Common Brick Repointing Mistakes and How to Avoid Them

Brick repointing might look simple: scrape out the old mortar, fill in the gaps, and call it a day. But ask anyone who’s lived in Queens long enough, and they’ll tell you a bad repointing job can ruin a perfectly good wall. Using the wrong materials or rushing the process can actually speed up brick damage instead of fixing it.

If you’re planning brick repointing Queens work for your property, here are the most common mistakes to watch out for and how to make sure they don’t happen on your project.

1. Using the Wrong Mortar

One of the biggest blunders is applying mortar that’s too hard for your bricks. Many older Queens buildings were built with softer brick and lime mortar that allows walls to “breathe.” When contractors use modern Portland cement mixes that are too rigid, the bricks end up cracking under stress.

Ask your contractor what mix they’re using and whether it matches the original mortar strength. Good pros will test a sample from your wall before deciding on the right formula.

2. Poor Mortar Color Matching

Nothing ruins curb appeal faster than mismatched mortar joints. It might sound cosmetic, but a sloppy color match can make your whole façade look patchy and reduce your building’s value.

Insist on a sample panel before the work begins. Experienced brick repointing Queens contractors will take the time to match color and texture so the new joints blend seamlessly.

3. Grinding Too Deep (or Not Enough)

Mortar should be removed to the correct depth,  usually 2 to 2.5 times the width of the joint. Too shallow, and the new mortar won’t bond properly. Too deep and you risk damaging the brick edges, leaving them weaker.

Ask how deep they plan to grind and whether they use hand tools or grinders with dust control. Precision matters here.

4. Rushing the Process

Repointing takes time, grinding, cleaning, applying mortar in layers, and letting it cure properly. Some contractors rush through to save time, leaving weak joints that start cracking within a couple of seasons.

Choose someone who doesn’t promise “same-day completion” for large areas. A realistic timeline means they’re doing it right, not cutting corners.

5. Ignoring the Weather

Mortar needs the right temperature and moisture levels to cure properly. If it’s too hot, it dries too fast and shrinks. Too cold, and it won’t set at all.

Schedule your project for spring or fall,  the sweet spot for outdoor masonry work in Queens. A good contractor will cover the wall if rain is expected.

6. Skipping Wall Preparation

Mortar won’t stick well to a dirty surface. Dust, loose debris, and even plant growth can interfere with bonding.

Make sure your contractor cleans the joints thoroughly before applying new mortar usually with compressed air or a stiff brush.

7. Forgetting to Check for Structural Issues

Sometimes failing mortar is just a symptom of a bigger problem like foundation settling or water infiltration. Repointing alone won’t fix those issues.

Before you sign a contract, have the wall inspected for cracks, bulging, or water entry points. Address those first if needed.

The Takeaway

Repointing has to do more than filing gaps; it’s about protecting your building for the next few decades. By avoiding these common mistakes, you’ll get work that looks great, lasts longer, and keeps your property safe from water damage.

The best way to protect yourself is to hire a skilled, local expert. Ask questions, review past projects, and don’t be afraid to walk away from someone who seems rushed or vague. The right brick repointing Queens professional will welcome your questions and deliver results you can trust.