New floorboards for whole of upstairs

lookstraightahead

Hello all
The upstairs of an old house we are purchasing has very springy floorboards in places upstairs.
we are thinking of getting the whole floor replaced before moving in. His much would this cost ish including labour? Size is about 55 sq m

Jeepers_Creepers

Are you going to expose them? If not, suggest you go for 22mm chipboard flooring instead.

Cost? No idea

(I wonder if the springiness is due to the 'boards or the joists below...?)

EssexExile

I'd like to know why they are springy, have you had a survey?

stuart45

EssexExile said:

I'd like to know why they are springy, have you had a survey?

First thing to check. Under sized or twisted joists are often the cause.

lookstraightahead

EssexExile said:

I'd like to know why they are springy, have you had a survey?

Yes, we had a structural survey that says:

"upper floor of suspended timber construction which generally creaks and flexes under foot. The rear bedroom is uneven and there is a considerable amount of flex within the floor.... no direct inspection of underlying timbers ... any major defect present would have been resolved when property was converted in 2005"
"timber joists unlikely to comply with current building regulations particularly joist depth .... therefore floors are not level and suffer from a degree of vibration ... expected with an older property ... possible to make some marginal improvements working within the floor construction, further advice recommended"

stuart45

You won't know too much until the floor boards come up. With solid walled houses the ends of the joists sometimes are rotten which causes problems. 

lookstraightahead

stuart45 said:

You won't know too much until the floor boards come up. With solid walled houses the ends of the joists sometimes are rotten which causes problems. 

Thank you. So if everything was absolutely worse case scenario and absolutely everything needed replacing, how much might that cost for 55 sq metres? Any idea as I haven't got a clue.  The house was converted by builders in 2005 but has had nothing done to it since. It's nearly 200 years old.

stuart45

To remove an upper floor and replace is a lot of money, although I couldn't give you too much of a price as I'm a bricklayer and this is a chippies job. 
However it's unlikely that you need to go this far. Usually some noggings and maybe a few extra joists on hangars will solve the problem.

[Deleted User]

https://forums.moneysavingexpert.com/discussion/5650103/cost-to-repair-replace-floorboards-in-3-bedroom-terraced-house

lookstraightahead

stuart45 said:

To remove an upper floor and replace is a lot of money, although I couldn't give you too much of a price as I'm a bricklayer and this is a chippies job. 
However it's unlikely that you need to go this far. Usually some noggings and maybe a few extra joists on hangars will solve the problem.

I have some brick questions too 😂😂. We have a wall of spalled bricks ... I will ask it separately tomorrow though as everything needs to sink in one problem at a time ...