Perimeter Drain Replacement: Protecting Your Home's Foundation

Jack Japuncic • September 22, 2025

Perimeter Drain Replacement in Coquitlam BC 

A properly functioning perimeter drain system, also referred to as weeping tile or a French drain, is crucial for protecting your home’s foundation from water damage. This network of perforated pipe, typically PVC perforated pipe or older clay tiles, runs around the perimeter of the house, collecting groundwater and directing water away from the foundation. However, over time, especially in older homes, these systems can fail, leading to costly repairs. Whether you need perimeter drain cleaning, a sewer line repair, or complete perimeter drain replacement, understanding the signs and options is essential.

Why Your Perimeter Drain Might Need Repair or Replacement

Several factors contribute to the eventual need for perimeter drain repair or replacement. Many older perimeter drain systems, often using clay tiles, suffer from age-related deterioration. Clay tiles are susceptible to cracking and root intrusion, allowing debris to enter and causing blockages. Even newer PVC pipes can be affected by root intrusion, clogs from sediment buildup, or improper installation. A failing drainage system may manifest in several ways:



  • Wet basement: Persistent dampness or water in your basement is a classic sign of a failing perimeter drainage system. Water stains on your basement walls are another indication of a leak.
  • Water damage: Water damage to your foundation wall, basement or crawl space, and even damage to your home’s interior, are all serious consequences of a failing drain system.
  • Foundation issues: Cracks in your foundation can be caused by prolonged exposure to moisture.
  • Clogs and blockages: A slow-draining or completely clogged drain tile system indicates a serious problem.
  • Water stains on your basement walls: These stains are a clear indicator that water is escaping the pipe and seeping into your home.

Diagnosing the Problem

A thorough inspection is crucial to determine the extent of the problem. Our team at KCs Plumbing uses advanced techniques, including a drain camera for a detailed camera inspection, to locate blockages, pinpoint leaks, and assess the overall condition of your drain tile system.



The inspection process reveals the type of drainage system you have, identifies any existing damage, and helps us explain the options available to you. This may involve a simple drain cleaning or complete replacement. The inspection done by our drainage experts will help determine whether you need drain repair, or a complete replacement.

Repair vs. Replacement

The decision to repair or replace your perimeter drain depends on the extent of the damage. Minor issues like clogs can often be addressed with drain cleaning or sewer line repair. However, extensive damage to the drain tile, such as widespread cracking or root intrusion, usually means complete drain replacement. 

Perimeter Drain Replacement: A Comprehensive Approach

Replacing a perimeter drain involves excavating a trench around the perimeter of the house, removing the old pipe and installing new PVC perforated pipe (a cost-effective and durable option) with proper grading to allow water to drain away from the building. We ensure the new drain system is properly installed to direct water away from the foundation. This type of work is quite technical and involves careful consideration of the slope and proper integration with existing drainage solutions. Drainage needs to set up at 1% - 2% or about 1 inch of fall per 10 feet of run. In this way, gravity is employed to direct water away from your foundation.

Maintaining Your Perimeter Drains

Even a new perimeter drain requires maintenance. Regular inspection and occasional drain cleaning can help prevent future problems and maintain your perimeter drain for many years. A proper functioning perimeter drainage is vital, and we can help you maintain yours with regular inspections every few years.

Why Choose KCs Plumbing?

Our team at KCs Plumbing are drainage experts with years of experience in perimeter drainage installation and repair. We offer comprehensive drainage solutions, from simple drain cleaning to complete perimeter drain replacement. Our team is committed to getting the job done right the first time, providing cost effective solutions tailored to your specific needs.


If replacement is required, we will excavate carefully, replace the entire perimeter drain, and restore the landscape as well as can be expected. Our focus is on providing long-term solutions that protect your home from water damage.


Our customers would not hesitate to recommend us for this type of drainage repair. We can help you keep your basement dry and waterproof, protecting your investment from the threat of water damage. Count on our team for all your drainage needs.



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