Season
- Season 0 2019-08-17
- Season 1 1979-01-01
- Season 2 1981-01-01
- Season 3 1982-01-01
- Season 4 1982-05-15
- Season 5 1983-10-01
- Season 6 1984-10-05
- Season 7 1985-10-10
- Season 8 1986-10-16
- Season 9 1987-01-01
- Season 10 1988-09-01
- Season 11 1989-01-01
- Season 12 1990-09-01
- Season 13 1991-09-05
- Season 14 1992-01-01
- Season 15 1993-09-02
- Season 16 1994-01-01
- Season 17 1995-09-30
- Season 18 1996-09-28
- Season 19 1997-09-27
- Season 20 1998-09-26
- Season 21 1999-09-25
- Season 22 2000-09-23
- Season 23 2001-09-22
- Season 24 2002-10-10
- Season 25 2003-10-11
- Season 26 2004-10-09
- Season 27 2005-10-06
- Season 28 2006-10-05
- Season 29 2007-10-04
- Season 30 2008-10-02
- Season 31 2009-10-10
- Season 32 2010-10-07
- Season 33 2011-10-06
- Season 34 2012-10-04
- Season 35 2013-10-05
- Season 36 2014-10-04
- Season 37 2015-10-03
- Season 38 2016-09-30
- Season 39 2017-10-05
- Season 40 2018-10-06
- Season 41 2019-10-05
- Season 42 2020-10-04
- Season 43 2021-09-30
- Season 44 2022-09-29
- Season 45 2023-09-28
- Season 46 2024-09-26
- Season 47 2025-09-25
Season 47 Episode
- Season 21 The Billerica House - 1
- Season 21 The Billerica House - 2
- Season 21 The Billerica House - 3
- Season 21 The Billerica House - 4
- Season 21 The Billerica House - 5
- Season 21 The Billerica House - 6
- Season 21 The Billerica House - 7
- Season 21 The Billerica House - 8
- Season 21 The Billerica House - 9
- Season 21 The Billerica House - 10
- Season 21 The Billerica House - 11
- Season 21 The Billerica House - 12
- Season 21 The Billerica House - 13
- Season 21 The Billerica House - 14
- Season 21 The Billerica House - 15
- Season 21 The Billerica House - 16
- Season 21 The Billerica House - 17
- Season 21 The Billerica House - 18
- Season 21 The Billerica House - 19
- Season 21 The Santa Barbara House - 1
- Season 21 The Santa Barbara House - 2
- Season 21 The Santa Barbara House - 3
- Season 21 The Santa Barbara House - 4
- Season 21 The Santa Barbara House - 5
- Season 21 The Santa Barbara House - 6
- Season 21 The Santa Barbara House - 7
This Old House - Season 21 Episode 4 The Billerica House - 4
5.60 30 minutes A full month after our last time on site, the foundation is just being completed, the construction schedule having fallen victim to a three-week soil cleanup process. With the complex, 30-corner foundation walls up, it's time for a proactive termite treatment beneath the slab, using a new class of chemical, that rather than acting as a barrier, allows termites to enter the treated zone unknowingly, upon which they die. Its continuing efficacy in the ground has been proven for seven years and counting. Before the slab is poured, the crew installs an underlayment of 2"" styrofoam insulation and a clip-in system for radiant heat - at half the price it was only a few years ago, Richard insists we put the tubing in every slab we pour, even if it isn't used right away. Then our host takes viewers to a Florida house built by a major insurance company to showcase tips for loss mitgation - everthing from sprinklers to kick-proof door jambs. Back at the site, the slab is poured, and homeowners Di
