Rodent Damage in a Stored RV: Wiring, Insulation and Insurance

When temperatures drop in Calgary and across Alberta, mice go looking for warm, dry shelter. An RV parked on an acreage, a farm or a storage lot offers exactly that, along with insulation, upholstery, paper towels and leftover food to build nests with. Mice can squeeze through surprisingly small gaps, so a coach that looks sealed from the outside often is not.

Common entry points include gaps around plumbing and wiring where they pass through the floor, the shore power cord hatch, worn slide-out seals, furnace and water heater vents, and openings in the underbelly. Motorhomes add the engine bay and chassis, where wiring looms and air intakes are easy for rodents to reach.

Rodents chew constantly to keep their teeth worn down, and wire insulation is an easy target. Chewed wiring can stop lights, slides, levelling jacks or the fridge from working, cause intermittent faults that are hard to track down, or leave bare conductors that can short. On both 12 volt and 120 volt circuits, a damaged wire is a fire risk, not just an annoyance.

Warning signs include droppings near wire runs, shredded material in compartments, a musty or urine smell, and electrical problems that show up after storage. If you find a chewed wire, do not wrap it in tape and carry on. Damaged sections should be properly spliced or replaced and the whole run checked, because the bite you can see is often not the only one.

Fibreglass and foam insulation make ideal nesting material. Rodents tunnel through floors, walls and the underbelly, leaving nests, droppings and urine that hold moisture against wood framing and subfloor. Over time that moisture can lead to rot, soft spots and odours that cleaning alone will not remove.

Furnace ducts are another favourite spot. A nest in a duct can block airflow, and droppings can be blown into the living space the first time the furnace runs. Chewed water lines may also start leaking once you de-winterize, adding water damage to the list.

Cleanup needs care. Alberta Health advises against sweeping or vacuuming dry droppings, because the dust can carry hantavirus, which deer mice in Alberta can spread. Ventilate the coach, wear gloves and a mask, and soak droppings and nests with disinfectant before wiping them up.

Coverage for rodent damage varies a lot from one policy to the next. Many RV policies list damage caused by rodents, vermin or insects as an exclusion, treating it as a maintenance issue the owner is expected to prevent. Some policies may still cover resulting damage, such as a fire started by chewed wiring, even when the chewing itself is excluded. The only way to know is to read your policy wording or ask your broker directly.

If you plan to claim, document everything before you clean: photos of droppings, nests, chewed wires and entry points, plus the date you found the damage. A written inspection report from a repair shop helps an adjuster understand the cause and extent. Your insurer may also ask how the RV was stored and what prevention steps you took, so keep notes.

At Horton RV Services in Calgary, we can inspect your coach after storage, trace electrical faults, open up affected areas and document what we find for your claim. If the damage has reached the floor, walls or framing, we can handle the structural repair too. It is far better to find these problems in the shop than on the highway.