Fence Stability from opposite side

[DaisyDoo]

Hello all. Back fence is wobbly (neighbours own). It is just one post that's the culprit and they have all the posts and rails on their side. No matter how many times they've tried to 'fix' it's just not working! I have a few spare posts and I'm wondering how I'd go about stabilising from my side ie; fixing additional post and bolting onto existing post. I know I'd have to concrete post in on my side, but not sure what type of bolt/fixing would do the trick. Every windy day I'm watching and waiting for it to go, so trying to stop it happening and ease my paranoia! Neither of us are in the financial position to hire a tradesman to do the proper job that's needed, so wanting to pick your wise and wonderful brains for a temporary fix to last hopefully a bit longer!
Any help or advice will be very appreciated!
***Tried to keep it coherent, so hope you get the gist!

 

[Harry Bloomfield]

Is the present post set in concrete?

If not you could do something has quick, simple, (but not very long lasting because it would rot), as knock a post in at your own side. then lash the two posts tightly together with rope. Better, would be a post set in concrete at your side..

 

[DaisyDoo]

Thanks for replying.
I think so, but presumably the post has rotted above. They are always trying to redo temporarily but it lasts a few weeks and the wobble/leaning is back!
Should have mentioned that its continuous closeboard all the way along, so don't have easy access to the posts their side. Rope would be an ideal easy tether like you say, but wondering if there's any selfscrewing bolts or the like that I could attach from my side.

 

[Tigercubrider]

If you find wherethe posts are, you could excavate a tight hole on your side as close to the post as possible.
Even drill and chip away any underground concrete on your side. (Or ask if you can from their side)

Then use a concrete repair spur that coach screws to the rotten post through the fence and into the post above ground.
Use a few brick bits to pin the underground spur in place and add one or two postcrete bags and add water.

My local fence Co used to sell a combo kit that had everything. In a bundle.

 

[DaisyDoo]

Amazing. Thank you so much. Coach screws are exactly what I was looking for, just hadn't got a clue as to the name! This sounds like the easiest and best route to go, thankyou for the detailed explanation... now to bribe my 13 year old for his help and brute force

 

[StephenOak]

If the existing post is concreted in place then I think that you could attach a bolt down post holder

Metpost 100mm x 100mm Post Support Bolt Down System 2

The Metpost Flush Fitting Bolt Down is ideal where circumstances dictate that a post should be fixed against a flush surface, or alternatively mounted onto a wall. It is particularly suitable for patio fencing, decking, pergolas, car ports and for fixing timber fencing to walls. The Flush...

www.builderdepot.co.uk

to it, using concrete screws. Into that you would put a new post and bolt the new post to the existing rotten one.

A near neighbour recently had some fencing replaced and at some time in the past rotten posts had been attached to a new one using through bolts,

Easyfix Throughbolts M10 x 100mm 10 Pack - Screwfix

Order online at Screwfix.com. Quick acting anchor. Drill in and insert through workpiece. Zinc and chromate-plated. FREE next day delivery available, free collection in 1 minute.

www.screwfix.com

I wanted the wood to use in my garden and it was incredibly hard getting the through bolts out.

 

[DaisyDoo]

Brilliant, thankyou. What I'll do is dig a little under the gravel board and see what type the post's seated in and if it's solid enough to attach to. If not, this has given me a g

 

[DaisyDoo]

...great idea for how to attach a gate down the side which is another project I need to do!