Construction Logo

I’m trying to design a website for a good friend’s construction company, Goodwill Builders (“Building for you as we would build for us”).
The guy that runs it believes very much in peace and spirituality and his company has been building portable buildings for the last 15 years, branching into custom homes in the last five years or so. (Pictures of their work can be found at their current site, www.goodwillbuilders.com, but be warned that the site design and layout is terrible. I did not design the monstrosity).
I need help constructing a logo for the business. The message I want to convey is the owner’s philosophy (peace, forgiveness, happiness) but I don’t want to lose the solidness of a construction company. Although I certainly don’t expect anyone to actually design a logo for me, I’d very much appreciate any tips in regard to what color scheme I should use and any specific ideas you have about what the logo (or the entire site) should look like.