Caulk or not to caulk?

8 Aug 2011
Reaction score
United Kingdom
What's the best filler to use around the edge of a upvc window where the pcv window meets the wooden frame? I used caulk a few of years ago but have just spent a long time cleaning the upvc frame and scraping off all the caulk which had turned yellow. Is it better to use a bigger bead? Could I mask the window then caulk around the edge ensuring all the caulk is painted so it doesn't turn yellow.
Thanks in advance for any help:)


  • image.jpeg
    65.9 KB · Views: 233
Sponsored Links
Caulk is designed to be painted over, isn't true white and yellows.

Use white silicone.
I always use masking tape, if I'm using Caulk or Silicone. I find it leaves a much neater edge.

DIYnot Local

Staff member

If you need to find a tradesperson to get your job done, please try our local search below, or if you are doing it yourself you can find suppliers local to you.

Select the supplier or trade you require, enter your location to begin your search.

Are you a trade or supplier? You can create your listing free at DIYnot Local

Sponsored Links