A well done website with a nice portfolio of successful projects you've done is absolutely worth the investment. A website works while you sleep. Optimize for local search, and you'll generate tons of leads that otherwise likely would have never existed. On the other hand, an ugly website that is not well maintained can be a turn off, and if not optimized for search (particularly local search in your case) will generate very limited traffic.
A well done website with a nice portfolio of successful projects you've done is absolutely worth the investment. A website works while you sleep. Optimize for local search, and you'll generate tons of leads that otherwise likely would have never existed. On the other hand, an ugly website that is not well maintained can be a turn off, and if not optimized for search (particularly local search in your case) will generate very limited traffic.