What rodents damage.
Rodents gnaw all the time to keep their teeth short, and whatever sits in the way can suffer. Common victims are insulation, flexible duct, wire sheathing, plastic pipe, screens, drywall corners and stored goods. Damage can sit unseen in an attic or wall for months.
In a warm, damp climate, ruined insulation and duct can also hold moisture, which lengthens the repair list. The scoping visit looks for moisture along with gnawing.
Scoping the damage.
| Item. | Typical damage. | Repair approach. |
|---|---|---|
| Attic insulation. | Matted, soiled or tunneled. | Remove and replace after cleanup. |
| Flexible duct. | Ripped or chewed through. | Swap the section and seal each joint. |
| Screens and vents. | Chewed openings. | Replace with metal mesh. |
| Drywall and trim. | Gnawed corners or holes. | Patch and repaint. |
| Wiring. | Bare or chewed sheathing. | Licensed electrician only. |
Each item is photographed and listed with a price. You choose what gets done, and nothing is added without a reason.
Safety comes first.
Chewed wiring is a fire and shock hazard. If you see bare conductors, do not touch them. Cut power to that circuit only when that is safe, then phone an electrician. We record what we see and pass it along, but electrical systems are not ours to repair.
If you handle soiled material before repairs, wear gloves and follow the CDC cleanup steps. Never sweep or vacuum dry droppings.
The right sequence.
- Remove the animals through trapping.
- Close openings through exclusion work.
- Clean and treat the space through attic and crawl space cleanup.
- Repair and replace what was damaged.
Skipping a step usually costs more later. New insulation laid over live animals is soon wrecked, and a patched wall with an open gap behind it gets chewed again.
Paperwork and insurance.
Keep dated photos of the damage and of each repair, along with every quote. If you plan to file a claim, ask your insurer first, because some policies exclude vermin damage. We cannot advise on coverage, but we can supply clear itemized quotes.
If you are unsure how much damage exists, an inspection maps it before you commit to any work.
Before you call: working around droppings without stirring dust
The notes come from federal health pages and stay general. Your own physician answers any medical question.
- Brushing dry droppings flings fine particles toward your face, so the broom stays put.
- A room sealed for weeks should breathe for half an hour before anyone enters.
- Keep your hands covered the whole time, then lather well.
- Coat the waste and the patch beneath it, wait five minutes and blot with throwaway towels.
- Used towels and any dead rodent go into a plastic bag, and bare skin stays off the body.
- Feeling feverish or short of breath after exposure is a question for a physician, so describe the cleanup to one.
Where the safety steps come from
Federal agencies write the guidelines on cleanup and bait handling, and their pages are named below.
- EPA rules for rodenticide products: The EPA's own page on restricted rodenticide products and the reasons some stay off retail shelves.
- CDC steps for preventing hantavirus exposure: Tips for limiting rodent contact in homes, sheds and vehicles, taken from the CDC hantavirus section.