Fence repair in Detroit for heaved posts, dragging gates and storm damage

Read the damage before deciding what to fix

A fence that looks bad in one spot often has its cause somewhere else. A gate that will not latch may simply hang from a leaning hinge post. A bowed section may hide a post that rotted through underground while the visible wood still looks fine.

Walk the whole line slowly. Push each post at chest height and feel for movement at the base. Sight down the top rail to see where it dips. Check the ground around each post for cracked concrete, washed-out soil, or mulch piled against the wood. Note which way a lean goes, since a lean with the prevailing wind tells a different story than one toward a downhill slope. Photos of each problem area help a contractor price the visit.

Rot at the ground line, the most common wood fence failure

Wood posts rarely rot deep underground or high in the air. The decay concentrates in a narrow zone right around grade, where moisture lingers and air still reaches the wood, which is exactly where decay fungi thrive. A post can look solid at eye level and snap off at grade the first time wind loads the fence.

Several habits speed it up: a concrete collar poured flush with the soil that holds water against the wood, flower beds or mulch heaped against the post, sprinklers wetting the same posts every morning, and lumber treated for above-ground use rather than ground contact. Push a screwdriver into the post right at the soil line. If it sinks in easily, that post is on borrowed time. One rotted post usually gets replaced or sistered; when most posts on a run are going soft together, the original build shared a weakness. How each species and treatment ages is on the wood fence page.

Frost heave in clay: why posts rise a little every spring

Heavy clay drives a lot of fence trouble in southeast Michigan. Wet clay expands as it freezes, and as frost works downward through a winter, that frozen layer clamps onto the post or its concrete and jacks it upward. When the ground thaws, the post never settles all the way back. A little higher each year, it eventually loosens enough to lean or tips the rails out of level.

The signs are a post sitting higher than its neighbors, a growing gap under the boards, footings poking above grade, and a top rail that humps over one post. Short footings that flare wider at the top are the worst offenders, because the frost has a lip to push against. The fix is resetting the post below the depth winter frost reaches in your yard; the local building department sets that figure. Steering downspouts and sprinkler spray away from the fence line also means less water in the clay to freeze.

Leaning sections and what usually causes them

A lean is a symptom, not a diagnosis. Straightening a post without fixing the cause buys a season or two at most. The usual culprits:

• A rotted or heaved post that no longer holds its footing
• Wind pushing on a solid privacy section whose posts are too shallow or too far apart
• Tree roots levering a footing over, or a trunk that has grown into the fence
• Soil washed away on a slope or along a drainage swale
• Driveway or street plow snow piled against the fence all winter
• A vehicle or mower that nudged a post and loosened it

Sistering, resetting or replacing a post

When one post is the problem, there are three honest ways to deal with it, and a good contractor will explain which one they picked and why.

1. Sistering: a new treated post or a steel repair bracket is set right beside the damaged post and bolted to it. The panels stay in place. It suits a post whose exposed length is solid while just the buried end has given out, as long as you can live with the doubled appearance.
2. Resetting: the post is dug out, the old footing broken up, and the same post set again at proper depth. It suits a heaved post that is otherwise healthy, common with steel and vinyl posts that do not rot.
3. Replacing: the neighboring panels are detached, the failed post is pulled along with its concrete plug, and fresh lumber or steel is set in its place. It is the most thorough fix and the right one when the post is rotted, split or bent, but it disturbs the most fence.

Sagging and dragging gates

A gate that scrapes the ground, has to be lifted to latch, or swings open by itself is one of the most common repair calls. The cause is almost always one of four things: a leaning hinge post, a frame racked out of square, hinges pulling loose from softening wood, or frost raising the ground under the swing path.

Check the hinge post with a level first. If it leans, no work on the gate itself will hold until the post is reset or braced. If the post is plumb but the far corner has dropped, an anti-sag kit with a cable and turnbuckle can pull the frame back into square. Loose hinges get moved to fresh wood with longer exterior screws or through-bolts, and latches are often simply moved to match where the gate now sits. A sagging pool gate that no longer closes and latches by itself is a safety problem, not a cosmetic one, and belongs at the top of the list.

Broken rails, split pickets and failed fasteners

Rails tie the posts together and carry the boards, and they tend to split where they meet the post, especially when they were toe-nailed rather than set in a bracket or notch. Pickets crack from impact, a string trimmer, or years of drying and soaking. Fasteners rust out fastest near the street, where salt spray reaches the fence each winter.

A broken rail is usually replaced in place, often with metal brackets at each end so the new joint is stronger than the old one, and split pickets get swapped one at a time. The awkward part of wood repair is color: new boards will not match a fence that has weathered for years, so they get stained to blend or the section gets cleaned and refinished.

Wind and storm damage after a Michigan summer storm

Summer thunderstorms and straight-line winds flatten more fence in one afternoon than anything else. Solid privacy fences act like a sail, so the tallest, longest and most exposed runs go first, and falling limbs account for most of the rest.

Before anything is moved, photograph the damage from several angles for your own records and any claim you may file. Keep kids and pets away from split posts, exposed nails and sharp wire. The repair then replaces the broken posts and sections and checks the posts on either side that took load as the section came down.

Stretched or torn chain link, and cracked vinyl

Chain link and vinyl fail in their own ways, and both are usually repairable section by section.

• Torn chain link: the damaged piece is cut out and a matching piece is woven in by twisting a single strand through both edges, so the splice is hard to spot.
• Stretched fabric from a jumping dog or a fallen branch: pulled tight again with a stretcher bar and come-along, then re-tied to the rail and line posts.
• Bent top rail: the kinked length is cut out and replaced, joined with a sleeve.
• Popped tension bands and missing ties: cheap parts, but once they go the fabric sags and pulls away from the posts.
• Cracked vinyl: cold makes vinyl less forgiving, so a snowblower or a chunk of ice can crack a rail or picket in winter. Damaged pieces slide out and get replaced if the profile is still made, though a new part may not match an older, sun-faded shade.

Temporary stabilization until the repair visit

A damaged fence still has a job to do, especially if it holds in a dog or surrounds a pool. A few short-term steps keep it standing and the yard secure:

• Prop a tipping post with a board run diagonally down to a stake pounded deep into the yard, fastened with screws at each end.
• Strap a loose panel to the next solid post with a ratchet strap rather than nails.
• Chain a gate that will no longer latch, and keep pets leashed in the yard until it closes properly.
• Prop a sagging gate on a block so it stops tearing out its hinges.
• Pick up broken boards with exposed nails and keep loose wire off the lawn.

The repair-versus-replace decision

There is no set age at which a fence stops being worth repairing. The useful question is how much of the structure is still sound, since that is what the repair builds on. Repair makes sense when problems are isolated to a few posts, a gate or one storm-damaged section. Replacement starts to look smarter when:

• More than a few posts are rotted or heaved, pointing to a weak original setting method
• Rails and boards are softening along most of the run, not just one spot
• The fence no longer does what you need, such as privacy height or a pool barrier
• Replacement parts for the vinyl or ornamental profile are no longer made
• The repair cost is approaching a large share of what a new fence would run

When a repair turns into a new fence

If the decision tips toward replacement, the fence installation page covers how a new fence gets built from the line down. Rust and repainting on iron and steel front-yard fences are on the ornamental steel fence page, and framework details for wire fencing are on the chain link fence page. To see how repair needs differ between older city lots and newer subdivisions, look through the communities we cover, including Livonia and Royal Oak.

Fence repair in Detroit for heaved posts — common questions

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