Ask This Old House - Season 23

Richard Trethewey and Nathan Gilbert assist a homeowner with a couple upgrades to make her bathroom better suited for aging in place; After being denied by gutter companies and local handymen, a homeowner's last hope is to call Tom Silva and Nathan to help replace her rotten wooden gutters.

Mauro Henrique demonstrates how to repair cracked drywall; the team tries to guess the correct use of Tom Silva's black inflatable square; Mark McCullough walks through the evolution of bricks; Richard Trethewey shows a homeowner two different types of covers to upgrade his radiator baseboards.

Jenn travels to Florida to assist a homeowner in choosing tropical trees for his backyard; Nathan demonstrates a tool that makes asphalt roof work easier; Ross showcases some smart light products.

Mason Mark McCullough helps a homeowner take care of a pitch issue on their granite front steps. After repairing the water damage, the two work together to replace the tread with perfect pitch.

Nathan installs a bathroom recessed cabinet; Mark repairs a chimney crown; Mark shares some items he's found while doing jobs.

Jenn solves a homeowner's gutter runoff problem by installing a dry well and popup emitter; Ask This Old House spotlights lead carpenter Lasana Harper; Heath helps a homeowner replace a ceiling fan.

Kevin teams up with a wallpaper expert to create an accent wall in Miami; Lee demonstrates a variety of sprinkler heads; Richard installs a submersible sump pump to solve a flooded basement problem.

Ross investigates an excessive dry air issue and installs a whole house humidifier; Mauro shares his technique for painting shutters in bulk; Tom and Kevin build a triangle outdoor end table.

Mark McCullough fixes an uneven paver patio that has lifted and shifted over time and demonstrates the proper techniques of creating a patio that will last; Nathan Gilbert and Kevin O'Connor talk all about common types of ladders including styles, accessories, and how to use them safely; Heath Eastman helps a homeowner cut her car charging time in half by installing a Level 2 EV charger.

Nathan Gilbert replaces a homeowner's broken double trash can pull out with a new one that will smoothly slide in and out from the cabinet space; Heath Eastman gives a brief history of household light bulbs and explains why incandescent and fluorescent lights are being phased out; Lee Gilliam helps a homeowner's curb appeal by removing overgrown arborvitae trees.

Mark McCullough travels to Detroit to help a homeowner make a gravel foundation for a shed; Tom Silva and Nathan Gilbert walk through the anatomy of framing an interior non-load bearing wall with a door opening and share their tips on how to build one; then Nathan helps a homeowner hide their laundry area by installing a partition wall with bifold double doors.

Richard Trethewey assists a homeowner through the process of converting a wood burning fireplace to gas, assembling a team to do the electrical, gas hookup, and insert installation; Tom Silva brings in a metal, pointy item for the crew to guess What Is It? Nathan Gilbert helps a homeowner install flat panel wainscoting in his dining room.

Jenn Nawada meets with a Detroit beekeeper and learns about bees, how honey is harvested, and tips on how to start your own hive; Ross Trethewey, Heath Eastman, and Lee Gilliam share a few phone apps they've been using in the field lately that has made their work easier; Tom Silva and Kevin O'Connor build a step stool using a mobile CNC router.

Mauro Henrique helps a homeowner paint his wainscoting by using an airless sprayer; Kevin O'Connor, Ross Trethewey, and Heath Eastman discuss how a growing number of homes are going all electric and how it compares with fossil fuels. They share what homeowners should research before making the switch; Nathan Gilbert helps two young brothers build a sandbox for their very own digging area.