Why a Plumbing Inspection Is Different From a Home Inspection
A general home inspection is a valuable part of buying a home, but it is not the same as having a licensed plumber assess the plumbing system. Home inspectors assess a wide range of systems and typically flag visible concerns, but plumbing issues often require a closer look to understand what is actually happening.
A plumber can assess drainage performance, check fixture function more thoroughly, identify signs of past or ongoing leaks that may not be obvious, evaluate the condition and age of the hot water system, and offer an informed opinion on what the plumbing will need in the near and medium term.
In older Calgary homes, especially, the difference between a general inspection and a plumbing-specific assessment can be significant. Homes in established southwest Calgary neighbourhoods like Palliser, Oakridge, Braeside, and Woodbine were often built in the 1960s and 70s, with plumbing systems now decades old. Poly-b piping, aging hot-water tanks, cast-iron drain lines, and clay sewer laterals are all common findings in this housing stock. A plumber who works in these homes regularly will know what to look for and how to explain it clearly.
What We Look At During a Pre-Purchase Plumbing Inspection
Every home is different, but a pre-purchase plumbing inspection typically covers the following areas:
Supply piping and shut-offs We check visible supply piping for material type, condition, and signs of corrosion or past repairs. This includes identifying poly-b piping, which is a known concern in Calgary homes built between the 1970s and mid-1990s, and confirming the location and condition of the main water shut-off and key isolation valves.
Fixtures and fixture function Toilets, sinks, tubs, and showers are checked for proper operation, drainage, and signs of leaking around bases, connections, or supply lines. Running toilets, slow drains, and weak flush performance are all noted.
Drainage performance We run water through the fixtures and observe how drains perform. Slow drainage, gurgling, or odours from drains can indicate a buildup, partial blockage, or underlying issues that are worth understanding before possession.
Signs of leaks or past water damage We look around fixtures, under sinks, in mechanical areas, and anywhere water damage or staining suggests a past or ongoing issue. Evidence of repairs or remediation is also noted.
Hot water system We check the age, condition, and visible signs of wear on the hot water tank or tankless system. A hot water tank near or past its expected service life is a straightforward planning item for buyers to be aware of. We note any corrosion, leaks, or pressure-relief concerns.
Water pressure We check for adequate pressure and note any obvious restriction points or pressure concerns that may affect daily use.
Gas appliances and connections Where accessible and applicable, we do a visual check of gas appliance connections and note anything that warrants attention.
Older Homes and What Buyers Should Know
Calgary’s established neighbourhoods have a housing stock that skews older, which comes with specific plumbing considerations worth understanding before buying.
Poly-b piping is one of the most common concerns in Calgary homes built between the 1970s and 1995. It is a plastic supply pipe that has a documented history of fitting failures and leaks, and its presence affects home insurance coverage with some providers. If the home has poly-b, we will confirm it and explain what that means in practical terms.
Hot water tanks in older homes are sometimes original or near the end of their service life. A tank that is 10 or more years old is worth factoring into a buyer’s planning, even if it is still functioning at the time of inspection.
Aging drain lines in older homes, particularly cast iron or clay, can be in various states of condition. We note any visible concerns and can recommend a sewer scope if the home warrants closer attention to the main sewer lateral.
Basement plumbing and past renovations are areas where issues sometimes hide. Finished basements in older homes occasionally have drain work that was done without proper permits or with materials that have since deteriorated. We look for signs of this and explain what we find.
The Sewer Scope Option
A pre-purchase plumbing inspection covers the interior plumbing and visible systems. It does not include the underground sewer lateral, which connects your home to the city’s sewer main.
The sewer lateral is the homeowner’s responsibility. If it has structural damage, significant root intrusion, or a collapsed section, repair costs can range from several thousand dollars to significantly more, depending on the scope. These issues are not visible during a standard home inspection or walkthrough.
A sewer scope is a camera inspection of the main sewer lateral. It is a separate service from the plumbing inspection and is particularly worth considering when:
- The home was built before 1980
- There are mature trees on the property or nearby
- You notice slow drains, gurgling, or drain odours during the showing
- The neighbourhood has a known history of clay or cast-iron sewer laterals
- The home has a finished basement, and you want added reassurance
We can discuss whether a sewer scope makes sense for the specific home you are buying and help you understand the associated risk factors before you decide.
When Buyers Usually Book This
Pre-purchase plumbing inspections are most useful when:
- The home is older or has had multiple renovations over the years
- You notice slow drains, staining, or musty smells during a showing
- The hot water tank appears older, or there are visible plumbing modifications
- Poly-b piping is present or suspected
- The property has a finished basement, and you want extra reassurance before conditions come off
- You want a second, more detailed opinion on the plumbing before committing
Timing matters. The inspection is most useful before conditions are waived, when findings can still inform negotiations or allow for further investigation.
What to Expect During the Visit
We keep the visit practical and the communication clear.
Homeowners and buyers can expect:
- A conversation at the start about what you have noticed and what you are most concerned about
- A thorough inspection of the accessible plumbing systems
- Plain-language explanation of what we are seeing as we go through the home
- A summary of findings, including anything that needs attention now or is worth monitoring
- Honest guidance on what the findings mean for the home and what to consider next
Our goal is clarity. If everything looks solid, we will tell you that. If there is something worth knowing, we will explain it without alarm so you can make an informed decision.
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Why People Choose Harper's as Their Calgary Plumbers
We’re proud to provide our Calgary area neighbours with the best plumbing company and drain cleaning services they need. Our clients love working with us because we work to fully understand your needs.
For us, it is not simply a one time invoice or job, every interaction is the opportunity to build a strong relationship for years to come. Life has unexpected challenges and can throw unique plumbing and drain cleaning problems your way. We are here to help solve those for you.
Frequently Asked Questions About Pre-Purchase Plumbing Inspections
Find quick answers to common pre-purchase plumbing Inspections questions. If you don’t see what you’re looking for, our team is happy to help
A general home inspection includes a basic look at plumbing fixtures and visible systems, but it is not the same as having a licensed plumber assess the plumbing in detail. A plumber brings more focused experience to drainage performance, pipe materials, hot water system condition, and the kinds of issues common to older Calgary homes.
Ideally, before your conditions are removed, so any findings can inform negotiations or allow you to request repairs or credits before closing. We try to accommodate tight timelines that come with real estate transactions.
It depends on the home. For older homes, homes with large trees on the property, or homes where you noticed drain symptoms during the showing, a sewer scope is often a worthwhile addition. We can help you weigh that decision based on what we see during the plumbing inspection.
We provide clear findings and notes from what we observed. If a sewer camera inspection is included, we provide the footage on a USB for your records, which can also be useful for insurance purposes or future reference.
Yes, with the understanding that some plumbing and drainage systems in condos are shared infrastructure. We focus on what is within the unit and what is accessible, and explain any building-level considerations we identify.
We explain what we found, what it means in practical terms, and what the options are. Finding something during an inspection, before conditions come off, is the best time to do so. Many buyers use inspection findings to negotiate repairs, a price adjustment, or at minimum, to plan for what the home will need after possession.
If you want to move forward with repairs after possession, we can help. Many buyers use the pre-purchase inspection to plan repairs or upgrades before they move in, or to have a clear picture of what will need attention in the first year of ownership.
For most buyers, especially those purchasing older homes in Calgary, yes. Plumbing issues discovered after possession become the new owner’s problem and expense. An inspection before conditions come off gives you the information while you still have options.
When you’re in a pickle, we’re here to help.
We started giving pickles to customers for a simple reason, when you go over to someone’s house, you bring something with you.
That’s always felt right to us.
We’re working in people’s homes, not just on plumbing systems, and we never want that to feel cold or transactional. The pickles are a small, neighbourly way to say thanks for having us in, and to leave behind something a little more memorable than the usual magnet or business card.
It’s simple, but it reflects how we like to do things around here: personal, thoughtful, and with a bit of character.
What Our Clients Are Saying
We’re always so grateful to our customers who take the time to leave us reviews and who often refer us to family, friends and neighbours as well as continue to use us whenever their plumbing needs arise.
