The Craft of Brick Repair: The Difference Between a Coverup and a Solution Words: Jason MccoyPhotos: Jason McCoyMore often than not, you can walk up to a wall, observe its condition, and get an entire timeline story. How it was built, how footers were set, and where water is routed. After years in the field, I’ve come to understand that brick repair isn’t maintenance work. Its interpretation. Interpretation of a present issue that needs to be addressed, not just an inevitable symptom of time and deterioration alone.From my perspective, repair is where craftsmanship becomes most visible. Anyone can lay a new brick on a clean slate. But stepping into an existing structure, one that’s been standing for decades, sometimes more than a century, and making it whole again? That takes a different level of attention. Reading the Building Before Touching ItThe most important, and perhaps most overlooked, rule of brick repair is Reading the Building Before Touching It.We see it all too often. A stairstep crack running in the mortar with visible, repeated tuckpointing attempts that only pile atop one another. Cracks in brick that have been sealed or caulked with no knowledge of the cause. Here's the rule: Before a single tool comes out, you ask yourself, "What caused this issue to begin with?" What you'll often find is that the root cause of the issue will not be solved by treating the symptom alone.Stairstep cracks two stories up on a building can be caused by a settling foundation. And a settling foundation will only cause cracks to reappear over and over if a crack is merely tuckpointed and moved on from. Spalling brick can be caused by excessive moisture intrusion and freeze-thaw. This will not be solved by replacing select bricks over and over; the cause of the water intrusion itself must be stopped.A crack isn’t just a crack; it’s a symptom. Spalling isn’t random. It’s a result of something more. Good repair work starts with diagnosis. If you skip that step, you’re not fixing anything. You’re just covering it up.Mortar Matters More Than People ThinkWhen it comes to tuckpointing, one of the most common repairs made to masonry, the biggest misconception I see is that stronger mortar is better. That’s not always true, especially when working with older brick.Historic masonry was built with softer, lime-based mortars. Those mortars were designed to move and breathe with the building. If you come in today and repoint with a hard, modern cement mortar, you can actually do more harm than good. The brick becomes the weak point instead of the joint, and over time, it starts to fail.Matching mortar isn’t just about color; it’s about composition, strength, and permeability. When we repair a wall, we’re trying to recreate the balance that was originally intended.There’s a reason some of these buildings have lasted a hundred years or more. The materials were working together, not against each other.Tuckpointing: True Repair over ShortcutsTuckpointing is maybe the most common masonry repair, and likely the most commonly misapplied.A common mistake seen in tuckpointing is simply “buttering” new mortar over cracked joints. This may improve appearance temporarily, but it doesn’t bond or last. It’s cosmetic, not repair, and will ultimately result in this thin layer of mortar flaking away.Proper tuckpointing requires removing the original mortar to about a 3/4-inch depth, depending on the material. This creates the space needed for new mortar to properly adhere. The joints are repointed and tooled to match the original profile.Done right, tuckpointing blends seamlessly and performs for years. Done poorly, it fails quickly...and shows it.Brick ReplacementSometimes the brick itself needs to be replaced entirely. Like anything else, diagnosis is the first step.Brick replacement can look very different depending on the situation. Maybe you're replacing a dozen spalled bricks in a straight line. Maybe you're replacing multiple cracked bricks in a stairstep pattern. The method you use to execute the brick replacement comes down to the cause and location. But in any case, proper staging and supporting of the wall must be a top-of-mind factor.Another universal rule is that the repair should never be obvious. That means sourcing brick that matches as closely as possible in size, color, and texture. In some cases, reclaimed brick is the best option. In other cases, many mismatches in color have been solved with individual brick staining. Lessons from Historic WorkWorking on older buildings teaches you patience.You start to see how earlier masons approached their craft. The slight variations in joint thickness. The way corners were handled. The subtle irregularities that give a wall its character. These weren’t flaws; they were part of the process.Historic repair work reminds us that brick isn’t meant to be perfect. It’s meant to be enduring.And when we step in to repair those structures, we’re not just fixing damage, we’re continuing a lineage of craftsmanship. There’s a responsibility that comes with that.The Balance Between Old and NewToday’s tools and materials give us advantages that earlier generations didn’t have. We can analyze moisture movement, test mortar composition, and source materials more precisely than ever before.But the fundamentals haven’t changed.Brick repair still comes down to understanding materials, respecting the original construction, and applying skill with intention. The important skill here is knowing how to integrate modern solutions with traditional methods. That balance is where good repair lives. The Lasting Value of Doing It RightUnderstanding the root cause of why a wall is failing is equally important as, if not more important than, how you repair the symptom. If you only treat the visible damage, you’re not repairing the wall; you’re just delaying the problem.Our responsibility is to solve the issue at its source. That means taking the time to read the structure, choose the right approach, and apply the repair with care and precision.When repair is approached this way, the result is more than a fix; it's the solution that means the difference between a lasting structure and one that ultimately needs to be torn down. The building keeps doing what it was meant to do, and the work we leave behind supports it for years to come.About: Technical Talks
