A few lessons on the proper use of a circular saw, installing a new outdoor faucet and preventing a tree from splitting in half.

In the loft, general contractor Tom Silva gives host Kevin O'Connor a few lessons on the proper use of a circular saw. Then, plumbing and heating expert Richard Trethewey installs a new outdoor faucet for a homeowner using a flexible plastic tubing called PEX. Next, Richard, Tom, Kevin and landscape contractor Roger Cook ask, "What is it?" Arborist Matt Foti makes a HOUSE call to prevent a tree from splitting in half by installing steel cables and through-bolts to hold it together.