Season 3 - Ask This Old House Episodes

Kevin learns about ladder safety from expert John Drengenberg. The guys ask, "What is it?" Roger rebuilds a crumbling retaining wall using interlocking concrete blocks.

Tom Silva uses masonry fasteners to install window boxes on brick. The guys ask, "What is it?" Richard shows Kevin several different ways to make copper pipe connections. Roger installs a perimeter drain to catch rainwater.

Tom shows Kevin a few tricks for using a tape measure. Electrician Allen Gallant brightens up a basement. The guys ask, "What is it?" Kevin shows Roger software that can be used to create a 3D landscape plan. Richard replaces the banged-up aluminum cover on an old baseboard heater.

Richard installs an electronic air cleaner on a forced-air furnace. Roger shows Kevin some tools and materials for removing ice from concrete walkways. Tom shows how to properly vent a bathroom fan to the outside of the house.

Richard helps clear a clogged vent stack with the aid of a fiberoptic plumbing snake. The guys ask, "What is it?" Roger helps build a ice skating rink in a backyard.

Roger helps a homeowner shop for a new riding lawnmower. The guys ask, "What is it?" Tom replaces a rotting wooden threshold. Richard shows Kevin how garbage disposers work and explains how to keep them working like new.

Tom shows Kevin what’s inside an electrical service panel. Electrician Allen Gallant installs a new 220-volt receptacle. Roger shows Kevin types of gardening hand tools. The crew asks "What is it?" Richard helps install a macerating toilet in a basement.

Tom Silva helps level an uneven concrete floor so that he can install hardwood flooring. The guys ask "What is it?" Richard shows a simple repair for a leaky water shut-off valve. Tom teaches Kevin about air-compressors.

Roger shows how to recycle yard waste through composting. The guys ask "What is it?" Richard helps remove an old cast-iron house trap on a main sewer line so that a clog can be easily cleared.

Rich Trethewey "clears up" clogged bathtub drains. Tom Silva helps replace double-hung window weights with spring loaded sash balancers. The guys ask, "What is it?" Roger helps plant a low-maintenance garden for an elderly landlady.

Tom shows him how to repair and replace rotting deck balusters. The guys ask "What is it?" Richard hooks up a refrigerator’s ice-maker and water dispenser.

Tom shows Kevin a few ways to recreate different moulding profiles. Roger has some advice for a homeowner with a sinking brick patio. The guys ask "What is it?" Painting contractor Jim Clark shows Kevin and a homeowner a new way to strip wallpaper.

Tom makes old windows more efficient by installing new storm windows. Roger Cook offers tips for getting your shrubs ready for winter. The guys ask "What is it?" Richard learns potentially life-saving lessons on carbon monoxide detectors.

Tom replaces the broken window pane in an exterior door. The guys ask, "What is it?" Roger prunes a Pin Oak tree with the help of arborist Matt Foti.

Roger re-seeds a damaged lawn. The guys ask, "What is it?" Richard installs a new kitchen sink.

Tom Silva repairs some cracked stucco. The guys ask, "What is it?" Roger shows Kevin how to keep a lawnmower humming all summer long by cleaning underneath the deck. Richard installs a pump to remove condensate from a basement dehumidifier.

Richard finds the source of a strange "fog horn" sound coming from his plumbing system. The guys ask, "What is it?" Tom shows the three basic cuts necessary to install crown molding. Tile contractor Joe Ferrante helps replace some hard-to-find broken bathroom tiles.

Richard gives Kevin O’Connor some lessons on leaky valves and how to repair them. Tom replaces an old, rusty cellar door with a new fiberglass model. The guys ask, "What is it?" Roger repairs a leaky drip irrigation hose.

Tom installs adjustable shelves in a den. The guys ask "What is it?" Roger is joined by soil expert Roberta Clark for some tips on testing soil before planting. Richard installs a hot water re-circulator pump in an upstairs bathroom.

Richard demonstrates how to extend the life of a hot water heater by replacing the sacrificial anode rod. Tom installs a "cricket," or rain diverter. The guys ask "What is it?" Richard installs thermostatic valves on her steam radiators.

Tom builds window boxes for flowers. The guys ask "What is it?" Roger installs sod to create a brand-new lawn in the backyard of homeowner Peter Burdick, just in time for his family’s annual barbecue.

Tom shows Kevin how to remove bolts and screws with stripped or damaged heads. Roger Cook edges a concrete walkway using jumbo cobblestones. The guys ask "What is it?" Tom jacks up the roof of a front porch to fix a rotting post.

Tom Silva cuts a pass-through in a kitchen wall. The guys ask, "What is it?" Rich repairs a continuously running toilet for homeowner Peter Fay.

Roger repairs a broken fence. The guys ask, "What is it?" Then, Richard restores hot-water flow to a shower by repairing an anti-scald shower valve. Tom shows how to upgrade an old drill by installing a "keyless" chuck.

Richard replaces the trap under a bathroom sink. Roger shows Kevin a few design options for laying out a brick walkway. Tom Silva repairs a cracked plaster ceiling.

Roger shows the proper way to edge a lawn and flower bed. Tom gives some lessons on choosing drill bits. The guys ask "What is it?" Kevin visits Captain Hugh Duffy at the Boston Fire Department Training Center for some lessons on choosing the right type of fire extinguisher.