Sticking Doors & Windows · Boerne, Kendall County

Sticking doors and windows in Boerne

A door or window that sticks in a Boerne house usually means one small area lost bearing, not that clay heaved the whole slab. The ground is the reason. The soil series on record for Boerne is Oakalla, a loamy bottomland alluvium with a linear extensibility of 2.6 percent, which the survey classes as low shrink-swell. Eckrant, Anhalt and Comfort soils are present too, on the shallow stony ground around town. None of it is the deep swelling clay that walks a whole slab up and down with the rain gauge. So the useful question here is not what the weather did to the soil. It is which piece of ground under that corner stopped holding.

THE BOERNE READ · FOUR THINGS TO CHECK BEFORE YOU CALL ANYONE

1

How many, and where

Usually one or two in Boerne, sharing a wall or a corner. A whole house going tight at once is the clay-belt pattern, and that ground is down the corridor.

2

Does a crack leave that corner

A door binding at its top corner with a diagonal crack out of that same corner is one area telling you the same thing twice.

3

Rock, or placed fill

On a cut-and-fill pad the uphill half sits on native rock, the downhill half on material a builder put there. The sticking shows up over the placed side.

4

Only in August

The series on record here, Oakalla, is low shrink-swell, so a Boerne door that frees itself by October is more likely swollen wood than moving ground.

Why Boerne movement stays local

Shallow soil over limestone does not give a slab much to ride on, and that cuts both ways. There is not enough depth of swelling material to lift or drop a house evenly across its footprint, which is the good news. The flip side is that anything on the pad which is not native rock becomes the weak point all by itself. A fill pocket. A utility trench backfilled loose. The downhill half of a cut-and-fill pad, where the builder made the ground instead of finding it. Those pieces can consolidate, and they are small, so what they move is small.

That is why this symptom looks the way it does up here. One door. Sometimes two in the same wall, or a door and the window beside it. A door is the most sensitive instrument in the house, because a frame has to go only slightly out of square before the latch stops finding the strike plate. In Boerne that makes a sticking door a pointer at a specific piece of dirt, which is why it earns a measurement rather than a plane.

Looking up at a white panel door with a gap standing open across its head and a crack in the tan wall above the frame corner
A gap stands open the full width of this door head, and the wall above the frame corner has cracked. The door kept its shape. The opening did not.

The crack that leaves the same corner

A frame that has gone slightly out of square breaks at a corner, and the drywall above the opening gives up at the same place. So a diagonal crack rising out of the top corner of a binding door is the second reading of one measurement. Two instruments, one cause, one small area. That pairing is the strongest signal a Boerne homeowner can bring us. We cover what those wall cracks mean by themselves in the guide to diagonal cracks above doors and windows, and the geometry of why a racked frame pinches at a corner rather than along an edge is on the sticking doors and windows page.

What is specific to this town is where that corner tends to sit. On a slope-cut lot it is usually the downhill side, over the placed fill, and the water story is normally standing right next to it: a gutterless Hill Country roofline dumping at the foundation line, a patio or pool that changed where runoff goes, a downspout aimed at one spot. The wider picture, drainage and slope and fill across the whole town, is on our Boerne foundation repair page. This page stays with the doors.

Diagonal crack running out of the corner of an interior door frame
A diagonal crack leaving a door frame corner. When the door binds at that same corner, one small area is reporting twice.

Windows carry one extra suspect

Windows rack on the same geometry as doors, with one complication worth ruling out first. Aluminum frames expand in heat, so a window that is tight at four on an August afternoon and glides at eight the next morning is answering the sun, not the slab. Time it on two different days before reading anything into it. The windows that matter are the ones binding at the same corner in every season.

Outside, Boerne's stone and stucco report the same movement in their own handwriting. Cracks step through the mortar beside a window jamb, trim separates at a top corner, and the weather seal opens along with the latch. Reading the outside wall under a sticking window tells you whether one opening is unhappy or a whole corner is.

Separation gap opening at the top corner of an exterior door frame trim
Separation gap at the top corner of exterior door trim. A racked frame breaks the weather seal as well as the latch.

Piers reach rock quickly here

When the measurements justify support, Boerne has a real advantage over the clay belt. Competent rock is close to the surface on most of this ground, so a pier drives to refusal fast and the repair stays under the area that moved instead of running a whole perimeter. Pier lines here are often shorter than homeowners expect. We install steel piers and hybrid piers only, at $600 to $1,000 per pier; concrete piers are not something we offer. The piers carry a lifetime transferable warranty, and we return for a performance follow-up inspection every year.

About a third of the time there is nothing to fix

Roughly a third of our inspections end with no repair needed, and in Boerne that share earns its keep, because the geology argues against clay heave anyway. The door was swollen wood. The window was thermal. The hinge screws had backed out of soft old jamb framing. Or the movement is real but finished long ago and has been quiet since, which the measurements show. There is also the Boerne answer: sometimes the fix is drainage, moving water off the fill side, and piers would chase what the water already did. You get that verdict in writing, dated.

What the free inspection measures

The visit starts at the openings you flagged. An ICC-certified inspector reads each one for square, top corner down to the strike plate, then shoots floor elevations through the house so those openings can be laid over the real shape of the slab. On a cut-and-fill lot the map usually settles it in one look, because the low ground stops where the native rock starts. Sit over a genuine low area and you get a scope and a firm price for that area alone. Sit over nothing and we tell you so, at no charge. Book the free inspection, or read what the inspection covers first.

A door binding at its top corner with a crack leaving that same corner is worth measuring. The survey is free and we are up the hill weekly.Book the Free Inspection

Straight answers

Boerne door and window questions, answered straight.

Usually not. Oakalla is the series mapped for Boerne, and its linear extensibility of 2.6 percent puts it in the low shrink-swell class, so there is not much underfoot that swells and shrinks a whole slab the way Blackland clay does down the corridor. Eckrant, Anhalt and Comfort soils are present around town as well, on ground that is shallow and stony over limestone. A sticking door in Boerne is far more often one small area that lost bearing, which is why an elevation survey settles it faster than the weather forecast does.
Because movement on shallow soil over rock tends to stay local. Half a cut-and-fill pad can sit on native rock while the other half sits on placed material, and only the placed side can consolidate. Door frames share the walls they are nailed to, so when one area drops, every frame above it racks together. The doors on that side act up as a group while the rest of the house keeps working fine.
It can be. Rule out the metal first. An aluminum frame grows in the heat, so a window that drags on a hot west-facing afternoon and runs clean before breakfast is reporting the sun. Check it again on a cool morning before you count it as evidence. What earns a measurement up here is a window binding at one corner in every season, with a crack out of that corner and the stone or stucco outside breaking along the same line. On ground this shallow that pairing points at one patch of made fill, not at a whole house on the move.
The survey sets that, not a phone call, but Boerne pier lines are often shorter than homeowners expect. Competent rock is close to the surface here, so piers reach refusal quickly and the scope tends to stay under the one area that moved instead of running a whole perimeter. Steel and hybrid piers are the only two we set, priced at $600 to $1,000 per pier. The warranty on them is lifetime and transferable, and a performance follow-up inspection comes around once a year after that.

One sticky door, one corner. Measure it before you plane it.

A free floor elevation survey shows whether your Boerne door sits over a real low area or over nothing at all. On this ground, no repair needed is a common and legitimate answer.

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