Cottage Winter Shutdown: Drain or Heat?

There are two ways to close a cottage for winter. You can drain it, or you can heat it. Both work. Both fail in their own way, and many checklists only cover one of them.

Here is how to decide, and what each approach needs before you lock the door this fall.

Option one: drain it

Draining means shutting off the water, emptying the lines, and leaving nothing in the pipes to freeze. Your plumber usually handles it, and it often includes the water heater, the pressure tank, and plumbing antifreeze in the drains.

The weak spot is anything that still holds water. Toilet traps, sink traps, a low spot in a line, or a fixture someone forgot. Those are the pieces that crack when the building goes cold.

A drained cottage can still use sensors. A temperature sensor tells you how cold the building gets. A leak sensor by the water heater tells you if something let go when the lines were refilled in spring.

Option two: heat it

Heating means leaving the water on and keeping the building warm all winter. The City of Greater Sudbury, for example, suggests leaving the thermostat at 13°C when you are away for a long stretch.

The weak spot here is not the pipes. It is the heat. And heat rarely fails in a dramatic way. It just stops.

How the heat quietly stops

Here are the common ways it happens:

The propane runs out, or a delivery gets missed.
Heavy snow blocks the furnace vent on the side of the house, and the furnace shuts itself off.
The power goes out, and the furnace goes with it.
A thermostat battery dies, or a breaker trips.

None of these make noise. Nobody is there to notice. By the time a neighbour sees water at the door, the damage is done.

That is why a heated cottage needs three layers, not one.

Layer one: know when it is getting cold

Temperature sensors are your early warning. They alert you when the building drops, long before the pipes freeze.

Put them where the cold shows up first:

Near the spot where the water line comes into the building.
In a crawlspace or unfinished basement.
In a bathroom or kitchen on an outside wall.
In a garage or utility room with pipes in it.

Set the alert well above freezing, so there is time to act. A smart thermostat with remote access helps too. Our smart climate and thermostat control lets you see the temperature and adjust it from the city.

Layer two: know the moment water gets out

Leak sensors sit on the floor and alert you the second they get wet. Put them where water tends to escape:

Beside the water heater.
Under the kitchen and bathroom sinks.
Behind the washing machine and dishwasher.
Near the pressure tank and pump, if you are on a well.
Behind each toilet.

A leak sensor catches a slow drip before it runs for weeks.

Layer three: stop the water automatically

This is the piece that turns an alert into protection. A motorized shut-off valve goes on the main water line. When a leak sensor trips, the valve closes on its own. You can also close it from your phone.

Without it, a leak alert at 2 a.m. still means water running until someone gets there. With it, the water shuts off automatically, and you deal with a wet floor instead of a flooded one. That valve is the core of our water leak and freeze protection.

Alerts need power and a connection

Most alerts travel over your internet connection. If the power is out, so is the router, unless it has a battery backup.

Put the network equipment, the alarm panel, and the shut-off valve controller on battery backup. Add a cellular backup path if you can. Our guide to cottage internet options covers what works where cable and fibre do not reach.

Freeze and flood sensors can also run on the same monitored alarm panel as your security system. That way every alert, from a break-in to a burst pipe, comes through one place. Here is how our professional security monitoring works.

Check what your policy actually says

Many home insurance policies have rules about freezing while a building is empty in winter. Here is one real example. An Intact Insurance policy form does not cover water escape during the usual heating season once everyone has been away more than four days in a row. The exceptions are a drained system, or someone entering the building daily to make sure the heat is on.

Wordings differ from policy to policy. Read yours, and ask your broker what it requires. Sensors tell you early. They do not replace what your policy asks for.

If someone does check on the cottage for you, give them their own access code. Our guide to smart lock access codes explains how to set that up.

Before you lock the door this fall

Decide: drained or heated. Do not do half of each.
Test the shut-off valve. Trip a leak sensor with a damp cloth and make sure the valve closes.
Check every temperature and leak sensor shows online in the app.
Put fresh batteries in sensors, thermostats, and smart locks.
Confirm the router and panel are on battery backup.
Book propane deliveries for the whole winter.
Clear the ground around the furnace vent, and plan who will check it after big snowfalls.

Questions we get

Can you add an automatic shut-off valve to an existing cottage?

Yes, in most cases. The valve installs on the main water line where it enters the building, and it pairs with wireless leak sensors. Your plumber may need to make the pipe connection.

Do the sensors work if the internet goes down?

They still sense, but alerts that rely on the internet cannot reach you. That is why we recommend battery backup on the network, plus a cellular path, such as an alarm panel with its own cellular connection.

Do you install water protection around Meaford and Thornbury?

Yes. We work across Collingwood, The Blue Mountains, Thornbury, Meaford, Wasaga Beach, Creemore, Craigleith, and Clarksburg.

Should I drain or heat my cottage?

It depends on how often you visit. If you come up on winter weekends, heating with monitoring usually makes more sense. If the cottage sits empty from Thanksgiving to May, draining is simpler, with a few sensors for peace of mind.

Close it once, and stop worrying

A good winter shutdown is a plan, not a checklist of gadgets. Decide how you are closing, cover the ways it can fail, and make sure every alert has a path to your phone.

See how our cottage security monitoring and water protection fit together, or call 249-444-7793 to book a free design consultation.