Papering over wall paper?

If the paper is on firm that is certainly an option. for the best results however removing old paper before decorating is always the best option. It all depends on how well the original wall paper was installed really. My advice would be provided the wall is in tact (no structural cracks) and the paper is firmly adhered to the wall you’re good to go. If not I would advise steaming the old paper off and potentially plastering/renewing the wall with new paper. Hope this helps

My suggestion, even if it's not what you want to hear, is to take the paper off, crossline the walls to mask out the paint colours, and then new wallpaper on top. It's always a risk putting new wallpaper over old. Even if the existing paper seems well stuck, as son as you apply the new paper, the water from the paste can soak through the orriginal paper and affect the old paste. So where you might think you are saving time and money, you might end up with both the old paper and new paper starting to come away from the wall. So basically you can do it the quick way and cross your fingers, or you can do it the way a professional would do it.

Hi there, my suggestion is to remove the paper that you currently have and get rid of the deep blue in the walls and although it the most costly exercise, it is the best thing to do if you want to do the job properly. Also in the long run it will be cost effective to you.

I always like to start a fresh cutting corners generally does not save time or money I personally never paper over paper unless its lining paper ,

Like others have said avoid cutting corners and strip the wallpaper, Coss line then either paint or wallpaper over that.

Absolutely invest the money and time now before you get problems down the line. If you try to cheap out now, you will pay for it later on. Although the current paper may seem well stuck now, as others have said, it will soften when new paste is applied to hang the new paper and you will more than likely get issues. The best option is rarely the cheapest unfortunately, and this applies here. My method would be as follows: 1. Strip old wallpaper 2. Wash walls and allow to dry before giving it a good sand down. 3. Apply a coat or two of cheap white emulsion to obliterate the old blue colour. If you have the spare cash use Zinsser bullseye 123 or a solvent based undercoat instead to really seal the wall as well as get rid of the blue. This will block out any old paste residue that remains if your sanding and washing isn't thorough enough. 4. Apply new wallpaper. You could line it first for an even better finish but this will of course cost more. Hope this helps.

Hi, my opinion is this, remove the present wallpaper, repare the wall and replace the old paint ( blue) with white or off white primer coat. And then install a new wallpaper after the wall is good to go with the new wallpaper.