Troubleshooting by Symptom

Start from what's actually happening — the smell, the sound, the sluggish drain, the dead outlet. 150+ symptom-first pages route you to the right fix or the right kind of pro.

80+

Symptoms

⚠ Emergency protocols 8 pages

If any of these are happening right now, follow the emergency protocol first. These pages carry no ads and no affiliate links — they exist to help in a crisis.

Rotten egg smell (gas leak protocol) ⚠ 911 CO detector alarming — evacuate protocol ⚠ 911 Buzzing noise from electrical panel ⚠ 911 Water in electrical panel ⚠ 911 Water in outlet box ⚠ 911 Wet spots on ceiling after storm ⚠ 911 Puddle by water heater ⚠ 911 Bird nest in dryer vent (fire risk) ⚠ 911

Plumbing symptoms 13 pages

Water where it shouldn't be, drains that won't drain, smells, and pressure problems.

No hot water anywhere in house Water pressure low throughout house Whole house smells like sewer Sink drains slowly Tub drains slowly Sink gurgles when tub drains Toilet bubbles when shower runs Kitchen sink backing up into other drain Basement drain backing up Slow drains throughout house Sudden high water bill Toilet water level too low Toilet water level too high

Electrical symptoms 10 pages

Everything electrical is high-risk. These pages route to contractor-reviewed diagnostic content. When in doubt, call a licensed electrician.

Circuit breaker won't reset Pro Half the outlets dead in one room Pro All outlets dead in one room Pro Lights dim when appliance runs Pro Lights flicker throughout house Pro Smoke detector chirping randomly Electricity bill spike Ceiling fan wobbling Ceiling fan clicking noise Doorbell rings randomly

HVAC & appliance symptoms 16 pages

Furnace, AC, thermostats, water heaters, and major appliances behaving badly.

Heater won't turn on Furnace smells like burning dust Furnace smells like rotten eggs ⚠ 911 AC smells musty AC smells like chemicals Pro Uneven cooling upstairs vs downstairs Cold room even with heat on Hot room even with AC on Furnace short-cycles Pro Vents blowing dust Refrigerator warm in one section Freezer frosting up Washer walking during spin Washer won't drain Dryer takes too long Dryer overheating Pro

Structural warning signs 11 pages

The symptoms where reading the difference between cosmetic and serious matters. Some are DIY; others are pro-only. When in doubt, get a structural engineer opinion — often just $200-$500 for peace of mind.

Cracks appearing in interior walls Doors don't close properly (many) Pro Floor squeaks Floor is bouncy Pro Uneven floor Pro Foundation crack — small hairline Foundation crack — horizontal Pro Foundation crack — stairstep Pro Wall feels wet Damp spot on basement wall Ice buildup at roof edge (ice dam)

Doors, windows & exterior symptoms 12 pages

Sticks, drafts, leaks, and the small annoyances that get worse with weather.

Garage door won't open Garage door reverses on close Door sticks / rubs frame Door won't latch Window won't stay up Window won't close all the way Draft from outlet Draft from window Windows fogging between panes Water leaks around window frame Green streaks on siding Standing water in yard

Smells, sounds & pest signs 10 pages

The subtle symptoms — musty smell, weird noise, evidence of something living where it shouldn't.

Musty smell in basement Musty smell in bathroom Mildew smell on clothes / closet Popping/creaking noise in wall Weird noise in walls at night Scratching sounds in attic Scratching sounds in walls Small ants appearing indoors Mice signs in house Termite signs — call pro Pro

How troubleshooting pages work

Every troubleshooting page starts with what you searched — the symptom. The page then walks the diagnosis in order of most-common cause to least-common, so you spend the least time on unlikely paths. If a fix is DIY-safe, we walk it. If it isn't, we say so up front and route you to the right kind of pro (electrician, plumber, GC, HVAC tech) with typical cost expectations.

Emergency symptoms are marked ⚠ and go straight to a shutdown-and-call-911 protocol. Do not attempt to diagnose an active gas leak, CO alarm, or electrical fire — evacuate first.

Frequently asked questions

The symptom I'm searching isn't listed. What should I do?

Use the site search at the top — WordPress search covers the full body of every fix page, so you can find issues even if the exact symptom isn't in our top index. If nothing turns up, tell us and we'll add a page. Reader-requested symptoms are among the fastest to publish.

How do I know if my symptom is an emergency?

The emergency category at the top of this page covers gas leaks, CO alarms, electrical panel warning signs, and active flooding. If you're seeing any of those, follow the emergency protocol first — evacuation, shutoff, call 911 — before searching further.

Some symptoms are tagged 'Pro' — does that mean I shouldn't read the page?

Read the page. It explains why it's a pro-only fix, what to expect when you call, and typical cost. Understanding the problem is useful even when the fix isn't yours to do. What we don't provide is step-by-step DIY instructions for those topics.