What people keep running into with water leak
Complaints tagged water leak, each raised by more than one person. One-off posts are not included.
19 recurring problems · 192 people · 11 forums we read
Raised more than once
Most people first.
- 55How to fix a leaking water pipe in a tight spaceRepairing a pipe leak in a confined area like beneath attic ductwork requires choosing an appropriate temporary or semi-permanent fix to avoid high plumbing costs. However, recurring pinholes in older copper lines often lead to a frustrating cycle of repeated patches that eventually force a full-house replumbing.
- 25How to clear a clogged AC condensate drain lineAlgae and slime buildup inside condensate lines blocks airflow and water drainage, causing the drain pan to overflow and leak into ceilings or floors. Clearing the blockage requires snaking or pumping out the standing water in the PVC lines and U-joints to stop the immediate flooding.
- 22Water keeps getting in the house during heavy rainHeavy rain overwhelms existing doors, garage thresholds, and drains, allowing water to pool inside the living spaces and garage. This sudden flooding forces residents to constantly manage overflowing entry points and deal with moisture damage from structural vulnerabilities.
- 15Water dripping from electrical switches behind wallsMoisture and active dripping behind electrical switch plates indicate a hidden pipe leak or severe condensation inside the wall cavity. This creates immediate risks of electrical short circuits and black mold growth, while making it difficult to find the entry point without cutting into drywall.
- 12How to find where a roof leak is actually coming fromWater travels along framing, pipes, and angles before pooling in a ceiling or insulation, meaning the drip spot rarely sits directly below the entry point. Tracing the path requires opening up walls or tracking water back to penetrations like pipes and concrete patches where moisture seeps through seams far from where it appears inside.
- 10HVAC lineset leaking through the roofWhen HVAC linesets penetrate the roof rather than exterior walls, they often cause ceiling leaks that installers blame on unrelated roof issues like valleys. This leaves homeowners struggling to find a reliable fix without paying thousands more for contractor repairs.
- 9Why won't my toilet stop running?A continuously running toilet is typically caused by a faulty fill valve or a flapper that isn't sealing properly, allowing water to constantly leak into the bowl. This persistent flow wastes water and creates a loud, non-stop noise that disrupts sleep and daily quiet.
- 9AC unit leaking water from top rubber sealCondensation forming around the top pipe connections is leaking from the rubber seal and causing premature rust. Installers often dismiss this as normal, but the moisture is corrosive and risks eating through the equipment within a few years.
- 6How to fix cement fiber siding touching roof shinglesCement fiber siding installed directly against roof shingles without the required one to two inches of clearance or flashing causes rot, water intrusion, and siding deterioration. Cutting away the tight, awkward sections of damaged material to add proper clearance is physically difficult and risks forcing homeowners to completely replace large wall sections if left unaddressed.
- 4Rot running from exterior deck up to door frameWater damage where an exterior deck meets a door frame often signals moisture tracking upward into the framing and subfloor. Homeowners dealing with this face uncertainty over whether the damage is purely cosmetic or structural, and whether a DIY fix is realistic or requires a professional.
- 4Water leak from screw after flushing water heaterFlushing a tankless water heater for maintenance can cause a small water leak to develop around a housing screw or union. This usually happens because the screw acts as a penetration through the housing, forcing homeowners to try tightening the fittings themselves or risk calling a technician before the problem worsens.
- 4How to clean the inside of a double pane windowWhen a window seal breaks, moisture and residue build up permanently between the glass panes where no cleaning tool or solvent can reach. Because the trapped film is sealed inside the insulated unit, homeowners cannot wipe it off and must ultimately replace the glass to clear the view.
- 4Why does my toilet still leak after replacing the seal?New gaskets, supply lines, and replacement rings often fail to stop leaks because overtightened nuts, stuck shutoff valves, and tricky pressure points create new gaps. This constant trial and error leaves people anxious that they have made the plumbing worse instead of fixing it.
- 3Why is water dripping from my furnace when AC is on?When the air conditioner runs, water drips directly from the furnace and pools on the ground. This unexpected leaking forces people to constantly mop up standing water and manage basement moisture.
- 3Water leaking under exterior door thresholdRainwater gets behind the siding and travels down to pool beneath the threshold even when flashing and weather stripping are properly installed. This hidden moisture can eventually rot the subfloor and joists if the source—such as a clogged gutter or water running along the foundation—isn't found and stopped.
- 2Is a gas line repair quote too high or should I just abandon it?Contractor quotes for underground gas line repairs can feel outrageously expensive, forcing homeowners to weigh high repair costs against abandoning the appliance or attempting the digging work themselves. This creates a time-sensitive dilemma over whether to pay for code compliance or bypass professional service entirely.
- 2How to reach a frozen evaporator coil blocked by refrigerant linesRefrigerant lines running directly through the access panel create a physical barrier that prevents homeowners from opening the unit to clear ice and check the drain. This forces people to guess the proper disassembly sequence or risk damaging the piping just to access the frozen coils.
- 2How to patch a gouged EPDM rubber roofEPDM roof repairs involve conflicting methods and products like liquid roof repair pastes or standard patches, leaving it unclear which technique actually stops leaks permanently. This confusion prevents homeowners from reliably fixing damage themselves without risking further water intrusion.
- 2Is air conditioner condensation normal or a leak?Air conditioners naturally create moisture and water pooling around the unit during normal operation, but seeing it can cause confusion and worry about potential damage or mold. This uncertainty often leads homeowners and tenants to stress over whether routine buildup or a mildew smell indicates a serious problem.
Comes up alongside
Topics that keep appearing on the same problems — not topics with similar names.