THIS OLD HOUSE opens a brand new season by helping the Sharma family renovate their 1940s house on Boston's famous Charles River. Out front, the home's bland exterior will receive a curb-appeal makeover thanks to the creative ideas of architect Chris Chu. On the inside, the house will get a new, larger kitchen, updated baths and loads of new windows to take advantage of the spectacular views out back. General contractor Tom Silva conducts a structural investigation and cites concerns about a new EPA law affecting all contractors dealing with lead paint in 2010. Plumbing and heating expert Richard Trethewey finds asbestos in the usual spots in the basement, but with the help of asbestos inspector Glenn Potter, it's also discovered hiding in the ceilings, walls, under the kitchen sink and even in the joint compound. Work gets underway as landscape contractor Roger Cook puts erosion control in place to protect the flood plain, while asbestos abatement contractor Brian Fitzsimons begins what will be nearly two solid weeks of asbestos removal.