Winnipeg · 2026 Price Guide
Grading & Drainage Cost in Winnipeg: What You’ll Actually Pay
Nobody wakes up excited to spend money on drainage. There’s no photo to post, nothing to show the neighbours. But it’s the one job in your yard that protects everything else — the patio, the lawn, and the basement you’d very much like to stay dry. Here’s what it costs to do properly.
Regrading a Winnipeg yard typically runs $1,500 to $8,000 depending on how much of the lot needs reshaping. Add a proper drainage system — French drains, catch basins, dry wells — and a comprehensive fix commonly lands $6,000 to $15,000+. Small fixes like extending downspouts can cost almost nothing and solve more than you’d think.
2026 Grading & Drainage Prices at a Glance
| Job | Typical cost | How it’s priced |
|---|---|---|
| Downspout extensions | Under $200 | Per downspout |
| Core aeration (if compaction is the issue) | $110–$225 | Per visit |
| Swale | $5–$15 / linear ft | Per linear foot |
| French drain | $10–$25 / linear ft | Per linear foot |
| Dry well installation | $1,350–$4,255 | Per well |
| Minor grading correction | $1,500–$4,000 | Per area |
| Standard residential regrading | $3,000–$8,000 | Whole lot |
| Comprehensive regrading + drainage system | $6,000–$15,000+ | Whole project |
Drainage is the most site-specific job in landscaping — no two lots flood the same way. These are planning ranges, not quotes.
Why Winnipeg Yards Flood in the First Place
Three things work against us, and they compound.
The clay
We sit in the Red River Valley on heavy clay — the famous gumbo. Clay drains about as fast as a parking lot. Water hits it, sits on top, and goes looking for somewhere to be. If your yard doesn’t give it a clear direction, that somewhere is often your foundation.
The spring melt
We don’t get gentle rain that eases in. Five months of snow melts over a couple of weeks in April, dumping an enormous volume of water across every property at once. A yard that handles a summer sprinkle fine can fail completely under snowmelt.
Freeze-thaw quietly reshaping your grade
Our ground heaves and shifts every winter. Over years, that changes the shape of your yard — a spot that used to drain now holds water, because the grade moved on you without asking.
Fix Number One (and It’s Usually This): Grading
Before anyone sells you a fancy pipe system, the first question is always the same: which way does your yard slope? Nine times out of ten the root problem is grade. If the ground tips toward your house, water goes toward your house.
The fix is reshaping the surface so water runs away from the foundation. A common target is roughly six inches of fall over the first ten feet. Get that right and a surprising number of “drainage problems” quietly disappear — often for far less than a full pipe system would have cost.
The best time to diagnose drainage is when you’ve just watched where the water actually pooled. That single observation tells a good landscaper most of what we need to know before we ever pull out a level — and it’s free information you only get a few weeks a year.
When Grading Isn’t Enough: The Drainage Toolkit
Sometimes the surface grade is fine but the clay simply can’t accept water fast enough. That’s when we add actual plumbing to the yard:
- French drains — a gravel-filled trench with perforated pipe that collects groundwater and moves it elsewhere. The workhorse for wet spots and foundation protection.
- Catch basins — buried boxes with a grate that grab surface water from a low spot and pipe it away. Great for that one corner that always ponds.
- Swales — a shallow graded channel, often grassed, that guides water across the yard naturally. Elegant when there’s room.
- Dry wells — an underground pit that receives collected water and lets it seep away slowly, buying the clay time to catch up.
- Downspout extensions — the cheapest fix on earth and the one everybody forgets. Getting roof water four to six feet from the foundation solves more than you’d believe.
Most real yards need a combination. Surface water and groundwater are different animals, and a proper plan handles both.
What Actually Drives the Price
1. How much of the lot needs reshaping
Correcting one low corner is a different job from regrading an entire property. Volume of soil moved is the biggest single lever.
2. Access for equipment
Grading means moving earth. If a machine can reach the work, it goes quickly. If everything has to be barrowed through a narrow gate by hand, the labour hours climb fast.
3. Whether soil has to come in or go out
Importing topsoil or hauling away excess both add material and trucking costs beyond the labour itself.
4. How much pipe the yard needs
French drains and swales are priced per linear foot, so the length of run matters directly. A single problem area is modest; a full perimeter system is not.
5. What gets rebuilt afterward
Regrading disturbs the surface, so budget for restoring what was there — usually new sod over the reshaped area. That’s a real line item people forget.
Wrong slope — a drain or swale that isn’t pitched correctly just moves the puddle six feet over. Not deep enough — a French drain laid too shallow silts up and fails fast in our conditions. Cheap materials — wrong gravel, no fabric wrap, flimsy pipe, and it stops draining within a couple of seasons. Treating the symptom — installing a pump to fight water that a simple regrade would have sent away for free.
Is It Worth It?
Here’s the blunt math. A comprehensive grading and drainage project is a real expense. A cracked foundation or a finished basement that flooded is a much bigger one. Standing water against a foundation in clay soil creates genuine hydrostatic pressure, and that pressure is what forces water through cracks and joints. Drainage is one of those jobs where the cost of doing it is almost always smaller than the cost of not doing it.
It’s also the foundation for everything else. A patio, a driveway, a new lawn — all of it sits on top of your grade. Proper grading and drainage work, part of our broader grading, drainage & systems services, is what keeps the expensive things you build on top of it from heaving and settling.
When Should I Book?
The working window runs from once the ground thaws through to late fall freeze-up. Spring is ideal for diagnosis, since you’ve just seen where the water went. Book early — drainage work often needs to happen before the hardscape project you actually want, so leaving it to June can push your whole season.
Frequently Asked Questions
How much does it cost to fix drainage in Winnipeg?
Anywhere from under $200 for downspout extensions to $15,000 or more for comprehensive regrading plus a full drainage system. Standard residential regrading commonly runs $3,000 to $8,000. Most yards land somewhere in the middle, and the only way to know your number is to have someone read your specific grade and soil.
Do I need a French drain or just better grading?
Often just grading. It’s the first thing to check and the most common real fix. French drains come in when the surface grade is already correct but the clay can’t move water fast enough, or when you’re protecting a foundation from groundwater. A proper assessment tells you which one you actually need.
Why does my yard flood every spring but seem fine in summer?
Spring snowmelt dumps a huge volume of water across your whole property in a short window, far more than a summer rain. A yard graded to handle normal rain can still fail under melt. It’s usually a grading problem that only shows itself when the water volume spikes.
Is standing water actually bad for my house?
It can be. In Winnipeg’s clay, saturated soil against the foundation creates pressure that pushes moisture through cracks and joints. Beyond the house, standing water drowns grass, breeds mosquitoes, and softens the ground under patios and walkways.
When is the best time to have drainage work done?
Once the ground has thawed, through spring, summer, and fall. Spring is often ideal for planning because you’ve just seen exactly where the water pooled during the melt, which tells a landscaper most of what they need to know.
Got a corner that never dries out?
BerryHill reads your actual grade, finds where the water is really going, and gives you an honest plan to send it packing — before it reaches your foundation.