How to Inspect Exterior Brick Damage Safely

A small gap in mortar can look like a cosmetic issue from the driveway. After one Northwest Suburbs winter, however, that opening can admit water, freeze, expand, and loosen more brick around it. Knowing how to inspect exterior brick damage helps you catch early warning signs before a targeted repair turns into a larger masonry restoration project.

A homeowner inspection is not meant to replace a professional structural evaluation. It is a practical way to monitor your exterior, document changes, and recognize when brickwork, a chimney, or a wall needs experienced attention. The goal is simple: find evidence of water movement, mortar failure, and shifting masonry without putting yourself at risk.

Start With a Safe, Consistent Walkaround

Choose a dry day with good daylight. Walk the property slowly, beginning at one corner and moving around the entire house in the same direction. Stand back first, then move closer. A phone camera, flashlight, notepad, and a pair of binoculars are usually enough for a useful ground-level inspection.

Do not climb onto a roof, lean a ladder against a chimney, or pull at loose brick. Chimneys and upper-story walls can have damage that is not obvious from below, and a loose unit may be less stable than it appears. Photograph concerns from several angles instead. Taking photos from the same locations once or twice a year also makes it much easier to tell whether a crack or deteriorating joint is changing.

Pay particular attention after winter, following a severe storm, or after you notice water indoors near a fireplace, exterior wall, or window. Illinois freeze-thaw cycles are especially hard on brick and mortar because moisture repeatedly expands inside small openings.

How to Inspect Exterior Brick Damage From a Distance

Your first view should be from across the yard or driveway. Look for areas that no longer appear flat, straight, or consistent with the rest of the wall. Brick masonry should generally form orderly horizontal courses and vertical lines. A section that bulges, bows, leans, or seems to push outward needs prompt professional review.

Cracks deserve a closer look, but their direction and location matter. A thin, isolated line may be a minor age-related issue. Stair-step cracks following mortar joints, long vertical cracks, or widening cracks near corners, doors, windows, and foundations can point to movement. Cracks through the faces of multiple bricks, rather than only through mortar, are more concerning because the brick itself has lost integrity.

Look at the chimney separately from the house walls. Because it rises above the roofline and receives more rain, snow, and wind exposure, it often deteriorates faster. From the ground, check whether the chimney appears plumb, whether its top courses are intact, and whether there are missing bricks or open joints around the stack. A leaning chimney, fallen masonry, or visibly separated brickwork should not wait for a routine appointment.

Examine Mortar Joints Up Close

Mortar is often the first part of a masonry wall to show wear. It is designed to protect the edges of the brick and manage minor movement, but it does not last forever. Look for joints that are recessed, sandy, cracked, soft, or missing in spots. You may notice mortar granules on the ground below a wall or chimney, particularly after rain.

Use a visual check rather than aggressively scraping the joints with a screwdriver or other tool. Poking can dislodge weak mortar and does not tell you why it failed. If joints are visibly open or crumbling, tuckpointing may be needed to remove failed mortar to the proper depth and replace it with a compatible mix.

Compatibility matters. Mortar that is too hard for older brick can create a new problem by forcing moisture and stress into the brick face. Correct repair work considers the age and character of the masonry, the original joint profile, and a color match that preserves the appearance of the home. A patch that looks noticeably different or is improperly tooled can affect both weather resistance and curb appeal.

Check for Brick Spalling, Flaking, and Crumbling

Inspect individual bricks for faces that are peeling, popping off, or turning powdery. This damage is called spalling, and it commonly occurs when brick absorbs moisture that later freezes. Deicing salts, poor drainage, and repeated water exposure can make it worse.

A few damaged bricks in a low-splash area may be isolated, but widespread spalling is a sign to investigate the moisture source. Check whether gutters overflow above the damaged section, downspouts empty beside the foundation, sprinkler heads strike the wall, or snow piles against the brick for extended periods. Replacing brick without correcting the water issue can lead to the same failure again.

Also look for white, chalky residue on the brick. This is often efflorescence, mineral deposits left behind when water moves through masonry and evaporates. Light efflorescence can be temporary, especially on newer work, but recurring deposits indicate ongoing moisture movement. It is a clue, not a diagnosis. The surrounding mortar condition, drainage, and signs of water inside the home help determine how serious it is.

Inspect Vulnerable Areas Around Openings and Water Paths

Not every part of a brick exterior weathers at the same rate. Focus your closer inspection on locations where water enters, collects, or is redirected.

• Check below windows, at brick sills, and around doors for cracked joints, staining, or loose lintel areas.

• Look beneath rooflines, gutters, and downspouts for wash marks, green growth, or eroded mortar.

• Inspect the first few courses above grade for spalling from splashback, soil contact, and salt exposure.

• Review steps, retaining walls, parapets, and chimney shoulders, where horizontal surfaces can hold water.

Steel lintels above windows and doors need special attention. When a lintel rusts, it expands and can push the brick above it upward or outward. Watch for a horizontal crack above an opening, displaced brick, orange rust staining, or a gap that follows the line of the window. This is not a cosmetic repair. Left untreated, lintel deterioration can compromise the masonry supported above it.

At the base of the wall, keep soil, mulch, and landscaping from covering brick or blocking drainage openings. Brick that stays wet near grade is more vulnerable to deterioration. If exterior grade has risen over time, a masonry professional can help evaluate whether it is contributing to moisture issues.

Distinguish Surface Wear From Structural Warning Signs

Some exterior brick damage can be repaired in a limited area. A few failed mortar joints, isolated spalled units, or minor efflorescence may respond well to focused restoration once the cause is addressed. The right scope depends on the condition of the surrounding masonry, not just the most visible spot.

Other signs call for faster action. Contact a qualified masonry contractor promptly if you see a wall bulging or leaning, a chimney separating from the home, bricks that are loose enough to move, large or growing cracks, major mortar loss, or brick falling onto walkways or roofs. If you also notice interior wall cracks, sticking doors or windows, water intrusion, or fireplace and chimney concerns, the inspection should consider the whole assembly rather than one exterior symptom.

For a chimney, do not assume the problem is limited to the visible brick. Damaged crowns, flashing, caps, liners, and firebox components can all contribute to moisture entry and safety concerns. A certified chimney inspection is appropriate when masonry damage appears around a working fireplace or when there has been a chimney leak, storm event, or prolonged lack of maintenance.

What to Document Before Requesting an Estimate

Clear information helps a masonry specialist assess the situation efficiently. Photograph the damaged area from a distance and close range, note when you first noticed it, and record whether it changes after rain or winter weather. Include photos of nearby gutters, downspouts, windows, or roof intersections if they may be directing water toward the masonry.

Avoid applying caulk, paint, waterproof coatings, or store-bought patch material before the cause is understood. These products can trap moisture, conceal developing damage, and make a proper repair more difficult. Waterproofing has a place in certain masonry systems, but it should be selected for the wall's condition and vapor-management needs, not used as a quick cover-up.

For homeowners in Arlington Heights and surrounding Northwest Suburbs, a professional evaluation should explain what failed, why it failed, and whether the repair requires tuckpointing, brick replacement, lintel work, chimney restoration, or drainage corrections. Durable work should also respect the original brick appearance and use mortar suited to local weather exposure.

Brickwork protects your home quietly for decades when water is kept under control and small failures are repaired early. A careful seasonal walkaround gives you the information to act before the next freeze turns a manageable concern into a more costly repair.