Learning how to prepare your home for winter in the USA can save you from a $3,000 burst pipe, a dead furnace on the coldest night of the year, or a heating bill that makes you wince. The best time to start is early fall, before the first hard freeze, when contractors still have open appointments.
This guide walks you through every room and system, room by room, with what to do yourself, when to call a pro, and what each job typically costs. You can use it whether you live in snowy Minnesota or mild Georgia, since even a few freezing nights can cause serious damage in homes that aren’t ready.
When should you start preparing your home for winter?
Start winter home prep in September or October, at least four to six weeks before your area’s first expected frost. Northern states like Michigan, Wisconsin and Colorado should aim for early fall. Southern states can usually wait until late October or early November.
Starting early matters for two reasons. HVAC technicians, chimney sweeps and roofers get booked solid once the first cold snap hits, and prices for emergency calls are much higher than for scheduled visits. You also want time to fix anything an inspection turns up.
How do you get your heating system ready for winter?
To get your heating system ready, replace the air filter, test the thermostat, and book a professional furnace or heat pump tuneup. A tuneup usually costs $80 to $200 and includes cleaning, a safety check and a carbon monoxide leak test. This is the single most important winter prep task.
Replace your furnace filter
A clogged filter makes your furnace work harder and can shorten its life. Check it now and plan to replace it every 1 to 3 months during heating season. Homes with pets, allergies or heavy dust may need monthly changes. Basic filters cost $5 to $15, while higher efficiency pleated filters cost $15 to $40.
Schedule a professional tuneup
A licensed HVAC technician will inspect the burners, heat exchanger, blower motor, electrical connections and venting. Ask these questions when you call:
- Is the tuneup price flat, or does it change if you find a problem?
- Do you check for carbon monoxide leaks and cracks in the heat exchanger?
- Are you licensed and insured in this state?
- Do you offer a yearly maintenance plan?
A red flag: a technician who pushes for a full system replacement on a unit under 10 years old without showing you clear evidence. Get a second opinion before spending thousands. You can compare HVAC companies near you, along with their hours and reviews, on Search Acharya.
Program your thermostat
A programmable or smart thermostat helps you save money without thinking about it. The U.S. Department of Energy says turning your thermostat back 7 to 10 degrees for 8 hours a day can save up to 10% a year on heating and cooling. If you leave home for a trip, keep the heat at 55°F or higher so your pipes don’t freeze.
How do you keep pipes from freezing in winter?
To keep pipes from freezing, insulate exposed pipes, disconnect garden hoses, shut off and drain outdoor faucets, and keep your home heated to at least 55°F. On very cold nights, open cabinet doors under sinks and let faucets on outside walls drip slowly. Pipes in attics, crawl spaces, garages and outer walls are most at risk.
A frozen pipe can burst and release hundreds of gallons of water. Here’s how to protect your plumbing:
- Insulate exposed pipes. Foam pipe sleeves cost $1 to $3 per 6 foot section at hardware stores and take minutes to install.
- Use heat tape on high risk pipes. Self regulating heat cable works well for pipes in unheated crawl spaces. Follow the manufacturer’s directions carefully.
- Disconnect and drain garden hoses. A hose left attached can trap water and crack the faucet inside your wall.
- Shut off outdoor spigots. Turn off the indoor shutoff valve for each outside faucet, then open the outside tap to drain it. Consider frost free hose bibs if you live in a cold state.
- Blow out your sprinkler system. If you have an irrigation system, a professional blowout usually costs $50 to $150 and prevents cracked lines.
- Find your main water shutoff valve. Make sure everyone in your home knows where it is. If a pipe bursts, shutting the water off fast can save you thousands.
If a pipe does freeze, never thaw it with an open flame. Use a hair dryer or space heater, and call a licensed plumber if you can’t reach the frozen section or suspect a crack.
How do you seal drafts and improve insulation?
Seal drafts by adding weatherstripping to doors, caulking gaps around windows, and installing foam gaskets behind outlet covers on exterior walls. Then check your attic insulation, since heat rises and escapes through the roof. Most of these fixes cost under $100 and you can do them yourself in a weekend.
Find where cold air gets in
On a windy day, hold a lit incense stick near window frames, door frames, outlets, recessed lights and attic hatches. If the smoke wavers, you’ve found a leak. Common culprits include:
- Worn weatherstripping around exterior doors
- Gaps where siding meets window and door trim
- Missing door sweeps at the bottom of doors
- Gaps around plumbing and wiring that pass through walls
- An uninsulated attic hatch
Check your attic insulation
If you can see the tops of your ceiling joists in the attic, you probably need more insulation. ENERGY STAR recommends levels from about R30 in warm southern climates to R49 or R60 in colder northern ones [VERIFY for your climate zone]. Hiring a pro to add blown in insulation typically costs $1,500 to $3,500 for an average home, depending on size and location. Some utilities offer rebates, so check with yours first.
Use window kits and draft stoppers
Plastic window insulation kits cost about $10 to $25 and can noticeably cut drafts from older single pane windows. Draft stoppers at the base of doors are a cheap fix for rooms that always feel chilly.
How do you prepare your roof and gutters for winter?
Clean your gutters after most leaves have fallen, check that downspouts drain at least 3 to 5 feet from your foundation, and inspect your roof for missing or damaged shingles. Clogged gutters can lead to ice dams, which force melting snow under shingles and into your home.
Clean gutters and downspouts
Professional gutter cleaning usually costs $120 to $250 for a single story home and more for two or three stories. If you do it yourself, use a stable ladder and have someone hold it. Gutter guards can cut down on future cleaning.
Inspect the roof
From the ground, use binoculars to look for curled, cracked or missing shingles, damaged flashing around the chimney and vents, and sagging areas. A professional roof inspection usually costs $150 to $400. Fixing a few shingles now costs far less than repairing water damage in February.
Trim trees near your house
Heavy snow and ice can snap branches onto your roof, car or power lines. Have overhanging limbs trimmed back before winter. Never trim near power lines yourself; call your utility or a licensed tree service.
What safety checks should you do before winter?
Before winter, test every smoke alarm and carbon monoxide detector, replace batteries, and have your chimney inspected if you use a fireplace or wood stove. Carbon monoxide (CO) is a colorless, odorless gas produced by burning fuel, and winter is when CO poisoning cases rise because homes are sealed up and heaters run constantly.
Test smoke and CO alarms
Press the test button on each alarm. Replace batteries yearly, replace smoke alarms every 10 years, and replace CO detectors based on the manufacturer’s date, often every 5 to 7 years. You should have a CO detector on every level of your home and near sleeping areas.
Get your chimney inspected and swept
The Chimney Safety Institute of America and the National Fire Protection Association recommend a yearly chimney inspection [VERIFY current guidance]. A sweep and inspection usually costs $150 to $400. Creosote buildup inside the flue is a leading cause of chimney fires.
Use space heaters safely
Keep space heaters at least 3 feet from curtains, bedding and furniture. Plug them directly into a wall outlet, never an extension cord, and turn them off when you leave the room or go to sleep.
How do you prepare your home for a winter storm or power outage?
Prepare for a winter storm by building an emergency kit with 3 days of water and food, flashlights, batteries, blankets, a first aid kit and any medications you need. If you plan to use a generator, place it outdoors at least 20 feet from doors and windows, since running one in a garage can cause deadly CO poisoning.
Also stock up on these before the first storm:
- Ice melt or sand for walkways and steps
- A snow shovel or working snowblower (start it now to make sure it runs)
- A battery or hand crank radio
- Phone power banks
- Extra pet food
Winter home prep checklist with typical costs
Costs vary by location, home size and the provider you hire. Here are realistic national ranges to help you budget:
- Furnace or heat pump tuneup: $80 to $200
- Furnace filter: $5 to $40
- Chimney sweep and inspection: $150 to $400
- Gutter cleaning: $120 to $250
- Roof inspection: $150 to $400
- Sprinkler system blowout: $50 to $150
- Pipe insulation (DIY): $20 to $75 for most homes
- Weatherstripping and caulk (DIY): $30 to $100
- Blown in attic insulation: $1,500 to $3,500
When should you call a professional instead of doing it yourself?
Call a professional for anything involving gas lines, furnace repairs, electrical work, roof repairs and tree trimming near power lines. These jobs carry real safety risks and often need a licensed contractor. Simple tasks like changing filters, adding weatherstripping and insulating pipes are safe for most homeowners to handle.
When you hire, always confirm the contractor holds a valid license for your state, carries liability insurance, and gives you a written estimate before starting. Reading recent customer reviews helps you spot companies that show up late or add surprise fees. On Search Acharya, you can browse local HVAC companies, plumbers, roofers and chimney sweeps, then compare hours, phone numbers and reviews in one place.
Frequently Asked Questions
What is the first thing to do to prepare a house for winter?
Start with your heating system. Replace the filter and book a professional furnace or heat pump tuneup before the cold arrives. A working heater protects both your comfort and your pipes.
At what temperature do pipes freeze in a house?
Pipes in unheated areas are at risk once outdoor temperatures drop to around 20°F, especially overnight. Pipes in exterior walls, attics, garages and crawl spaces freeze first. Keeping your indoor heat at 55°F or higher and insulating exposed pipes greatly reduces the risk.
How much does it cost to winterize a house?
Most homeowners spend about $300 to $1,000 on basic winter prep, including a furnace tuneup, gutter cleaning and DIY sealing supplies. Adding attic insulation or roof repairs can raise that total by a few thousand dollars. Costs vary widely by state and home size.
Should I leave my heat on when I go away in winter?
Yes. Keep your thermostat at 55°F or higher while you’re away to protect your pipes. For longer trips, ask a neighbor to check on your home and consider shutting off the main water supply.
How often should a furnace be serviced?
Most HVAC pros recommend servicing a furnace once a year, ideally in early fall. Heat pumps that run all year may benefit from a checkup in both spring and fall. Regular service helps catch safety problems like CO leaks early.
Do I need to winterize my home if I live in the South?
Yes, though your list is shorter. Even a single hard freeze can burst uninsulated pipes in homes built for warm weather, as many Texas homeowners learned during past winter storms. Focus on pipe protection, outdoor faucets and having a backup plan for power outages.
How do I find a reliable HVAC technician near me?
Look for a licensed and insured company with recent positive reviews and clear pricing. Ask whether the tuneup price is flat and what it includes. You can compare local HVAC companies by location, hours and reviews on Search Acharya.