I thought Betaview do installations as well? I had them out to my place around this time last year but didn't go ahead as they were a bit pricey. I was impressed with their service tho but the budget wouldn't stretch for them to do the work.
I ended up going with another mob in Penrith (penrith Valley doors or something) but they were hopeless to deal with. Mucked me around a bit with timeframe to have the doors completed and wouldn't return my calls. If you want a timely job done I wouldn't recommend them.