Two South Riding teenagers have been charged with damaging a townhouse in the community, the Loudoun County Sheriff's Office said.

Robert Harwick, 19, and Wesley Gilbert, 18, were charged with breaking and entering and felony destruction of property. Damage to the townhouse -- in the 43000 block of Golf View Drive -- occurred between February and May, sheriff's spokesman Kraig Troxell said. The townhouse was unoccupied and sustained $10,000 in damage to carpeting.

The Sheriff's Office also is investigating break-ins the weekend of April 23-24 at two South Riding single-family houses under construction that resulted in more than $50,000 in damage.

A house on Valiant Drive sustained approximately $48,000 in damage after intruders destroyed drywall, appliances, windows and mirrors. Damage to windows and stairwell railings at a house on Clarecastle Drive totaled about $3,000. Numerous beer cans and bottles were collected as evidence at both sites, officials said.

The damage to both houses was discovered when construction crews returned to work after the weekend.

Anyone with information about the cases is asked to call the Criminal Investigations Division at 703-777-0475. Callers who want to remain anonymous can contact Loudoun County Crime Solvers at 703-777-1919. Information leading to an arrest and indictment is eligible for a cash reward of up to $1,000.