Ask This Old House

Helping a homeowner in Canada install a new kitchen sink; Tom Silva shows host Kevin O'Connor some tools that no home workshop should be without; landscaping contractor Roger Cook and arborist Matt Foti rescue a tree from volcano mulching.

General contractor Tom Silva helps a homeowner install balusters on his new staircase; Tom, Kevin O'Connor, Richard Trethewey, and landscaping contractor Roger Cook ask, What is it?; Roger helps a homeowner install a new stone footpath.

General contractor Tom Silva helps a homeowner find additional storage space by creating a new doorway into an unused attic; Richard shares a viewer tip on how to create a faucet wrench from a standard PVC pipe; repairing a broken doorbell.

Tom helps a homeowner repair a rotted windowsill; Roger shows Kevin a few gardening tools designed for people with limited mobility; Richard helps a homeowner install an outdoor faucet.

Landscaping contractor Roger Cook builds a raised garden bed that is accessible by wheelchair; general contractor Tom Silva shows a homeowner how to repair a leak in his roof caused by a worn-out plumbing vent gasket.

Different types of ground cover; helping a homeowner warm up her cold living room by installing new hydronic baseboard heaters; a new product that makes it easier to mark and cut openings for electrical outlets in wallboard.

Landscaping contractor Roger Cook heads to Fargo, North Dakota, where he and a local crew help a homeowner build a new circular patio and fire pit; Tom and Kevin head outside to repair a set of brick stairs.

Install a new energy-efficient storm door; Richard Trethewey shows host Kevin O'Connor how to cut and solder copper plumbing pipes and fittings; landscaping contractor Roger Cook helps a homeowner reduce the size of an overgrown privet hedge.

Landscaping contractor Roger Cook helps a homeowner repair an uneven stone patio; Roger, Kevin, Tom Silva, and Richard Trethewey ask What is it; Kevin and painting contractor Mauro Henrique help a homeowner repaint a rusty metal bulkhead door.

Helping a homeowner heat his newly remodeled kitchen by installing hot water radiant tubing underneath the floor; What Is It?; Tom shows Kevin how to apply joint compound to drywall corners; lessons on using a wheelbarrow properly.

Tom helps an old friend repair the loose carpeting on his staircase; Roger shows Kevin several different types of shovels and other tools for digging; in Pasadena, Calif., Kevin and a local electrician install recessed lights in a kitchen ceiling.

Richard Trethewey helps a pair of homeowners reduce the utility bills by installing a new forced-air furnace and air conditioning system; Tom Silva helps a homeowner repair damage to her oak flooring that was caused by a leaky radiator.

Roger and chainsaw expert Tim Ard demonstrate safe chainsaw use and a brand-new way to sharpen chains; Tom helps a homeowner with a leaky rain gutter; What is it?; Richard and Kevin install a new fiberglass bathtub and shower enclosure.

Richard Trethewey helps a homeowner install a second sink into an existing bathroom vanity; Roger Cook shares a viewer tip that makes yard clean-up a little easier; Tom Silva helps a homeowner repair a large crack in his concrete block foundation.

Roger and Kevin do some yard clean-up using rakes, blowers and lawn vacuums; Richard shows how HVAC thermostat technology has evolved over the years; Tom installs carpet tiles over a concrete floor.

General contractor Tom Silva helps two homeowners complete the construction of their new backyard deck; back in the workshop, Tom shows host Kevin O'Connor a few other types of hidden deck-fastening systems.

Landscaper Roger Cook shows Kevin a few ways to deal with rainwater from gutters and downspouts; plumbing and heating expert Richard Trethewey talks about pliers; What Is It?; insulating an attic floor using fiberglass batts and blown-in insulation.

Up in the workshop, expert painter Mark O'Lalor shows Kevin a few tricks and techniques for painting an interior wall; Richard helps a homeowner install a new water heater with an electronic valve that prevents floods due to water leaks.

Roger helps a homeowner in Wichita plant a narrow garden bed near her driveway; Richard, Tom and Kevin conduct home improvement workshops; Richard and a local contractor make an old fireplace more energy efficient by installing a wood-burning insert.

Kevin travels to Little Rock, Ark., to install an outdoor electrical outlet for a homeowner; showing a live audience in Wichita, Kan., how to plant flower bulbs properly; a tour of Graceland; replacing old, worn-out kitchen cabinet hardware.

Richard heads to Salt Lake City, Utah to install a new solar water heating system; Scott Caron shows Kevin devices to make residential electrical systems safer; Kevin and Tom replace the rotting support posts underneath a backyard deck.

Host Kevin O'Connor and general contractor Tom Silva demonstrate how to select and install antique and reproduction door hardware; Richard shows a homeowner how a geothermal home heating and cooling system works.

Roger and Kevin show some different methods and tools for splitting firewood; professional painter Jeff Young shows Kevin how to choose, use and care for paintbrushes; Richard uses an electric pump to connect a basement bar sink to a sewer drain.

General contractor Tom Silva and host Kevin O'Connor build a tool storage cabinet, perfect for any basement or garage; What Is It?; Kevin works with a damage prevention specialist to protect a house from catastrophic floods.

Tom Silva helps a homeowner remove a vinyl kitchen floor; Kevin O'Connor tours a well-stocked architectural salvage yard for vintage house parts; Richard helps a homeowner eliminate a gurgling sound coming from his bathroom plumbing.

Yard clean-up using rakes, blowers and lawn vacuums; how HVAC thermostat technology has evolved over the years; general contractor Tom Silva and host Kevin O'Connor install carpet tiles over a concrete basement floor.