Brick Faces Flaking Off: What to Check Before Sealing the Wall
If pieces of the brick face are flaking off, arrange a masonry assessment before choosing a sealer or cosmetic patch. Surface loss, often called spalling, describes damage rather than identifying its cause. The useful next step is to establish which bricks are affected, what might be contributing to the deterioration, and whether the proposed repair addresses more than appearance.
First, distinguish missing brick from missing mortar
Look from a safe position without scraping or pulling at the wall. Is the missing material on the broad face of a brick, along its edges, or in the joints between bricks? Photograph the whole area and then the individual locations you can reach safely. Give each photograph a simple location label, such as the wall beside the rear entrance.
A useful request is specific: several brick faces below the window have lost pieces, rather than the wall needs waterproofing. Note whether you found fallen fragments and when you first noticed them. If material is falling above a doorway or walkway, keep people away from the affected area and seek prompt professional evaluation. Do not climb up to test loose pieces.
Ask about moisture and earlier repairs, not just winter weather
The National Park Service explains that water unable to escape behind a waterproof coating can freeze and cause masonry to spall. Its cleaning and coating guidance also cautions that some water-repellent treatments can worsen deterioration where salts are present. These are reasons to investigate the wall before coating it, not proof that freezing or salts caused your particular damage.
Mortar compatibility is another question, especially on older brickwork. The NPS repointing brief documents damage where hard, less-permeable mortar was used with soft brick. It also explains how salts crystallizing within masonry can contribute to surface loss. A repair material should be selected for the existing masonry; greater strength is not automatically a better match.
Bring any records of previous repointing, painting, cleaning, or sealing. Tell the evaluator whether the affected area was repaired at a different time from the surrounding wall. The NPS publications focus on historic masonry, so use them as background for questions rather than as a ready-made specification for every modern brick assembly.
Make the evaluation answer three separate questions
Ask what is visibly damaged, what cause or contributing condition is supported by the inspection, and what remains uncertain. Request that these answers be kept separate. A photograph showing missing faces establishes an observation; it does not establish the condition of everything behind the surface.
For the repair recommendation, ask the contractor to identify the particular bricks or areas included and explain why those limits make sense. If replacement is proposed, ask how replacement units will be selected. If a surface repair is proposed, ask what condition makes that treatment appropriate. Avoid choosing solely from before-and-after photographs of unrelated projects.
Also ask who will resolve any associated work outside the masonry scope. An evaluator may identify a separate item for another trade to investigate. Put that handoff in writing so the masonry crew and the owner are not each assuming the other has arranged it.
Give the proposal a clear decision point
Before authorizing work, request a marked photograph or sketch of the agreed repair area. Ask how newly discovered damage will be documented and priced before the scope expands. Specify who receives those findings and who can approve a change, particularly if a property manager and building owner are different people.
Keep a dated copy of the initial photographs with the completed-work record. Ask what follow-up observations the contractor wants reported and who should receive them. This creates a practical reference if another area changes later without promising that a single repair will eliminate every future maintenance need.
Milliken Corporation lists brick and other masonry work among its services and serves residential customers throughout Middle Tennessee. For a home in Gallatin, Nashville, or a nearby community, send the property address, wall location, and photographs when requesting an evaluation. Ask the team to confirm the project fit, including whether specialist assessment is needed for an older or unusually complex wall.
Frequently asked questions
Does flaking brick mean the entire wall must be replaced?
Not automatically. Ask for an assessment of the extent and cause of damage before deciding between localized work and a broader repair. Surface photographs alone cannot establish the complete scope.
Should I buy a clear sealer before the site visit?
Wait until the wall has been assessed. Ask whether a coating is justified for this masonry and what problem it would solve. A clear appearance does not establish suitability.
What if I do not have records of earlier masonry repairs?
Say that the history is unknown. Provide whatever dated photographs or owner records you do have, and ask the evaluator to distinguish observed findings from assumptions about previous work.