What to Check in Your Home After a Winter Storm

Posted on by msi-admin

Winter storms can leave behind more than snow and ice. Freezing temperatures, heavy snowfall, and thawing conditions often cause hidden water damage that isn’t immediately visible once the storm passes. Many homeowners don’t realize there’s a problem until days—or even weeks—later, when leaks, staining, or mold appear. Taking time to check key areas of your home after a winter storm can help catch water damage early and prevent more serious issues.

Pipes & Water Pressure

Freezing temperatures can stress plumbing systems, especially pipes located in exterior walls, basements, crawlspaces, garages, and other unheated areas.

After a winter storm, pay attention to:

  • Changes in water pressure
  • Unusual noises when water is running
  • Slow leaks around sinks, toilets, or appliances
  • Damp spots on walls or ceilings near plumbing lines

Even pipes that did not fully burst may have small cracks that begin leaking once temperatures rise.

Ceilings & Attic Access

Snow accumulation and freeze-thaw cycles can lead to roof leaks and ice dam formation. Water intrusion from above often shows up first on ceilings or in attic spaces.

Check for:

  • Discoloration or staining on ceilings
  • Peeling paint or bubbling drywall
  • Damp insulation in attic areas
  • Water marks near attic access panels

These signs may indicate slow roof leaks that started during or after the storm.

Basements & Crawlspaces

Basements and crawlspaces are especially vulnerable after winter storms due to frozen pipes, foundation seepage, and melting snow around the home.

Look for:

  • Standing water or damp concrete
  • Musty or damp odors
  • Wet insulation or exposed framing
  • Water around sump pumps or floor drains

Because these areas are often unfinished, moisture problems can go unnoticed without a careful inspection.

Roof Edges & Gutters

Ice dams commonly form along roof edges when snow melts and refreezes. This can force water under shingles and into the home.

After a storm, check for:

  • Large icicles along roof edges
  • Ice buildup in gutters
  • Water stains on exterior siding
  • Drips or leaks near exterior walls

Roof-related water damage often appears inside the home long after the snow has melted.

Why These Checks Matter

Winter water damage is often hidden. Heating systems may dry surfaces while moisture remains trapped inside walls, insulation, and flooring. Without proper moisture detection, damage can continue to spread even after conditions improve. Early identification can help prevent mold growth, structural damage, and costly repairs. Painting over leaks especially on drywall is a mistake that could be costly later, as mold will continue to develop on the backside of the drywall and in the edn require more mold remediation.

When to Call a Professional

If you notice any signs of water intrusion after a winter storm—or if your home experienced frozen pipes, roof snow buildup, or recent thawing—calling a professional promptly allows for quick assessment and documentation. Fast response can make a significant difference in limiting damage and preventing long-term issues. Putting it off for later will only cost more in the long run.

The Bottom Line

Winter storms don’t always cause immediate or obvious damage. Taking the time to inspect key areas of your home after freezing temperatures and snowfall can help catch problems early and avoid bigger issues down the road. When in doubt, a professional inspection can provide peace of mind and ensure hidden moisture isn’t left behind. And when moisture does occur, having proper water damage restoration completed will save you time, money and even larger problems down the road.

Freezing Temperatures and Snow: The Hidden Water Damage Homeowners Miss

Posted on by msi-admin

Over this past weekend, much of the region experienced significant snowfall, with up to 6 inches reported in parts of Philadelphia, Delaware County, Bucks County and Chester County, including West Chester, Newtown Square, Media, New Hope and surrounding communities. While most homeowners were focused on clearing driveways and staying warm, freezing temperatures and heavy snow can quietly cause hidden water damage inside homes—damage that often goes unnoticed until it becomes a much bigger problem.

Winter-related water damage is especially dangerous because it can remain concealed for weeks, slowly saturating building materials and increasing the risk of mold growth and structural damage.

How Freezing Temperatures Damage Plumbing

When temperatures drop below freezing, water inside pipes expands as it turns to ice. This expansion places significant pressure on pipe walls, fittings, and joints—particularly in exterior walls, basements, crawlspaces, garages, and other unheated areas.

Even if a pipe does not fully burst, freezing conditions can cause small cracks or weakened joints that begin leaking once temperatures rise and the ice melts.

Common Areas Where Winter Water Damage Occurs

Freezing temperatures and heavy snowfall often lead to water intrusion in places that are not immediately visible. During inspections, these are some of the most common areas where winter-related water damage is found:

  • Plumbing lines located in exterior walls
  • Basement ceilings and walls below bathrooms or kitchens
  • Crawlspaces and rim joists
  • Garages and unheated utility rooms
  • Attics affected by snow melt and ice dams
  • Ceilings below roof valleys, chimneys, and flashing areas
  • Areas near exterior hose bibs and shutoff valves

These locations often allow water to spread behind finished surfaces, making damage difficult to detect without proper moisture testing.

Why Burst Pipes and Leaks Aren’t Always Obvious Right Away

Many homeowners expect winter plumbing failures to cause immediate flooding, but most winter-related leaks are far less dramatic. In many cases, water escapes slowly and travels into wall cavities, under flooring, or above ceilings.

Because cold weather can limit evaporation, moisture often remains trapped, allowing damage to progress quietly before any visible signs appear.

Snow Melt, Ice Dams, and Hidden Roof Leaks

Heavy snowfall—such as what we saw this weekend—can also create water damage from above. As snow melts and refreezes, ice dams can form along roof edges, preventing proper drainage.

When this happens, water can be forced beneath shingles and roofing materials, entering attics and wall cavities. This type of damage often goes unnoticed until staining or mold becomes visible weeks later.

Why Water Damage in Winter Often Goes Unnoticed

Cold temperatures can give homeowners a false sense of security. Heating systems may dry the surface of materials while moisture remains trapped deeper inside walls, insulation, and subfloors.

Without professional moisture mapping, hidden water damage can remain present long after the weather improves.

How Undetected Moisture Leads to Mold Growth

Once temperatures stabilize and indoor conditions warm up, trapped moisture creates an ideal environment for mold growth. Mold does not require standing water—only sustained moisture and organic materials.

This is why mold problems frequently appear weeks after a winter leak, long after the initial event has been forgotten.

When to Call a Professional After Freezing Temperatures or Snowfall

If your home experienced frozen pipes, water pressure changes, roof snow buildup, or recent thawing—especially after this weekend’s snowfall—it’s important to have the property evaluated.

A professional inspection can identify hidden moisture, document damage for insurance purposes, and help prevent long-term mold and structural issues.

The Bottom Line

Freezing temperatures and snowstorms do more than impact travel and utilities. They can quietly damage plumbing systems, roofs, and building materials, leading to hidden water damage that worsens over time.

Addressing potential issues early—before mold or structural damage develops—can save homeowners significant time, expense, and frustration.

Water Backup Insurance Coverage – What’s Covered and What’s Not

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When it comes to protecting your home, water damage is one of the most common — and costly — risks. While many homeowners carry insurance, there’s a specific type of protection that often goes overlooked until it’s too late: water backup insurance.

At MSI, we regularly help clients who discover the hard way that their standard policy doesn’t cover sewer backups or sump pump failures. Here’s what every homeowner should know about this critical coverage, what’s included, what isn’t — and how to protect yourself from a very unpleasant (and expensive) surprise.

What Is Water Backup Insurance?

Water backup insurance is an optional endorsement — not typically included in standard homeowners policies. It covers water damage resulting from:

  • Sump pump failures
  • Water backing up through sewers or drains
  • Some types of localized sewer line issues

However, there’s a catch: If the source of the backup is outside your property line — such as a municipal sewer blockage in the street — most policies will not cover the damage. This exclusion is particularly common in row homes or urban areas, where backups often originate in the shared city sewer system.

What It Typically Covers

If your water backup coverage is triggered, it generally pays for:

  • Emergency water extraction and cleanup
  • Sanitizing and mold prevention
  • Repairs to walls, flooring, and structural materials
  • Replacement of damaged personal items (furniture, electronics, clothing, etc.)

Some policies include coverage for sewer backups — but only if the issue is proven to originate on your property. Coverage will not apply if the root cause lies beyond your home’s plumbing system.

What It Doesn’t Cover

Many homeowners are shocked to learn that their water backup coverage has strict exclusions. Most policies will not cover:

  • Flooding from outside sources (requires flood insurance)
  • Municipal sewer system blockages (common in city row homes)
  • Gradual seepage through foundation cracks
  • Damage due to lack of maintenance or neglect

Even if your basement floods with sewage or gray water, your claim can be denied if the cause traces back to a public line or an unmaintained pump.

Coverage Limits Are Often Too Low

Even if you have water backup coverage, you may not have enough.

Most policies cap this endorsement between $5,000 and $10,000. While that may sound sufficient, keep in mind that this amount must cover:

  • Emergency mitigation
  • Structural repairs
  • Drying and sanitizing
  • Mold remediation
  • Personal content replacement
  • Labor and material costs

In today’s market, a serious backup can easily exceed $10,000 in total costs. If you have a finished basement, home office, or expensive electronics in the affected area, the gap between what’s covered and what’s lost can be substantial.

Common Misconceptions

There are a few frequent assumptions that leave homeowners exposed:

  • “My homeowners insurance covers sewer backups.” → Not by default. This requires the water backup endorsement.
  • “Flood insurance covers everything.” → It only covers external flooding — not interior plumbing or sewer backups.
  • “$10,000 in coverage is enough.” → Maybe for minor incidents, but not for full basement reconstruction and content loss.
  • “Sump pump failure won’t happen to me.” → They fail more often than people think, especially during heavy rain or power outages.

Why This Matters in PA, NJ, and DE

Our region is especially prone to water backup problems for a few reasons:

  • Older city infrastructure leads to frequent sewer overloads
  • Tight row home construction increases the chance of backups from neighboring lines
  • Heavy seasonal storms overwhelm sump pumps and storm drains
  • Finished basements are common, increasing the financial impact of a backup

We’ve responded to countless calls from homeowners who had insurance but not the right kind, or not enough of it. In most cases, just a small change in their policy would have saved them thousands.

How Homeowners Can Protect Themselves

Here’s what we recommend:

  • ✅ Confirm you have water backup coverage — don’t assume.
  • ✅ Ask your agent to explain what’s excluded (especially sewer line origins).
  • ✅ Increase your coverage limit — ask for $25,000 or more if you have finished spaces.
  • ✅ Install a battery backup sump pump — essential during power outages.
  • ✅ Use check valves to prevent backflow through drains.
  • ✅ Regularly inspect plumbing and drainage systems for wear and blockages.
  • ✅ Keep valuables off the floor and use shelving in basements.
  • ✅ Document your belongings in case of future claims.

MSI Can Help

At MSI, we specialize in water damage restoration — including sewage and drain backups. When disaster strikes, we respond quickly to extract water, sanitize the area, prevent mold, and rebuild. We also help homeowners document losses and navigate insurance claims to ensure they receive the compensation they deserve.

If you’ve had a backup or just want to prepare for the worst, contact MSI today. We’ve seen firsthand how devastating these events can be — and how much worse it is when insurance doesn’t come through.