Water damage can happen suddenly. A pipe bursts. A washing machine overflows. A water heater fails. Heavy rain sends water into the basement. A toilet backs up. A roof leak appears during a storm. No matter how it starts, the first 24 hours after water damage are critical.

What you do during that first day can help reduce damage, protect your safety, and make the restoration process smoother. At ServiceMaster National Capital Restoration, we help homeowners throughout the DMV respond to water damage emergencies quickly and correctly. Our IICRC-certified technicians understand how water moves through a home, how quickly materials absorb moisture, and what steps are needed to help prevent further damage.

This guide explains what to do during the first 24 hours after water damage and when to call for professional help.

Step 1: Make Sure the Area Is Safe

Before you try to clean anything, make sure the area is safe. Water damage can create serious hazards, especially when electricity, contaminated water, or structural damage may be involved.

Do not enter the affected area if:

• Water is near electrical outlets, cords, appliances, or panels
• The ceiling is sagging
• The floor feels soft or unstable
• You smell gas
• The water may contain sewage
• The water came from outside flooding
• You are unsure where the water came from

If there is standing water near electricity, stay out of the area and call the appropriate utility or emergency professional. If you smell gas, leave the property immediately and contact the gas company or emergency services.

Your safety comes first. Belongings and building materials can be restored or replaced. People and pets should be protected first.

Step 2: Stop the Water Source if You Can

If it is safe, stop the source of the water. The longer water continues to flow, the more damage it can cause.

Depending on the situation, this may mean:

• Turning off the main water supply
• Shutting off the water valve behind a toilet
• Turning off the valve to a sink or appliance
• Stopping the use of a leaking appliance
• Placing a container under an active roof leak
• Calling a plumber for a burst pipe or supply line failure

If you cannot stop the source safely, call a professional right away. In many water damage situations, a plumber may be needed to repair the source before restoration work can fully begin.

Step 3: Identify the Type of Water

Not all water damage is the same. The source of the water affects how the cleanup should be handled.

Water damage is often grouped into three general categories:

• Clean water: Water from a supply line, sink, or appliance supply line may start as clean water.
• Gray water: Water from appliances, shower drains, or certain toilet overflows may contain contaminants.
• Black water: Water from sewage backups, floodwater, or drain backups may contain harmful bacteria, viruses, or other contaminants.

Even clean water can become more contaminated over time as it contacts building materials, dirt, or other substances. If you are unsure what type of water is involved, avoid contact and wait for professional evaluation.

This is especially important with sewage backups, toilet overflows, stormwater intrusion, and basement flooding. These situations should not be treated as simple cleanup jobs.

Step 4: Protect People, Pets, and Belongings

Once the area is safe and the water source has been stopped, focus on protecting people, pets, and important belongings.

If it is safe to enter the area, you can:

• Move people and pets away from wet areas
• Move important documents to a dry location
• Remove small valuables from affected rooms
• Lift curtains or fabric away from wet flooring
• Move light furniture if it can be done safely
• Place foil or wood blocks under furniture legs if available
• Remove dry items from nearby areas before water spreads

Do not carry heavy wet items by yourself. Wet carpet, boxes, furniture, and stored belongings can be heavier than they look. Avoid lifting anything that could cause injury.

Step 5: Take Photos and Videos

Before major cleanup begins, take photos and videos of the visible damage. This can help document what happened and may be useful for your insurance claim.

Try to capture:

• The source of the water if visible
• Standing water
• Wet flooring
• Damaged walls or ceilings
• Affected furniture
• Damaged belongings
• Water stains
• Appliance failures
• Any visible structural concerns

Do not put yourself in danger to take photos. Documentation is helpful, but safety matters more.

Step 6: Call Your Insurance Company

If you plan to file a claim, contact your insurance company as soon as possible. Every policy is different, and coverage depends on the cause of the water damage, your policy terms, and the specific details of the loss.

When you call, ask:

• Whether the loss may be covered
• What claim number you should use
• What documentation they need
• Whether an adjuster will be assigned
• Whether emergency mitigation can begin
• What steps they expect you to take to prevent further damage

Most insurance policies require homeowners to take reasonable steps to reduce additional damage. That often means calling a professional restoration company quickly for water extraction, drying, and cleanup.

Step 7: Call a Professional Water Damage Restoration Company

Water damage restoration is more than removing visible water. Professional restoration includes moisture detection, extraction, drying, dehumidification, cleaning, and documentation.

ServiceMaster NCR provides 24/7 water damage restoration throughout the DMV. Our IICRC-certified technicians can assess the damage, identify hidden moisture, set up drying equipment, and help prevent the problem from getting worse.

Professional restoration is especially important if:

• Water affected more than one room
• Water reached walls, ceilings, or flooring
• Carpet or padding is wet
• Hardwood flooring is involved
• The water may be contaminated
• The water came from a sewer or drain backup
• The basement flooded
• You see or smell mold
• The property is a condo, rental, or commercial space
• You need documentation for insurance

The sooner professional drying begins, the better the chance of reducing secondary damage.

Step 8: Avoid Common Mistakes

In the stress of the moment, many homeowners try to clean up water damage on their own. Some steps can help, but others can make the situation worse.

Avoid these common mistakes:

• Do not use a household vacuum to remove water
• Do not enter standing water near electricity
• Do not assume the area is dry because the surface looks dry
• Do not use household fans if the water may be contaminated
• Do not leave wet carpet padding in place
• Do not ignore moisture behind walls or under flooring
• Do not paint over water stains before the area is dry
• Do not wait several days to call for help
• Do not assume a small leak cannot cause mold

Water damage can hide in places you cannot see. Professional moisture detection helps confirm what is actually wet.

Step 9: Understand What Professionals Will Do

When ServiceMaster NCR arrives, our team starts by evaluating the situation and creating a plan for mitigation. The exact process depends on the source of water, the amount of damage, and the materials affected.

The restoration process may include:

• Inspecting the affected areas
• Checking moisture levels
• Identifying the water category
• Extracting standing water
• Removing unsalvageable materials
• Setting up drying equipment
• Monitoring drying progress
• Cleaning and sanitizing affected areas
• Addressing odors
• Documenting the work performed

Our goal is to reduce further damage, help protect the property, and guide you through the next steps.

Step 10: Watch for Hidden Moisture

One of the biggest risks after water damage is hidden moisture. Water may remain trapped even after the floor feels dry.

Hidden moisture can be found:

• Behind drywall
• Under baseboards
• Beneath hardwood floors
• Under tile or vinyl flooring
• Inside cabinets
• In insulation
• In ceiling cavities
• In crawl spaces
• Behind built-in shelving

If hidden moisture is not addressed, it can lead to mold growth, odors, material breakdown, and future repairs. This is why professional drying and monitoring are so important.

Step 11: Know When Mold Becomes a Concern

Mold can become a concern when moisture is left untreated. Warm temperatures, humidity, and wet materials can create conditions where mold may grow. In the DMV, summer humidity can make moisture problems even more urgent.

Signs that mold may be developing include:

• Musty odors
• Discoloration on walls or ceilings
• Persistent dampness
• Increased allergy-like symptoms indoors
• Warped materials
• Peeling paint or bubbling drywall

The best way to reduce mold risk is to dry affected materials quickly and properly. If you already see or smell mold, avoid disturbing it and call a professional.

Step 12: Keep Records of the Process

During the first 24 hours, keep a simple record of what happened and what actions were taken. This can help you stay organized during the restoration and insurance process.

Helpful records include:

• Date and time the damage was discovered
• Suspected cause of the water damage
• Photos and videos
• Insurance claim number
• Names of people you spoke with
• Receipts for emergency expenses
• Notes from restoration professionals
• Copies of reports or documentation

ServiceMaster NCR can also document affected areas, moisture readings, equipment placement, drying progress, and materials removed.

What Not to Throw Away Right Away

It may be tempting to throw away damaged items immediately. Before discarding belongings, take photos and check with your insurance company or restoration team.

Items that may need documentation include:

• Furniture
• Rugs
• Electronics
• Appliances
• Personal belongings
• Stored items
• Business property
• Building materials

If items are contaminated or unsafe, they may need to be removed quickly, but documentation should still be completed when possible.

The First 24 Hours Matter

The first 24 hours after water damage can shape the entire recovery process. Quick action can help reduce damage, protect your home, and make the insurance process more organized.

The most important steps are:

• Stay safe
• Stop the water source if possible
• Avoid contaminated water
• Document the damage
• Call your insurance company
• Call a professional restoration company
• Begin water extraction and drying quickly

You do not have to manage the situation alone. ServiceMaster NCR is available 24/7 to help homeowners throughout the DMV respond to water damage emergencies.

Call ServiceMaster NCR for 24/7 Water Damage Help

If your home has water damage, ServiceMaster National Capital Restoration is ready to help. Our IICRC-certified technicians provide water extraction, drying, cleanup, and restoration support for homeowners throughout the DMV.

Call 866.867.3123 for 24/7 emergency water damage restoration.