Hi mate, I would suggest you do some planning before you leap into it, things like...

a) find out how much competition you have in the area and how busy they are

b) find out if you are able to undercut them - if not, you'll struggle to get the work

c) can you buy in the equipment cheaper than the person on the street?

d) it will take time to build up work, what will you have to live/outgoings - rent, rates, insurances etc on while that happens - few months atleast

e) how will you promote the company, how will you get business through the door

f) MOST IMPORTANT - know your figures, work out how many instales you'll need to do a year at what profit margins to make money or break even, can it be done??

This sort of planning is essential to work out if it will work and to secure things like Business bank accounts with credit cards, cheque books etc etc.

Also, what area are you in, places like the Princes Trust give help to start up business, there are others, you will need to do a bit of research on who is out there offering free support etc

I used the princes Trust, they gave me advice, support, offered mentors and helped us gain Business Bank accounts and low interest loans etc.

Also, trade accounts may be hard to get unless you are all registered up etc, so may be cash on collection to start, the more you spend the more discount they will give you.