How to Do Basic Home Repairs: A Weekend Guide That Works
You can handle most basic home repairs yourself with a small toolkit and an hour or two. Dripping faucets, clogged drains, small drywall holes and drafty doors all sit inside a beginner's range, and each one costs tens of dollars to fix rather than hundreds.
On this page (9 sections)
- Remember this
- Before You Start: Tools and Diagnosis
- How to Do Basic Home Repairs: A Dripping Faucet
- Patching Drywall: Small Holes and Bigger Gouges
- Unclogging Drains: Sinks, Tubs and Toilets
- Caulking and Weatherstripping: Sealing the Gaps
- Appliance and Ventilation Maintenance
- When to Call a Professional
- FAQ
Part of our guide on non-rotating mount for gym bar
Fast facts
- Average Cost Savings
- Doing a small job yourself usually saves 50 to 80 percent of the trade rate, with the widest gap on labour-heavy work like drywall and caulking.
- Time Investment
- Most repairs take 20 to 90 minutes, plus drying time. Patch a drywall hole overnight and you have three coats to do in a weekend.
- Tool Budget
- $60 to $120 covers the starter kit. $150 to $300 adds a cordless driver, sockets and a pipe wrench.
Remember this
- A $60 to $120 screwdriver-and-pliers kit covers most of the jobs in this guide.
- Diagnose before you disassemble. Ten minutes of checking saves an afternoon and a return trip to the store.
- Cleaning condenser coils, replacing vent filters and flushing a water heater keep expensive repairs from starting.
Before You Start: Tools and Diagnosis
You fix the right fault once. Guess wrong and you burn an afternoon plus a return trip to the store.
Spend ten minutes diagnosing before you touch a tool. Water stains, running toilets, squeaky floors and appliances that cycle on and off all point to specific faults, and each one narrows the job to a couple of parts.
Lay a drop cloth, wear eye protection when you cut anything, and kill the breaker for any electrical work. Walls get dirty and fingers get cut.
- Phillips #2 and flat 3/16-inch screwdrivers cover most household screws. Add a 1/4-inch nut driver for faucet supply nuts.
- Adjustable pliers and a 10-inch adjustable wrench handle supply lines. A basin wrench reaches faucet nuts where the handle blocks the spanner.
- A 25-foot drain cable clears a blocked branch line. A plunger cannot reach past the trap.
- Spackle, a putty knife, 120 and 220 grit sandpaper, painter's tape and a small roller cover patching.
How to Do Basic Home Repairs: A Dripping Faucet
A dripping faucet wastes water and shows up on the water bill. Most single-handle and two-handle taps drip from the same place, the compression washer at the base of the spout. We go through engine mount replacement guide step by step elsewhere on the site.
Shut off the supply valves under the sink first. If those valves are missing or seized, close the main shutoff and expect a longer job.
Budget $2 to $8 for a washer set and $15 to $45 for a cartridge. The whole job runs 20 to 40 minutes once those valves shut off cleanly.
- Replacement washers come in 3/8-inch and 1/4-inch sizes. Match the old one with a caliper or the number stamped on the handle.
- Turn the retaining nut off with the tap handle facing forward. The notch or arrow on the nut shows which way it loosens.
- If the drip continues after a new washer, the valve seat is worn. Replace the cartridge instead of stacking parts onto a bad seat.
- A stripped stem on a 20-year-old tap needs a stem kit, not a washer. Those parts run $10 to $25.
Patching Drywall: Small Holes and Bigger Gouges
Match the fix to the damage. A nail pop or a hole smaller than a quarter inch takes spackle. Anything larger takes a patch, mesh tape and a second coat.
A patch never disappears. It just stops being noticeable.
Worked example. A 2-inch hole around a doorstop: cut a square slightly larger than the hole, cut a matching piece of drywall, back it with a strip of plywood screwed to the studs, tape the seams, then skim two thin coats. Let each coat dry 12 to 24 hours. Sand the first pass with 120 grit and the second with 220 grit.
Buy a small sheet of drywall for the patch. A 2 by 2 foot piece runs $6 to $12 and comes in the same thickness as most interior walls, usually 5/8 inch in older homes and 1/2 inch in newer ones.
- Small holes: press spackle in with a putty knife, let it dry, sand flush, prime, paint. About 30 minutes of work plus drying.
- Between 1/4 inch and 2 inches: cut a square, back it with a wood patch, apply setting-type compound, let it harden, skim a second coat.
- Over 2 inches: cut back to the studs and rehang the whole section. Compound spanning a wide gap cracks.
- A brown, soft or bulging patch means water is still in the wall. Painting over it hides the symptom and traps the leak.
Unclogging Drains: Sinks, Tubs and Toilets
Most sink clogs sit in the trap, 6 to 18 inches below the strainer. A plunger shifts air pressure and dislodges the mass. A cable breaks it up.
Fill the basin with water before plunging. The air needs somewhere to go.
Chemical drain openers work on grease and soap, but they eat older brass and cast iron traps and leave a residue that catches the next clog. Reach for the plunger first.
- Remove the stopper or drain plug before plunging. A sealed sink wastes the effort.
- Use a flange plunger on toilets, not a cup plunger. The flange folds up into the bowl and seals the outlet.
- Never put a wire hanger into a garbage disposal. Set the disposal wrench on the hex nut underneath and turn it with the power off.
- Toilets that clog again and again need a camera inspection. A root intrusion or a sag in the line shows up as a recurring blockage.
Caulking and Weatherstripping: Sealing the Gaps
Drafts and leaks around the house come down to gap size. As a rule of thumb, fill gaps from 1/4 inch to 3/8 inch. Wider gaps need backer rod or expanding foam behind the caulk.
Strip out the old caulk first. New caulk laid over old caulk peels within a year.
Measure a door gap with a ruler and a dollar bill. Slide the bill under the door. If it drags with slight resistance, you have about a 1/8 inch gap.
- Cut the old bead out with a utility knife, pull it, then wipe the surface with denatured alcohol.
- Lay a continuous bead with no gaps. Stop the nozzle before you lift it.
- Tool the bead with a wet fingertip or a caulk tool inside the working time on the label, usually 5 to 10 minutes.
- Use kitchen and bath silicone with a mildew-resistant label in wet rooms. Use paintable acrylic latex on exterior trim.
Appliance and Ventilation Maintenance
Most expensive appliance repairs start as maintenance that got skipped. Dusty condenser coils, a clogged dryer vent and a loaded vent filter all stretch the runtime.
Vacuum the refrigerator coils every 6 to 12 months. On coil-style fridges they sit behind the front grille, on older units on the back.
Flush the water heater once a year and test the temperature pressure relief valve. Old sediment makes the tank work harder, and a stuck valve is a hazard.
- Replace a 1-inch furnace filter every 1 to 3 months and a thicker media filter every 3 to 6 months. A gray filter is past due.
- Clean the dishwasher filter every 1 to 2 months. A spray arm that will not spin leaves food on the dishes.
- Replace washing machine supply hoses every 3 to 5 years. Braided stainless hoses outlast rubber ones.
- Listen for a running toilet. A bad flapper can waste 30 to 200 gallons a day, which runs $100 to $500 a year depending on your water rate.
When to Call a Professional
Some jobs need a license, a permit and a safe pair of hands. Gas lines, electrical panels, the roof, structural framing and anything touching refrigerant belong to a pro.
If a job reaches the point where you cannot explain why each step is safe, stop. A mistake on gas or wiring costs more than the repair you were trying to avoid.
- Anything on the gas system, including a water heater hookup.
- Panel work, new circuits and any wiring in an attic or crawlspace.
- Roof penetrations and flashing above the first floor line.
- Removing a wall that carries load. Find a joist with a stud finder, or knock and listen for solid wood.
Basic home repairs are within reach for anyone willing to read the manual and measure twice. Fix the drip, patch the hole, clear the drain, and the house keeps its shape for a fraction of the trade rate.
FAQ
How do I tell an active leak from an old ceiling stain?
Cut a 2-inch square in the middle of the stain and look. A dry, brown, crumbly patch means the leak has stopped. Dark edges, a musty smell or soft drywall mean water is still in there, so fix the roof or the supply line before you patch. Mark the wet edge with a pencil and check it weekly to see whether it grows.
What tools do I need before starting any of these jobs?
A $60 to $120 kit covers nearly everything here: flat and Phillips screwdrivers, adjustable pliers, a 10-inch wrench, a tape measure, a utility knife, a putty knife and a 25-foot drain cable. Add a cordless driver when you start hanging drywall or driving long screws.
Should I use chemical drain cleaner on a clogged sink?
Try a plunger, then a cable. Caustic cleaner works fast on grease and soap, but it attacks older brass traps and cast iron, and the residue catches the next clog. If you use it, pour half a bottle, wait 30 minutes and flush with hot water. Never mix drain cleaner with bleach.
How long should a drywall patch dry before you paint it?
Setting compound hardens in about 45 minutes, but it needs 12 to 24 hours to dry all the way through. Paint on damp compound blisters. Check the back of the patch. It should feel room temperature, and the paper should not wrinkle when you press it.
How much of a repair can I do without a permit?
Cosmetic work such as patching drywall, replacing a faucet washer and caulking needs no permit in most places. Anything touching electrical, gas, supply lines inside walls, or the structure does. Check your local building department, because the rules come from your city rather than a national standard.
