Spotlight on Bathrooms

We are currently renovating one of our three bathrooms: we replaced the shower unit, redid the floors, painted the walls and the next step will be to replace the vanity and sinks. When the installers were putting in the new shower, it was observed that there was a rotted subfloor that needed to be replaced. Not a big surprise or expense, but something that should not be ignored. Today’s blog post is a spotlight on bathrooms and some of the things we home inspectors are looking for. 

Something I wish I could do as a home inspector: rip out floors!

Water Damage
I’ve said it many times but will repeat again that water is the #1 enemy of homes. Obviously, a bathroom is by design filled with water using fixtures that are valuable, provided they function as intended. I have identified many leaks during home inspections, but surprisingly the bathroom is rarely the cause. This is likely because most homeowners regularly visit the bathroom and can quickly identify and stop a leak. The two most common causes of water damage are: 

1. Failed Toilet Seals: when you stop and think about it, a toilet is an amazing device, quickly and safely removing waste without using any electricity, all while preventing nasty sewer odors from entering the bathroom.  This is done using a wax seal and over time the seal can be damaged and not be 100% effective. This can lead to a slow leak that not even a home inspector can identify at first. The clearest symptom of a failed seal is a bad smell coming from the bathroom. 
2. Leaky Bathtub Drains: I made sure to mention that we used installers to put in our bathtub and showers. The company we used was far from the cheapest, but they did quality work. I have seen substandard installation work, and the results can lead to damaged drywall, mould growth and high humidity.​ 

GFCI Receptacles
Ground-Fault Circuit Interrupters are critical safety features that can prevent death by electrocution (water and electricity don’t mix!). Electrical codes have expanded their use throughout the home but the first room they were required to be installed in was the bathroom. Not only do we always check that they are working properly, but they should also be tested monthly by the homeowner/tenant. 

Ventilation
People are often surprised to learn that the kitchen doesn’t require ventilation, but the bathroom certainly does. A fan (or window) is required to remove the high amounts of moisture, especially after a shower otherwise mould and mildew can quickly take root. There is another type of ventilation we look for: waste pipe (DWV) ventilation. One of the clearest symptoms of inadequate DWV ventilation is gurgling toilets and we can advise further steps if this is detected during a home inspection. 

Shower/Flooring Tiles
A home inspector is not an interior decorator and does not focus on cosmetic issues, but cracked flooring or shower tiles are not only ugly but can provide a means for water to flow where it should not be going. We also don’t comment on things like carpet, but an exception is made for both the bathroom and kitchen as neither should ever have carpeted floors. 

Improper Drainage
While I offer and usually recommend a sewer scope inspection to my clients, they aren’t always necessary to detect problems. The biggest issue I see is slow draining sinks and toilets. If all the sinks and tubs in the home are slow to drain, it is likely a system wide problem that a scope can provide more information about. Luckily most drain issues are isolated to one specific sink or tub and it is often the result of hair that catches debris and while gross, is usually not difficult to clear. Be sure to regularly clean your drains to prevent this from happening. 

Contrary to certain TV shows, a bathroom leak is usually not detected from a waterfall in the floor below but is usually very slow and subtle. As a home inspector I use thermal imaging, moisture meters and of course good old-fashioned senses to help determine if a bathroom requires further attention from a plumber.