Diagnose Home Repair Symptoms Room by Room · Page 6

Symptom Guides · insulation

Snow Melting in Patches on Your Roof

Your roof melts snow in patches because heat is escaping unevenly through weak spots in your attic insulation, warming the roof deck above those areas and melting the snow before it can build up evenly.

Symptom Guides · structural

Floor Feels Spongy in One Spot

A spongy spot in one area of your floor is usually caused by water-damaged subfloor or a weakened floor joist below it. It's a structural issue that needs inspection from underneath before the area gets worse.

Symptom Guides · garage-door

Door Opens a Few Inches Then Stops

A garage door that opens a few inches then stops usually has a broken torsion spring. The opener can't lift the door's weight without spring assistance, so it stalls or reverses within seconds.

Symptom Guides · septic

Toilet Gurgles After Laundry (Septic)

Your toilet gurgles after laundry because the septic tank or drain field can't accept water fast enough, so the washer's surge forces trapped air back up through the toilet. It usually means the tank is full or the drain field is failing.

Symptom Guides · landscaping

Sprinkler zone won't shut off

A sprinkler zone that won't shut off is usually caused by a valve stuck open, either from debris trapped under the diaphragm or a failed solenoid. Shut off the main water supply first, then clean or rebuild the zone valve.

Symptom Guides · pool

Pool Pump Losing Prime Overnight

A pool pump loses prime overnight because air leaks in on the suction side (most often a dry pump lid o-ring or loose fitting) and water drains back when the pump shuts off. Lubricate or replace the o-ring and check suction fittings first.

Symptom Guides · pest

Scratching in Ceiling Only at Night

Scratching in the ceiling only at night is almost always nocturnal rodents (rats or mice) active in your attic or ceiling void after the house quiets down. Confirm with droppings and gnaw marks, find the entry point, and seal it before trapping.

Symptom Guides · masonry

Retaining Wall Leaning After Rain

Your retaining wall is leaning outward after heavy rain because water saturated the soil behind it and built up hydrostatic pressure faster than the drainage could release it, pushing the wall forward.

Symptom Guides · windows

Gap Between Bay Window and Wall

Your bay window is pulling away from the wall because its support system (roof straps, cables, or knee braces) is failing and the heavy unit is sagging. This is a structural problem that needs inspection, not just fresh caulk.

Symptom Guides · masonry

Cracked Chimney Crown Letting Water In

Your chimney crown is cracked and letting water in because the thin mortar cap on top has shrunk and frozen over the years, and cracks let rain soak into the brick and flue below. Seal hairline cracks with a crown sealer, but rebuild the crown if it's crumbling.

Symptom Guides · masonry

Chimney Mortar Crumbling Between Bricks

Your chimney mortar is crumbling because the joints have aged and weathered, and repeated freeze-thaw cycles combined with water infiltration break the mortar down faster than the surrounding brick.

Symptom Guides · masonry

Chimney Pulling Away From the House

A brick chimney pulls away from the house when its footing settles or heaves, or when water rots the tie between the chimney and the wall framing. It's a structural emergency that needs a mason or engineer right away.

Symptom Guides · masonry

Water Seeping Through Retaining Wall

Water seeping through a retaining wall face means water is trapped in the soil behind it and pushing through under pressure, usually because the drainage system (gravel backfill and a perforated drain pipe) is clogged, damaged, or missing.

Symptom Guides · masonry

Retaining Wall Top Blocks Shifting

Retaining wall blocks shift at the top mostly from water pressure behind the wall or a cap course that lost its adhesive or pin. The top row moves first because it carries the least weight holding it down.

Symptom Guides · garage-door

Garage Door Closes Then Reopens

Your garage door closes then reopens because the safety photo-eye sensors near the floor are misaligned, dirty, or obstructed. Clean and realign both sensors until their LEDs stay solid, and the door should close normally.

Symptom Guides · garage-door

Remote Works But Wall Button Doesn't

Your remote works but the wall button doesn't because the issue is in the wall button, its low-voltage wires, or a lockout setting, not the opener motor or logic board. Test by touching the two button wires together at the opener terminals.

Symptom Guides · garage-door

Motor Runs But the Door Won't Move

The motor runs but the door doesn't move because the drive connection failed, most commonly a stripped plastic drive gear, a disengaged trolley from the emergency release, or a broken carriage. Confirm by disconnecting the opener and lifting the door by hand.

Symptom Guides · garage-door

Garage door shudders and jerks opening

A garage door that shudders and jerks while opening is binding somewhere in the door hardware. The most common causes are dry or worn rollers, a bent or misaligned track, and torsion springs that have lost tension, which forces the opener to yank the door up in surges instead of lifting it smoothly.

Symptom Guides · garage-door

Garage door slams shut when closing

A garage door that slams shut instead of lowering slowly has lost spring counterbalance, most often from a broken torsion spring or a lift cable off its drum. Stop using the door and call a garage door technician, since the panel can free-fall with hundreds of pounds of force.

Symptom Guides · windows

Hazy film that won't clean off double-pane glass

A hazy film that won't clean off a double-pane window is usually on surface 2 or 3 (inside the sealed unit) from a failed insulated glass seal, or it's mineral etching burned into the exterior face by hard sprinkler water. Both require replacing the glass unit rather than cleaning it.

Symptom Guides · windows

Cold Air Leaking Around the Window Frame

Cold air around a double-pane window frame almost always comes from the unsealed gap between the window unit and the rough opening, failed exterior perimeter caulk, or worn sash weatherstripping. The glass itself is rarely the source when the draft is at the edges.

Symptom Guides · windows

Winter condensation inside double-pane glass

Condensation on the room-side surface of double-pane windows in winter means indoor humidity is too high for the temperature of the glass. Lower indoor relative humidity to 30-40% (less in subzero weather) and improve air movement across the glass.

Symptom Guides · windows

Water pooling in sliding door track

Water pools on a sliding glass door's interior track when the exterior sill's weep holes are blocked and drainage backs up over the divider rail, or when the sill seal, weatherstrip, or roller height has failed. Clearing the weeps solves most cases for under $20.

Symptom Guides · windows

Lock won't line up with the strike

A sliding glass door lock stops lining up with the strike when the panel drops on worn rollers or the keeper shifts in its slotted mounting holes. Adjusting the keeper up or down usually solves it; if the door has sagged more than about 1/4 inch, the rollers need adjustment or replacement.

Symptom Guides · windows

Bay window seat board soft and spongy

A spongy bay window seat board is rotted from long-term water exposure, typically from failed sash caulking, condensation running off the glass, or a leak in the bay's roof cap. Probe the wood to map the damage and have the supporting framing inspected before anyone sits on it again.

Symptom Guides · septic

Sewage smell in the yard after rain

Sewage odor in the yard after rain is usually caused by a drainfield that can't accept effluent in saturated soil, or by storm water entering the septic tank through a damaged lid or riser and forcing gas out at grade.

Symptom Guides · septic

Septic alarm on, tank looks normal

A septic alarm with a normal-looking tank means the high-water float is in a different chamber, typically the pump or dose tank, and that chamber is overfilling because the effluent pump, float switch, or its power circuit has failed.

Symptom Guides · septic

All Drains Slowed at Once: Septic Tank

Every drain in the house slowing at once on a septic system points to a blockage downstream of all the fixtures: a full tank, a clogged effluent filter, or an obstructed main line. Check the septic tank water level first, since a level above the outlet pipe means the problem is past the tank, not in your plumbing.

Symptom Guides · septic

Spongy wet ground over the leach lines

Spongy, wet ground over leach lines means septic effluent is surfacing because the drain field can no longer absorb it, typically due to biomat clogging, solids carryover from an unpumped tank, hydraulic overload from a leak, or a high water table.

Symptom Guides · septic

Septic backs up only in heavy rain

A septic system that backs up only during heavy rain means the drain field soil is saturated and can't accept effluent, or stormwater is leaking directly into the tank through a damaged lid, riser, or improperly connected sump pump.

Symptom Guides · landscaping

Sprinkler Head Leaking at the Lowest Spot

A sprinkler head leaks at the lowest point in the yard because gravity drains the water left in that zone's pipes out through the lowest opening after the valve closes. It's called low-head drainage, and it's normal unless the seepage lasts more than a few minutes.

Symptom Guides · landscaping

Backflow preventer dripping constantly

A sprinkler backflow preventer drips constantly because a check valve or relief valve inside it has stopped sealing, usually from debris on the seat, a worn rubber disc, or freeze damage to the poppet or bonnet.

Symptom Guides · landscaping

Sprinkler controller won't change zones

A sprinkler controller that won't advance between zones is almost always caused by a stuck valve holding water on, a failed triac output feeding constant 24VAC to one zone, or a programming issue like a single long run time or overlapping start times.

Symptom Guides · landscaping

French drain outlet buried, not draining

A French drain outlet stops draining when soil, mulch, or washed-in silt buries the pipe end, or when sediment packs the last few feet of pipe. Digging the outlet back open, flushing the line with a hose, and re-cutting the grade around it fixes most cases for $30–$200.

Symptom Guides · landscaping

Water surfacing above a French drain line

Water surfaces above a French drain when the line can no longer discharge, usually from a clogged or crushed pipe, silt-blinded filter fabric and gravel, or a buried, submerged, or blocked outlet. Check the discharge point first, then camera the line before digging.

Symptom Guides · chimney

Creosote flakes falling into the firebox

Creosote flakes fall into the firebox when buildup inside the flue gets thick enough to break loose, usually from burning wet wood, smoldering fires, or skipping annual sweeps. Stop using the fireplace and book a Level 2 chimney inspection.