Top Housesitter's Pest Prevention Guide

One of the advantages of finding housesitters when you go away is that they maintain your pest prevention routines to ensure your home is pest free on your return from holiday. In this pest prevention guide we offer you a list of ways you and your housesitter can protect your home through the maintenance of regular routines and good habits in the home. Read on to learn more.

How to Protect Your Home from Pests While You’re Away: A Housesitter’s Pest Prevention Guide

At HouseSit Match, most of what we talk about revolves around trust: trusting a sitter with your keys, your pets, your garden, and the quiet routines that keep a home running smoothly. But there’s a less glamorous piece of that trust equation that homeowners and sitters alike tend to overlook until it becomes a problem, and that’s pest prevention. Whether you’re a homeowner heading off for a three-month stint abroad or a house sitter settling into someone else’s space for the first time, an unattended or lightly occupied home is exactly the kind of environment pests find irresistible.

pest prevention routines start with regular cleaning routines — The best pest prevention guide starts with routine cleaning and removal of food scraps
Photo Credit – Liliana Drew

This matters more than most people realize. A home that sits quiet for days or weeks, with fewer footsteps, less regular cleaning, and food sometimes left unattended, sends out a welcome signal to ants, rodents, and other unwanted guests. House sitters are in a unique position here because they’re the eyes and hands on the ground, but they can only act on what the homeowner has communicated and prepared for in advance.

That’s why prevention has to start before departure, not after someone spots a trail of ants on the kitchen counter. Local pest pressures vary by region and climate, so if you’re a Washington DC homeowner preparing your house for a sitter, it helps to understand what’s common in your area and set up defenses accordingly. Working with a company such as Pest Services Company in Washington DC before you leave can give you a baseline inspection and a clear list of vulnerabilities, so your sitter isn’t caught off guard by problems that were already brewing.

Why Vacant or Partially Occupied Homes Attract Pests: Understanding the Risk

Pests thrive on predictability, and a home with irregular activity gives them exactly that. When trash sits a little longer than usual in bins indoors or out, when dishes aren’t washed immediately, or when a sitter isn’t yet familiar with which doors tend to stick open a crack, small openings appear for pests to exploit.

Even well-maintained homes can experience a spike in activity simply because the usual rhythms of daily life have shifted, and nobody is around often enough to notice early warning signs like small droppings, chewed cardboard, or faint scratching sounds in the walls. Avoid these homecare mistakes by making sure the house sitter maintains your pest prevention routines in your absence.

The statistics back up how widespread this issue already is, even in fully occupied homes. Nearly 40 percent of U.S. homeowners report dealing with a pest infestation every year, and ants alone affect more than half of American households at some point. Add in the disruption of travel, an unfamiliar caretaker, and possibly a longer vacancy window, and the odds only increase. Termite damage is a particularly costly example of what happens when small issues go unnoticed for too long, with repair costs averaging around $3,000 per colony according to the National Pest Management Association.

Statistic	Figure
U.S. homeowners experiencing pest infestation annually	40%
Most common household pest in America (ants)	56% of homes affected
Average cost to repair termite damage per colony	$3,000
Homeowners citing sealing cracks/gaps as go-to prevention	58%
Homeowners planning preventative pest control in spring/summer	60%

Prevention Foundation: Eliminate Food, Water, and Shelter Sources

dry foods in air tight containers — Keep any foods not in the fridge put away in cupboards in air tight containers and check regularly
Photo Credit – Meruyert Gonullu

Every effective pest prevention strategy starts with removing what pests actually need to survive. According to EPA, the most effective way to prevent infestations is to deny pests access to food, water, and shelter, the three essentials they need to live and reproduce. This principle should guide every decision a homeowner makes before leaving and every habit a sitter maintains while in residence, since it addresses the root cause rather than just the visible symptoms.

Before departure, homeowners should empty perishable food from pantries, store dry goods in airtight containers, and make sure trash and recycling are taken out rather than left to accumulate. Fix any dripping faucets or slow leaks, since standing water is one of the biggest draws for insects and rodents alike.

Housesitters should be briefed on maintaining these same habits throughout their stay, including regular trash removal, prompt dishwashing, and keeping pet food sealed rather than left out overnight, since pet bowls are a surprisingly common entry point for ants and other insects.

Seal Entry Points and Maintain the Home Exterior

Once the interior habits are covered, attention should shift to the physical structure of the home itself, since even the cleanest kitchen won’t help if pests can simply walk in through a gap under the door. More than half of homeowners, 58 percent according to a 2025 Modern Pest Services survey, name sealing cracks and gaps as their primary prevention strategy, and for good reason. Small openings around windows, utility lines, foundation cracks, and door thresholds are the most common access points for everything from spiders to mice.

Before leaving for an extended trip, walk the perimeter of the house and look for gaps that need caulking, torn window screens that need patching, and vegetation touching the exterior walls that could serve as a bridge for insects. Trim back bushes and tree branches, clear gutters of debris, and make sure firewood or mulch piles are kept away from the foundation.

These outdoor maintenance tasks are easy to overlook but make a measurable difference, and it’s worth noting that 60 percent of homeowners now plan their pest prevention efforts specifically around spring and summer, when pest activity tends to peak.

It you have an indoor compost bin be careful. You must seal the lid and keep it in another container and empty it on a very regular basis.
Photo credit – Letícia Alvares

Communicate Pest Prevention Routines with Your House Sitter

All of this preparation only works if it’s clearly communicated to whoever is staying in the home. A written checklist covering all the pest prevention routines such as trash schedules, which areas to inspect periodically, and what early warning signs to watch for gives sitters the confidence to act quickly rather than waiting until a small issue becomes a visible infestation.

Include information about any previous pest issues the home has had, since a sitter who knows there was a mouse problem in the garage last winter will be far more attentive to related signs than one who has no context at all.

It also helps to leave contact information for a local pest control provider along with instructions on what to do if something is spotted, whether that means sealing off an area, taking a photo for documentation, or calling for an inspection right away. Reactive treatment is sometimes necessary, but it should always be treated as the backup plan rather than the primary strategy. When prevention is built into the daily routine and reinforced through clear communication between homeowner and sitter, the home stays protected quietly and consistently, which is exactly the outcome everyone traveling or house sitting is hoping for.