Hi Summer, Like you you I had a very small super balanec in a Retail Superfund. Decieded that I needed it to wortk harder so a did some research. I ended up transferring ti an Industry super fund with low fees and good returns Choze my own mix and I can change it any time I like without fees. You mentioned Industry super funds you might be aware that they have financial planners who are not paid by commision. I think its a flat $750 fee.
I am looking to get the most out of my super so will probably take advantage of the govt co contribution scheme which will for taxable income under 28k on a max contribution of $1000, the govt will kick in $1500. this is indexed down to dollar for dollar at about $38K taxable income and cuts out at 58k Taxable income. You can contribute in this way once per year and you declare it on your tax return. Not bad for young people. Get a return of 150% which then compounds with the rest of your super. Any way check out the ATO or your superfund web site and search under co superannuation co-contributions.

For extensions, any master builder can estimate based on a price mer square 10ft X 10 ft. For renos you will have to just beat the bushes for a quote. Good luck