Many of your potential clients live on the net these days, both at home and at work, so a decent web site would be a plus. Not a necessity, but it would not hurt.

My suggestion would be to promote through your satisfied customers. Don;t be so crass as to offer cash, but a gift certicate for $ 50 at a good restrauant will not only show your appreciation with class, it WILL get your name mentioned.

You are in a field that is overrun with contractors who constantly over promise and under achieve. A three week project turns into 3 months. If you do good work, on time, you should have no problems having past customers becoming your "commissioned" salespeople, at $ 50 a sale.

In virtually every community there are several restrauants that will get even the most stay-at-homeish folks out for an evening. Chose one of them and let your past customers know it will be "dinner on me" for a referral that becomes a sale.