***
Chuck spent time underground as a miner before sampling the building field from virtually every angle.
He worked as a framer, mason, roofer, carpenter and cabinet-maker, then settled on traditional building.
Lois, who chairs the Lancaster City Historic Commission, also acts in commercials and on stage. She and Danielle, a former cake decorator, run the behind-the-scenes part of the family business.
"We do most of the office work," Danielle says. "Then if we need to, we go wax a floor."
Danielle and Jonathan met as Lancaster Catholic High School students, when both worked at a local pizza shop.
Jonathan started shoveling stone for Chuck in 1997. Since then, Jonathan says, his father-in-law has taught him everything he knows about the trades.
"That's his handicap," Chuck jokes.
Chuck, Jonathan and an apprentice carpenter work on jobs ranging from a 1725 house in New Jersey to a tiny 1809 church in Havre de Grace, Md.
It's hard, dirty work. But together the family has built a business that fills a unique, ever-shrinking niche.
"We're not competitive with the mainstream (builders)," Chuck says. "There's enough work out there for everybody."
Historic Restorations eventually hopes to have several crews working on different jobs at the same time.
But for now it's just the four of them.
What's their secret to a friction-free family enterprise?
"We go to a shrink every couple months to work out our problems," Chuck says.
Yes, he's quite serious.
***
Chuck has used mahogany in Lancaster County jobs for 15 years.
He says he's never been called back to replace any of it.
Homeowners often choose more modern materials because they're less expensive and low-maintenance.
But once people get used to the higher price tag, most find the idea of traditional building exciting, Chuck says.
Historic Restorations began developing homeowner classes about a year ago. Chuck held the first class, on wood rot repair, earlier this month.
This fall, he and Danielle will teach classes on preservation, building dating and energy efficiency at Harrisburg Area Community College's Lancaster campus.
The current small-group classes — upcoming topics range from to hand tools to plaster repair — are hands-on and target all skill levels.
Historic Restorations welcomes ideas for future topics. Chuck hopes to recruit like-minded craftspeople to share ideas and teach classes.
With the sluggish economy, the Groshong/Keperlings figured more homeowners might be interested in learning how to tackle home-improvement tasks themselves.
And from a marketing standpoint, they realize that students might eventually become clients.
"I don't think we'll ever get wealthy doing this," Chuck says. "But we can ... at least say we did educate."
Student Russell Eaton, who lives in an older home outside Mount Joy, learned to make thresholds in a one-on-one class with Chuck.
Making the thresholds himself saved Eaton money. He borrowed Chuck's expertise — and his professional-grade table saw.
"I'm curious about learning to do a lot of things," Eaton says.
"The more things you know, the more you can do yourself."