Perimeter Drainage Services — Lower Mainland BC

Components

Perforated pipe at footing level, filter fabric and washed rock, cleanouts at corners, downspout leads kept separate from the perimeter line, and a discharge to storm or sump.

Maintenance

Flush the system on a regular cycle and keep leaves out of downspout leads — most perimeter failures start as sediment build-up.

Discharge rules

Municipalities differ on whether perimeter and roof water can share a line. A local contractor will know your city's requirements.

Perimeter Drainage work on site

Excavated foundation trench with new perforated perimeter drain pipe and drain rock — Perimeter drain replacement

Technician feeding a drain camera into a cleanout with an inspection monitor — Camera inspection

Steel trench drain grate carrying rainwater off a concrete driveway — Surface and trench drainage

Perimeter Drainage — before and after

Real examples of the problem and the finished result after the work is done.

Old clay perimeter drain tile collapsed and packed with roots and silt in a muddy trench — Failed drain tile replacedRoot-choked clay tile swapped for perforated pipe, filter fabric and clean drain rock.

New perforated perimeter drain pipe in clean drain rock beside a waterproofed foundation wall — Failed drain tile replacedRoot-choked clay tile swapped for perforated pipe, filter fabric and clean drain rock.

Backyard lawn flooded with standing water after heavy rain — Standing water cleared from the yardCatch basins and a French drain carry rainfall away instead of pooling on the lawn.

The same backyard with a dry green lawn and a catch basin grate after drainage work — Standing water cleared from the yardCatch basins and a French drain carry rainfall away instead of pooling on the lawn.

How a working drainage system protects a home

Rain runs off the roof, into the leaders, down through drain rock to the perimeter drain, then out to the storm connection or sump — keeping water off the foundation wall.

Perimeter Drainage — quick answer

Perimeter drainage is the system that rings the footing and carries groundwater to the storm connection or sump. Most BC municipalities require it, and most insurers expect it to be maintained.

Key facts

Components: Perforated pipe at footing level, filter fabric and washed rock, cleanouts at corners, downspout leads kept separate from the perimeter line, and a discharge to storm or sump.
Maintenance: Flush the system on a regular cycle and keep leaves out of downspout leads — most perimeter failures start as sediment build-up.
Discharge rules: Municipalities differ on whether perimeter and roof water can share a line. A local contractor will know your city's requirements.
DRYHOMEBC covers 14 Lower Mainland and Fraser Valley cities: Vancouver, Burnaby, New Westminster, Richmond, Surrey, Delta, White Rock, Coquitlam, Port Coquitlam, Port Moody, Maple Ridge, Langley, Abbotsford and Chilliwack.
Quotes are free and carry no obligation.

Perimeter Drainage FAQs

What is perimeter drainage?

Perimeter drainage installation, cleaning and repair contractors protecting foundations across Metro Vancouver and the Fraser Valley.

What should I know about components?

Perforated pipe at footing level, filter fabric and washed rock, cleanouts at corners, downspout leads kept separate from the perimeter line, and a discharge to storm or sump.

What should I know about maintenance?

Flush the system on a regular cycle and keep leaves out of downspout leads — most perimeter failures start as sediment build-up.

What should I know about discharge rules?

Municipalities differ on whether perimeter and roof water can share a line. A local contractor will know your city's requirements.

How much does perimeter drainage cost in the Lower Mainland?

Cost depends on the length of the affected run, excavation depth, access and restoration. Most contractors confirm the scope with a camera inspection or site visit before pricing. Quotes through DRYHOMEBC are free.

Which cities is perimeter drainage available in?

DRYHOMEBC covers 14 Lower Mainland and Fraser Valley cities: Vancouver, Burnaby, New Westminster, Richmond, Surrey, Delta, White Rock, Coquitlam, Port Coquitlam, Port Moody, Maple Ridge, Langley, Abbotsford and Chilliwack.

Managing a commercial or multi-family building?

Apartments, stratas, restaurants, parkades and industrial sites are scoped differently than houses. Jump straight to the property type you manage.

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Perimeter Drainage by city

Perimeter Drainage in Vancouver Perimeter Drainage in Surrey Perimeter Drainage in Richmond Perimeter Drainage in New Westminster Perimeter Drainage in Burnaby Perimeter Drainage in Coquitlam Perimeter Drainage in Port Coquitlam Perimeter Drainage in Port Moody Perimeter Drainage in Delta Perimeter Drainage in Langley Perimeter Drainage in White Rock Perimeter Drainage in Maple Ridge Perimeter Drainage in Abbotsford Perimeter Drainage in Chilliwack