How to Winterize Your Northern Michigan Lake Cottage

Published On:
September 22, 2026
Copper water pipes being drained to winterize a cottage

Closing a lake cottage for the winter takes more than locking the door and turning down the heat. In Northern Michigan, a few skipped steps can leave you with burst pipes and thousands of dollars in water damage by spring. A careful shutdown in the fall protects your investment and makes reopening simple. Here is how to winterize a seasonal home the right way.

Why It Matters Here

Homes around Burt Lake, Mullett Lake, and the surrounding communities often sit empty for months through hard freezes. Water left in the plumbing can freeze, expand, and split a pipe, and because no one is there to catch it, a single crack can flood the home and run for weeks before anyone notices. The goal of winterizing is simple: get the water out of the house so there is nothing left to freeze.

Draining the Plumbing

Protecting the plumbing is the heart of the job. Work through it in order.

  • Shut off the main water supply where it enters the home.
  • Open every faucet, indoors and out, and flush the toilets to release pressure.
  • Drain the pipes starting from the lowest point in the house, using the drain valves or a compressor to clear the lines.
  • Add non toxic antifreeze made for plumbing to drain traps and toilet bowls so the small amount of water that remains cannot freeze.

Do not use automotive antifreeze anywhere in the plumbing. Only the non toxic type made for potable water systems is safe.

The Water Heater

Turn off the power or gas to the water heater, then drain the tank completely. A tank left full can freeze and crack over the winter, and running a heater dry when you return can damage it, so shutting it down properly protects the unit both ways.

Do Not Forget the Well

If your cottage runs on a well, the pump and pressure tank need attention too. Drain the pressure tank and protect the pump according to its type. A cracked pressure tank or a damaged pump is an expensive spring surprise, and it is easy to prevent with a proper shutdown. If you are unsure how your well system drains, this is a good task to hand to a professional. Our well services cover this kind of seasonal work.

Appliances That Hold Water

Dishwashers, washing machines, and refrigerator ice makers all hold water that can freeze. Disconnect and drain the washing machine hoses, run the dishwasher empty and clear its line, and shut off and drain the ice maker supply. Leaving a little plumbing antifreeze in the dishwasher and washer drains adds a margin of safety.

Heat, Pests, and Moisture

If someone will check on the home through the winter, setting the thermostat to a low but safe temperature adds a layer of protection for anything you could not fully drain. If the home will be left cold, a complete drain down is the safer route. Either way, take steps to keep pests out and moisture down. Seal gaps where mice can enter, remove food from the pantry, and leave cabinet doors open so what little warmth there is reaches the pipes underneath.

Outside the Home

Disconnect and store garden hoses, shut off and drain outdoor spigots, and clear the gutters so meltwater drains away from the foundation rather than pooling and refreezing. A few minutes outdoors in the fall prevents ice problems later.

Reopening in Spring

Doing the work right in the fall makes spring reopening straightforward. When the pipes were drained and protected properly, you simply reverse the steps: close the faucets, turn the main water back on, refill and restart the water heater, and check every fixture for leaks as the system comes back up to pressure. If a cold snap ever catches a line before you have finished, our guide on how to properly thaw frozen pipes will help.

A Quick Winterizing Checklist

Once you have been through the full process, this short list makes each fall faster:

  • Shut off and drain the main water supply and all pipes.
  • Drain and shut down the water heater.
  • Protect the well pump and drain the pressure tank.
  • Add plumbing antifreeze to traps and toilets.
  • Drain dishwashers, washers, and ice makers.
  • Set the heat safely or drain completely, then secure against pests.
  • Disconnect hoses and drain outdoor spigots.

Signs a Cottage Was Not Properly Winterized

When spring arrives, a few signs point to a shutdown that missed something. Low or no water pressure when you turn the supply back on can mean a cracked line. Water pooling near fixtures, damp spots on ceilings or walls, and a water meter that keeps moving with every tap closed all suggest a leak that opened over the winter. A musty smell often points to moisture that built up in a closed home. Catching these before you have fully repressurized the system limits the damage.

When to Call a Professional

Plenty of homeowners handle a basic winterizing, but some parts of the job carry more risk than reward. Wells, water heaters, and homes with complicated plumbing are easy to get wrong, and a single missed line can undo all the other work. If your cottage has an involved layout, if you are short on time before the first freeze, or if you simply want the assurance that it was done right, handing the job to a professional is money well spent against the cost of a burst pipe.

Frequently Asked Questions

Do I really need to drain the pipes if I leave the heat on?

Leaving the heat on lowers the risk, but it does not remove it. A power outage or a furnace failure in deep cold can let the pipes freeze while you are away. For a home that sits empty for months, draining the plumbing is the safer choice.

What kind of antifreeze goes in the drains?

Use only the non toxic plumbing antifreeze made for potable water systems. Automotive antifreeze is poisonous and should never go into household plumbing.

Can I winterize the cottage myself?

Many homeowners handle the basics, but wells, water heaters, and complex plumbing are easy to get wrong. If you are unsure or short on time, having a professional do it removes the risk of a costly mistake.

When should I winterize?

Finish before the first hard freeze. In Northern Michigan that often means completing the work in the fall rather than waiting until late in the season.

How long does it take to winterize a cottage?

A straightforward home can be winterized in a couple of hours once you know the steps. Wells, multiple bathrooms, and older plumbing add time. Building in a margin before the first hard freeze keeps it from becoming a rushed job.

Should I leave any heat on if the home has a well?

If the well equipment cannot be fully drained and protected, keeping a low, safe temperature and having someone check on the home adds a margin of safety. When the system can be drained down completely, that is the more reliable choice for a home left empty for months.

Let M&M Handle It for You

Thorough winterizing protects a home you cannot keep an eye on. If you would rather leave it to people who know these winters, our seasonal plumbing services have you covered. Explore all our plumbing services, or contact us to schedule winterizing for your Northern Michigan cottage.

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