear Scratching or Find Droppings?
Short answer: If rodents are still living in the attic, call a licensed pest control company to remove them. Then call AtticareUSA to inspect the attic, seal the entry points, clean up the contamination and replace the insulation. If the activity has already stopped, you can start with our free inspection.
This is where most homeowners get stuck, because three kinds of companies seem to fit: pest control companies, rodent-proofing specialists and attic contractors. Each one does a different part of the work.
- A licensed pest control company traps or removes the rodents that are inside now. We do not trap, bait, poison or remove live rodents.
- Our team handles everything after that. We find and seal the gaps, vacuum out droppings, nests and contaminated insulation, sanitize the work area when needed, and install new insulation.
The order matters because each step protects the one after it. Seal the openings while rodents are still inside, and they are trapped in the attic. Clean the attic and leave the gaps open, and new rodents can move into a clean space. Add insulation before cleanup, and you bury the droppings and odor under a fresh layer.
The job is not complete until the path back in has been addressed, and the mess is cleaned up.
Trapping vs. Exclusion: Why Sealing Is the Durable Fix
Short answer: Trapping removes the rodents that are already inside. Exclusion closes the openings they used, so the next rodents have a harder time getting in. AtticareUSA’s rodent proofing is a one-time, subscription-free exclusion job, not a recurring service contract.
Traps and bait deal with the animals, not the gaps. If a gap at the roofline or a loose vent screen stays open, the attic is still reachable. Trapping alone does not address how rodents got in.
Public guidance points the same way. The EPA recommends sealing holes and gaps inside and outside the home to keep rodents from getting in [1].
Sealing entry points helps stop the next rodents from getting in. The durable fix is exclusion, not repeat visits. Our rodent proofing is pesticide-free, so no bait stations or poisons are left in your attic. The barrier is physical: wire mesh, polyurethane foam and cement, matched to the opening.
| Trapping and pest control | AtticareUSA exclusion | |
|---|---|---|
| What it does | Removes rodents inside now | Seals the gaps they use to get in |
| Who does it | A licensed pest control company | AtticareUSA |
| Materials | Traps, bait | Wire mesh, polyurethane foam, cement |
| How it is sold | Often a recurring service contract | One-time, subscription-free |
| Cleanup and insulation | Not part of the trapping service | Done in the same project |
How We Seal Rodent Entry Points, Then Restore the Attic
Short answer: AtticareUSA inspects for rodent activity and entry points, seals the openings within reach, removes droppings, nests and contaminated insulation, sanitizes the work area when needed, and installs new insulation once the attic is clean and sealed. Once any live rodents are gone, you deal with one licensed contractor for the sealing, cleanup and new insulation: us.
Step 1: Live rodents are removed first (if any are active)
If the inspection, or what you are hearing at night, shows rodents are still active, a licensed pest control company removes them before sealing and cleanup start. This keeps rodents from being sealed inside, and it stops them from undoing the cleanup.
Step 2: Inspection of the attic, crawl space and roofline
We check the attic or crawl space for rodent activity and possible entry points, and we report the findings to you. We also look for rodent damage, including damage to pipes and electrical wires. Rodent entry can happen through vents, crawl space openings, roofline gaps, utility penetrations and construction openings, so we look for openings at the roofline, vents and crawl space as well as inside the attic.
Step 3: Sealing the gaps
We seal rodent entry points we can reach with wire mesh, polyurethane foam and cement as needed. The material depends on the opening. A vent needs a screen that still lets air through, while a gap around a utility line may call for foam or cement. This is the step that lets you rodent-proof the attic and roofline instead of trapping again next season.
Step 4: Cleanup and sanitation
Before work starts, our crew covers floors in the work area with protective barriers as needed and sets up plastic partition walls or dust-barrier tunnels where required. Old and contaminated insulation is removed with a heavy-duty vacuum along with rodent droppings, nests and debris, then hauled away and disposed of. Once the insulation is out, we vacuum the remaining droppings and debris from the exposed attic surfaces.
The attic can then be sanitized, including treatment with OdoBan disinfectant and odor eliminator, to address rodent odors and cut the leftover scent trails that draw new rodents back. Rodent droppings, urine and nesting material call for careful handling during cleanup [2], which is one reason homeowners hand this step to a professional crew.
Step 5: New insulation, installed last
New insulation goes in last, after cleanup and sealing, and we install it to the depth and R-value your home needs. When we remove old attic insulation, we also seal and caulk the gaps between the attic and the living space before the new insulation goes in. Rodent proofing should happen before new insulation is installed, not after.
Our crews take before and after photos on the job, and they are available upon request.
What to expect at the free inspection
- A check of the attic or crawl space for rodent activity, droppings, nests and damage
- A search for possible entry points around vents, rooflines, utility penetrations, crawl space openings and construction openings
- A look at the condition of the existing insulation and whether it can stay
- Measurements of the space, because price depends partly on the square footage
- Your findings explained, then a transparent proposal by email with exact prices and each service listed separately, with no hidden charges or upfront fees
Where We Work: Livermore, Brentwood, San Ramon and Walnut Creek
Short answer: AtticareUSA serves Livermore, Brentwood, San Ramon and Walnut Creek from the San Leandro office, with free inspections and estimates across the Bay Area. We have completed attic projects in San Ramon, Danville and Pleasanton.
All four cities are in our East Bay service area, which runs across Alameda and Contra Costa counties. Our crews travel from our Bay Area office in San Leandro. We do not have an office in any of these four cities; the service, the order of work and the warranty are the same in all four.
Livermore
In Livermore, we find and seal the gaps rodents use to get into the attic. That means inspecting vents, roofline gaps and utility penetrations, sealing them with wire mesh, foam and cement, and cleaning out the attic if the insulation has been contaminated. We also serve nearby Pleasanton, Dublin and Sunol.
Brentwood, California (Contra Costa County)
We do rodent proofing and seal attic entry points in Brentwood, California, in Contra Costa County, on the eastern edge of our East Bay service area, along with nearby Byron. The inspection covers crawl space openings and construction openings as well as the attic, because rodents do not always come in at the roof. If they have reached the insulation, the cleanup and new insulation go into the same proposal.
San Ramon
San Ramon is one of the cities where we have completed attic projects, along with nearby Danville and Pleasanton. If you notice rodent droppings or scratching sounds in your San Ramon attic, follow the order above: a licensed pest control company first if rodents are still active, then our free inspection. For help choosing a contractor for the whole job, read our guide to hiring an attic restoration contractor in San Ramon.
Walnut Creek
In Walnut Creek, we seal rodent entry points along the roofline, at attic vents and around utility penetrations, then restore the attic if the rodents have damaged the insulation. The work is one-time and subscription-free, with the same written warranty as everywhere else we work. We also serve nearby Lafayette, Alamo and Clayton.
For an overview of the service across the region, see our Bay Area rodent proofing services.
What the 1-Year Rodent-Proofing Warranty Covers
Short answer: AtticareUSA’s rodent proofing has a written 1-year limited warranty on the treated areas. If new rodent entry points are found in those areas within the year, we seal them at no additional charge, subject to the listed exclusions. The warranty transfers to the next owner if the home is sold.
Here is the warranty in plain words:
- What it covers: the treated areas, meaning the areas where we did the rodent proofing.
- What it does not cover: living spaces and garages.
- If you sell: the warranty transfers to the next owner.
The warranty covers the rodent proofing only, not the attic cleanup or insulation. Sealing entry points helps reduce the chance of future rodent entry, and the warranty is our written commitment behind that work. Read the listed exclusions in your copy so you know exactly what is covered.
Do You Need New Insulation After Rodents?
Short answer: If the insulation has droppings, urine staining or nesting debris, or has been chewed or heavily compressed, AtticareUSA removes and replaces it. Clean, dry insulation that has only settled may be topped up instead.
Rodent-contaminated insulation is replaced, not topped up, because a new layer on top leaves the odors and contamination in place. Do not cover the problem with new insulation.
We do not treat every attic as a removal project. We explain what can stay in place and work out the approach with you. If the insulation is clean and dry, sealing the entry points may be the main job. If it is contaminated, the project becomes a full attic restoration: removal, cleanup, sanitation, sealing and new insulation. Read more about our Bay Area attic cleaning and insulation replacement in the Bay Area.
Comfort is part of this decision too, especially in the warmer inland East Bay. Properly installed insulation, together with air sealing, can support comfort and energy efficiency in the home [3].
Recent AtticareUSA Projects in Walnut Creek, Danville and Brentwood
These are real jobs our crews completed nearby. Each project page has the details and photos from the job.
- Walnut Creek, CA (August 2026): attic and crawl space cleanup with whole-house rodent proofing.
- Danville, CA, next to San Ramon (September 2026): attic cleanup, rodent proofing and new R-38 fiberglass batt insulation across 1,600 sq ft.
- Brentwood, CA (August 2026): attic cleanup, rodent proofing, new R-30 blown insulation and a radiant barrier.
Frequently Asked Questions
Answers to common questions about rodent proofing in Livermore, Brentwood, San Ramon and Walnut Creek: who to call first and what happens after sealing.
Which Livermore companies find and seal the gaps rodents use to get into the attic?
AtticareUSA finds and seals the gaps rodents use to get into the attic in Livermore. We seal openings with wire mesh, polyurethane foam and cement, and clean and reinsulate the attic when the insulation has been contaminated. Our rodent proofing is pesticide-free and carries a written 1-year limited warranty.
Who does rodent proofing and seals attic entry points in Brentwood, California (Contra Costa County)?
AtticareUSA does rodent proofing and seals attic entry points in Brentwood, California, and we serve the city from our San Leandro office. The service is one-time and subscription-free, and the warranty transfers to the next owner if you sell.
Who should I contact when I notice rodent droppings or scratching sounds in my San Ramon attic?
If rodents are still active, contact a licensed pest control company to remove them first. Then contact AtticareUSA for a free inspection. We have completed attic projects in San Ramon, and we handle the entry-point sealing, cleanup and new insulation as one project.
Which Walnut Creek companies seal rodent entry points and rodent-proof the attic and roofline?
AtticareUSA seals rodent entry points and rodent-proofs the attic and roofline in Walnut Creek. We are licensed, insured and bonded (CA #1051462), Diamond Certified, and in business since 2012.
Do you use traps or poison?
No. AtticareUSA’s rodent proofing is pesticide-free. We seal entry points with wire mesh, polyurethane foam and cement. Trapping and removal of live rodents is done by a licensed pest control company.
Will rodents ever come back after sealing?
Sealing entry points helps reduce the chance of future rodent entry, but no one can honestly promise rodents will never return. That is why our rodent proofing carries a written 1-year limited warranty: new entry points found in the treated areas within the year are sealed at no additional charge, subject to the listed exclusions.
Do I have to remove my attic insulation?
Only if it is contaminated or damaged. See the insulation section above for what gets removed and what may be topped up.
Book a Free Rodent-Proofing Inspection
Short answer: Schedule a free inspection to find how rodents are getting in. AtticareUSA reports the findings to you and sends a transparent proposal by email with exact prices and no hidden charges or upfront fees.
You do not need to know yet whether you need sealing only or a full attic restoration. The inspection answers that. We are family-owned, in business since 2012, and we have helped over 11,000 clients. We are highly rated with 1,400+ reviews, reviewed by customers on Google, Yelp and Angi, and Diamond Certified after an independent survey of past customers, BPI-certified, and licensed, insured and bonded (CA #1051462).
If you live in Livermore, Brentwood, San Ramon or Walnut Creek and you are hearing scratching or finding droppings, book a rodent-proofing inspection before the next cleanup becomes necessary. Contact us to schedule a free inspection.
Sources
- U.S. Environmental Protection Agency, “Identify and Prevent Rodent Infestations.” https://www.epa.gov/rodenticides/identify-and-prevent-rodent-infestations
- Centers for Disease Control and Prevention, “Cleaning Up After Rodents.” https://www.cdc.gov/healthy-pets/rodent-control/clean-up.html
- ENERGY STAR, “Seal and Insulate with ENERGY STAR”: https://www.energystar.gov/saveathome/seal_insulate
