A home inspection can tell you a great deal about a property.
But it doesn't answer every question.
Some parts of a home require specialized knowledge, equipment, laboratory testing or access that falls outside the scope of a standard home inspection. Other concerns may only become apparent after the inspector identifies something that deserves a closer look.
This is particularly relevant in Nova Scotia, where a property may have a private well, septic system, wood heat, an oil tank or other features requiring their own investigation.
The goal isn't to order every test available.
It's to figure out which investigations make sense for the particular property you're considering buying.
Start With the Home Inspection—Then Follow the Evidence
For many buyers, the general home inspection is the starting point.
A home inspector looks at the visible and accessible components of the property and may identify areas that deserve additional investigation.
That could mean an electrician examining a concern at the electrical panel.
It could mean a heating technician evaluating a boiler.
It could mean a structural engineer looking at unusual foundation movement.
Or the property itself may have features—such as a private well or septic system—that you planned to investigate separately from the beginning.
Think of due diligence as a process.
The first investigation may answer some questions while showing you which questions still need answers.
Not Every Property Needs the Same Due Diligence
A newer subdivision home on municipal water and sewer presents a different set of questions from a 150-year-old rural property with a drilled well, septic system, wood stove and several outbuildings.
A waterfront cottage presents different questions again.
So does vacant land.
So does a house that has undergone extensive renovations.
This is why a checklist can only take you so far.
Your due diligence should respond to the property, its systems, its history and what you intend to do with it.
Private Well Water Should Be Tested
If the property has a private well, don't assume clear, odourless water means the water is safe.
Nova Scotia says more than 40% of households obtain their drinking water from private wells and recommends regular testing for both bacteria and chemical contaminants. The province specifically notes that you can't determine whether well water is safe based on its appearance, smell or taste. Government of Nova Scotia
For ongoing ownership, Nova Scotia recommends testing well water at least annually for bacteria and every five years for chemical contaminants. Government of Nova Scotia
During a real estate purchase, water testing can help you understand the water supply before you take ownership.
Depending on the circumstances, testing may include:
Total coliform and E. coli
General chemistry
Metals
Arsenic
Uranium
Manganese
Other parameters appropriate to the property
Specific additional testing may make sense when there is a reason to suspect another source of contamination.
Nova Scotia identifies potential sources including petroleum products, septic systems, agricultural activity, road salt and other environmental influences. Government of Nova Scotia

Water Quality and Water Quantity Are Different Questions
A laboratory test tells you about water quality.
It doesn't necessarily tell you whether the well can consistently provide enough water for the household.
That's a different question.
If there are concerns about the well's capacity, history or performance, a buyer may want additional information about the well itself.
That could include looking for the well construction record, asking about previous shortages or having an appropriate professional evaluate the well or its yield.
A property can have perfectly acceptable water chemistry and still have a quantity issue.
Likewise, a productive well can still require water treatment.
Don't confuse the two.
A Water-Treatment System Doesn't Eliminate the Need to Understand the Water
Some homes have equipment to address particular characteristics or contaminants in the water.
You might see:
Sediment filters
Water softeners
UV treatment
Iron or manganese treatment
Reverse-osmosis equipment
Other filtration or treatment systems
Find out what the equipment is intended to treat.
Ask how it has been maintained.
And consider whether the water should be sampled in a way that helps you understand both the untreated source water and how effectively the treatment system is working.
The presence of treatment equipment isn't automatically a concern.
It's information about the property that you should understand.
A Septic System Deserves Its Own Inspection
A general home inspection shouldn't automatically be treated as a substitute for a dedicated septic-system inspection.
The Nova Scotia Real Estate Commission recommends that buyers have a septic system inspected before finalizing the purchase of a property with an on-site system. NSREC notes that an inspection may involve pumping the tank and examining the disposal field and that septic inspections may be conducted by appropriately qualified professionals such as licensed septic installers, licensed sewage haulers or professional engineers. Nova Scotia Real Estate Commission
A septic investigation may help answer questions such as:
Where is the tank?
Where is the disposal field?
What type of system is installed?
Is the system functioning as expected?
Are there visible signs of a problem?
When was the tank last pumped?
Is there available information about the system's installation or maintenance?
The appropriate scope depends on the property and the professional conducting the inspection.

Don't Assume a Working Toilet Means the Septic System Is Fine
A septic problem isn't always obvious during a showing.
The sinks may drain.
The toilets may flush.
There may be no noticeable odour.
That doesn't provide the same information as an appropriate investigation of the septic system.
This is especially important because the system is largely underground.
A buyer should understand that what happens inside the house is only one part of the wastewater system.
Radon Requires Testing
Radon is another issue you can't evaluate simply by looking at the house.
Nova Scotia advises that testing is the only way to know the radon level in an individual home. Long-term testing is the preferred approach, with Health Canada recommending a testing period of at least three months. Nova Scotia Real Estate Commission
That creates an obvious challenge during many real estate transactions: the condition period may be much shorter than the recommended long-term testing period.
That doesn't mean radon should be ignored.
It means buyers should understand what can realistically be determined before closing and what may need to become part of their ownership plan.
Radon isn't simply an “old house” issue, either.
Testing is what determines the level in a particular home.
Wood Stoves and Fireplaces May Need a Specialized Inspection
Wood heat is common enough in Nova Scotia that buyers will regularly encounter wood stoves, fireplaces and other solid-fuel-burning systems.
A general home inspector may observe the system, but an inspection by a WETT-certified professional may be requested or appropriate—particularly for insurance or when evaluating the installation itself.
WETT says solid-fuel systems are inspected for reasons including real estate transactions, insurance requirements and concerns about system performance. It also uses different SITE inspection levels depending on accessibility and the depth of investigation required. Wettinc
There's an important terminology distinction here:
The stove itself isn't “WETT certified.”
WETT certifies individuals. A WETT-certified professional can inspect the wood-burning system and issue an inspection report. Wett Inc.
If you're buying a property with wood heat, it's also worth discussing the system with your insurance provider early in the process.

An Oil Tank May Need More Than a Quick Look
A home inspector may note the location, apparent condition and visible characteristics of a heating-oil tank.
But sometimes further investigation is appropriate.
An oil-heating system includes more than the tank itself. Tank condition, installation, fuel lines, corrosion, evidence of leakage and other factors can all matter.
Nova Scotia's guidance on domestic heating-oil tanks recommends having a heating-service professional conduct a more detailed examination when an evaluation raises concerns about the system. Government of Nova Scotia
Insurance can matter here as well.
If you're buying a property heated by oil, provide the relevant information to your insurer rather than assuming the system will automatically meet its underwriting requirements.

Electrical Concerns May Need an Electrician
A home inspector may identify electrical concerns during the general inspection.
Sometimes the observation is straightforward.
Other times, it raises a question that should be answered by a licensed electrician.
That might happen when there are concerns about:
An electrical panel
Older wiring
Improper alterations
Unusual connections
Renovated areas
Insufficient electrical capacity for planned improvements
Other visible conditions identified during the inspection
The distinction is important.
The home inspector helps identify a potential concern.
The electrician can investigate the electrical issue in greater depth and advise on what work, if any, is appropriate.
Heating Equipment May Need a Heating Professional
The same principle applies to heating and cooling equipment.
A general inspection may identify the approximate age, visible condition or operation of a furnace, boiler, heat pump or other equipment.
But if the equipment isn't operating properly—or if its condition is important to your purchasing decision—you may want an HVAC or heating professional to evaluate it.
This can be particularly useful when the system is older, appears poorly maintained or shows signs of leakage, unusual operation or previous repair.
It can also help when you're trying to understand whether an existing system can reasonably support renovations or changes you intend to make.
Structural Concerns May Require an Engineer
Cracks aren't all the same.
Neither are sloping floors.
Neither are sagging roofs, altered framing or foundation movement.
A home inspector may identify something that appears unusual without being able to determine the underlying cause or its structural significance.
That's where further investigation can become valuable.
Depending on the concern, a structural engineer or other appropriately qualified professional may be able to evaluate the condition and help determine whether it represents ordinary movement, a previous repair, an active problem or something requiring corrective work.
The objective isn't to panic every time a crack appears.
It's to get the right expertise when the answer matters.

Moisture Problems Sometimes Need More Investigation
Water staining tells you that water has been there.
It doesn't always tell you:
Where the water came from
Whether the source has been repaired
Whether the problem is still active
What may be concealed behind the finished surface
How extensive any resulting damage may be
An inspector may use visible evidence and moisture readings to help evaluate the situation within the scope of the inspection.
But significant or unexplained moisture can justify additional investigation.
That might involve a roofer, plumber, foundation contractor, building professional or another specialist depending on the suspected source.
The right specialist depends on the problem.
A Sewer Line Can Be a Separate Question
On a property connected to municipal sewer, the plumbing inside the house isn't necessarily the end of the investigation.
The lateral connecting the home to the municipal system can be another consideration.
A sewer camera inspection may sometimes be worth considering—particularly where there are signs of drainage problems, a history of backups, older buried piping, mature trees near the route or another reason to question the condition of the line.
This isn't something every buyer needs to order.
It's another example of property-specific due diligence: investigate further when the property gives you a reason to ask the question.
Renovations Can Raise Questions Beyond Physical Condition
A beautifully renovated kitchen can look excellent during an inspection.
But a home inspection doesn't necessarily establish the permit or approval history of the work.
If a property has undergone significant alterations, buyers may want to understand what was changed and what documentation is available.
This can be particularly relevant for work involving:
Additions
Structural changes
Finished basements
New bedrooms or living spaces
Electrical work
Plumbing changes
Decks
Secondary suites
Major renovations
The appropriate municipal requirements depend on the property, location and work involved.
If the status of renovations matters to your purchase, investigate it rather than assuming that attractive finished work tells you everything about how it was completed.
Property Boundaries Aren't Determined by the Lawn
A fence isn't necessarily on the boundary.
A driveway isn't necessarily entirely within the property.
A shed that appears to belong to the house isn't proof of where the legal property line runs.
And a row of trees isn't a survey.
If boundaries matter to your purchase, additional investigation may be appropriate.
This becomes especially important when you're buying because of a particular feature:
A large yard
Waterfront access
A driveway
Space for a future garage
A detached building
Room for an addition
Access to another part of the property
Your lawyer and REALTOR® can help identify what information is available and when a surveyor or other professional may be appropriate.

Access Can Matter Just as Much as Boundaries
Some Nova Scotia properties aren't accessed from a straightforward municipal road frontage.
You may encounter:
Shared driveways
Rights-of-way
Private roads
Easements
Shared maintenance arrangements
Access crossing another parcel
Being able to physically drive to a property doesn't, by itself, explain the legal rights and obligations associated with that access.
Questions about title, easements and legal access belong with your lawyer.
Questions about road condition, maintenance and practical use may require additional investigation as well.
This can be particularly important if year-round access, snow clearing or future financing depends on the arrangement.
Waterfront Property Creates Additional Questions
A waterfront home can require due diligence beyond the building itself.
Where exactly is the boundary?
Is the shoreline changing?
Are there erosion concerns?
How is the property accessed?
Where are the well and septic system in relation to the water?
What restrictions could affect future work near the shoreline?
Are docks, retaining structures or other waterfront improvements relevant to the purchase?
The view may be what first attracts you to the property.
Your investigation should focus on what owning that particular waterfront property actually involves.
Outbuildings Shouldn't Automatically Be Ignored
Garages, barns, workshops and other outbuildings can be a major part of a property's value to a buyer.
But the scope of a standard home inspection may not necessarily include every structure on the property in the same way as the house.
If an outbuilding matters to your decision, establish whether it is included in the inspection and what the inspector will evaluate.
A large barn you're counting on for animals, a workshop you plan to use every day or a detached garage supporting your purchase decision deserves appropriate attention.
Don't discover afterward that the structure you cared about wasn't part of the inspection you ordered.
Environmental Concerns Are Property-Specific
Most residential purchases don't require an exhaustive environmental investigation.
But certain properties or observations can create reasons to ask additional questions.
Examples might include:
Evidence of a previous fuel leak
Unusual tanks or containers
Former commercial or industrial use
Suspected contaminated soil
Nearby activities that create a specific concern
Other information discovered during due diligence
The appropriate investigation depends heavily on the circumstances.
This is an area where specialist environmental advice may be necessary rather than relying on assumptions.
Your Insurance Company Is Part of the Due-Diligence Process Too
A property can be physically acceptable to you and still raise questions for an insurer.
Depending on the home, an insurance company may want information about things such as:
Electrical systems
Heating equipment
Oil tanks
Wood-burning systems
Roof condition
Plumbing
Property occupancy
Other characteristics of the home
Don't wait until the day before closing to discover that your insurer needs information you don't have.
Starting the insurance conversation early gives you more time to determine whether additional inspections, reports or upgrades are required.
Your Lender May Also Require Information
Financing and property due diligence sometimes overlap.
NSREC notes, for example, that a financial institution may request a septic-system inspection. Nova Scotia Real Estate Commission
A lender may also have questions about a property's condition, appraisal, intended use or characteristics before final mortgage approval.
That's another reason not to assume that mortgage pre-approval means every property will automatically qualify.
The borrower matters to the lender.
So does the property being financed.
Specialists Answer Different Questions
One of the easiest mistakes during due diligence is asking the wrong professional to answer a question outside their area of expertise.
A REALTOR® isn't a structural engineer.
A home inspector isn't necessarily an electrician.
An electrician isn't a surveyor.
A surveyor isn't a septic installer.
Your lawyer isn't conducting the physical home inspection.
Each professional has a different role.
Part of good due diligence is recognizing which question you're trying to answer and who is qualified to answer it.
More Testing Isn't Automatically Better
It's possible to turn due diligence into an endless search for absolute certainty.
No investigation can guarantee that a house will never develop a problem.
The objective is to make reasonable, informed decisions based on the property and the information available.
Ask yourself:
What do I already know?
What don't I know?
Does the unanswered question materially affect my decision?
Who can give me the best information about it?
That approach is much more useful than ordering every conceivable test simply because it exists.
Leave Enough Time for Follow-Up
This is one of the practical reasons to think about due diligence early.
If your home inspection identifies a concern near the end of your condition period, you may need time to arrange another professional.
A specialist may not be available the same day.
Laboratory results may take time.
A contractor may need access to the property.
Additional information may need to be obtained.
In a Nova Scotia transaction, the Agreement of Purchase and Sale establishes deadlines for the buyer's conditions. NSREC confirms that buyers must complete their due diligence and provide the required written waiver of applicable conditions by the agreed deadline if they're satisfied; otherwise the agreement is deemed terminated. Nova Scotia Real Estate Commission
Know your deadlines and plan accordingly.

What Tests or Investigations Might a Buyer Consider?
There isn't one list that applies to every home.
Depending on the property, your investigation could involve some combination of:
General home inspection
Well-water testing
Well-yield or water-supply investigation
Septic-system inspection
Radon testing
WETT inspection of a wood-burning system
Heating or HVAC evaluation
Oil-tank or oil-heating-system evaluation
Electrical evaluation
Plumbing investigation
Structural evaluation
Roofing evaluation
Sewer camera inspection
Moisture investigation
Survey or boundary investigation
Permit or renovation-history research
Environmental investigation
Specialist evaluation of an outbuilding
Other property-specific investigation
That looks like a long list.
It isn't a recommendation to order all of them.
It's a reminder that “I had a home inspection” and “I completed my due diligence” aren't always exactly the same thing.
Let the Property Tell You What to Investigate
Good due diligence isn't about trying to eliminate every possible risk from home ownership.
That's impossible.
It's about identifying the questions that matter before you become responsible for the property.
A private well creates questions about water.
A septic system creates questions about wastewater.
A wood stove creates questions about the solid-fuel system.
A foundation crack may create a structural question.
A major renovation may create questions about permits or workmanship.
A shared driveway may create questions about legal access.
Follow those questions.
Use the general home inspection as an important starting point, bring in specialists where appropriate and make sure you understand the information you receive before your condition deadlines arrive.
The objective isn't to prove that the house is perfect.
It's to understand the property you're actually buying.
Part of the Buyer Resource Centre: Practical guides to help you prepare, evaluate a property and navigate the home-buying process in Nova Scotia.






























































