Hardwood Doors (4) and Windows (14) Preservative Treatment

[patp]

Hi all - it's been a while because we finished our build! Now we need to do maintenance...

 

Our hardwood doors and windows were supplied by a local joinery firm. Last year (or was it the year before?) we started the process of treating them with an appropriate preservative. I contacted the firm about a million times but got absolutely no help whatsoever in finding out what they used as a treatment in the first place. I finally managed to get the name of the company they buy their preservatives from and asked for help from them. They proved useless too. I ended up with one of their products that is now peeling off 🥲🥲🥲

Our carpenters warned us that we must find the right match and they were right. How do we do that? What do we do to the wood now? Husband thinks we will have to rub the whole lot down and start again. What do you think? We are both in our late seventies now (see how long it takes to do a self build?! 😂) and not in good health. I could manage about one window a month but that is about it.

 

Hoping the great minds on here can help.

[nod]

I’ve had poor results with Osmo 

But have used an Osmo base coat which seems to be a good fit Clear but protects the wood and inexpensive 

[JohnMo]

The wood and the coating make a big difference. I had some cedar gates and tried to varnish, looked great for about a month and it all started to fall off. The oils in the wood pushing varnish off (or something like that). I found it scrapped off really easily with a Stanley blade scraper, then a light sand.

 

Cedar oil is fantastic stuff, it stops wood going grey, feeds the wood etc. Our current house has larch cladding which has been in place for about 4 years and it gets a single coat of cedar oil every two years so far (two coats so far). Goes on really easily with a brush.

 

We got ours from here, a little goes a very long way.

 

https://www.ryeoil.co.uk/shop/decking-oil/

 

They call it decking oil for some reason.

 

 

[Gone West]

8 hours ago, patp said:

Our carpenters warned us that we must find the right match and they were right. How do we do that?

Quite a lot of wood treatments are available in sample or tester pots, so I think your best bet would be to try different types on a small area of a door until you find one which is suitable. Do a search for wood treatment sample pots.

[Oz07]

I've made the mistake of using clear on oak before. You have to use something with a bit of pigment first then clear ontop.

[patp]

Thanks guys. The problem is that the one I used is all peeling off so I think that I have to sand that all down and start again. It is so annoying as we have always had hardwood windows in our properties which, in the last case, have been trouble free for thirty plus years. Now we start from scratch and get trouble in the first year. It is so frustrating that the joinery company is completely unhelpful over what brand and type of treatment they used.

[Oz07]

I had the same with having to sand it all off. Hopefully only needed on external faces?