
Ask This Old House — Season 4
The fourth season opens with a visit from landscaping contractor Roger Cook, who assists a homeowner in restoring a loosened flagstone within the mortar of his front walkway. Subsequently, Cook joins general contractor Tom Silva, plumbing a…
General contractor Tom Silva addresses a homeowner’s complaint of squeaking stairs and repairs a damaged baluster. Subsequently, joined by plumbing and heating specialist Richard Trethewey, landscaper Roger Cook, and host Kevin O'Connor, he…
Plumbing and heating specialist Richard Trethewey assists a homeowner in enhancing her drinking water quality with the installation of an under-sink filter. Subsequently, Trethewey and host Kevin O'Connor welcome water filtration expert Bil…
In the loft, landscaping contractor Roger Cook demonstrates to host Kevin O'Connor the proper way to repair a flat wheelbarrow tire. He also showcases a novel flat-free alternative. Next, general contractor Tom Silva assists a homeowner in …
In Grandview, Missouri, landscape contractor Roger Cook attends to a homeowner's struggling rose bush. Later, joined by general contractor Tom Silva, plumbing and heating specialist Richard Trethewey, and host Kevin O'Connor, they ponder th…
Landscaping contractor Roger Cook guides a young couple in constructing a raised garden bed from composite landscape timbers crafted with recycled plastic and sawdust. Later, in the loft, Cook displays a variety of other landscape timber op…
In this segment, general contractor Tom Silva demonstrates to a homeowner the proper technique for removing moss and lichen from a shaded roof, offering advice on preventing their return. Joining him are plumbing and heating specialist Rich…
In the loft space, general contractor Tom Silva offers host Kevin O'Connor a practical demonstration of circular saw technique. Next, plumbing and heating specialist Richard Trethewey installs a new outdoor faucet for a homeowner, utilizing…
The episode opens with plumbing and heating specialist Richard Trethewey addressing a viewer's query. He illustrates a clever way to preserve a tube of caulk using a simple wire nut, followed by a demonstration of an innovative caulk applic…
Landscaping contractor Roger Cook assists a couple in restoring order to an unruly privet hedge through careful rejuvenation pruning. Meanwhile, plumbing and heating specialist Richard Trethewey guides a homeowner in installing a laundry si…
Landscaping contractor Roger Cook and host Kevin O'Connor venture outdoors for a practical demonstration of snow removal equipment, learning the nuances of various snowthrowers and their proper operation. Later, back in the barn loft, Cook,…
Kevin O'Connor travels to Southern California, consulting with a local specialist to understand the best tools and techniques for window washing. Returning to the studio loft, he joins Roger Cook, landscaping contractor; Richard Trethewey, …
General contractor Tom Silva journeys to New York City's Lower East Side to assist a couple with a vinyl floor installation. Afterward, joined by plumbing and heating specialist Richard Trethewey, landscaping contractor Roger Cook, and host…
Kevin O'Connor travels to Minneapolis, Minnesota, to assist a couple who have discovered elevated levels of radon gas in their basement. He then demonstrates a selection of at-home radon testing kits, readily available at home centers and p…
Landscaping contractor Roger Cook travels to Dallas, Texas, to assist a homeowner with the installation of an economical in-ground sprinkler system. Afterward, Cook joins plumbing and heating specialist Richard Trethewey, general contractor…
In the spacious loft, general contractor Tom Silva demonstrates various hammers to host Kevin O'Connor, explaining their proper application. Next, plumbing and heating specialist Richard Trethewey assists a homeowner with the repair of a pr…
Plumbing and heating expert Richard Trethewey, alongside a specialist, addresses a residential well system for a homeowner, replacing both the pump and the pressurized well tank. Subsequently, general contractor Tom Silva assists another ho…
Landscaping contractor Roger Cook demonstrates to a homeowner the proper technique for transplanting a spruce tree that had been planted too close to her house. Afterward, Cook joins Richard Trethewey, plumbing and heating specialist; Tom S…
General contractor Tom Silva demonstrates to Kevin O'Connor the construction of a bespoke radiator cover. Subsequently, plumbing and heating specialist Richard Trethewey presents a selection of humidifiers before making a visit to a homeown…
Landscaping contractor Roger Cook and a specialist assist a homeowner in installing a granite marker for his driveway, ensuring visitors can more readily locate his residence. Afterwards, Roger joins plumbing and heating expert Richard Tret…
This episode focuses on practical ways to improve your home's energy efficiency. Plumbing and heating expert Richard Trethewey travels to Atlanta, assisting a homeowner with the installation of an instantaneous water heater – a solution for…
In the loft, plumbing and heating specialist Richard Trethewey demonstrates to host Kevin O'Connor how to repair damaged threads on a radiator, employing a drill and a specialized tap. Next, landscaping contractor Roger Cook assists a homeo…
General contractor Tom Silva assists a homeowner in replacing an interior hollow-core door with a more substantial and aesthetically pleasing solid-core model. Later, in the loft, Tom and host Kevin O'Connor dissect several doors, slicing t…
Plumbing and heating specialist Richard Trethewey assists a homeowner in choosing and installing a new dishwasher. Afterward, Trethewey joins general contractor Tom Silva, landscaping contractor Roger Cook, and host Kevin O'Connor as they p…
In the loft, tile specialist Joe Ferrante demonstrates to Kevin O'Connor the correct techniques for cutting various kinds of tile. Later, general contractor Tom Silva assists a homeowner in a basement prone to moisture by installing a sump …
Plumbing and heating specialist Richard Trethewey travels to Kansas to assist a homeowner with the installation of a mini-split air conditioning unit. Afterward, Trethewey joins general contractor Tom Silva, landscaping contractor Roger Coo…


