DFW & Surrounding Areas
A leaning post is the fault underneath several others on this site. It causes sagging gates, drifting limits and gates that catch — and it is the one that cannot be corrected at the operator.
How we approach gate post leaning
Safety risk
A leaning post is a structural fault carrying a heavy gate. If it has moved noticeably or recently, stop using the gate until it has been looked at.
Some causes of gate post leaning you can resolve yourself in minutes. We would rather you found one than paid us to.
Hold a level against the post in both directions and note how far out it is. Photograph it. This gives us something to compare against next season and establishes whether it is still moving.
A gap between post and soil, a crack radiating through the concrete, or a damp patch that never dries all point at the cause. This is the most informative thirty seconds you can spend.
Watch during rain if you can, or look for staining and silt trails. A downspout, an irrigation head or a driveway that falls toward the post is often the whole explanation.
Right at the concrete line. Flaking, swelling or thinning there means the post is compromised and re-setting it would be unsafe — it needs replacing.
Checked all that and it is still gate post leaning?
Tell us what you found — it shortens the visit.
A gate post carries a large turning force. The weight of the leaf acts at a distance, so the post is constantly being levered over, and everything resisting that lever is below ground: the concrete footing and the soil around it. When a post leans, the steel has almost never bent. The footing has rotated in the ground.
That distinction determines the repair. Straightening the post above ground, packing the gap, or welding a brace onto it addresses none of the cause, because the cause is that the footing is no longer holding. The fix has to happen below grade.
Three things undermine a gate post footing. The first is an undersized footing — too shallow or too narrow for the leaf it carries, which is common where a heavier gate was fitted later or where the original installer sized for a lighter design. The second is water: runoff that collects at the post softens the soil around the footing and lets it rotate.
The third, and the dominant one in this region, is expansive clay. Blackland Prairie clay swells when wet and shrinks when dry, and that cycle works on a footing year after year, opening a gap the footing then settles into. A post that leans a little more each summer is almost always describing that cycle rather than a single event.
Each of these looks different at the gate. The “how to tell” line is what separates it from the one above.
This is the least glamorous and most fundamental repair on this site. Done properly — excavated, re-footed to the right size, drainage corrected — it is permanent. Done cheaply from above ground, it comes back every season, and everything hung on it keeps failing in ways that get blamed on the operator.
Blackland Prairie clay underlies most of Dallas–Fort Worth, and it is among the more expansive soils in the country — it swells measurably when wet and shrinks hard in a Texas summer. A gate post footing sits in that soil being levered by the gate, and the annual wet-dry cycle works it loose a little at a time.
The practical consequence is that gate posts here need deeper and wider footings than the same gate would need on stable ground, and that a footing sized by a generic specification is frequently undersized for this region. It is also why we would rather re-foot properly once than reset the same post every three years, and why drainage away from the post matters as much as the concrete.
Usually yes, but not from above ground. The lean is the footing rotating in the soil, so a durable repair means excavating and re-footing to a size matched to the gate’s weight and leverage. Straightening the post and packing the gap looks fixed and moves again within a season or two.
Almost always the soil. Expansive clay swells and shrinks each year, and that cycle slowly works a footing loose — so the movement accumulates invisibly and then becomes obvious. A particularly dry summer is the usual trigger for a post that had seemed stable.
Generally the leaf is removed or supported while the post is re-footed, yes. That is also the sensible moment to check the hinges, because a leaning post has been loading them unevenly for however long it has been moving.
Those are ways of living with it rather than fixing it. A brace still transfers load into the same footing, and a support wheel changes the load path and usually creates new problems. On a heavy gate we would not recommend either as a permanent answer.
It depends on the gate’s weight, its length and the soil, which is why a single number would be misleading. What we can say is that in this region’s clay, footings need to be deeper and wider than a generic specification suggests, and that an undersized footing is the most common reason we are called back to a post somebody else reset.
Include what you found in the checks above — where it stops, what you heard, whether it moves by hand. It genuinely shortens the visit, and it means we arrive with the right part more often.
We answer the phone 24/7. If you are stuck, call and we will talk you through the manual release before anyone arrives. See what counts as a gate emergency.
