Spring Property Damage Checklist for Ann Arbor Homeowners: What to Inspect After Winter

Introduction

Every Ann Arbor homeowner knows the feeling. The snow finally melts, the temperatures creep above freezing, and you take your first real look at your property after months of Michigan winter.

Sometimes everything looks fine.

Sometimes it does not.

The problem is that winter damage in southeast Michigan rarely announces itself loudly. A slow foundation crack, a hairline split in roof flashing, a patch of condensation mold quietly spreading behind attic insulation — these things develop invisibly while you’re focused on staying warm. By the time spring arrives, the damage is already done. You’re just finding out about it.

This spring property damage checklist is built specifically for Ann Arbor and the surrounding Washtenaw and Livingston County area. Our climate — with its freeze-thaw cycles, heavy snowfall, and rapid spring thaws — creates specific risks that generic home maintenance checklists simply don’t account for. We’ve built this checklist around the damage patterns we see most frequently as a local restoration company that responds to property emergencies across Ann Arbor, Ypsilanti, Plymouth, Saline, Dexter, and beyond.

Work through each section of this spring property damage checklist methodically. Some items you’ll clear in seconds. Others might reveal something that needs immediate attention. Either way, catching problems in April is far less expensive than dealing with them in June after a season of spring rain has turned a small crack into a flooded basement.

Why Spring Is Michigan’s Riskiest Season for Hidden Home Damage

Most homeowners assume winter is when homes take the most punishment. In terms of stress on materials, that’s true. But winter damage often stays hidden until spring gives it the conditions to reveal itself — or to worsen.

Here’s what happens in a typical Ann Arbor winter:

Freeze-thaw cycling puts extreme stress on any material with a small crack or gap. Water enters the crack, freezes, expands by roughly 9%, then contracts again as it thaws. Repeat this dozens of times between November and March and that small hairline crack in your foundation becomes a genuine structural concern.

Ice dams form when heat escapes from your living space through the roof, melts the base of snow accumulation, and that meltwater refreezes at the cold roof edge. The resulting ice dam backs water under shingles and into your attic and walls — often without any visible sign until the snow is gone and you notice a stain on your ceiling.

Snowmelt volume in southeast Michigan can be significant. A wet April following a heavy snow year creates drainage demands that test gutters, downspouts, grading, and basement waterproofing all at once.

Condensation mold develops when warm, moist indoor air meets cold attic surfaces or basement walls throughout winter. By spring, what started as surface condensation may have become active mold growth.

The goal of this spring property damage checklist is to find all of it before warm, humid weather accelerates any damage that’s already underway.

Section 1: Roof and Gutters

Start at the top. Roof damage is the most consequential thing to miss because it allows water to enter your home at the highest point, where it can travel through insulation, framing, walls, and eventually your living space before you notice anything.

What to look for:

You don’t need to climb onto your roof to do a useful inspection — a pair of binoculars from the ground covers most of what you need to see.

• Missing, curled, or cracked shingles. A few missing shingles are common after a Michigan winter with high winds. Each missing shingle is an entry point for water.
• Shingle granules in your gutters. When you flush your gutters with a hose, look at what comes out. A significant amount of granule material means your shingles are degrading and losing their water-shedding ability.
• Sagging or separated ridge line. The ridge of your roof should be straight. Any sagging or waviness suggests structural movement in the roof decking below.
• Flashing condition around chimneys, skylights, and vents. Flashing is the metal barrier that seals the joints between roofing and any vertical surfaces. It’s one of the most common sources of water intrusion and one of the easiest things to miss on a visual inspection.
• Fascia and soffit condition. Look for soft, discolored, or visibly rotted wood along the roof edges. Rotted fascia often indicates that gutters have been holding standing water and backing up against the wood.

Gutters specifically:

Clogged gutters are one of the top contributors to water damage in Ann Arbor homes. When gutters overflow, water saturates the soil directly against your foundation — the worst possible place for it to go.

• Clear all leaf and debris buildup from the previous fall
• Flush gutters with a hose and watch for slow drainage or overflow points
• Confirm that downspouts extend at least four to six feet away from your foundation — not just to the base of the wall
• Check for gutter sections that have pulled away from the fascia or developed visible sagging

If you find damage: Missing shingles and minor flashing issues can often be patched by a roofer relatively inexpensively. What you want to avoid is leaving any opening unaddressed through the wet spring season. If you notice water stains on your ceiling or in your attic, the damage has already progressed beyond surface repair — call a water damage restoration professional to assess what has already gotten wet inside.

Section 2: Foundation and Basement

Your foundation is the most structurally critical part of your home, and southeast Michigan’s soil conditions — particularly the clay-heavy soils common in Washtenaw County — make it especially susceptible to seasonal movement.

Exterior foundation inspection:

Walk the perimeter of your home after the ground has thawed and dried slightly. You’re looking for:

• Horizontal cracks in poured concrete or block foundations. These are more serious than vertical cracks because they indicate lateral pressure from soil movement.
• Stair-step cracks in block foundations, running diagonally along the mortar joints.
• New cracks or widening of existing cracks since last spring. Take a photo each year so you can compare.
• Soil settling or pulling away from the foundation. When soil contracts in winter and expands in spring, gaps can form that direct surface water straight down against the foundation wall.
• Window well conditions. Window wells should have gravel at the bottom for drainage. If they’re holding standing water or debris, they become a direct water entry point.

Basement interior inspection:

This is where you’ll find the clearest evidence of winter water infiltration.

• Look for white, chalky deposits on concrete or block walls — called efflorescence. This is the residue left behind when water moves through the concrete and evaporates. It’s a reliable indicator that water is migrating through your walls.
• Check the floor-wall joint along the entire perimeter. This is a primary entry point for water under hydrostatic pressure.
• Look for rust stains on any metal — floor drains, pipes, anchor bolts. Rust indicates consistent moisture exposure.
• Smell the air. A persistent musty odor in a basement that wasn’t there before is often the first sign of mold growth that isn’t yet visible.
• Inspect stored items. Water stains on cardboard boxes stored on the floor, or rust on the bottom of metal shelving legs, tells a story even when the walls look dry.

What to check around basement windows:

Press your hand against the interior side of any basement window frame. Soft, spongy wood means rot from repeated moisture exposure. Check the sill plate — the horizontal wood member that sits on top of the foundation wall — for the same thing.

If you find water stains, efflorescence, or a musty smell: These are not cosmetic issues. Water intrusion through a foundation needs professional assessment to determine the source and the extent of any moisture damage to framing, insulation, or stored contents. If you’re seeing active mold growth — typically appearing as dark spots on walls or a visible fuzzy texture — do not disturb it. Contact a mold remediation professional for an assessment before attempting to clean anything yourself.

Section 3: Sump Pump

If your Ann Arbor home has a basement, your sump pump is one of the most important pieces of equipment you own. Spring is the single most important time of year to verify it’s working.

The combination of snowmelt, spring rain, and a saturated water table in southeast Michigan puts maximum demand on sump pumps in April and May. This is when failures happen — and a failed sump pump during a heavy rain event can flood a basement in hours.

How to test your sump pump:

• Locate your sump pit (typically a plastic or concrete cylinder set into the basement floor, often in a corner)
• Remove the cover
• Pour a five-gallon bucket of water slowly into the pit
• The pump float should rise with the water level and trigger the pump to run
• The water should drain completely within one to two minutes
• The pump should shut off automatically when the water level drops

If the pump doesn’t activate, runs continuously, makes grinding noises, or fails to clear the water promptly, it needs service or replacement before spring storm season.

Additional sump pump checks:

• Inspect the discharge pipe to confirm it’s not blocked with ice, debris, or animal nesting material
• Confirm the discharge outlet sends water well away from your foundation — not just to the base of your exterior wall
• Test the battery backup if you have one. Many Ann Arbor homeowners learned the hard way during power outages that a primary pump is useless when the electricity goes out during a storm
• Check whether your sump pump has a water alarm — a simple, inexpensive device that alerts you if water reaches a set level in the pit

If your sump pump fails: A flooded basement is a time-sensitive emergency. The first 24 to 48 hours after flooding determine whether you’re dealing with a restoration project or a mold remediation project as well. PuroClean of Ann Arbor responds 24/7 to basement flooding emergencies — call (734) 926-5900 any time.

Section 4: Attic

Most Ann Arbor homeowners don’t visit their attic more than once or twice a year — which means winter damage in attic spaces often goes undetected for months. Spring is the right time to make the trip.

Bring a flashlight and be prepared to move carefully on the joists if you don’t have flooring. Don’t step between joists onto the insulation — you’ll go through the ceiling.

What to look for:

• Water stains on rafters or sheathing. Brown, orange, or dark staining on the underside of your roof decking indicates past or current water intrusion. Fresh stains are the most concerning.
• Daylight where there shouldn’t be any. If you can see outside light coming through your roof decking or around a chimney or vent penetration, water is coming in through the same gap.
• Mold on attic surfaces. Attic mold is extremely common in southeast Michigan and is typically caused by one of two things: a roof leak, or inadequate attic ventilation that allows indoor moisture to condense on cold attic surfaces. It often appears as dark green, black, or grayish staining across the underside of the roof decking and rafters.
• Compressed or wet insulation. Fiberglass insulation that has been wet loses most of its insulating value even after it dries, and is a significant mold risk.
• Blocked or damaged soffit vents. Soffit vents allow outdoor air to flow through the attic, which is essential for moisture management. Blocked vents — common when insulation has been pushed against them — create exactly the condensation conditions that lead to mold.

A note on attic mold:

Attic mold is one of the most frequently mishandled restoration issues in the Ann Arbor area. Homeowners often attempt to bleach or encapsulate mold themselves, which typically spreads spores and creates a larger problem than existed before. If you find significant mold growth in your attic — more than a small localized patch — professional remediation is the appropriate response.

Section 5: Exterior Walls, Windows, and Doors

The building envelope — everything that separates conditioned indoor space from the outside — takes significant abuse over a Michigan winter. Spring is when the cumulative effects become visible.

Exterior walls:

Walk the entire perimeter of your home and look for cracks in siding, gaps at corners and trim joints, and any areas where siding has pulled away from the wall.

• Pay particular attention to the area around window and door frames. These are the most common penetration points for water.
• Check caulking around all exterior penetrations: faucet bibs, electrical outlets, dryer vents, and cable entries. Caulk contracts in cold weather and often cracks or pulls away from the substrate.
• On brick or masonry, look for spalling — the flaking or crumbling of the brick face that results from water freezing inside porous masonry.

Windows:

• Inspect all window glazing and weatherstripping. Compressed or torn weatherstripping is a direct cold-air and moisture infiltration path.
• Check for fogged glass between panes on double or triple-pane windows. This indicates seal failure — the inert gas that provides insulating value has escaped and moisture has entered the space between the panes.
• Look for wood rot on any painted wood window frames, particularly along the bottom sill where water collects.

Doors:

• Test the sweep along the bottom of each exterior door — it should make firm contact with the threshold.
• Check the door frame itself for swelling, sticking, or visible daylight gaps at any point.

Section 6: Crawl Space

If your home has a crawl space rather than a full basement, it deserves its own dedicated inspection. Crawl spaces in southeast Michigan are significantly prone to moisture problems and are often the source of mold issues that eventually spread to living spaces above.

Put on old clothes and a dust mask before entering. Bring a strong flashlight.

What to look for:

• Standing water or water staining on the ground surface or on the piers and beams
• Rust on any metal components — beam hangers, floor joist nails, fasteners — indicating persistent moisture exposure
• Soft or deteriorated wood on sill plates, rim joists, and floor joists — particularly where they meet the foundation wall
• Vapor barrier condition — if you have a plastic vapor barrier on the ground, check for tears, gaps, or areas that have been displaced. A compromised vapor barrier allows ground moisture to evaporate directly into the crawl space.
• Mold or mildew on any wood framing or insulation
• Pest evidence — rodents often use crawl spaces for winter nesting, and their activity can damage vapor barriers, insulation, and sometimes wiring

If your crawl space is vented, check that vents are open (summer condition) and not blocked.

Section 7: Grading and Drainage Around Your Home

This is the item most homeowners overlook entirely — and one of the most important for preventing basement water problems.

Proper grading means the ground immediately adjacent to your foundation slopes away from the house. The standard recommendation is a drop of at least six inches over the first ten feet from the foundation. When soil settles, erodes, or is disrupted by landscaping activity, this slope often reverses — directing surface water straight toward the foundation wall rather than away from it.

Spring grading check:

• Stand at each corner of your home after a rain and observe which direction water runs
• Look for low spots against the foundation where water collects
• Check that any mulch beds against the foundation aren’t holding water against the siding or foundation
• Confirm that downspout extensions are directing water well away from the house and not into areas that slope back toward the foundation

Improper grading is one of the most common and most easily corrected contributors to basement flooding in Ann Arbor homes. Adding soil to re-establish positive slope is a low-cost DIY fix that can prevent thousands of dollars in water damage.

What to Do When You Find Damage

Working through this spring property damage checklist, you’ll likely find items that fall into three categories:

• Monitor and note. Small, stable cracks in the foundation with no evidence of water migration, minor weatherstripping wear, a few missing shingle granules — these warrant attention but aren’t emergencies. Photograph them, note the date, and compare next spring.
• Schedule a repair. Damaged gutters, failed window seals, deteriorating caulking, isolated wood rot on exterior trim — these are straightforward repairs that a general contractor or handyman can address. Get them done before the wet summer season.
• Call a professional immediately. Active water intrusion, visible mold growth larger than a small patch, significant foundation cracking with evidence of water entry, a flooded basement, or any situation where you’re unsure of the extent of damage — these require professional assessment.

When water has already entered your home, time is critical. Mold can begin growing on wet building materials within 24 to 48 hours. Professional moisture detection equipment — thermal imaging cameras, moisture meters, hygrometers — can identify wet materials that look dry to the eye, allowing for targeted drying before mold becomes a second problem on top of the original water damage.

PuroClean of Ann Arbor Is Here for Your Spring Property Concerns

PuroClean of Ann Arbor serves homeowners and businesses across Ann Arbor, Ypsilanti, Plymouth, Saline, Dexter, Brighton, Howell, and all of Washtenaw and Livingston County.

Our IICRC-certified technicians respond 24 hours a day, 7 days a week to water damage, mold remediation, and property restoration emergencies. We work directly with your insurance company and provide detailed documentation throughout the restoration process.

If your spring property damage checklist uncovers water damage, mold, or anything you’re unsure about, call us at (734) 926-5900 for a same-day assessment. We’re here to help you protect your home before small problems become large ones.

Frequently Asked Questions

PuroClean of Ann Arbor provides water damage restoration, mold remediation, and property restoration services across Ann Arbor, Ypsilanti, Plymouth, Saline, Dexter, Brighton, Howell, and surrounding southeast Michigan communities. Call (734) 926-5900 — 24 hours a day, 7 days a week.