Are you putting it in the kitchen also? I have the same dilemna. I also have the issue of requiring sound insulation regupol in an apartment and what gets out down first, the kitchen joinery and floor around or joinery on top. I have selected tongue n groove but have a very uneven concrete floor which now need levelling and doubling flooring costs. So check that you have fairly even underfloor for engineered flooring. Agnes

I know of a few ways this can be done, but all depends on the job and what original adhesive was used. Water and vinegar method - allow the glue to become soft then try to pick off Acetone - let glue absorb then wipe off - careful with this as acetone will discolour your boards/remove varnish (could sand after to avoid) Warm water - wet some cloths and place them over the glued areas, allow to soften and then remove with cloth/pick off. Depending on the type of adhesive, you may be able to sand off - but beware that some adhesives will melt/clump and spread the issue further. Whatever you decide, I recommend getting a professional to come and view the works as they will be able to gauge the period it was done and thus the materials employed. Best of luck :)

There shouldn't be any structural issues for a conventional bathroom, but if you are considering a large spa bath then definitely get structural advice. The main concern will be floor deflection (bounce) leading to problems with tile adhesion, but there are solutions for that. Easy access for plumbing is a bonus that will reduce costs. I wouldn't think you are wasting anyone's time asking for a quote in that situation, provided you have a realistic expectation of cost. $15k will likely be a starting point and costs can easily rise from there depending upon size, inclusions and sundry works requirements.

Thanks thats very helpful. I doubt there is any insulation between walls given the age and type of home. ill have a proper look in the roof space to check the condition of the insulation batts. We dont want to do a massive overhall renovation of the house as I dont feel it will yield huge return for us. But improved energy efficency/comfort I feel is worth looking into. So thank you both for your thoughts to look into walls and roof first