The first hard freeze rarely announces itself. One evening the forecast says 34 degrees, the next morning the birdbath is a solid disk of ice, a garden hose left on the spigot has split along its length, and somewhere inside the wall a pipe may be quietly cracking. Plumbers in cold-weather states see the results every spring, when homeowners turn on an outdoor faucet for the first time and water pours into a basement instead of onto the lawn. Nearly all of that damage is avoidable with an afternoon or two of work in the fall.
Winterizing the outside of a home isn't one job. It's a series of small tasks across plumbing, irrigation, power equipment, grills, furniture and landscaping, each with its own timing. The goal is the same in every case: get water out of anything that can freeze, protect fuel systems from sitting all winter, and store or cover anything the cold, wet months will break down. Here's how to work through all of it before the temperature drops below 28 degrees, the point many utilities treat as a hard freeze.
When the Clock Actually Starts
A light frost, when temperatures dip just below 32 degrees for a short time, mostly damages tender plants. A hard freeze, generally around 28 degrees or lower for several hours, is what freezes water in pipes, hoses, sprinkler lines and equipment. That's the deadline that matters for plumbing and irrigation.
The timing varies widely across the country. Guidance from the Farmers' Almanac suggests finishing outdoor water winterization by early to mid-October in northern states, late October to mid-November in the Midwest and Northeast, and late November or December across much of the South. Mountain towns and northern plains can see hard freezes in September. A useful rule of thumb is to have hoses disconnected by the first frost and irrigation drained or blown out before the first hard freeze.
Rather than waiting for a forecast, pick a weekend on the calendar a couple of weeks before the average first freeze date for your area. Your local extension office or the National Weather Service publishes those dates, and they give you a buffer if an early cold snap arrives.
Hoses, Spigots and the Myth of the Frost-Free Faucet
Outdoor faucets, often called hose bibs or spigots, are the most common source of freeze damage around a home. The fix is simple, but every step matters.
Disconnect Every Hose
A hose left attached traps water in the faucet and the pipe behind it. When that water freezes and expands, it can split the faucet body or the supply pipe inside the wall, and the leak often doesn't show until the water is turned back on in spring. Disconnecting the hose lets the faucet drain.
This applies even to frost-free hose bibs, which have a long stem that closes the valve inside the heated part of the house. They're designed to drain themselves after each use, but only if nothing is attached. Utilities and plumbers repeatedly warn that frost-free bibs still burst when a hose stays connected, because the trapped water has nowhere to go.
Shut Off and Drain Standard Faucets
If you have older, standard spigots, find the indoor shutoff valve that feeds each one, usually in a basement, crawlspace or utility room near the exterior wall. Close the valve, then open the outdoor faucet and leave it open long enough for the line to drain completely. Some indoor valves have a small bleeder cap that lets remaining water out; open it with a bucket underneath. Once the line is empty, close the outdoor faucet and install an insulated foam faucet cover for extra protection.
Store the Hoses Properly
Drain hoses fully by stretching them out on a slope or coiling them while holding one end high. Store them, along with spray nozzles, wands and portable sprinklers, in a garage, shed or basement. Sun and freezing temperatures break down rubber and vinyl over the winter, and plastic nozzle bodies often crack if water stays inside them.
Irrigation Systems Need More Than a Shutoff
Underground sprinkler systems are an expensive place to get winterization wrong. PVC and polyethylene pipe can crack when water freezes inside, and the damage usually stays hidden until spring, when zones lose pressure or water bubbles up through the lawn.
The Basic Sequence
Water utilities in cold-climate states recommend the same general steps. First, shut off the main water supply to the irrigation system. Second, turn off the controller or set it to a winter or rain mode so it doesn't try to run the valves. Third, drain the water out of the pipes, sprinkler heads and valves. Finally, protect any above-ground components, especially the backflow preventer, which is often exposed near the house and is one of the most expensive parts to replace.
Drain Valves vs. Blowouts
Some systems have manual or automatic drain valves at low points that let gravity empty the lines. Many systems, especially in areas with deep frost, need to be blown out with compressed air. That process pushes air through each zone until only mist comes out of the heads.
Blowing out a system takes more than a small garage compressor. Guidance from utilities notes that the job typically calls for an air compressor capable of around 100 psi and eye protection, and the compressor needs enough air volume to clear long zones. Too much pressure can damage pipes and heads, and compressed air can launch debris or sprinkler parts at high speed. Never stand over a sprinkler head during a blowout, and never blow air through the backflow preventer itself. Many homeowners hire a sprinkler contractor for this job, which typically costs far less than repairing a cracked backflow assembly.
Protect the Backflow Preventer
After the system is drained, close the backflow preventer's valves according to the manufacturer's instructions and leave its test cocks partly open to relieve pressure. Wrap it with an insulated pouch or blanket designed for the purpose. Avoid sealing it in plastic, which can trap moisture against the brass.
Small Engines: Mowers, Trimmers and Snow Blowers
Gas-powered equipment is where neglect shows up most clearly in spring. A mower that ran perfectly in October may refuse to start in April because the fuel sitting in its tank and carburetor went stale.
Deal With the Fuel
Gasoline starts to break down in as little as a month, forming varnish and gum that clog small carburetor passages. Most pump gas also contains ethanol, which absorbs moisture and can degrade rubber fuel lines and seals in small engines. Engine makers generally advise against using blends above 10 percent ethanol, such as E15 or E85, in small engines at all, and Kohler notes that damage from those blends isn't covered under warranty.
There are two accepted approaches. One is to add a fuel stabilizer to a nearly full tank, then run the engine for several minutes so the treated fuel reaches the carburetor. The other is to run the engine until the tank is empty, which keeps fuel from sitting in the system at all. Check your owner's manual, since some manufacturers prefer one method. If ethanol-free fuel is available nearby, many small-engine experts recommend it for any equipment that sits for long periods.
Clean and Service Before Storage
Fall is the best time to service a mower, because problems are easier to fix when you're not trying to cut the grass. Disconnect the spark plug wire before working on the deck. Scrape caked grass from the underside to prevent rust, change the oil if the manual recommends it at the end of the season, and replace or clean the air filter. Sharpen or replace the blade so it's ready in spring. Store the mower in a dry place, and remove or maintain its battery if it has electric start.
Get the Snow Blower Ready
While you're working on summer equipment, get winter equipment running. Start the snow blower, check its oil, inspect the shear pins and belts, and buy fresh fuel. Discovering a dead carburetor during the first storm is a common and avoidable frustration.
Pressure Washers, Pumps and Anything That Holds Water
Pressure washers are easy to forget because they spend most of their life in the garage. If yours is stored in an unheated space, water left inside the pump can freeze and crack the pump housing or damage its seals. Disconnect the hoses, run the unit briefly without water to clear the pump as the manufacturer allows, and use a pump protector or pump antifreeze product made for pressure washers. Treat the fuel the same way you would for a mower.
Fountains, birdbaths and water features need attention too. Concrete and ceramic birdbaths can crack when water freezes in them, so empty them, clean them, and store them upside down or indoors. Remove and store fountain pumps, since they can crack if left in freezing water. Rain barrels should be emptied, disconnected from the downspout and turned upside down or stored, and the downspout should be reattached so water drains away from the foundation.
Grills and Propane Tanks
Gas grills handle cold weather well if they're cleaned and protected, and many people grill through the winter. If you're storing one, scrape the grates, burn off residue and clean the grease tray to avoid attracting rodents. Check the burner tubes for spider webs and insect nests, which are a common cause of flare-ups in spring. A fitted cover protects the grill from moisture, but make sure it allows airflow so condensation doesn't cause rust.
Propane tanks should be shut off at the valve and disconnected if the grill is going into a garage or shed. Never store propane tanks indoors, including in a garage, basement or enclosed porch. The National Fire Protection Association and propane industry guidance call for tanks to be stored upright outside in a well-ventilated area away from doorways and ignition sources. Cold weather won't harm a propane tank, though very low temperatures reduce the tank's pressure.
Charcoal grills should be emptied of ash, which absorbs moisture and corrodes the bowl, then covered or stored. Smokers and pellet grills should have their hoppers emptied, since wood pellets absorb moisture and swell, which can jam the auger.
Outdoor Furniture and Cushions
Cushions are the first thing to bring inside. Even weather-resistant fabrics can mildew when they stay damp for months, and freezing moisture can break down foam. Clean them, let them dry completely, and store them in a dry space, ideally in breathable storage bags rather than sealed plastic.
The furniture itself depends on the material. Aluminum and quality resin generally tolerate winter, but covering them reduces cleanup in spring. Wrought iron should be checked for chipped paint and touched up to prevent rust. Wood furniture, especially teak and cedar, benefits from cleaning and a protective finish, and should be stored or covered with breathable covers. Glass tabletops can crack in sudden temperature changes or under heavy snow, so store them indoors if possible. Umbrellas should always come down and be stored dry.
Gutters, Roofs and Drainage
Clogged gutters cause winter problems that extend far beyond the gutters themselves. When leaves block a gutter, water overflows and freezes along the eaves, and in snowy climates that can contribute to ice dams that push meltwater under shingles and into walls. Clean gutters after most leaves have fallen, check that downspouts flow freely, and make sure they discharge water several feet away from the foundation.
Walk around the house and look for low areas where water collects against the foundation, since freezing and thawing can widen cracks over the winter. Trim branches hanging over the roof that could break under ice or snow load. If you have a chimney you'll use this winter, schedule an inspection and cleaning.
Lawn, Beds and Trees
Give the Lawn a Final Push
Cool-season grasses, common across the northern half of the country, benefit from a fall feeding, often the most important fertilizer application of the year. Keep mowing until the grass stops growing, and make the final cut slightly shorter than usual to reduce snow mold. Rake or mulch leaves rather than letting a thick layer smother the lawn. Fall is also a good time to aerate and overseed in many regions, provided you finish early enough for new grass to establish.
Water Before the Ground Freezes
Evergreens, recently planted trees and shrubs lose moisture through winter, and dry roots make them vulnerable to winter burn. Water deeply in the weeks before the ground freezes, especially if the fall was dry. Spread a few inches of mulch around the base of trees and over perennial beds once the ground starts to cool, keeping mulch from touching trunks. Wrap the trunks of young, thin-barked trees if your area is prone to sunscald or deer damage.
Clean Up the Garden
Pull spent annuals and diseased plants, but consider leaving healthy perennial seed heads standing for birds and beneficial insects. Bring clay and ceramic pots indoors, since they absorb water and can crack when it freezes. Drain and store watering cans and drip irrigation lines. Clean, sharpen and oil hand tools before storing them, which prevents rust and makes spring planting easier.
Pools, Hot Tubs and Outdoor Kitchens
Pools and hot tubs have their own detailed winterization steps, including balancing water chemistry, lowering water levels, blowing out lines and installing covers. If you're not confident doing it, a pool service is worth the cost, since a cracked pump, filter or plumbing line can be expensive to fix. Hot tubs that stay in use need a reliable cover and attention during power outages, when water can freeze in the plumbing.
Outdoor kitchens with sinks, ice makers or refrigerators need to be shut off and drained according to the manufacturer's instructions. These lines often run through cabinets exposed on all sides, so they freeze faster than plumbing in a house wall. Unplug outdoor refrigerators that aren't rated for freezing temperatures, and prop their doors open to prevent mildew.
A Weekend Plan That Covers Everything
Spread across two weekends, the whole process is manageable. On the first, handle the equipment: service and stabilize the mower and other small engines, prepare the snow blower, protect the pressure washer, and clean the grill. On the second, closer to the first freeze date, handle the water: disconnect and drain hoses, shut off and drain spigots, winterize irrigation and protect the backflow preventer, empty birdbaths and rain barrels, and bring in cushions and pots. Finish with gutters and a last deep watering of trees and shrubs.
Keep a simple checklist on your phone with dates, so next year's work goes faster. Note where every indoor shutoff valve is, which equipment needed repairs and when the irrigation contractor came out. The cost of all of it, a bottle of fuel stabilizer, a few faucet covers, maybe a sprinkler blowout service, is small compared with a single burst pipe inside a wall. Done right, spring starts with a working mower, a lawn sprinkler that turns on and a dry basement.
