What Are the Common Mistakes When Repointing Brickwork

by | Sep 3, 2025 | masonry

Repointing brickwork restores the strength and appearance of masonry, but when done incorrectly it can cause more damage than good. At North Shore Brickwork in Milwaukee, we often see issues that arise from these common mistakes:

Using the Wrong Mortar Mix
One of the biggest errors is applying mortar that is harder than the original brick. For example, using a strong Portland cement mix on older, softer bricks can cause the bricks themselves to crack instead of the mortar absorbing the stress.

Poor Joint Preparation
Failing to properly remove old mortar before applying new mortar is another frequent mistake. If the joint is not cleaned out to an adequate depth, the new mortar will not bond well and will quickly fail.

Incorrect Mortar Application
Some homeowners simply smear mortar over the surface instead of packing it deep into the joints. This not only looks unprofessional but also leaves voids behind the surface that allow water to penetrate.

Ignoring Color and Texture Matching
Repointing is not just structural—it is also aesthetic. Using the wrong mortar color or texture makes the repair stand out against the original wall, lowering curb appeal.

Skipping Curing and Protection
Mortar needs time to cure. If the joints are left exposed to rain, frost, or direct sun too soon, the mortar may crack, weaken, or fall out.

Conclusion
Repointing may look simple, but it requires skill, the right materials, and attention to detail. At North Shore Brickwork Milwaukee, we ensure proper preparation, mortar selection, and workmanship so your brickwork stays both strong and beautiful for decades.

Need tuckpointing services in Milwaukee? Contact North Shore Brickwork today for a professional assessment.

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About Les O'Hara

Les O’Hara founded North Shore Masonry in April 1978 and has run it since then. The company started with one crew working brick repair in the Chicago suburbs. Today it operates across four markets: Chicago IL, Milwaukee WI, Denton TX, and Fort Wayne IN, with crews that average 15 years of tenure on the company.
Les has personally inspected, scoped, or supervised tens of thousands of masonry projects since 1978. The work spans Chicago greystones and two-flats from the late 1800s, Milwaukee duplexes built with Cream City brick and lime mortar, Denton brick veneer construction sitting on Vertisol clay soil, and Fort Wayne historic district homes and institutional buildings. Each market has its own building stock, its own failure patterns, and its own repair protocols. Les knows them all because he’s spent decades on jobsites in all four.
The work has always been the same: do the job right, build it to last, match the original materials, and back it with a real warranty. That commitment is why the company holds Mason Contractor Association of America (MCAA) certification, why every project carries a 2-year labor and material warranty, and why the company’s average customer rating sits at 4.9 stars across more than 480 verified reviews.
When Les writes on this blog, it’s not marketing copy. It’s 47 years of seeing what fails, why it fails, and what actually fixes it.
Credentials and affiliations:

Founder, North Shore Masonry (since April 1978)
MCAA Certified Member (Mason Contractor Association of America)
47+ years of hands-on masonry restoration experience
Specializes in: tuckpointing, brick repair, chimney restoration, lintel replacement, building facade restoration