Here is what to expect from a plumbing inspection:
A check of your water filtration system.
An examination of fixtures, supply lines, and drains.
An in-depth investigation of all your above-ground, exposed plumbing, including shut-off valves and traps under your kitchen, bathroom, kitchen, and your laundry room sink.
An inspection of your sinks, showers/baths, and toilets.
An inspection of your bathroom(s), kitchen, and laundry room draining and venting system(s).
An inspection of your storage water tank or tankless water heater.
A plumbing video camera inspection of your underground sanitary drains and sewer pipes. Cracks and misalignments can eventually lead to future drain blockage or collapse.
A shut-off valve inspection.
A sump pump and discharge inspection.

A plumbing top out inspection is a check of your drain lines, waste lines, and vents after a rough in is complete. The plumbing top out inspection is done when the rough in is complete and ready to be reviewed. Additionally, in the top out inspection final additions are made to the plumbing

To pass a plumbing inspection, you will need to make sure the following is working properly: your sinks, drains, toilets, and shower/tubs, your dishwasher, refrigerator, and washing machine, your water heater, sump pump, and sewage system, and finally, your ventilation systems, drainage systems, and filtration systems. The most surefire way to pass your plumbing inspection is to have the plumbing in your home consistently maintained. If your plumbing goes unmaintained, you are more likely to have unexpected issues arise with your plumbing systems.

A plumbing inspection usually consists of a check of your home’s filtration system, a check of your fixtures, drains, toilets, showers/tubs, and supply lines, a check of your drainage and ventilation systems, a video inspection of your sewer lines, and a check of your water heater. A plumbing inspection will also usually include a check of your sump pump. Additionally, they will ensure that your shut off valve is working properly.

If you see any leaks, call a professional as soon as possible. Water can be the single most destructive force on a house and should be addressed immediately. Otherwise, prevention is the best medicine. Take your plumber’s advice in insulating exterior pipes so that you aren’t hit with a frozen pipe in the winter. Understand that fixtures, washers, and sealers all have a lifespan. If your home hasn’t seen any updates in your lifetime, stay on the lookout for small leaks that may start to develop, and start planning now about what you might do in case something does break down. It’s always best to be prepared.

A quality home plumbing inspection will include checks anywhere water runs through your house. This includes sinks, toilets, tubs, lines, and pipes. Underneath and outside of your house, most plumbers will check both pipes and hydrants for leaks, as well as check for proper support to ensure anti-freeze protection. Toilets and water heaters get an additional inspection. Toilets will have water levels, flappers, and filler mechanisms checked. Water heaters will receive water temperature checks and have pressure relief valves and pipes tested before being flushed.

Professional inspections have a couple of major benefits compared to attempting to perform them yourself. You can count not only on a plumber’s experience and expertise if they do find something amiss, but also have them to worry about the things you probably don’t want to have to deal with, yourself. For many homeowners, the parts they are happy to pass off include things like checking pipes under the house or dealing with annoying toilet flappers and slow-draining sinks. Or for those who don’t mind the small jobs but aren’t comfortable tackling bigger problems, professional inspections ensure your water heater is tested and flushed regularly, and that your outdoor pipes are properly insulated against winter freezes. Top to bottom, a quality inspection can save quite the headache