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🏠 Plumbing Inspections Before Buying a Home

August 27, 2025

Avoid costly surprises—know what’s behind the walls before you sign the dotted line.

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Introduction


Buying a home is one of the biggest investments you’ll ever make. While most buyers focus on curb appeal, layout, or square footage, one of the most critical systems to inspect is the plumbing. Ignoring this step could leave you with expensive repairs shortly after moving in.


Whether you're buying a historic property in Galt or a newer home in Hespeler, this article will help you understand why a plumbing inspection should be non-negotiable before purchasing a home in Cambridge, ON.


1. What Is a Plumbing Inspection?


A plumbing inspection is a thorough review of the home’s water and drainage systems, identifying any issues that may not be visible during a general home inspection.


A typical inspection includes:


  • Water supply lines
  • Drain and vent systems
  • Water heater functionality
  • Fixture performance (toilets, faucets, tubs)
  • Signs of leaks or corrosion
  • Sump pumps and backwater valves
  • Main shut-off valve location and function
  • Sewer line condition (often via camera inspection)


2. Why Plumbing Inspections Matter 🛠️


Hidden plumbing problems can lead to major costs down the road—ranging from water damage and mould to full pipe replacements.


Common issues found in older homes around Cambridge:


  • Galvanized steel or cast iron pipes near the end of their lifespan
  • Improper venting that causes slow drains or sewer smells
  • Leaking fixtures that have caused damage behind walls
  • Low water pressure due to mineral buildup or poor pipe design
  • Outdated or non-functional shut-off valves


Spending a few hundred dollars on a plumbing inspection could save you thousands in emergency repairs later.


3. Red Flags to Watch For During the Walkthrough 🚩


While a licensed plumber should handle the full inspection, here are signs you can look for:

  • Water stains on ceilings or walls
  • Musty odours near sinks or basements
  • Slow-draining sinks and tubs
  • No visible shut-off valves under sinks or toilets
  • Rusty water when faucets are first turned on


If you notice any of these issues, request a full plumbing inspection before making an offer or closing the deal.


4. Sewer Line Scope: Is It Worth It?


Absolutely. Many older homes in Cambridge have clay or cast iron sewer lines—both prone to cracks, roots, and blockages.

A sewer camera inspection can reveal:


  • Tree root intrusion
  • Collapsed sections
  • Grease buildup or debris
  • Offset or separated joints


Replacing a main sewer line can cost upwards of $5,000–$10,000, so it’s smart to inspect before buying.


5. Water Heater Checks: Age, Leaks & Location 🔥


A professional will also inspect the hot water tank to ensure:


  • It’s not leaking
  • The tank is appropriately sized for the home
  • It’s properly vented (for gas units)
  • It meets code and safety standards


Tip: Most water heaters last 8–12 years. Check the serial number to see its age.


6. How to Arrange a Plumbing Inspection in Cambridge


You can request a plumbing inspection through a local plumber like Reliant Plumbing. While a general home inspector may note surface-level issues, a plumber will do a deeper diagnostic, often using cameras, pressure gauges, and moisture meters.

Expect to pay between $200–$500 depending on the size of the home and scope of the inspection.


Final Thoughts


Plumbing issues are often hidden and expensive, which makes a thorough inspection essential before buying a home. From aging pipes to sneaky leaks, catching problems early gives you the power to negotiate repairs or price reductions—or walk away from a money pit.



If you’re purchasing a home in Cambridge or surrounding areas, reach out to Reliant Plumbing for a comprehensive plumbing inspection. We’ll help ensure your new home is a safe, dry, and worry-free investment.

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