Milwaukee averages about 45 inches of snow a year and two to four weeks below 10°F. A house that is properly prepared for that winter will cost hundreds less to heat and arrive in spring with no cold-weather damage. One that is not gets the ice dam, the frozen hose bib, the window that leaks air all winter, and the caulk that cracked open in January. The prep is a weekend of work on most houses. Here is exactly how to approach it.
Saturday morning: exterior
Disconnect every garden hose. Shut the interior valve feeding each outdoor hose bib, then open the bib to drain the residual water in the pipe. A frozen exterior faucet is the single most common preventable winter service call we make — and it costs $150 to $300 to repair versus five minutes of prep. Walk the full exterior caulk perimeter: windows, door frames, where trim meets siding, where siding meets foundation. Any gap you can see is cold air and moisture getting in. Resealing with a good siliconized latex caulk rated to −40°F takes two to three hours and runs about $30 in materials.
Saturday afternoon: windows and doors
Check every exterior door for weatherstrip condition — press a dollar bill in the closed door and pull; if it slides out without resistance, the seal is gone. Weatherstrip kits are $8 to $25 per door and install in 20 minutes. Adjust each door so it latches cleanly in the closed position. In Milwaukee homes, doors typically need to move slightly inward for winter as the frames contract. Adjusting a strike plate is a 15-minute job with a chisel and a screw. Windows with visible gaps at the frame can be sealed with removable rope caulk that peels off in spring — $3 a roll and 100% effective.
Sunday morning: mechanical
Check your furnace filter and replace it if it is over 90 days old — a clogged filter cuts efficiency and can trigger a system fault on the coldest night of the year. Locate your main water shutoff valve and confirm it actually turns. In a Milwaukee emergency — burst pipe, supply line failure — you will go for that valve first, and a seized gate valve on a flooded floor is a catastrophe. Test every smoke and CO detector. Change the batteries in anything that is battery-only. Wisconsin winters keep windows closed for four months and furnaces running constantly; CO risk is highest in this season.
Sunday afternoon: the list
Drain and store any hoses or outdoor equipment that holds water. Verify that dryer and bathroom exhaust vents are not blocked by bird nests or debris — both are fire risks and moisture traps in winter. Check the attic hatch seal if you have one; a cold attic ceiling in the hallway is a heat-loss and ice-dam diagnostic in one. If you have a fireplace or wood stove you plan to use, inspect the damper now rather than on the first cold night.
The whole routine runs four to six hours on a typical Milwaukee home. Our fall seasonal maintenance package covers the exterior and door/window work professionally, with a written report of any issues flagged during the visit — which is worth having for any home going into a Wisconsin winter.