Repair Water Damaged Interior Window Sill

Instructions asses the damage to the window sill prep your work area sand away water damage wood stabilize remove and replace rotted wood bleach out the water stains sand and clean the remaining sill re stain the window sill clear coat the window sill.

Repair water damaged interior window sill. Mix several drops of oil free soap with warm water until it foams. First we ran a cutting blade this is my favorite caulk removing tool. Step 3 repair the window casings. Around all the edges including between the underneath trim and the window sill.

Dry the wood with a microfiber cloth. Restoring a sill ranges from the application of toothpaste and baking soda for water stains to the more labor intensive process of repairing rotting wood with epoxy primer and wood filler. Actual footage from a job repairing water damaged window sills. Scrub with authority using strokes parallel with the grain only.

Scrub the window sash with a stiff wire brush. We pulled out the rest of the nails that were left behind. Submerge a sponge in the soapy water and squeeze out the excess. Finish removing all of the old finish with the.

Then we used a hammer and banged popped the sill upwards being careful to avoid any further damage. 2 remove soft rotten spots from the sill. After the damaged wood has been removed clean up the window casings. Chisel these out with a flathead screwdriver or small wood chisel.

Using a paint scraper remove the paint from the windowsill where there is water damage. Wipe down the window casings to remove the oil and dirt.