Foundation and wall crack repair in San Angelo, TX

Injection ports set in a line down a concrete foundation crack sealed under epoxy paste

Cracks are how a house tells you something moved. Filling them changes the message without changing the fact, which is why the order matters: work out whether the movement is ongoing, deal with that if it is, and repair the cracks afterward.

That said, not every crack means trouble. Hairline cracks in drywall tape, fine cracks along mortar joints and shrinkage cracks in a slab that appeared in the first year or two are usually cosmetic. The pattern is what distinguishes them from the ones that matter.

Where cracks are structural, sealing has a second job beyond appearance: keeping water out. Water moving through a crack in a slab or a foundation wall attacks reinforcing steel and softens the soil right where it should be firmest.

Why this comes up so often in San Angelo

The reason cracks show up so readily on San Angelo houses is that the ground itself is doing the same thing on a larger scale. The USDA description of the Tobosa clay mapped near San Angelo records cracks 0.3 to 1 inch wide reaching 20 to 60 inches down, staying open 210 or more cumulative days a year. When the soil supporting one part of a slab opens up like that and the soil under another part does not, the concrete between them takes the difference — and concrete answers that by cracking.

Ground and climate facts on this page come from the USDA Natural Resources Conservation Service Official Soil Series Descriptions for the Tobosa, Lipan and Angelo series (all three mapped in Tom Green County) and from NOAA climate normals for San Angelo.

How the work actually goes

Read the pattern before touching anything

Direction, width, location and whether it is still moving. Diagonal cracks from the corners of doors and windows, and stair-step cracks through brick mortar, indicate movement. Fine vertical drywall cracks usually do not.

Find out whether it is still moving

Measured floor elevations and, where useful, monitoring a crack over time. A stable old crack and an actively widening one need completely different responses.

Fix the cause first if there is one

If the house is moving, that gets addressed before cosmetic repair. Otherwise the repair fails and takes your confidence in the contractor with it.

Seal properly, not with caulk

Structural cracks in concrete are repaired with epoxy or polyurethane injection that fills the full depth and bonds. Surface caulk hides a crack and lets water keep working behind it.

Masonry and drywall made good

Brick and mortar repointed to match, drywall taped and finished, once the structure underneath is settled.

What this costs

These are national market figures, published so you can tell whether a quote you receive is in a sane range. They are not San Angelo prices and they are not a quote for your house. Your own price is put in writing after somebody has measured your floors.

Crack repair alone is at the low end of foundation work — Angi's national data puts most foundation projects between $2,225 and $8,135, with simple crack sealing well below that range.
Where cracks are a symptom of movement, the underlying repair is the real cost: leveling runs $1,500 to $10,000 and pier work $1,200 to $3,000 per pier.
Which is why the measured evaluation comes first. It is free, and it decides which of those two situations you are in.

Cost figures from Angi's national foundation repair cost survey and HomeGuide's pier and beam repair cost data. See the full cost breakdown →

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What are you seeing?

Cracks in a wall, brick or the slab Doors or windows sticking Floors sloping, sagging or bouncy Slab foundation — piers or leveling Pier and beam — leveling or repair Water pooling against the house An evaluation or second opinion Not sure yet — I'd like it looked at

How soon do you want it looked at?

As soon as possible In the next 1–3 months 3–6 months out Just getting it assessed

Where is the house?

Street or neighborhood

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Questions people actually ask

Crack repair — questions people ask

Which cracks should actually worry me?

Width and direction. Cracks wider than about a quarter inch, diagonal cracks running away from the corners of doors and windows, stair-step cracks through brick mortar, and any crack that is visibly wider than it was six months ago. Fine vertical cracks in drywall and hairline cracks in mortar are usually cosmetic.

Can I just fill them myself?

For cosmetic drywall cracks, yes — filler and paint is the whole job. For a crack in a slab or a foundation wall, a hardware store filler seals the surface and leaves the depth open, so water keeps moving through it and the crack keeps working. Worth finding out which kind you have before spending a Saturday on it.

The crack keeps coming back after I patch it. Why?

Because the house is still moving. A patch is rigid and the movement is not, so the crack reopens along the same line. Recurring cracks in the same place are one of the more reliable signs that there is an active foundation problem rather than a cosmetic one.

Do cracks always mean foundation repair?

No, and that is worth hearing plainly. Plenty of houses have cracks that have not changed in twenty years and need nothing but filler. The measurement is what tells you which you have, and it costs you nothing to find out.

Other work