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40 Things You Should Know About a Home By Age 40

Home repair is learned over time

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How to Fix a Loose DoorknobFamily Handyman

How to Fix a Loose Doorknob

Tighten a loose doorknob that has hidden screws. Just pop off the cover plate and then all you need is a screwdriver. And this is how you do it.
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Touch-up Without CleanupFamily Handyman

Touch-up Without Cleanup

No need to mess up a brush to fix a wall wound. Just dip an old washcloth in the paint and throw it away when you're done. A washcloth leaves the same texture as a paint roller, so your repair will blend nicely. Here are tricks for storing paint brushes overnight.
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How to Flush the Toilet When the Power's Out: Flush With a BucketFamily Handyman

How to Flush the Toilet When the Power's Out: Flush With a Bucket

Even if a power outage stops your well pump or the city water supply, you can still flush the toilet. Dump a couple gallons into the bowl or fill the toilet tank. This works just as well as the usual flush, but won't refill the bowl. Still clogged? Here's our guide for how to unclog a toilet.
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Deal with DrainageFamily Handyman

Deal with Drainage

Water has the potential to cause problems in any home, and the skills to deal with drainage issues can be a huge money saver in the long run. Extending downspouts is an easy fix, but knowing how to make a drainage plan is going to provide long-term results for minimal effort. Plus: Permanent Fixes for Damp Basements
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Understand Electrical

Understand Electrical

Electrical overloads are easily created but can be incredibly dangerous for your home and everyone in it. A solid understanding of how the electrical circuits in your home function will not only make you a master homeowner, it will allow you to make as many DIY improvements as you want while maintaining the integrity of your electrical system. Here's how. Plus: The 8 Most Common Electrical Code Violations DIYers Make
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Test the Sump Pump or Risk a FloodFamily Handyman

Test the Sump Pump or Risk a Flood

It's easy to forget about your sump pump, but it's important to make sure it's in good working order. If you don't, you could end up like the homeowner who returned from a weekend trip to discover his entire basement floor covered in 1/2 in. of water. After shutting down the power, he waded over to the sump pump and noticed it wasn't working. Upon closer inspection, he realized that the cable attached to the float must have gotten tangled somehow. It took him two seconds to untangle the cable, and then he spent the next 15 hours dragging out waterlogged carpet, running the wet/dry vac and moving fans around. To avoid a similar disaster, be sure your pump has a vertical float switch. Also, check your pump at least a couple times a year by dumping water into the basin to make sure everything is working properly.
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Clean Dryer Vents or Waste Energy and Risk a FireFamily Handyman

Clean Dryer Vents or Waste Energy and Risk a Fire

A plugged dryer vent will cause your dryer to run inefficiently, and that's bad. A plugged dryer vent could also cause a house fire, and that could be deadly! Dryers that are centrally located in houses are most prone to plugging because of the longer ducts. Excess lint is only one reason ducts get clogged; nesting pests and stuck exhaust hood flappers can also cause backups. Stronger odors and longer dry times are two signs your vent is plugged. You'll have to remove the vent from the back of the dryer to clean it. Suck debris from the ducts with a wet/dry vac, or ream them out with a cleaning kit that includes a brush on a long flexible rod that attaches to a power drill. The kits are available at home centers. If your ducts need replacing, get smooth metal ducts, which will stay cleaner longer than the rough corrugated surface of flexible ducts. Avoid plastic ducting altogether; it can be a fire hazard. Plus: Slash Heating Bills
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How to Stop Under-the-Door Air LeaksFamily Handyman

How to Stop Under-the-Door Air Leaks

If you can feel the breeze and see daylight under your entry door, it's costing you big-time. It also means you need to adjust your door threshold or install a new door sweep. Door sweeps start at $10. The hardest part about replacing them is usually taking off the door. Start by adjusting the threshold. Newer versions have screws that raise and lower them. Turn all of the threshold screws until the door opens and closes without much drag and any draft is eliminated. If that doesn't work, or your threshold doesn't have adjustment screws, replace the door sweep. Close the door and pop out the hinge pins with a pin punch to remove the door. Set the door on a work surface and remove the old door sweep. Caulk the ends of the door, then install the replacement sweep. Some sweeps are tapped into place and stapled along the door bottom; others are screwed to the side along the door bottom. If a drafty sliding patio door is your problem, here's how to fix it.
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How to Sharpen Lawnmower BladesFamily Handyman

How to Sharpen Lawnmower Blades

Sharpening the blades is an important part of a lawn mower tune up. The hardest part about sharpening a lawnmower blade is detaching the blade safely from your lawnmower. Once the blade is safely removed and held in a vise, a good file is all you need to add an edge to the blade. Just remember to make sure that you are sharpening the right side of the blade! When detached, it can sometimes be difficult to tell which way the sharpest edge is facing.
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Suck Out Drain ClogsFamily Handyman

Suck Out Drain Clogs

A wet-dry vacuum slurps clogs out of plugged drains. Even plumbers use this trick sometimes. If you need to increase suction, seal around the nozzle with a wet rag.
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Sizing a Ceiling FanFamily Handyman

Sizing a Ceiling Fan

Ceiling fans can save energy and money for heating and cooling. A quick rule of thumb for sizing them matches the diameter of the fan with the largest dimension of a room. For 12 ft. or less, use a 36-in. fan. For 12 to 16 ft., use a 48-in. fan. For 16 to 18 ft., use a 52-in. fan. And for dimensions larger than 18 ft., install two fans. Placement of a ceiling fan for adequate air circulation is 7 ft. above the floor with the blades 8 to 10 in. from the ceiling. And to move more air at low speed, a fan with five blades is best. Regarding energy savings, research has proven that ceiling fans can save energy during the cooling season by creating a gentle breeze. You get your savings then by raising your thermostat by a minimum of 2 degrees. This decreases air conditioning energy used by 10 to 15 percent, or 5 to 8 percent per degree. By reversing your fan (so it runs clockwise) during winter, you pull heat from the ceiling and push it down to the floor for more even heat.
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Tennis Ball Parking GuideFamily Handyman

Tennis Ball Parking Guide

If you have ever wondered why a tennis ball was hanging from your friend's garage ceiling, here's why. To park your car in perfect position every time, hang a tennis ball from the garage ceiling so it just touches the windshield. It will show you precisely where to stop. No guesswork! Here are 16 Easy Garage Space-Saving Ideas.
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How to Seal Outlets and Ceiling Boxes

How to Seal Outlets and Ceiling Boxes

The tiny gaps around outlets on exterior walls and ceiling boxes let cold air in (and warm air out). Sealing these areas takes just half a day and will help cut down on drafts (and your heating bill!).
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How to Fix Leaks and DripsFamily Handyman

How to Fix Leaks and Drips

Two annoying causes of wasted money and water are leaky taps and running toilets. In fact, according to the United States Geological Survey, a leaky faucet at one drip per second equals a loss of five gallons of water every day! Fortunately, both of these are easily remedied by any homeowner and won't take long to complete. Learn how to fix a leaky faucet, and how to fix a running toilet. Plus: How to Find and Fix Roof Leaks
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How to Change LocksTab62/Shutterstock

How to Change Locks

Unfortunately, lost keys are a part of life. But why waste money on a locksmith when you can re-key a lock yourself? You can change your locks by removing the cylinder and adjusting the pins. Never worry about the cost of a new lockset again. Here's how to master this skill. Plus: Upgrade Door Locks With Keyless Entry Systems
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Paint Like a Pro

Paint Like a Pro

The ability to do a good paint job is a skill that, once learned, will save you gobs of money over the course of your home ownership. While it takes patience and detail, fresh paint can make your home seem larger, cleaner and more modern—not too bad for a few brushes, paint and a weekend or two. Check out our collection of painting tips aimed at making your painting projects look like you hired a pro.
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shutterstock_175554785 fix a running toiletLolostock/Shutterstock

How to Fix a Running Toilet

There is a four-step strategy for fixing a running toilet. The fix will not only give your toilet a stronger flush, it can lower your water bill and it’s a task you should know how to do by age 40.

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shutterstock_519670600 living room wood floors feetg-stockstudio/Shutterstock

How to Fix Squeaky Floors

Silence those squeaky floors. This quick fix for silencing floor squeaks will take you just a day. Bonus: You don’t need any special tools.

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FH03DJA_02848_017 fix a crack in drywallFamily Handyman

How to Fix a Crack in Drywall

It doesn’t matter if your son’s basketball got away from him or you nicked the wall moving a piece of furniture—at some point you’ll be faced with a crack in the drywall. You’ll need a taping knife and utility knife, along with some drywall tape, pre-mixed joint compound and setting type compound to fix the crack so it doesn’t come back. By age 40 you’ve probably had to do some drywall repair at some point.

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FH98APR_01296006 fix cracked groutFamily Handyman

How to Fix Cracked Grout

Even the best tile jobs will succumb to cracking grout at some point. If the grout between your bathroom floor tiles is crumbling, there is a quick fix that will save you from tearing up the floor and starting over.

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shutterstock_342891008 fix washing machine repairDragon Images/Shutterstock

How to Fix an Unbalanced Washing Machine

You threw a heavy load of towels in the washer and now it’s unbalanced. With a level, pliers and a pry bar, you can have the washer balanced again in five minutes. By age 40 you’ve probably grown tired of calling a repair man for the job.

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shutterstock_297564521 repairman fix refrigeratorAndrey_Popov/Shutterstock

How to Fix Common Refrigerator Problems

Maybe your refrigerator isn’t cooling as well as it should, or perhaps the ice maker suddenly stops working. Many refrigerator issues are simple DIY fixes.

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FH08OCT_492_06_035 Water Heater Pilot Light Family Handyman

How to Fix a Water Heater Pilot Light

There could be a few reasons the pilot light on your water heater goes out. A common cause is a bad thermocouple, which shuts off the gas to the pilot light. This simple fix will cost you $20, if you do it yourself.

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HVACFamily Handyman


Annual maintenance wards off many HVAC problems. If you do have a failure, you can usually fix it yourself. If your AC unit is working but has become noisy, you can fix that, too! If it's your furnace that needs attention, you can perform routine maintenance, and handle simple repairs yourself. Plus: Learn how to choose furnace filters and how to replace furnace filters yourself.
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Garbage Disposal RepairFamily Handyman

Garbage Disposal Repair

A garbage disposal is a bit scary when it's turned on and the blades are noisily chopping up kitchen waste. But, if your disposal gets stinky, fear not. It's easy to clean out the gunk and get rid of the smell. If the splash guard needs replacing, you can do that in 20 minutes! If you need to replace the entire disposal you can replace it yourself.
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Light SwitchesFamily Handyman

Light Switches

Don't automatically avoid a project just because it involves electricity: Replacing a standard light switch with a dimmer switch is a very doable DIY project, as is replacing a three-way switch.
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Repairing DecksFamily Handyman

Repairing Decks

Many things can go wrong with a deck. Missing screws, warped boards, squeaky nails, wobbly railings, fortunately, many of these problems are well within the scope of the average DIYer. Inspect your deck for seven common deck problems and then repair whatever needs fixing.
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Fix WindowsFamily Handyman

Fix Windows

Obviously you can't glue broken glass back together. But, for windows that get stuck, let in drafts or have moisture issues, there are DIY solutions. Fix old windows, double-hung windows, window glass glazing and screens. You can also stop window drafts and learn how to avoid and remove window condensation. If you want to take on a larger task, you can even replace your windows!
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How to Replace a Toilet

How to Replace a Toilet

Whether you're replacing a toilet or removing the old one for a remodel and repairing it afterward so it doesn't leak, these DIY home improvement tips will help you do it faster and with fewer problems.
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Foam a Loose ShowerheadFamily Handyman

Foam a Loose Showerhead

Here's an easy home fix that can be used beyond the bathroom. Fix a wobbly showerhead, or any wobbly pipe, with a few squirts of expanding foam. The foam encases the pipe in the wall and locks it into place, eliminating the wobble, so your showerhead will work like new. Can you think of an easier home fix?
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Solution for a Small LeakFamily Handyman

Solution for a Small Leak

Some roof leaks are tough to locate. Sometimes the water shows up at a ceiling spot distant from the leak. If your ceiling has a plastic vapor barrier between the drywall and the attic insulation, push the insulation aside and look for flow stains on the plastic. Often water runs to openings in the vapor barrier, such as at ceiling light fixtures.

If you can't see any telltale flow marks, and since the stain is fairly small, look at the underside of the roof for 'shiners.' A shiner is a nail that missed the framing member, in this case when the carpenter nailed the roof sheathing to the rafters. Moisture that escapes into the cold attic from the rooms below often condenses on cold nails. Sometimes you can spot this if you climb up into your attic on a cold night. The nails will look white because they're frosted. When the attic heats up a bit during the day, the frost melts and drips, then the nails frost up at night again and so on. The solution is to simply clip the nail with a side-cutting pliers.

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Lubricate a Lock with a Pencil

Lubricate a Lock with a Pencil

Don't give up on a sticky lock, you can fix it with a pencil! Simply rub the teeth of your key with the pencil, coating it generously with graphite. Insert the key in the lock, which will deposit the lubricant inside. Repeat as needed until the key glides in smoothly.
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Fix a Broken Light Fixture

Fix a Broken Light Fixture

Replacing a light fixture is one of those DIY jobs that's theoretically quick and simple, but often becomes a three-hour series of problems. We talked with two of our master electricians. They've seen all of those frustrations and offered these tips to help DIYers through the job quicker and safer.
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Fix a Shutoff ValveFamily Handyman

Fix a Shutoff Valve

There's nothing worse than starting a sink or toilet repair only to find that the shutoff valve won't shut off. Some shutoff valves are easy to replace. For those that aren't, turn off the main water valve, remove the packing nut, and then unscrew the stem and take it to the hardware store to find a replacement washer. Clean any grit out of the valve body and pop on the new washer. The valve will work like new.
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air conditionerFamily Handyman

Air Filter

It is instinctual for homeowners to contact an HVAC tech when they notice irregularities in their cooling or heating system. These irregularities could be a direct result of a dirty or clogged air filter. We encourage homeowners to check their filters and replace if necessary. It’s also beneficial for homeowners with pets, carpet, or for homes near fields or construction zones to have multiple filters for convenient replacement.

Pro Tip: Mark your calendars! 1-in. filters should be changed every month, 2-in. filters should be changed every 2 months and 4 to 5-in. filters should be changed every 6 to 12 months.

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shutterstock_301521827 washer and dryer closetArtazum/Shutterstock

Clothes Dryer Repair Guide

Most dryer problems can be fixed in an hour with a few basic tools and a continuity tester or multimeter, and you can do the work yourself with these simple instructions.

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Restore Free Flow to a FaucetFamily Handyman

Restore Free Flow to a Faucet

When a kitchen or bathroom faucet loses pressure or starts spraying to the side, it's usually due to a dirty aerator screen. Luckily, cleaning a screen is an easy job. Start this fix by closing the drain plug (so you don't drop parts down the drain). Then remove the aerator using a rag or masking tape so you don't mar the finish with your pliers. To remove the sand and other deposits, soak the aerator in vinegar, then scrub it with a toothbrush. This usually solves the problem. If you have to disassemble the aerator to clean it, lay out the parts in the order you removed them so you can reassemble them correctly. Still having issues? Do a showerhead deep clean.
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Family Handyman

How to Adjust Oven Temperatures

If your oven cooking times are off, recalibrate your oven temperature to match an accurate oven thermometer. The procedure is in your oven’s instruction manual. Learn how to adjust oven temperatures.

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Family Handyman

Electric Stove Repair

You can solve most electric range burner problems yourself and avoid the expensive service call. It’s quick and easy to replace a burner or bad burner socket. Read the electric stove repair tips.

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How to Remove Carpet Yourself

How to Remove Carpet Yourself

Depending on where you live, an installer will charge $3 to $5 per square yard for tear-out. By removing the carpet from a 12 x 15-ft. room, you'll save $60 to $100 for an hour's work. Talk to your installer to find out exactly what you'll save by doing it yourself.