Looking After a Home You Are Not Living In

The worry is rarely the dramatic one. It is the slow drip nobody hears, the humid fortnight with every window shut, the post stacking up behind the door. A home you are not living in still has pressurised water, wiring, food residue and a roof that has to shed rain, and nobody is there to notice when any of them misbehaves. This page covers the main risks, a general absence routine, who can check the place, how water systems need handling after a long shutdown, and where doing it all yourself stops being realistic. Rules and risks vary by country and by property, so read it as background. Your own insurer, local authority or a qualified professional has the final word.

Why empty homes fail quietly

In an occupied house, ordinary life catches small faults. Someone sees the stain, smells the damp, hears the toilet running. Remove the people and the faults carry on, only for longer. An empty home needs a substitute for the attention occupants give it for free: fewer things that can go wrong, someone who looks in now and then, and a plan for the first hour after you return.

Water: leaks, freezing and the shutoff valve

Water is the most common way an empty house hurts itself. The U.S. Environmental Protection Agency (EPA) estimates that the average household's leaks waste more than 9,300 gallons of water a year, and that nine percent of homes have leaks wasting 50 gallons or more per day. Those figures describe homes where people live and may eventually spot the problem. In a house nobody visits, a leak just keeps running until someone arrives.

Freezing is the sharper version of the same risk. One municipal water utility, the City of Ravenna in Ohio, tells residents to keep the thermostat at no lower than 55 degrees Fahrenheit (about 13 degrees Celsius), and to close the water shut-off valve if a property is vacant or unattended for a long period. Freezing only matters in cold climates, where winter and storm preparation goes further.

Closing the main valve limits the damage from a burst pipe or failed hose. The trade-off is that nothing flushes through the pipes, and anything that depends on mains water (irrigation, a pool top-up, some heating systems) stops too. If you are unsure what your valve controls, a plumber can show you once.

Damp, mould and pests

Damp follows water. The EPA puts it simply: the key to mold control is moisture control. Its guide says to dry water-damaged areas and items within 24 to 48 hours, and to keep indoor humidity below 60 percent (ideally between 30 and 50 percent) where possible. A closed-up house in a humid climate can sit above that range for weeks. See damp, mould and humidity in empty homes.

Pests are drawn to the same conditions plus food. The EPA's pest guidance for housing managers recommends regular inspection of the building exterior for holes where pests could get in, fixing leaking pipes and faucets as soon as possible, and keeping bins and storage tightly lidded, noting that food and drink left on or in recyclables will help support insects and rodents. Leave nothing edible behind, including the half-bottle in the recycling. More in pest prevention in empty homes.

Fire, electrics and security

Fire in an unoccupied building has a particular problem: late discovery. The U.S. Fire Administration's report on vacant residential building fires says it typically takes longer for these fires to be detected, because there are no occupants to notice the smell or sound or to respond to an alarm. For 2013 to 2015 it estimated 23,800 such fires a year in the United States, 53 percent of which spread to involve the entire building (against 15 percent for nonvacant homes), with an average loss of $30,150 per fire against $15,940. Electrical malfunction was about 8 percent of the fires; intentional fires led at 34 percent.

A caution: "vacant" in that report includes buildings under renovation, unsecured or in disrepair, so it is not a clean picture of a tended holiday home. It does show the direction of risk, though. With no one present, a small fire has time to become a large one. Keep smoke alarms working, and ask a qualified electrician which circuits should stay live (alarms, a fridge, a dehumidifier) and which can be switched off.

Security is the other worry. London's Metropolitan Police says burglars are aware of the times when someone is expected to be away from their house, such as holidays, and that they typically do not want to be seen or heard. Both favour a home that looks used and overlooked. The full picture, with country differences, is in security for empty homes.

Heat is covered least by public sources for empty homes, so this guide stays general on it. See cooling an empty house in summer.

How the length of absence changes the risk

No source gives a single safe number of days. What public bodies do offer are time-linked rules of thumb, each tied to a different hazard.

Time-linked guidance from public bodies

Hazard	What the source says	Source
Leak or spill	Dry water-damaged areas and items within 24 to 48 hours	EPA
Stagnant water	Use outlets on hot and cold systems at least once a week	HSE (UK)
Cold weather	Thermostat no lower than 55 degrees F; close the shut-off valve if vacant for long	City of Ravenna
Long vacancy	A suitable flushing regime, or draining the system; flush before letting	HSE (UK)
Fire	Detection typically takes longer without occupants	U.S. Fire Administration

Read together, they suggest a rough pattern (this is our reading, not a figure from any source). A few days away is mostly a security question. A few weeks makes water, humidity and pests real concerns. A season or more means the water system itself needs a plan, going out and coming back. Your insurer may also set conditions once a property has been unoccupied for a set period, which varies by policy, so ask them directly.

A sensible absence routine

Keep it short enough that you will do it every time. Before you go, deal with water first (shut it off, or decide why you are not), then heating or cooling, then food and bins, then security. Close windows and keep valuables out of sight. Leave a short written note of what you did, so whoever visits knows the state of the house. Dated photos of each room are a common-sense extra, not something the cited bodies prescribe. The full lists, with reasons, are in the arrival and departure checklists.

While you are away, tell your utility providers if an account will sit idle (see utilities and bills for absent owners), and arrange checks. If the property is cleaned between stays, cleaning a holiday property covers the basics.

On return, resist switching everything on at once. Walk through first, look and smell, then restore water and power in steps and flush the water system before anyone drinks from it or showers.

Who can check the property, and what a check covers

Three kinds of helper are common: a neighbour or friend, a keyholder, and a property manager. They differ in reliability and in what you can reasonably ask of them. A neighbour is close but has no obligation and may be away. A keyholder is someone you trust with a key and a phone number. A manager can be asked to follow a written scope and report back, as covered in choosing and briefing a property manager.

Whoever it is, decide what a visit is for. A useful check is short and the same every time. Look for water on floors, ceilings and under sinks. Look for new stains and for any damp smell on opening the door. Look for signs of pests, such as droppings. Check that doors and windows are secure. Clear post and parcels, since a pile advertises absence. Run the outlets, because the HSE's general principle is that outlets on hot and cold water systems should be used at least once a week. That page is written for UK landlords, but the reasoning applies to any property.

Weekly is a lot to ask of a volunteer. If it is unrealistic, agree a lower frequency with a same-day reporting rule. How a neighbour or keyholder fits into security is developed in the security guide.

Water systems after a long shutdown

This part is easy to skip, because the water looks fine. The risk is Legionella, the group of bacteria behind Legionnaires' disease. The U.S. Centers for Disease Control and Prevention (CDC) says that stagnant or standing water in a plumbing system can increase the risk for growth and spread of Legionella, and that when water sits, hot water temperatures can fall into the growth range of 77 to 113 degrees Fahrenheit (25 to 42 degrees Celsius).

The HSE says it is important that water is not allowed to stagnate, and for vacant properties it advises a suitable flushing regime or, for long vacancies, draining the system, plus flushing out the system before letting the property. The CDC's guidance for reopening buildings says to flush hot and cold water through all points of use, such as showers and sink faucets, and to check the water heater setting. It names at least 140 degrees Fahrenheit, while noting that measures are needed to prevent scalding. Both pages are written for buildings and landlords, and a household heater may have its own limits, so confirm with the manual and local guidance.

Two practical notes follow from the sources. First, the CDC advises that people at higher risk of Legionnaires' disease, such as those with weakened immune systems, consult a medical provider before taking part in flushing. If that describes you, ask someone else to do it. Second, a drained system or any sign of trouble (discoloured water, odd smells, a heater that will not heat) is a job for a qualified plumber.

Doing it yourself or delegating

Doing it yourself keeps costs down and means you know the house. It works when the property is near enough to reach quickly and the systems are simple. It breaks down at distance, in emergencies, and in the quiet months when you are least likely to go.

Delegating buys coverage but creates its own risks. Someone else now holds a key, so who that person is, who they might pass the key to, and who pays when something goes wrong all matter. Informal help from friends is kind but nobody is accountable. A formal arrangement is accountable only as far as the agreement says.

A mix often makes sense: a neighbour for the occasional glance, a more formal check at set intervals, and a written handover sheet that both can follow.

The short version

An empty home does not fail through bad luck so much as through unnoticed time. Cut down what can go wrong before you leave, arrange someone to look at the place on a schedule you can keep, and treat the water system with care when you return. Where a task involves electrics, gas or plumbing at any depth, a qualified professional is the right call.