Fastener Replacement
Every exposed screw on a leaking section gets checked. Loose or rusted ones are swapped for oversized fasteners with new sealing washers, driven snug without crushing the washer.
Commercial metal roof repair in Safford for shops, warehouses, and ag buildings. We replace backed-out fasteners, reseal panel laps, treat rust, and fix trim lifted by monsoon gusts.

A metal roof is repairable when the steel is still solid and the leaks come from fasteners, laps, and trim.
Metal roofs tell you where they leak. These four signs inside point to specific parts of the panel roof.
Bright dots line up along the purlins on a sunny morning, usually in rows that follow the fastener pattern.
Fastener holes have widened or washers have cracked. We drive oversized screws with new washers into the same holes and seal any that sit over a lap.
Orange spots appear on machinery, pallets, or the floor below a panel lap, worse after monsoon storms.
Lap tape has dried and water sits inside the lap, rusting the steel. We open the lap, clean the rust, reseal with new tape, and stitch it back down.
Metal-on-metal banging during gusts, or daylight at the top of a wall, points to trim or a ridge cap that has worked loose.
Ridge caps, rake trim, and eave trim lifted by monsoon gusts. We refasten or replace the trim pieces and renew the closures under them.
Insulation facing near an outside wall sags and stains, mostly on the low side of the building.
Water backs up at the eave where end laps, gutters, or eave closures have failed. We reseal the end laps, repair the gutter, and replace wet insulation we can reach.
Most metal roof repairs fall into four kinds of work. Many roofs need two or three of them at once.
Every exposed screw on a leaking section gets checked. Loose or rusted ones are swapped for oversized fasteners with new sealing washers, driven snug without crushing the washer.
Side laps and end laps are opened where the old tape has dried, cleaned of rust, resealed with butyl tape, and stitched back together with lap fasteners.
Surface rust at cut edges, scratches, and screw heads is wire-brushed, primed, and sealed. A panel rusted through gets cut out and replaced with a matching profile.
Lifted trim is refastened, ridge cap closures are replaced, and skylight panels are resealed at their laps or swapped out when the plastic has turned brittle.
Steel panels last a long time when their fasteners and laps stay tight. Repair targets those weak points before rust spreads.
| Metal Roof Repair | New Metal Roof | |
|---|---|---|
| What gets replaced | Fasteners, lap tape, trim, and a few panels | Every panel, trim piece, and closure |
| Inside the building | Work stays on the roof surface | Open panels over stock and equipment during the swap |
| Rust | Caught at the surface and sealed | Old steel removed entirely |
| Best when | Steel is solid under the rust | Panels have rusted through widely |
| Upkeep after | Fastener and lap checks after storms | The same checks on newer panels |
Note which bays show light and when the leaks happen. Call, and we plan the fastener and lap work around your shop hours.
Five steps, starting with the fasteners and laps where most metal roof leaks begin.
Our roofer walks the panel laps and fastener lines, checks trim and ridge caps, and matches rust streaks to the leaks you see below.

Loose, rusted, or tilted screws get marked along the way, so none are missed when the replacement work starts.

Dried lap tape comes out, rust is cleaned, new butyl tape goes in, and lifted trim and closures are fastened back down.

Surface rust is primed and sealed. Any panel rusted through is replaced with the same profile so the laps line up.

Once the work is done, the shop lights go off and we look for daylight along the purlins where the leaks were.

Two other services often work alongside metal roof repair.

Plants and gins with metal roofs add stacks, fans, and running equipment. Industrial roof repair plans the panel work around them.
Industrial roof repair
If water lands far from any loose screw you can find, leak tracing follows it along the purlins back to the lap that let it in.
Commercial roof leak repairFasteners, laps, rust, and storm damage on steel panels.
Fasteners and laps. Watch for screws backed out with cracked or missing washers, side and end laps where the sealant tape has dried, rust bloom spreading from cut edges or screw heads, and ridge caps or trim lifted by monsoon gusts.
The fix is upsized fasteners, resealed laps, and treated rust, with new panels only where the steel has rusted through.
Panels expand in afternoon heat and shrink overnight, and every cycle works the screw in its hole. Over years the hole widens and the washer cracks. Oversized replacement screws grip fresh steel and seal again.
Yes. Standing seam panels hide their clips, so leaks usually come from end laps, penetrations, trim, or a seam bent open. We reseal and recrimp those areas instead of adding exposed screws through the panel.
Yes. Surface rust at cut edges and screw heads is the time to act, while the steel underneath is still solid. Once rust eats through, the panel has to be cut out and replaced.
In many cases. We measure the rib spacing and height and look for a matching profile. When an exact match is unavailable, a short run can be replaced as a section with new laps and trim.
Dents alone often leave a panel watertight. Hail that cracks paint, splits laps, or breaks skylight panels needs repair. The inspection photos separate cosmetic dents from damage that lets water in.
Request a free estimate with the property address. We walk the fasteners and laps, then fix the ones letting water in.