Resourcelinks.net is a great resource if you are trying to find simple ways to market your construction company. They offer a free listing with a reciprocal link included on your website. The premium listings always offer you more traffic and visibility to people searching the web, but you can still achieve your link building efforts through their free listing.
Business owners that do not advertise or promote their company are truly behind in today's market. You will need to get a logo created, build a website and create lots of social media accounts.