Pergola Repair: Leaning Posts, Loose Beams and Weathered Wood
By Jeff Rabkin, JustFix Wood · Published October 14, 2026
A pergola that leans or shakes in the wind usually comes down to one or two problems you can fix. You rarely need to tear the whole thing down.
Post bases first
Most pergola trouble starts where the posts meet the ground or the deck. Wood posts set in soil or concrete rot at grade. Posts on surface brackets can loosen, or the anchors can rust. If the pergola leans, I check every post base before anything else.
A rotted post can often be cut off above the rot and set in a raised standoff base, or replaced outright while the top is temporarily supported.
Beam and rafter connections
Pergolas move in the wind. Over the years, bolts loosen, screws back out and notched joints open up. I tighten or replace the hardware and add structural screws or brackets where a connection is weak.
Bracing
Many pergolas were built without enough knee braces at the post tops. A few well-placed braces can stop the wobble for good.
Weathered rafters and slats
Top slats take the most sun and water. Cracked or soft ones can be swapped individually. Keep in mind that new wood takes a season to weather to match.
When to replace
If most of the posts are rotted and the beams are soft too, a new pergola may make more sense. I'll tell you which side of that line yours is on.
Send photos of the whole pergola, each post base, and a close-up of any loose joint. Text them to 612-382-1306.
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