Drainage Contractors in Coquitlam
In Coquitlam the drainage work splits between older established neighbourhoods with aging perimeter drains and root intrusion, and newer development on Burke Mountain and the east side where surface grading and stormwater management are the issues. We work across both — perimeter drain repair and replacement, yard drainage, and the drainage that comes with hillside and new-development properties.
New development and drainage
On newer Coquitlam subdivisions, especially on sloped ground, the drainage issues are often about how the lot was graded and whether the storm connections handle the volume. Surface water collecting in a side yard, a swale that was not finished correctly, or a downspout with no underground carry can all leave a new home with a drainage problem that was not addressed during the build. The good news is these are often fixable with targeted grading and drain work rather than a full perimeter system.
Older neighbourhoods and aging perimeter drains
While the newer developments on Burke Mountain get the surface grading calls, the established neighbourhoods in central Coquitlam — Maillardville, Harbour Chines, the areas around Mundy Park — have homes built in the 1960s and 1970s with perimeter drains that are now 50 years old. Those systems are reaching the end of their service life, and the first sign is usually dampness at the basement floor joint after a wet week. A camera inspection tells us whether the existing drain has collapsed, silted, or is still functioning, and whether a targeted repair or a full replacement is the right call.
Basement waterproofing, wet basement repairs & drain inspections in Coquitlam
Water in a basement is rarely just one problem. It can be a failed perimeter drain letting groundwater in at the footing, a crack in the foundation wall, or a waterproofing membrane that has broken down over decades. We start with a drain camera inspection to see what is happening inside the pipe, then determine whether the fix is a wet basement repair, basement waterproofing with an exterior membrane and drainage board, or damp proofing of the foundation wall to stop moisture wicking through the concrete. For older Coquitlam homes with original drainage, the answer is often a combination of drain repair and waterproofing — and we show you the camera footage before recommending anything.
How a drainage system protects your Coquitlam home
Most people never think about their drainage system until it stops working. Here is what a complete system looks like — and where water goes when everything is doing its job.
Rain on roof
Gutters collect it
Downspout
Carries it down
Membrane
Protects the wall
Drain rock
Filters the water
Perimeter drain
Collects groundwater
To sump/storm
Discharged safely
A working drainage system moves water off the roof, away from the foundation wall, and out to a safe discharge point — before it can build up against your foundation.
Before & after — Coquitlam drainage work
The kind of results we get on the jobs we do every week across Coquitlam.
Before
AfterA wet basement with water at the floor joint — the original perimeter drain had collapsed. We replaced the system and it's been dry through every storm since.
Before
AfterA soggy yard where the downspout dumped onto the lawn. We tied the downspout underground, ran a French drain along the foundation, and the yard dried out within a week.
Drainage services in Coquitlam
These are the services we are most often called for in Coquitlam. Each links to a page with more detail on what is involved.
Yard Drainage
Learn morePerimeter Drainage
Learn moreWet Basement Repairs
Learn moreBasement Waterproofing
Learn moreStorm Drainage
Learn moreDrain Cleaning
Learn moreDrain Camera Inspection
Learn moreSump Pumps
Learn moreCoquitlam drainage services — detailed pages
For each of the services below, we have a dedicated Coquitlam page covering what the work involves, what the local conditions mean for that service, and answers to common questions from homeowners in Coquitlam.
Drain Tile Repair in Coquitlam
Read moreDrain Tile Replacement in Coquitlam
Read moreDrain Tile Cleaning in Coquitlam
Read moreDrain Inspection in Coquitlam
Read moreWet Basement Repair in Coquitlam
Read moreFoundation Waterproofing in Coquitlam
Read moreBasement Leak Repair in Coquitlam
Read moreCoquitlam drainage FAQs
My new Coquitlam home already has a drainage problem. Shouldn't it be covered?
It may be under the new home warranty, depending on the issue and the timeframe. We can assess and document the problem so you have the information to pursue that if applicable, and we can tell you whether the fix is a warranty item or an independent drainage improvement.
How do I know if my Coquitlam home's perimeter drain needs replacing?
If the home was built before the 1990s and the basement has any dampness after rain, an inspection is worth doing. The camera shows whether the drain is clay tile or corrugated pipe that has silted or collapsed, or whether it is still functioning. We show you the footage and explain whether a repair will hold or a replacement is the honest answer.
Areas we serve around Coquitlam
Request Drainage Service
Tell us what is happening and where. We will call you back the same business day to discuss the problem and arrange an inspection if needed.