What rodents actually damage.
Gnawing never stops for rodents, as their incisors keep lengthening. Batting, flex duct, plastic piping, wire sheathing, drywall facing and wood trim all make suitable chewing material. Most damage is quiet for a long time and shows up as a bill later.
The most worrying damage involves wiring. Chewed insulation can expose copper, and exposed copper in an attic or wall is a fire hazard. We never repair wiring ourselves, but we flag it clearly in the estimate.
Itemizing the damage.
| Item. | What we see. | Typical response. |
|---|---|---|
| Attic insulation. | Matted, stained or tunneled. | Remove and replace affected sections. |
| Flexible duct. | Torn wrap or chewed liner. | Repair or replace the run. |
| Vent screens. | Holes or bent frames. | Replace with metal mesh. |
| Drywall. | Chewed corners or small holes. | Patch and finish. |
| Wire jackets. | Chew marks or exposed copper. | Refer to an electrician. |
Photographs accompany each line so you or your insurer can see what was found. Prices are listed separately, and you approve only what you want done.
Why order matters.
Repairs belong at the end. If you replace insulation while animals still have a way in, they chew the new material too. The sequence is trap, seal, clean and then repair, as explained on our sealing and attic cleanup pages.
Moisture and salt on the South Shore.
Coastal houses face humid air, and rodent damage can mix with damp. Wet insulation loses value, ducts can sweat and metal screens can rust. When we replace a vent screen or duct fitting, we choose materials that fit the exposure, such as galvanized or coated metal.
Safety notes.
- Do not touch a wire that shows bare copper, and shut off power to that circuit if you can do so safely.
- Wear gloves and a mask when handling old insulation.
- Keep children and pets away from damaged areas.
- Photograph everything before anything is moved.
Working with your mechanic, electrician or contractor.
Our estimate lists what we found and what we recommend. Items outside our trade, such as wiring, structural wood or HVAC repairs, go to the right specialist. We are happy to share photographs so they know where to look.
Before you call: how the CDC says to clean up.
These federal pages are summarized in loose terms. For health questions, a doctor is the better source than a pest company.
- Leave the broom and the shop vacuum in the closet, because dry droppings crumble and the dust goes straight into your lungs.
- Open every opening in the room, then do something else for thirty minutes before you return.
- Thin disposable gloves handle small messes, and heavier rubber pairs handle bigger ones and can be rinsed afterward.
- Spray plenty, back away, wait a few minutes, then lift everything with disposable towels.
- Drop soiled towels and any dead animal into one plastic bag, using gloves or tongs, then tie it and place it in the household trash.
- Illness after contact with rodent waste is a physician's question, so tell the doctor exactly what you touched.
Public health pages we relied on.
Federal agencies set the rules for cleanup and for bait handling, and their pages are linked here.
- EPA explainer for rat and mouse bait: Which rodenticides are restricted and why a number of them never get shelved at retail.
- Hantavirus precautions from the CDC: The CDC's hantavirus overview with tips for keeping rodents out of homes and vehicles.