Related by context. Frequent words. (Click for all words.) 60 corrosion 59 sewage backups 58 spalling 56 sewer backups 56 mold infestation 54 dryer vents 54 electrical conduits 52 flashings 52 delamination 51 seepage 51 fatigue cracks 51 hairline cracks 51 sanitary sewer overflows 51 sinkholes 50 rubber gasket 50 chimney flue 50 leaks 50 leaky pipes 50 termite infestation 49 backflow 49 freeze thaw cycles 49 subfloor 49 sewer pipes 49 ruptures 49 oxidization 48 pinholes 48 sewage overflow 48 faulty furnace 48 leakage 48 corroded pipe 48 grout 48 pipes 48 structural defects 48 roofing tar 47 Hydrogen sulfide 47 water mains 47 corrosives 47 sewer mains 47 CPVC 47 electrical wiring 47 defective drywall 47 electrical arcing 46 disinfection byproducts 46 sealant 46 leak 46 polluted groundwater 46 copper piping 46 hydraulic fluid 46 sewer overflows 46 incomplete combustion 46 Seepage 46 solder joints 46 copper wiring 46 vapor barrier 46 contaminating groundwater 46 sewerage pipes 46 wood preservative 46 rotted wood 46 discoloration 46 pipework 46 drywell 45 Condensation 45 bridge abutments 45 piping 45 copper tubing 45 leaky pipe 45 tin whiskers 45 crawlspaces 45 muriatic acid 45 sewage spills 45 flammable vapor 45 unburned fuel 45 discolouration 45 melted siding 45 noxious chemicals 45 Hydrochloric acid 45 overpressure 45 groundwater contamination 45 pipe 45 rupture 45 overspray 45 clarifiers 45 gasoline vapors 44 valve stems 44 cavities 44 depressurized 44 plumbing 44 groundwater extraction 44 dehumidifying 44 leaky roofs 44 chemical vapors 44 plumbing pipes 44 hydrogen sulfide 44 cathodic protection 44 E coli bacteria 44 brass fittings 44 vapor intrusion 44 stratum corneum 44 heating ducts 44 contaminants 44 masonry walls