Allyn Harth (center, between son Greg, right, and framing sub Guy Schmidt), an industrial engineer, worked in real estate, insurance restoration, and manufactured housing. But at age 66, he "pulled a Colonel Sanders," starting a company in his golden years. "If he could do it, I could, too," Harth says.

About a year ago, Greg, a civil engineer, joined the company, and the complementary perspectives of the partners are driving the business to the $1 million mark.

The company produces 30 jobs a year, averaging $39,000. Allyn is the salesman. Greg, the production manager, oversees a network of top subcontractors. Greg's arrival has meant closer examination of job costs and systematized lead tracking. Amazingly (for those who dismiss online referrals), 58% of their business comes from HomeNet Solutions, a Philadelphia-area contractor referral service.

The Harths are committed to technology, using e-mail and their Web site to communicate with clients and prospects. They want to maintain quality and increase profitability while growing at a 30% clip. They're also committed to the industry. Greg serves on his NARI chapter's marketing committee.