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Frozen Pipes and Winter Water Heat Maintained Exclusions What to Do in the First 24 Hours
A frozen pipe is not just a plumbing problem. It can become an insurance problem within minutes, especially if the home was vacant, the heat was off, or the policy has winter water language that limits coverage.
The first 24 hours matter. What you do during that window can reduce damage, protect your home, and help you explain the claim clearly if you need to call your insurance company.
This guide covers what to do right away, how the heat maintained exclusion can affect a frozen pipe claim, and what steps to document before repairs begin.
Start with safety before you thaw anything
If a faucet stops running during freezing weather, assume a pipe may already be frozen. The pipe might be intact, or it may have split and not leaked yet because the water inside is still frozen.
Before using heat, check for immediate hazards.
Do these first:
Look for standing water
If water is near outlets, wiring, appliances, or a breaker panel, stay out of the area and call a professional.
Turn off electricity if needed
If it is safe to reach the breaker panel and water is close to electrical equipment, shut power off to that area.
Find the main water shutoff
Make sure everyone in the home knows where it is. If the pipe bursts while thawing, you may need to shut off water fast.
Open the affected faucet
Open both the hot and cold sides. This relieves pressure and gives melting water a place to go.
Do not use open flame
Never use a torch, kerosene heater, propane heater, charcoal stove, or any flame to thaw a pipe. These can start fires, damage pipes, or create carbon monoxide risks.
A frozen pipe often forms in a place that loses heat first: an outside wall, garage, crawl space, attic, basement rim joist, or under a kitchen or bathroom cabinet. If one pipe is frozen, check nearby fixtures too.
What to do in the first hour
The first hour is about control. Stop the situation from getting worse before you focus on the claim.
Shut off the water if there is any leak
If you see water dripping, spraying, staining drywall, or pooling on the floor, shut off the main water supply. Do not wait to see if the leak slows down.
After shutting off the main supply:
Open faucets on the lowest level of the home.
Flush toilets once to reduce water in the system.
Put buckets, towels, or pans under active drips if it is safe.
Move furniture, electronics, rugs, documents, and valuables away from wet areas.
If the leak is severe, call an emergency plumber and a water mitigation company. Many insurance policies require the homeowner to take reasonable steps to prevent further damage. Letting water run because you are waiting for an adjuster can create problems later.
If the pipe is frozen but not leaking
If no water is coming out and there is no visible leak, keep the faucet open and begin gentle thawing.
Safe thawing options include:
A hair dryer
Warm towels wrapped around the pipe
A portable space heater placed away from flammable materials
Heating tape approved for plumbing use
Warmer air from the home’s heating system
Start thawing closest to the faucet and work back toward the frozen section. This helps water escape as ice melts.
If the frozen section is inside a wall or ceiling, stop and call a plumber. Cutting into building materials without knowing where pipes and wires run can cause more damage.
The next few hours are for damage control
Once water is stopped or thawing has started, switch from emergency response to proof and prevention.
Insurance claims often turn on details. The more calmly you document what happened, the easier it is to explain the loss later.
Take photos and video before cleanup
Before moving soaked items or removing damaged materials, take photos and video from several angles.
Capture:
The frozen or burst pipe, if visible
Wet flooring, walls, ceilings, insulation, and cabinets
Ice, frost, or snow conditions around the home
Thermostat settings
Furnace or boiler controls
Space heaters or other heat sources in use
Water shutoff valves
Damaged personal property
If the home was unoccupied, document when someone last checked it. If a neighbor, family member, property manager, or caretaker inspected the home, write down the dates and what they observed.
Save damaged parts when possible
If a plumber removes a split pipe, valve, connector, or supply line, ask them to save it. Put it in a bag or box and label it with the date and location.
Do not throw away the damaged part until the insurance company says it is okay. The cause of loss may matter, and the pipe itself can sometimes help answer questions.
Keep receipts from the start
Save receipts for:
Emergency plumbing
Water extraction
Drying equipment
Temporary heat
Hotel stays if the home is unsafe
Materials used to stop further damage
Cleaning supplies
Repairs authorized by the insurer
A claim file does not need to be fancy. A folder on your phone with photos, videos, invoices, plumber notes, and a simple timeline can make a big difference.
How winter water and heat maintained exclusions work
Many homeowners policies cover sudden and accidental water damage from a burst pipe. That does not mean every frozen pipe claim is automatically covered.
Policies often include language about freezing, vacancy, heat, and water shutoff. This is where winter water heat maintained exclusions can become important.
The wording varies by policy and state, but the idea is usually this: if a building is vacant, unoccupied, or unattended during freezing weather, the policy may require the insured to use reasonable care to maintain heat or shut off the water and drain the plumbing system.
Some policies refer to maintaining heat. Some refer to maintaining heat in the building. Others require the water supply to be shut off and the system drained if heat is not maintained. Some include exceptions or different rules for fire sprinkler systems.
Read the policy carefully. The exact wording matters.
Insurance coverage depends on the policy language, the facts of the loss, and state law. This article is general information, not legal or insurance advice.
What “maintain heat” usually means
“Maintain heat” does not always mean the home must be warm and comfortable. It usually means taking reasonable steps to keep the building heated enough to prevent freezing.
Common examples include:
Leaving the thermostat set to a reasonable winter temperature
Keeping the furnace, boiler, or heat pump working
Paying the utility bills
Arranging inspections if the home is vacant
Keeping interior doors open so warm air reaches plumbing areas
Adding heat to vulnerable spaces when needed
Many people use 55°F as a common winter setting for vacant homes, but your policy may not name a specific number. If it does name one, follow that requirement.
What can cause an exclusion issue
A frozen pipe claim can become harder when the insurer believes the loss happened because heat was not maintained or the water system was not protected.
Examples that may raise questions include:
Situation | Why it may matter |
The thermostat was turned off | The insurer may ask whether heat was maintained. |
Utilities were disconnected | No heat may mean the freezing condition was preventable. |
The home was vacant for an extended time | Policy duties may change when a home is vacant or unoccupied. |
The water was left on during a winter absence | Some policies require shutoff and draining if heat is not maintained. |
A furnace failed days before anyone checked the home | The insurer may review inspection history and maintenance records. |
Cabinets concealing plumbing were left closed in an exterior wall | It may support or weaken the argument that reasonable care was used. |
A denial is not automatic just because a pipe froze. A working furnace can fail. A power outage can occur. A pipe in an exterior wall can freeze even when a home is heated. The facts matter.
What to tell the insurance company
If there is damage, notify your insurance company or agent as soon as reasonably possible. Most policies require prompt notice.
When you call, keep the description simple and factual.
Say what you know:
When you discovered the problem
Where the frozen or burst pipe appears to be
What areas are wet
What emergency steps you took
Whether water has been shut off
Whether a plumber or mitigation company has been called
Whether the home was occupied, vacant, or temporarily unattended
How heat was maintained before the loss
Avoid guessing. If you do not know when the pipe froze, say that. If you do not know whether the pipe burst before or after thawing, say that too.
Ask these questions during the claim call
A claim call can feel rushed. Write down the claim number and ask practical questions.
Good questions include:
Does the policy cover emergency mitigation?
Do I need approval before removing wet drywall, flooring, or insulation?
Should I keep damaged pipe sections and materials?
Will an adjuster inspect the property?
What photos or documents should I send?
Are there coverage limits for water damage, mold, additional living expenses, or access repairs?
Does the policy have any freezing, vacancy, or heat maintained conditions?
If you speak with a plumber before calling insurance, ask for a written invoice or report that identifies the pipe location, likely cause, and repairs made. Keep it factual. A plumber’s note that says “pipe split from freezing in exterior wall” is more useful than a vague invoice that only says “repair leak.”
How to reduce damage during the first 24 hours
The first day is also when secondary damage can start. Water trapped in walls, flooring, insulation, and cabinets can lead to swelling, odors, staining, and mold growth.
Remove water you can safely reach
Use towels, a wet-dry vacuum, mops, or buckets if the area is safe. Do not use a household vacuum on water.
Lift wet rugs if they are not stuck to the floor. Move boxes and furniture to a dry area. Put foil, plastic blocks, or wood blocks under furniture legs if the furniture cannot be moved.
Start drying the space
If you have power and it is safe, use fans, dehumidifiers, and heat to begin drying. Open cabinet doors under sinks. Pull back baseboards only if you know how to do it without causing extra damage or if a mitigation professional recommends it.
Do not seal up wet areas. Wet materials need air movement and drying.
Call professionals when water enters walls or ceilings
A small puddle under a sink may be manageable. Water inside walls, ceilings, floors, insulation, or HVAC spaces needs professional attention.
Water mitigation companies use moisture meters and drying equipment to find moisture that is not visible. This matters because a room can look dry while water remains under flooring or behind drywall.
Separate emergency work from permanent repairs
Emergency work stops damage. Permanent repairs restore the home.
Emergency work may include:
Shutting off water
Repairing the broken pipe
Extracting water
Removing saturated materials
Drying the structure
Boarding or temporary protection if needed
Permanent repairs may include:
Replacing drywall
Painting
Rebuilding cabinets
Reinstalling flooring
Restoring trim and finishes
Before starting permanent repairs, ask the insurer what documentation they need. You do not want to remove evidence too soon.
What if the home was vacant or unoccupied
Vacancy and occupancy are not the same thing in insurance policies, and definitions can vary.
A vacant home often means it has little or no personal property and is not being lived in. An unoccupied home may still have furniture and belongings but no one is staying there.
This distinction can matter after a frozen pipe loss.
If the property was empty, for sale, under renovation, inherited, used seasonally, or left during travel, gather proof of how you protected it.
Useful records may include:
Thermostat photos or smart thermostat history
Utility bills showing service was active
Furnace service invoices
Oil, propane, or natural gas delivery records
Texts or emails from people who checked the home
Security camera clips showing visits
Weather alerts or power outage notices
Notes showing water was shut off or drained
If the water was not shut off, be ready to explain why. For example, someone may have stayed there recently, heat may have been running, or a plumber may have advised that the heating system required water service. Keep the explanation factual.
A practical first 24 hours checklist
Use this checklist to stay organized while the situation is stressful.
Timeframe | What to do |
First 15 minutes | Check for electrical hazards, locate the main shutoff, open faucets, shut off water if leaking. |
First hour | Start safe thawing if there is no leak, call a plumber if the pipe is hidden or burst, move valuables away from water. |
Hours 1 to 3 | Take photos and video, document thermostat settings, call the insurance company if there is damage. |
Hours 3 to 8 | Begin water removal and drying, call mitigation help if water reached walls, floors, ceilings, or insulation. |
Hours 8 to 24 | Save damaged parts, collect receipts, write a timeline, confirm next steps with the adjuster. |
Do not let the checklist slow down emergency action. If water is actively flowing, shut it off first.
How to prevent another freeze after the emergency
Once the immediate problem is under control, think about why the pipe froze.
Check for:
Drafts near the pipe
Missing insulation
Gaps around vents, sill plates, or exterior penetrations
Pipes in unheated areas
Closed cabinet doors blocking warm air
A thermostat set too low
Furnace or boiler problems
Power outage vulnerabilities
Simple prevention steps can help:
Keep interior heat on during freezing weather.
Open cabinet doors under sinks on exterior walls.
Let faucets drip during extreme cold if local guidance allows it.
Seal air leaks around pipes.
Insulate pipes in crawl spaces, garages, basements, and attics.
Disconnect garden hoses and close inside hose bib shutoffs.
Know how to shut off water before leaving town.
Have someone check the home during winter absences.
For seasonal homes, rentals, inherited properties, and homes under renovation, ask the insurance agent what the policy requires during winter. Do not assume normal homeowners coverage applies the same way when no one is living there.
The key takeaway for the first 24 hours
A frozen pipe needs two responses at the same time: protect the property and protect the record.
Shut off water if there is a leak. Thaw only with safe heat. Call a plumber when the pipe is hidden, damaged, or hard to reach. Start drying quickly. Take photos before cleanup. Save receipts and damaged parts. Tell the insurance company what happened, but do not guess.
Most of all, look at the policy language about freezing, vacancy, water shutoff, and heat. A winter water or heat maintained exclusion can become one of the most important parts of the claim, especially when the home was vacant or unattended.
The best first day is calm, documented, and focused on stopping damage before it spreads.
Alfred Smith CPCU Claims Services LLC is here to help. Servicing all of Massachusetts (Boston, Fall River, Worcester, Lowell), Rhode Island (Providence, Warwick, Cranston) Connecticut (Hartford, New London, Fairfield), Maine (Portland, Saco).
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