Home Repair Guides — Diagnose Before You Call (or Pay) | Toolbox

Home Repair Guides

Quick diagnosis guides for the 30 most common home repairs. Find out if it's a $5 DIY fix or something that needs a pro — in under 2 minutes.

DIY-Safe Check Before DIY Call a Pro

Plumbing & Water — 9 guides

Faucet Leaking?

How to diagnose the problem in 5 minutes

Sink Won't Drain?

What to try before calling a plumber

Shower Draining Slowly?

Quick diagnosis and fix guide

Toilet Won't Stop Running

How to fix it in minutes

Toilet Won't Flush Properly?

Here's what to check

Low Water Pressure?

Could be simple — or a bigger issue

Pipe Leaking Under the Sink?

How to tell if you can fix it

Burst Pipe or Major Leak?

What to do right now

Water Heater Not Working

Is it safe to troubleshoot yourself?

Electrical — 7 guides

GFCI Outlet Keeps Tripping

Is it dangerous?

Circuit Breaker Keeps Tripping

What it means and what's safe

Lights Flickering?

When it's a bulb and when it's a hazard

Outlet Not Working?

How to diagnose a dead outlet

Outlet Feels Warm or Discolored

Stop and read this

Exposed Wiring in Your Home?

What to do (and not do)

Electrical Burning Smell?

This is an emergency

Appliances — 8 guides

Refrigerator Not Cold Enough?

Quick diagnosis checklist

Dishwasher Won't Drain?

What to check before calling for repair

Washer Won't Drain or Spin?

Diagnosis guide

Dryer Not Heating?

What's safe to check

Dryer Making Loud Noise?

What each sound means

Garbage Disposal Humming?

Quick fix guide

Stove Burner Won't Heat?

Electric and gas diagnosis

Microwave Not Heating?

What you can (and can't) fix

Heating & Cooling — 4 guides

AC Not Cooling?

Troubleshoot before spending $300+

Furnace Not Turning On?

Safety check guide

HVAC Making Loud Noise?

What each sound tells you

Thermostat Not Responding?

Quick diagnosis guide

Structural & Exterior — 2 guides

Roof Leaking?

How to assess damage and next steps

Foundation Crack?

Cosmetic or serious — how to tell

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