I think the best stragety for me, when i was in my first couple of years starting out, was writing a standard letter with my company details and logos on etc, put a bus. card in it and make it look professional, dont word it like your begging for a job and seem desperate, just make them aware of you
i explained that im expanding my client base in my area and can guarantee a professional job at realistic prices etc etc why not at least get me to give you a free quote on one of your next jobs coming up. then at least you get a meeting with them and a chance to sell yourself!
then i got the yellow pages and thomson local and sent those letters to every builder, kitchen fitter and plumbing/heating company i could find with there address in, i got a few calls straight away then some from people who had kept my card for a months until there usual sparks was too busy then they asked me to fill in
In my opinion you have got to get yourself in with other trades first!!!
they help find the work for you, dropping leaflets is time consuming, expensive and i personally found largely a waste of time, its normally small one off jobs you end up getting, if any.
i get leaflets posted most weeks and to be honest i dont even look at them i just scoop them up with all the other toot i get through the door and bin the lot, i assume most other people do too
out of about 200 letters i sent out, over a year i ended up with about 8-10 regular contacts that i do work for, then normally their customers will use you afterwards(allways send out a few bus. cards with your certs!!), and i have found their other sub-contractors will use you too and its the best type of networking, before long you will start to build your own client base.
one bad point is relying on builders to pay you, but to be honest i have been lucky so far and only had one bad debt in 8 years
All that cost was a day writing the letter and printing it on my PC x200, addressing the envelopes (get your missus at it) and 200 first class stamps
As for advertising i found the local free papers worked ok, reasonably cheap and got much better response than yellow pages etc! but again sometimes you get lucky but mostly small jobs!