Brick Foundation Wall Repair: Repointing, Rebuilding & Costs

Brick Foundation Wall Repair: Repointing, Rebuilding & Costs

How do you repair a brick foundation wall? It depends on the damage: deteriorated mortar joints get repointed (old mortar ground out and replaced), cracked or spalled bricks get replaced individually, and walls that are bowing, leaning, or crumbling get partially or fully rebuilt. In the Shreveport area, repointing a foundation wall typically costs a few hundred to a few thousand dollars, while partial rebuilds run $5,000 to $15,000+ depending on how much wall is involved.

The short version: most brick foundation walls need repointing — not rebuilding. If the bricks themselves are solid and the wall is still straight, fresh mortar joints restore the wall for a fraction of replacement cost. Rebuilding is only necessary when the wall is moving, bowing, or the bricks are failing throughout.

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What Brick Foundation Wall Repair Involves

A brick foundation wall is really two materials working as one: the bricks carry the load, and the mortar joints hold them together and keep water out. When a wall needs repair, the question is always which of the two has failed. Nine times out of ten in older Shreveport homes, it is the mortar. Decades of moisture, minor settlement, and our expansive clay working against the wall wear the joints down long before the bricks give out.

Brick foundation walls are common in the older neighborhoods of Shreveport — Highland, South Highlands, Queensborough, and parts of Broadmoor have hundreds of homes sitting on brick piers or full brick foundation walls from the early-to-mid 1900s. Many are still doing their job. When they need help, the fix ranges from a mason’s repointing work over a few days to a structural rebuild. Our wall repair service page covers how we evaluate which one your wall needs.

Repointing vs. Rebuilding: Which Do You Need?

This is the decision that determines whether your project costs hundreds or thousands, so it is worth understanding clearly. Here is how the two compare:

Factor	Repointing	Rebuilding
What it fixes	Deteriorated, crumbling, or missing mortar joints	Bowing, leaning, collapsed, or structurally failed walls
Typical cost	$500–$3,000 per section	$5,000–$15,000+ per section
How long it takes	1–3 days	1–3 weeks
Bricks reused?	Yes, all of them	Sometimes; often new brick or block
Structural change	None — restores the existing wall	Wall is dismantled and reconstructed
When it is enough	Wall is straight, bricks are solid, joints are failing	Never — this is the last resort

The rule of thumb: if the wall is straight and plumb and the bricks are intact, repointing is the answer. If the wall is moving — bowing inward, leaning, or stair-stepping apart — new mortar will not hold it, and you are looking at rebuilding, possibly with additional stabilization. A mason or foundation contractor can tell you which camp you are in within minutes of seeing the wall.

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What Brick Foundation Wall Repair Costs

Here is what Shreveport-area homeowners typically pay for each level of brick foundation wall work. As always, these are ranges — wall height, length, access, and how much of the wall is affected all move the number:

• Spot repointing (small areas): $300–$800. A few square feet of bad joints, often around a crawl space vent or where a downspout used to dump water.
• Full-wall repointing: $1,500–$4,000 per wall side. Grinding out old mortar and packing in new across an entire foundation wall.
• Individual brick replacement: $25–$75 per brick installed, or $500–$2,000 for a section with widespread spalling (flaking, crumbling faces).
• Crack stitching / wall ties: $1,000–$3,000. Helical ties or stitching bars that knit cracked sections back together without rebuilding.
• Partial wall rebuild: $5,000–$12,000. Taking down and rebuilding a failed section, often with improved drainage behind it.
• Full wall rebuild: $10,000–$25,000+. Rare for residential, but necessary when an entire wall has failed.

Two cost drivers surprise people. First, access: a wall buried behind a deck or under a tight crawl space costs more to work on than an exposed one. Second, matching: century-old brick has a size, color, and texture that modern brick does not, and sourcing matching brick for visible walls takes time and money. For retaining walls rather than foundation walls, our retaining wall repair guide for Shreveport covers the different forces and fixes involved.

Why Brick Foundation Walls Fail

Brick walls do not fail randomly. In northwest Louisiana, the same handful of causes accounts for nearly every failing brick foundation wall we see:

• Water, water, water. Mortar is porous. Decades of rain splash, poor grading, and missing gutters saturate the joints, and each wet-dry cycle weakens them a little more. In winter, trapped moisture can freeze and pop the mortar apart.
• Expansive clay soil pressure. The clays under Shreveport swell when wet and push laterally against foundation walls. Over decades, that pressure bows walls inward — the classic failure mode for older brick and block walls.
• Settlement. When one section of the foundation settles more than the rest, the rigid brick wall cannot flex. It cracks in the familiar stair-step pattern that follows the mortar joints.
• Age of the mortar. Lime-based mortars used before the 1930s are softer than modern cement mortar. They served well for a century, but a hundred years of weather eventually wins.
• Vegetation and roots. Ivy, shrubs planted against the wall, and tree roots all hold moisture against the brick and can physically wedge joints apart.
• Previous bad repairs. Hard modern mortar smeared over soft old brick traps moisture inside the brick instead of letting it breathe, accelerating spalling. Matching mortar type to the wall’s age matters.

The LSU AgCenter’s resources on Louisiana soils at lsuagcenter.com explain the clay expansion cycle that drives so much of this damage — useful context if your wall is bowing and you want to know why.

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The Repair Process, Step by Step

Knowing what happens during the work helps you judge whether a contractor knows what they are doing. Here is how a proper repointing job unfolds — the most common brick foundation wall repair:

Step 1: Assessment and mortar matching

The contractor inspects the wall for structural movement first — repointing a moving wall is wasted money. Then the old mortar is analyzed so the new mix matches its hardness and composition. This step is what separates real masons from handymen with a bag of premix.

Step 2: Grinding out the old joints

Failed mortar is cut or ground out to a consistent depth, usually about an inch, without damaging the brick faces. Dust control matters here, especially for interior crawl space walls.

Step 3: Cleaning and dampening

The joints are brushed clean and the wall is lightly dampened so the old brick does not suck the moisture out of the new mortar before it cures.

Step 4: Packing and tooling the new mortar

Fresh mortar is pressed firmly into the joints in layers and tooled to a neat profile that sheds water. Rushed, shallow packing is the most common shortcut — and the reason some repointing jobs fail in a few years.

Step 5: Curing and cleanup

The wall is kept damp for several days while the mortar cures. Then the site is cleaned and the drainage or grading issue that caused the damage gets addressed — because new mortar in front of the same water problem is just a slower repeat.

For rebuilds, the process is more involved: temporary support for the structure above, careful dismantling, new footing work if the old one failed, and reconstruction — often with block or new brick and proper waterproofing and drainage behind the wall. The InterNACHI standards at nachi.org describe what proper masonry and foundation evaluation looks like.

Keeping a Repaired Brick Wall Healthy

A repaired wall can last decades — but only if the conditions that damaged it change. This is the maintenance list that protects the investment:

• Manage water aggressively. Gutters, downspout extensions, and grading that slopes away from the wall. This one item prevents more repeat damage than everything else combined.
• Keep vegetation off the wall. Trim shrubs back at least a foot, pull ivy, and do not let mulch pile against the brick.
• Inspect the joints yearly. A quick walk-around each spring: look for crumbling, missing, or recessed mortar and white efflorescence stains that signal water movement.
• Fix small problems early. A few bad joints are a $300 spot repair. The same joints ignored for five years become a $3,000 wall.
• Do not paint brick foundation walls. Standard paint traps moisture inside the brick. If the wall must be coated, use a breathable masonry coating — or better, leave it bare.

Block foundation walls fail for similar reasons but get different fixes — our cinder block foundation wall repair guide covers those. And any structural wall work worth doing should come with a real warranty behind it: qualifying repairs from Pelican carry a 20-year structural warranty, because a wall repair should outlast the problem.

Frequently Asked Questions

How much does it cost to repoint a brick foundation wall?

Spot repointing of small damaged areas typically costs $300 to $800. Repointing an entire foundation wall side usually runs $1,500 to $4,000 depending on the wall’s length, height, and how deteriorated the joints are. Access and mortar matching can move the price within that range.

Can you repair a brick foundation wall yourself?

Small, non-structural repointing is a possible DIY project if you research mortar matching and technique. But anything involving a bowing, leaning, or cracked-through wall is structural work — get a professional assessment first, because repointing a moving wall wastes your money and hides a growing problem.

How long does repointed mortar last?

Properly done repointing with correctly matched mortar typically lasts 25 to 50 years. The biggest factor in how long it lasts is water management — joints protected by good drainage and gutters far outlast joints that stay wet.

What causes brick foundation walls to bow inward?

Lateral soil pressure, usually from expansive clay that swells when wet. Poor drainage makes it worse by keeping the soil saturated. Bowing walls need structural stabilization — wall anchors or a rebuild — not just repointing, because the wall is moving.

Is a cracked brick foundation wall serious?

It depends on the crack. Hairline cracks in mortar joints from minor settlement are often just repointed and monitored. Wide cracks, stair-step cracks that keep growing, or cracks with displacement (one side higher than the other) signal structural movement and need professional evaluation.

Should I seal or waterproof my brick foundation wall?

Waterproof coatings can help on the exterior below grade, but never trap moisture inside the wall with non-breathable sealers. The most effective “waterproofing” for a brick foundation wall is almost always exterior: grading, gutters, and drainage that keep water away in the first place.

How do you match old brick for a foundation wall rebuild?

Salvage yards and specialty suppliers carry reclaimed brick in older sizes and colors. A good mason will source the closest match and blend it so the repair does not stand out. For walls that are mostly hidden, like crawl space walls, matching matters less and modern brick or block is often used.

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Get a Free Wall Inspection in Shreveport

Crumbling mortar, stair-step cracks, or a wall that is starting to bow — whatever your brick foundation wall is doing, the first step is an honest assessment of whether it needs repointing, stabilization, or rebuilding. Our free inspection gives you that answer in writing, with a quote and no obligation.

Call Pelican Foundation Repair at (318) 585-2003, or visit Pelican Foundation Repair to schedule. We serve Shreveport and the surrounding areas — see our full service area list — and you can browse all of our foundation repair services to compare wall repair with piers, crack repair, and drainage options.

Pelican Foundation Repair 6118 Fairfield Ave, Shreveport, LA 71106, USA 318-585-2003 https://foundationrepairshreveport.com/