Plumbing How To & DIY
Improve the value of your home by discovering our plumbing step-by-step tips & ideas.
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How to Replace a Whole-House Plumbing Trap
This Old House plumbing and heating expert Richard Trethewey shows tools and techniques for fixing corroded cast-iron pipe.
How To Repair a Shower Anti-Scald Pressure Balancer
Dealing with changing shower temperatures? Read our guide to fix your anti-scald pressure balancer and restore consistent water temperature.
How to Replace a Smelly Dishwasher Drain Hose
This Old House plumbing and heating expert Richard Trethewey comes up smelling sweet by installing a new discharge hose.
How To Fix a Wobbly Toilet
This Old House plumbing and heating expert Richard Trethewey helps a homeowner diagnose and repair a wobbly toilet.
How to Repair a Water Softener
Learn how to renew an old water softener with This Old House plumbing and heating contractor Richard Trethewey in this helpful video.
How to Install Handheld Shower Head
Follow these simple steps to replace your standard showerhead with one that’s more convenient, versatile, and luxurious.
How to Clear a Clogged Bathtub Drain
This Old House plumbing and heating expert Richard Trethewey shows how to fix a slow draining tub.
How to Find and Hire a Qualified Plumber
Need a plumber? Avoid getting soaked by hiring an experienced, licensed pro. Here’s what you need to know before hiring a plumber.
How To Change a Bathroom Faucet
Need to replace your bathroom faucet? Check out our step-by-step guide on how to change your bathroom faucet and give your bathroom an updated look.
How to Install a Kitchen Sink
Interested in adding a new kitchen sink? We’ve created a 10-step guide on how to install a new kitchen sink like a pro. Read on to learn more.
How To Fix a Slow-Draining Tub
Dealing with a slow-draining shower or tub? Learn more about the causes of slow-draining issues and discover DIY methods to fix your drain quickly.
How To Retrofit Radiant Heating in a Bathroom
Ask This Old House plumbing and heating expert Richard Trethewey helps a homeowner install a radiant floor system in their bathroom.
How To Repair a Leaking Shower Valve
Learn how to repair a leaking shower valve or upgrade to a pressure-balanced valve in this guide from plumbing expert Richard Trethewey.
How to Get Hot Water with a Recirculating Pump
Watch as This Old House plumbing and heating expert Richard Trethewey explains how a recirculation system can save energy, money, and time.
How To Clean a Clogged Faucet Aerator
Follow our step-by-step guide to clear a clogged faucet aerator and restore your faucet’s water flow and pressure.
How To Use a Plunger
Learn how to pick out the best plunger and use it properly when you encounter a clog in the bathroom.
How To Replace a Tub Drain
Plumbing expert Richard Trethewey shows a homeowner how to replace a bathtub drain when his old 1950s tub stops draining properly.
Dishwasher Maintenance: Keep Your Appliance Running Smoothly
In this guide and video, plumbing and heating expert Richard Trethewey shows how to deep-clean a dishwasher and repair its components.
How To Fit Copper Pipes
Explore different methods for making solid, watertight connections between copper pipes—both with and without solder—in this guide.
Step by Step Guide for How to Remove a Bathtub Drain
If you’re looking to replace an old bathtub drain, it’s not difficult to do the job yourself. Read these steps to learn more.
How To Pump Water Out Of Your Basement
Flooding in your basement can damage belongings and your foundation. Follow this quick guide to learn how to pump water out of your basement.
Step by Step Guide to How to Snake a Clogged Toilet
If your clogged toilet can't be fixed with a plunger, don't panic. Another tool can help you address the problem — a toilet snake.
Everything You Need to Know to Install a Garbage Disposal
Garbage disposals are a tool to help prevent pesky kitchen odors, as well as stop food from going down the pipes. We discuss how to install a garbage disposal.
How to Replace a Bathroom Faucet
Need to update your bathroom sink faucet? Watch this DIY Smarts as Ask This Old House plumbing and heating expert Richard Trethewey demonstrates how to replace a bathroom faucet.
How To Bleed a Radiator
Have you noticed that one or more of your radiators isn’t warming up? Before you spend the money on a plumber, try this easy fix.
A Comprehensive Guide to Removing Air in Water Pipes
If air is in your water pipes, you may be able to easily fix it yourself. Learn how to tell if air is in your plumbing system and how to get rid of it.
The Best Methods to Unclog a Toilet Without a Plunger
Got a toilet clog, but no plunger in sight? Read this to learn how to unclog a toilet using only simple household items you probably have.
How To Clean a Dryer Vent
Excessive dryer lint buildup can pose a fire hazard, so it’s important to clean your dryer vent at least once a year.
How To Install a French Drain
Looking to install a French drain on your property? Check out our guide for step-by-step instructions for installing a French drain in your yard.
How To Fix A Dishwasher That’s Not Draining
Dishwasher not draining? Try these easy DIY solutions before calling a professional.
How To Connect Steel Gas Pipes
Are you having gas piping work done? Learn about a new method professionals use to connect gas pipes from This Old House's Richard Trethewey.
How To Replace Pedestal Sink Parts
Ask This Old House plumbing and heating expert Richard Trethewey helps a homeowner replace all the plumbing components in his pedestal sink.
How to Increase Water Pressure on City Water
Having issues with your water pressure? Here’s how to troubleshoot and improve your water pressure if you’re on city water.