Window Leak Repair in Caledonia, MI

A leaking window is never just the window. The stain on the drywall, the peeling sill paint, the musty corner — those are symptoms of a water path that usually starts above or around the opening, at failed flashing or seals, and runs inside the wall before it shows. In Caledonia, the pattern is intensified by two forces: open subdivision lots that give wind a clear run at every exposure, and freeze-thaw that opens the small gaps in caulk and seals each winter — on windows both old and new.

Water Damage Pros US connects Caledonia homeowners with vetted Michigan crews that trace the leak to its true entry point, repair it properly, and restore the water damage it already caused — drying, treatment, and finish work in one response.

Where Window Leaks Actually Start

• Failed head flashing. The metal flashing above the frame directs rain out and away — when it fails or was installed wrong, water pours behind the trim.
• Deteriorated caulk joints. Perimeter caulk cracks and separates under thermal cycling — Michigan’s freeze-thaw guarantees it.
• Frame rot. Older wood frames that have absorbed water for decades eventually let it through, typically at sill corners.
• Installation gaps. Newer windows leak where flashing and sealing were missed during installation — the first big storm finds them.
• Wall cavity paths. Water entering at siding or above finds the window opening as the easy interior route.

The Repair Sequence

1. Trace the entry. Hose testing and cavity inspection distinguish a window problem from a wall problem — fixing the wrong point wastes the whole call.
2. Stop the water at the source. Flashing repaired or replaced, seals rebuilt, sill corrections made.
3. Open the cavity. Wet drywall and insulation inside the reveal are removed and the cavity is dried — the damage you see is the damage that matters least.
4. Treat and restore. Mold treatment where growth has started, framing dried and treated, then new drywall, tape, and finish.
5. Verify. Water testing after repair confirms the leak is gone before finishes go back.

Window Leak Signs and Their Sources

Symptom	Likely Source	Risk If Ignored
Stain at the top corner	Head flashing failure	Rot in header framing
Water at the sill after rain	Seal or sill slope	Sill rot spreading into jamb
Peeling paint below the window	Water running down the wall	Hidden cavity mold
Fogged double-pane glass	Seal failure in the unit	Reduced insulation, unit replacement
Stain when snow melts	Ice dam drainage	Ice dam recurring every winter

Caledonia Window Realities

• Open-lot wind. New subdivisions give storms long runs — windward elevations leak first.
• New-window leaks. Installation-era gaps surface in the first years — often correctable under warranty with proper documentation.
• Village-era frames. Older homes carry original wood windows — repair preserves what the house has where it can be saved.

Why Caledonia Calls Us

• Diagnosis before repair — the actual entry point is found, not assumed
• Cavity drying and mold treatment included, not just the cosmetic patch
• Both new-installation and older-window experience
• 24/7 dispatch for the active-leak first call

FAQ

The stain comes and goes — is it still a leak?

Yes. Intermittent staining tracks wind direction and rain intensity — the leak is there, it just needs specific conditions. Cavity damage grows between the visible episodes.

Can I just recaulk it?

Caulk is a seal, not a system — if flashing is the true path, new caulk hides the leak and the damage continues inside the wall. Trace first, seal second.

My windows are new — why are they leaking?

Flashing and sealing done during installation are the usual suspects — the tracing documents the cause, which may support a warranty claim with the installer.

What about the winter fogging between panes?

That is a seal failure inside the insulated glass unit — repair is window replacement (the unit, not necessarily the frame), and it is separate from an active leak. The assessment covers both.