Caring For The Vehicles

When you take on a house sit, especially an extended one, your responsibilities will often go beyond caring for pets, plants, and the property itself. One important duty that is sometimes overlooked is the care of the homeowner’s vehicle. Even if the car isn’t being used regularly, it still needs occasional attention to keep it in running order. A flat battery, stiff brakes, or low tyre pressure can be frustrating and costly for the homeowner to return home to — and it can be easily avoided with a little forethought and care.

Two Different Approaches From Homeowners

Not every homeowner has the same expectations when it comes to their vehicle. Some will disconnect the battery before leaving and are content for the car to sit idle until they return. Others prefer to leave the battery connected so that the house sitter can turn over the engine regularly and keep the vehicle in good working order.

This is why it’s important to clarify with the homeowner before the sit begins. If they’ve disconnected the battery, no action will be needed. But if they’ve asked you to start the car and run the motor, then try to remember to follow through.

Why Turning The Vehicle Over Matters

Running a vehicle now and then does more than simply charge the battery:

It allows engine oil and other fluids to circulate, which prevents them from pooling or drying out.

It helps keep the brakes from seizing and stops rust forming on the rotors.

It prevents seals from drying out, which can otherwise lead to leaks.

It avoids tyres developing flat spots from staying in the same position too long.

In short, turning over the car helps preserve the entire system — not just the battery.

How Often Should You Start The Vehicle?

As a general guideline, turn the vehicle over once a week. This is usually enough to keep things healthy. If the vehicle is older or has a weaker battery, every 3–4 days may be preferred. It could pay to check with the homeowner first, as their vehicle’s age, condition, or warranty may mean a different schedule is best.

How Long Should You Run The Engine?

Let the engine run for at least 10–15 minutes each time, or until the needle on the temperature gauge reaches the midway point. This ensures that the alternator tops up the battery and that fluids move freely through the system. Keep the vehicle in park (or neutral with the handbrake on) and run in a well-ventilated area. Never run a car in a closed garage.

Should You Drive It?

If the homeowner is comfortable with it — and you’re insured — it’s even better to take the vehicle for a short drive. A 15–20 minute drive once a week charges the battery more effectively, prevents tyre flat spots, and keeps brakes, seals, and moving parts in good order. Simply idling in the driveway isn’t as beneficial as a gentle drive, though it’s still far better than doing nothing. If you do take it for a drive, then early Sunday mornings is the best time to do it when the roads are quieter and there is less traffic about.

Additional Tips For Vehicle Care During A House Sit

Check tyre pressure once a month. Vehicles left stationary can lose air slowly, and underinflated tyres can damage sidewalls.

Keep an eye out for leaks under the car. Fresh patches of oil, coolant, or transmission fluid are worth noting for the homeowner.

Get into a habit of checking all fluid levels before you run or drive the vehicle, such as the engine oil, transmission oil, radiator, coolant reservoir etc.

Keep the fuel tank at least half full. This prevents condensation forming in the tank, which can cause water in the fuel.

If the vehicle lives outside then clean off leaves, bird droppings, or debris. These can damage paint if left unattended for weeks.

Keep a logbook. Record when you started or drove the vehicle, for how long, and any observations. Homeowners appreciate this extra care.

Clear Communication Is Key

Before the sit begins, ask the homeowner:

Do they want the battery disconnected, or the car started regularly?

If they’d like it started, how often?

Are you covered under their insurance policy if you drive the vehicle?

Having these details agreed upon upfront ensures you’re both comfortable with the arrangement.

Final Words

Caring for a homeowner’s vehicle during an extended house sit is one of those small but highly valued responsibilities that sets apart a good sitter from a great one. Whether the battery is disconnected or you’re asked to start the car regularly, following the homeowner’s wishes shows respect and responsibility. And if you do turn the vehicle over, remember — it’s not just about the battery. You’re keeping the entire car in healthier condition, ready for the homeowner’s return.