Replacing the perimeter drain on a Greater Victoria home runs $8,000 to $25,000 at published BC rates, and $8,000 to $15,000 on an average bungalow or townhome (HYDROPRO Plumbing, August 2026). Depth, disposal and how much of your yard has to come apart decide where in that range your house lands, and several of those pieces are figures you can look up today.
A perimeter drain is the perforated pipe buried at the base of your foundation footing. It is the drain that fails in older Greater Victoria houses, where dense marine clay holds water against the wall instead of letting it soak away, and it is what almost every drainage quote in this region is actually for.
Where your house lands inside that range
Scope decides it. At the low end sits a single failed section rather than the whole perimeter: a Metro Vancouver plumbing firm puts a one-section repair at $3,000 to $8,000 and the camera inspection that identifies it at $250 to $500 (HYDROPRO Plumbing, 2026).
The top of the range belongs to full-perimeter jobs on landscaped lots. A Fraser Valley drainage installer publishes $15,000 to $25,000 for an existing home with nothing in the way, rising to $25,000 to $50,000 once patios, walkways and garden beds have to come out and go back (Back40 Landscaping).
No neutral cost index publishes a Victoria-specific figure for this job, so those published BC sets are what a homeowner here has to work from. They are not counting different pipe. They are counting different amounts of surface work, which is the single most useful thing to know before you compare quotes on your own house.
The parts of the price that are actually published
Most of a drainage quote is site-specific and cannot be published by anyone. Some of it can be, and those pieces are worth knowing because they are the same for every contractor working in the region.
| Component | Published figure | Source |
|---|---|---|
| Camera inspection | $250 to $500, often credited toward the work | HYDROPRO, 2026 |
| Full replacement, bungalow or townhome | $8,000 to $15,000 | HYDROPRO, 2026 |
| Existing home, hardscaping removed and rebuilt | $25,000 to $50,000 | Back40 Landscaping |
| Landfill disposal, general refuse | $160 per tonne plus a $10 bin user fee, billed on weighed weight | CRD Hartland, 2026 |
| Minimum drain pipe | 100 mm diameter, covered on top and sides by 150 mm of clean crushed stone | BC Building Code, Section 9.14 Drainage |
| Stormwater connection | Plumbing permit required for a connection to the stormwater utility | City of Victoria |
Disposal is metered, and the rate is public
Every quote carries a disposal line, and in this region it is not an estimate. Hartland Landfill weighs your contractor in and out and bills the difference. General refuse runs $160 per tonne plus a $10 bin user fee, and the region publishes a worked example: 250 kg of garbage costs $50.00 (Capital Regional District). Bulky waste is charged at $254 per tonne.
A perimeter drain job produces spoil, broken concrete, old pipe and removed landscaping, and all of it is billed by weight rather than by the load. That is why two houses with the same length of pipe can carry very different disposal lines, and it is a fair question to ask any contractor to break out.
The outlet is the line item nobody quotes for
This is the part almost every cost page skips, and it is often the difference between a straightforward job and an expensive one. A new perimeter drain has to send water somewhere legal. Sentence 9.14.5.1 requires foundation drains to discharge to a sewer, a drainage ditch or a dry well, and Article 9.14.5.3 puts a dry well no less than 5 m from the foundation (BC Building Code, Section 9.14 Drainage).
On an older Victoria lot, that outlet frequently does not exist in a form anyone would approve today. The District of Saanich tells homeowners to make sure foundation drains and groundwater sump pumps go to the stormwater system rather than the sanitary sewer, and separately advises discharging downspouts about 1.2 metres from basement walls (District of Saanich). Where a new connection is needed, the City of Victoria requires a plumbing permit for the installation or alteration of a connection to the stormwater utility (City of Victoria).
There is a related mistake worth checking on your own property before you collect quotes. The BC Building Code Appeal Board has ruled that foundation perimeter drains cannot form part of a storm drainage system, which is why driveway and area drains have to run to the storm sewer in solid pipe instead of being tied into the perforated foundation pipe (Appeal Board Decision #1226). A tie-in like that feeds grit straight into the drain protecting your foundation, and a quote that leaves it in place is quietly cheaper for a reason.
Why the cheapest quote can still meet Code
Meeting the Code is a floor, not a description of a good system. The minimum in Section 9.14 of the BC Building Code is a 100 mm pipe covered on top and sides by at least 150 mm of clean crushed stone, and the Code also allows a builder to drain a foundation with a granular layer and no pipe at all. It says nothing about filter fabric around the drain rock.
On the dense marine clay under much of Greater Victoria, those omissions matter. A drain can pass inspection and still silt up. When two quotes are far apart, the gap is often pipe type, gravel spec and whether the clear stone gets wrapped, and none of that shows up as a line called quality.
Restoration is the swing factor, not the pipe
Compare the two published ranges again. An existing home with clear ground sits at $15,000 to $25,000. The same job where hardscaping has to be lifted and rebuilt sits at $25,000 to $50,000 (Back40 Landscaping). Nothing about the drain changed. What changed is how much of your yard has to be taken apart to reach the footing and put back afterwards.
Walk your own perimeter before anyone quotes it. Concrete walkways, patios, retaining walls, decks over the side yard, mature plantings and a driveway tight to the wall all sit directly on the number. So does machine access, because a lot that only takes a hand dig stretches the schedule. We excavate, replace the pipe and restore the ground on Greater Victoria homes, and the scope of that last part is usually what separates two honest quotes.
Does insurance cover it?
Usually not. Most home policies treat failed perimeter drains and the resulting seepage as maintenance and wear rather than a sudden, covered event, so replacement typically comes out of pocket. Coverage varies by insurer and by the endorsements on your policy, so read your own wording, and do not build a budget around a claim.
So what do you do with the quotes in front of you?
- Ask what the drain scope actually showed. A camera inspection at $250 to $500 (HYDROPRO, 2026) tells you whether you are buying a full perimeter drain replacement or a single failed section. The warning signs are worth reading first.
- Ask where the water is going to go. If the quote does not name the outlet, the storm connection and the permit, the number is incomplete.
- Ask what is being restored and to what standard. This is the largest variable in every published range, and it is the one most often left vague.
- Ask whether the problem is even at the foundation. Water arriving across a sloped lot is a job for a French drain, and the difference between the two systems changes the price completely. A damp crawl space with no surface source points at crawl space drainage instead.
Any discussion of severity or remediation on a specific house requires an on-site inspection. We look at your grade, downspouts, soil and where the water is showing up, then put the scope and timeline in writing. Send us the details and we will arrange a visit.
Sources
- British Columbia Building Code 2018, Division B, Section 9.14 Drainage
- BC Building Code Appeal Board, Decision #1226, Area Drains
- Capital Regional District, Hartland Landfill Rates and Accepted Items (2026)
- City of Victoria, Plumbing Permits
- District of Saanich, Flood Information for Homeowners
- HYDROPRO Plumbing & Water Ltd, Perimeter Drain Replacement Cost in Vancouver (August 2026)
- Back40 Landscaping, Perimeter Drainage Cost in the Fraser Valley
Estimates vary by property. Book a site assessment for a scope and price specific to your home.