Basic DIY Repairs Every Homeowner Should Know

Not every household problem needs a professional callout. A handful of basic repair skills can save both money and the inconvenience of waiting days for an appointment, and most of them require only a small set of tools and a bit of patience. Here are the repairs worth learning first, along with when it’s genuinely time to call someone instead.

Fixing a running or leaking toilet

A toilet that keeps running after flushing is almost always caused by the flapper valve inside the tank not sealing properly, or the fill valve being set too high. Lift the tank lid, watch what happens during and after a flush, and check whether the flapper is sitting flush against its seat. A worn flapper is inexpensive to replace and usually just lifts out and clips back in without special tools.

Patching small holes in drywall

• For a small nail hole, a dab of spackle and a putty knife is usually all that’s needed
• For a larger hole, a self-adhesive mesh patch bridges the gap before spackle is applied over the top
• Let each layer dry fully before sanding smooth and applying paint to match

Unclogging a slow drain

Before reaching for chemical drain cleaners, which can be harsh on older pipes, try a plunger or a simple drain snake first. Most household clogs in sinks and showers are caused by hair, soap residue, or grease buildup near the surface, well within reach of a basic snake. Running hot water through the drain regularly afterward helps prevent the same buildup from returning quickly.

Replacing a light switch or outlet cover

Swapping a cracked outlet cover or a basic light switch is one of the more approachable electrical repairs, as long as the breaker for that circuit is switched off first and verified with a simple tester before touching any wires. Take a photo of the existing wiring before disconnecting anything, so you have a clear reference when reconnecting the replacement.

Fixing a squeaky door hinge

A few drops of household oil or lubricant on the hinge pin, worked in by opening and closing the door several times, resolves most squeaks within minutes. If the squeak persists, the hinge screws may have loosened slightly, allowing the door to shift against the frame.

Resetting a tripped circuit breaker

A tripped breaker usually means a circuit was overloaded, not that something is broken. Switch the breaker fully to off before flipping it back to on, and if it trips again immediately, that’s a sign of a deeper issue — likely a faulty appliance or a wiring problem — and worth bringing in an electrician rather than repeatedly resetting it.

Know when to stop and call a professional

Basic repairs are satisfying and genuinely save money, but certain jobs carry real risk if done incorrectly — major electrical rewiring, gas line work, structural issues, or anything involving a home’s main water shutoff beyond a simple valve. When a repair involves safety systems or goes beyond surface-level fixes, the cost of a professional is almost always worth the peace of mind.