We recently completed a PVC window sill replacement in North London after the original sill had been affected by damp and moisture. The old finish no longer looked good, so we discussed a longer-lasting PVC replacement with the client.

Investigating the damp before replacing the sill

Before fitting the new sill, we removed the damaged section and checked whether moisture was coming through the bottom of the sill or from the surrounding area. The inspection found the area underneath was dry, with no ongoing damp coming through the base.

This check was important because replacing a sill without investigating the cause of moisture can lead to the same problem returning. Once the area was confirmed dry, we prepared it for the new PVC sill.

New PVC window sill fitted

The damaged sill was replaced with a new PVC window sill, chosen because PVC is durable, moisture resistant and easier to maintain than the previous damp-affected finish. The new sill provided a clean, bright and practical finish around the window.

Finishing the window repair

After fitting the PVC sill, we painted the side sections of the window and applied fresh silicone around the edges for a neat, sealed finish. The work was completed carefully, and the client was happy with the result.

Local carpenter and handyman services

This type of window repair and PVC sill replacement is part of our wider local carpenter and handyman service across North London. We help homeowners with window finishing, trim repairs, damp-affected timber replacements, silicone work, painting and general property repairs in areas including Crouch End, Hendon, Finchley, Muswell Hill, Barnet and Hampstead.

If you need a damaged window sill replaced, repaired or finished, contact us to discuss your project.

Project photos

The gallery below shows the damaged window area, the removal and inspection stages, and the completed PVC sill installation.