Advice will vary depending on market and the service you are providing repair service in. If this is B2B service then I'd recommend you purchase a call list in your area from a reputable source and get yourself on the phone. Learn to sell your service so you can train your sales people. I'd recommend an auto dialer like Five9 as you grow but it doesn't hurt even if you are the only sales person. If this is B2C then you need to get on Yelp and work up your existing book of business to leave reviews. I worked with a professional service company in the midwest that opened for business in 2013 and did over $1.5M in sales their first 10 months thanks to Yelp reviews alone.