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E2 | Seashell Driveway, Radon System | Ask This Old House

Season 24 Episode 2 | 23m 42s

Lee Gilliam upgrades a coastal house's gravel driveway to a seashell driveway. The gang plays "What Is It?" with a broom-shaped tool with spinning spiral wires. After losing his dog to lung cancer, a homeowner finds high radon levels in his home, raising health concerns. Ross Trethewey teams up with a radon technician to install a mitigation system to reduce the levels.

Aired: 10/01/25 | Expires: 10/16/25
Funding for Ask THIS OLD HOUSE is provided by The Home Depot and Renewal By Andersen.
Extras
Follow the complex lives of giant elephant bulls in Amboseli and Mount Kilimanjaro.
Male elephants form powerful bonds — and even become adoptive parents together.
In Amboseli, one male’s opportunity attracts rivals — and the attention of watching juveniles.
Esau’s journey spans borders that elephants cannot see — but must obey.
Lyse Doucet; Matthew McConaughey; Christina Cross
Film critics look back at 2025 and name their picks for the year’s best
White House pushes to dismantle leading climate and weather research center
British panto production blends holiday tradition with Muslim culture and humor
Imran Ahmed on Trump's threat to deport him over 'censorship' for countering online hate
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