Ask This Old House Season 23: Episode Guide & Ratings

Making a bathroom more accessible; restoring rotten wooden gutters

Repairing cracked drywall; installing radiator baseboards.

Tropical trees for the backyard; a tool that makes asphalt roof work easier; home smart light products.

Restoring a bulkhead; combination squares; repairing crumbling mortar on brick front stairs.

Installing a bathroom recessed cabinet; replacing a chimney that has been causing water damage to an indoor charcoal grill.

Solving gutter water runoff; lead carpenter Lasana Harper talks about his journey into carpentry; replacing a ceiling fan.

Creating a focal point wall; common sprinkler heads; installing a submersible sump pump to solve a flooded basement problem.

Installing a whole house humidifier system; how to quickly paint shutters in bulk; creating a triangular top outdoor end table out of teak wood.

Replacing a broken double trash can pull out; why incandescent and fluorescent lights are being phased out; removing overgrown arborvitae trees.

Installing a shed base, framing an interior non-load bearing wall, installing bifold double doors.

Converting a wood burning fireplace to gas; installing flat panel wainscoting.

A Detroit beekeeper talks about how to start a hive; phone apps that have made work easier; building a step stool using a mobile CNC router.

Painting wainscoting; what homeowners should know before switching a home to all electric; building a sandbox.

A company that builds homes using 3D printing; landscaper Aaron Smith; using a lathe to turn a square bowl with legs.

Painting stair treads and handrail; highlighting new tools; installing new wall sconces above a fireplace.

Building an outdoor shower in Cape Cod; landscape touches.

Diagnosing and treating a diseased pine tree; performing maintenance inspections.

Maintaining a mini split and properly cleaning the indoor and outdoor components; building a garden retaining wall.

The basics of dethatching and aerating; installing a smart home energy monitoring system; the different types of routers.

Adding a new zone to an irrigation system; comparing the strengths and differences between PEX and copper piping; repairing a door hinge by using wooden dowels, epoxy and longer screws.