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Home Inspections are conducted and reported by visibly identifying problems and are best performed during daytime. In order to provide the client with a proper assessment of the property without jeopardizing the safety of the inspector or other accompanying individuals the following points should be considered prior to the inspection:
Attending the Inspection

You (the client) or a designate should be present during the inspection. This will give the inspector a chance to point out any defects that you will later see in the report. It will also give you a chance to ask questions while the inspection is in progress.

Be considerate to tenants

If the home being inspected is occupied by a tenant, they should be informed ahead of time that an inspection will be taking place. They should be advised of the measures (this list) that they would take to ensure a successful inspection will take place. Depending on the type of inspection, size of property, and number of systems, an inspection will typically take between 2-4 hours.

Safety First

Personal safety is part of the Code of Conduct and Professionalism. The inspector makes every effort to ensure that no person or animal will be injured or damage caused as a result of the inspection.  As the inspection will involve accessing electrical panels, heating systems, and other dangerous appliances, children and pets should be kept away or closely watched.

Minimize Obstacles

The electrical panels need to be easily accessible without any obstructions.  The inspector needs to be able to remove the panel to visibly inspect the inside and turn off a breaker in case of an emergency.  Also, any furniture, boxes, or other large obstacles should be placed in such a way to maximize the amount of wall, ceiling, and floor space accessible to the inspector.

Utilities

Home inspections include, amongst other things, a full overview of the electrical, plumbing, and heating and ventilation systems. These utilities must be turned on prior to the inspection for us to determine their state.  The Standard of Practice in Ontario does not require home inspectors to operate electrical breakers, water mains, or gas shut-off valves.

Disabling Alarms

Some homes have integrated burglary and smoke alarm systems. Prior to the start of the inspection, the monitoring station should be informed to put the system on bypass in case it is triggered by mistake. Once the inspection is over, the alarm systems should be reactivated by the monitoring station.

Attics and Crawl Spaces

Access panels to roof attics and crawl spaces should be open. They often get sealed by owners to avoid any cold air from leaking in. As the home inspection is non-destructive in nature, inspectors are not permitted to use any tools to pry open these access panels as they may result in damage.  Access to these spaces to is needed to inspect them.

Renovation and Service Records

When renovations are made to a structure, the buyer may ask for documents about the work that has been completed. Also, service records for water heaters, heating systems, and other appliances are used to identify what work has been done on the appliance and may help in indicating their condition.  Those should be ready for the inspection.


Almost every residential home uses tank-type water heaters to provide us the comfort of a hot shower, clean clothes and or clean dishes.  This water heater, when malfunctioning result in an explosion comparable to a large amount of dynamite and has the potential of flattening the home it is installed in and severely injure or kill all the occupants.

How does your Hot Water Heater become a “bomb”?

Hot Water Tanks have a built-in thermostat which controls the temperature of the water.  When the water temperature reaches the set point, the thermostat shuts off the heater.  A malfunction of the thermostat or heater could cause the heater to continue to heat the water, increasing the water temperature and pressure inside the tank.  A temperature & pressure valve (T&P valve) is a safety device built onto hot water tanks that are designed to automatically release excessive pressure from the tank caused by such a malfunction.  In the event and the T&P valve fails to release the excess pressure, the tank would ultimately be unable to contain the pressure would explode.

What can be done to prevent it?

Water tank manufacturers recommend testing the T&P valve annually to be sure it would function properly in the event of a malfunction.  Failure to do so could cause the valve to fail over time and creates a dangerous condition.  It is recommended to have the T&P valve discharge into a bucket so the homeowner can observe for problems when no one is present and to prevent flooding in the area near the tank.   The T&P valve should never be plugged or connected to a drain or other location which would prevent visual observation of any discharge.  If sediments are noticed in the discharge, this is also an area of concern as such sediments could clog the T&P valve.  Any problems should be remediated to eliminate such hazardous conditions.

Hot Water Tanks and the Home Inspector

Your home inspector will check that the hot water tank has a T&P valve and that it is properly piped to the floor and not obstructed to allow hot water and steam to be released and not create a hazardous environment for bystanders.  Since inspections are meant to be non-destructive, the inspector is not required to test the valve because the valves will often fail the test requiring replacement.  This would make the home inspector liable for the repair or replacement.

If you’ve purchased a home in the past, your home inspector may have pointed out aluminum wiring as an area of potential concern in getting the home insured. Some insurance companies will not issue insurance for a home that has aluminum wiring while others charge premiums.  So the question is “what’s wrong with aluminum wiring?”

Aluminum wiring became a popular alternative for use in homes when the price of copper spiked in the 1960s.  Many homes today still have aluminum wiring that is functioning properly.  Like many other systems in the home, the key to proper operation is proper installation and maintenance.

When home owners make changes to aluminum wiring and their outlets they often create problems.  Unlike copper which is more forgiving with its connections, aluminum wiring requires more considerations to avoid problems from occurring.  Here are the main ones:

  • Aluminum oxidationWhen aluminum is exposed to air it undergoes a chemical process called oxidation. Unlike aluminum which is a conductor, aluminum oxide is an electrical insulator which impede the flow of electricity through the oxide layer. To avoid oxidation from occurring, all terminals must be covered with a gray oxidation inhibitor paste.
  • Expansion and contractionAluminum experiences more expansion and contraction with temperature changes compared to copper. Therefore it’s important to provision enough cable length and that connections haven’t loosened.
  • Joining aluminum to copperAluminum and copper are dissimilar metals and when in direct contact may undergo galvanic corrosion. To prevent corrosion from occurring, special CO/ALR connectors and outlets must be used.

It is possible to have an aluminum wired home that is safe for use.  But make sure you have a licensed electrician confirm its proper installation.


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