Window & Door Leak Repair in Bernardsville, New Jersey

Window leak repair in Bernardsville handles a problem estate-era housing knows well — original wood windows whose flashing was patched across generations, exposed hillside elevations that nor’easters test with every storm, and walls where old details were never lapped right. Water Damage Pros US diagnoses the true entry point and restores everything the leak touched.

Where These Leaks Start

• Failed flashing — original head flashing rusted, patched, or never properly lapped.
• Historic sill rot — wood sills that absorbed a century of weather become the leak path themselves.
• Weight-pocket and frame decay — old double-hungs wick water into sill frames and jambs.
• Exposed-elevation failures — hillside gusts driving rain upward into details vertical rain never reaches.
• Wall transition failures — water entering above the window through aging siding, surfacing at the frame.

Our Diagnosis-First Process

1. Water testing — we simulate wind-driven rain to find the real entry point.
2. Thermal imaging — moisture behind the frame and in the wall shows on camera.
3. Targeted repair — flashing rebuild, sill restoration, or seal renewal with matched materials.
4. Cavity restoration — wet insulation and sheathing replaced before walls close.
5. Interior finish — plaster and paint restored to match the room.

Window Leak Cost Table

Service	Typical Range
Diagnosis + water test	$150 – $500
Flashing/seal repair per window	$300 – $1,400
Historic sill rebuild	$400 – $1,800
Wall cavity drying + insulation	$800 – $3,000

Nearby Areas We Serve

Bernardsville plus Basking Ridge, Far Hills, Peapack-Gladstone, Mendham, and Bedminster.

Caulking over a leaking window is a Band-Aid on a flashing problem. Fix the detail behind the seal or the leak returns with the next ridge-top blow.

Call for window leak repair in Bernardsville.