Exterior Waterproofing · Barrhaven, ON
Basement and foundation waterproofing in Barrhaven
Korvex Construction repairs basement leaks and waterproofs foundations from the outside across Barrhaven, from Old Barrhaven and Longfields to Stonebridge and Half Moon Bay. We dig along the leaking wall, repair cracks, waterproof the wall, renew the weeping tile and regrade the surface. Book the free on-site estimate; a written price follows.
- Waterproofing layer
- Weeping tile
- Clear stone
- Compacted backfill
- Dimpled membrane
The local picture
Exterior Waterproofing in Barrhaven
Barrhaven sits on a clay plain, with clay roughly 8 to 10 m deep along the Jock River. Clay takes water in slowly and gives it up slowly, so the soil against a basement wall stays wet through a rainy week. That steady contact is what drives water through a crack or a weak joint, and it is why the footing drain carries so much weight here.
Barrhaven’s first subdivision streets, along Larkin Drive, went up in the late 1960s and early 1970s. On those streets, the original weeping tile and the backfill around it have been in the ground for over fifty years. In the newer phases, the leaks we look for sit more often at settled backfill, a crack in the wall or a downspout that empties beside the foundation.
Clay against the wall, week after week
Old Barrhaven, Longfields, Chapman Mills, Stonebridge, Half Moon Bay
Korvex Construction excavates, repairs and waterproofs basement walls from the outside for Barrhaven homes, and replaces the weeping tile along the footing where it has failed. It starts with a free on-site estimate; once we have seen the wall from inside and out, the written quote follows.
Clay tells on itself inside the basement. Water that sits against a wall for days leaves a white mineral bloom on concrete, a tide line on the floor or a crack that stays dark after the rain has stopped. Those marks tell us which wall to open. When the yard also holds water, a shallow French drain or regrading can be added to the same job, so less water reaches the wall to begin with.
Jock River floodplain and the excavated clay
The Jock River through Barrhaven has a mapped 100-year floodplain, and on regulated land along it, grading and fill can need the Rideau Valley Conservation Authority’s permission. A foundation job involves both: soil comes out, and the yard is regraded afterwards. For a lot near the river, we check the authority’s map before planning the dig and where the excavated clay will go.
Waterproofing protects the wall from water held in the soil around it. A river in flood is a separate hazard, handled through the conservation authority’s mapping and the City.
The walkway, the patio and the side yard
In Barrhaven, the strip along a leaking wall is often built on already: an interlock walkway, a patio at the back door or a side yard of slabs. Those come up for the excavation. Pavers that can go back are lifted and set aside, the base is rebuilt after backfilling, and the surface is laid with a fall away from the house. A walkway that used to slope toward the wall is corrected while the ground is open.
At the site visit
What we check on a lot in Barrhaven
- 01
Whether the lot is inside the regulated area along the Jock River.
- 02
Where water enters: the floor joint, a crack, a window well or a pipe opening.
- 03
Interlock, slabs or a deck along the wall that would be lifted.
- 04
Where excavated clay can be stockpiled and taken away.
- 05
Where the downspouts at each corner send their water.
- 06
The swale and the rear-yard catch basin, kept clear during the work.
What we plan around
Local conditions in Barrhaven
Each point links to the public source it was checked against. At the site visit we check how it applies to your lot.
- Jock River floodplain
The Jock River through south Barrhaven has a mapped 100-year floodplain, and part of it north of the river was cut and filled in 2019–2020 for a new subdivision.
How we build it
What exterior waterproofing involves
Every wall is different, so the drawing shows the parts most exterior jobs share. The order matters: the wall is repaired and sealed while it is open, the drain at the footing is renewed while the trench is down to it, and the ground goes back so it carries water away.
- Find where water enters
Stains, damp patches and the yard outside are read together, so the dig opens the wall where the water actually comes in.
- Locates first
Buried lines are located before any digging along the house.
- Repair, then seal
Cracks are repaired and the wall cleaned before the waterproofing layer goes on, all while the wall is exposed.
- Drain at the footing
The existing weeping tile is checked where the trench reaches it, and replaced where it is clogged, crushed or blocked by roots.
- Backfill that stays put
Backfill is compacted as it goes back, so the ground beside the wall does not sink into a dip.
- Weather
Frozen ground cannot be compacted properly, and coatings need temperatures above freezing, so on most Ottawa sites this is spring-to-fall work.
- Regraded surfaceShaped to fall away from the house, so rain and snowmelt run off.Graded to drain
- Compacted backfillPlaced back against the wall and compacted, so it does not settle toward the house.Compacted in layers
- Waterproofing layerOn the outside face of the wall, between the concrete and the soil.On the outside face
- Foundation wallExposed, cleaned, and cracks repaired from the outside before anything covers it.Cracks repaired outside
- Clear stoneAround the drain, so water from the soil reaches the pipe.Open and free-draining
- Weeping tile at the footingA perforated foundation drain led to an outlet planned for the lot.Led to an outlet
“Vlad and his crew installed my patio in 2 days. Did excellent work and vlad answered any and all questions I asked. I highly recommend Korvex Development for any job you may require.”
Joe Ayoub · Patio installed
“Did awesome work! had them repair a leany fence and they were on time, cheap and super professional”
Josh Cohen-Collier · Leaning fence repaired
FAQ
Exterior Waterproofing in Barrhaven: common questions
Do the pavers along the wall have to be replaced after the dig?
Sound pavers can usually be lifted, stored and relaid on a new base once the wall is done and the backfill is compacted. Cracked or worn ones are priced as new. Korvex lays interlock, so the walkway or patio goes back as part of the same written quote.
Our lot backs onto the Jock River. Can you still dig along the foundation?
Usually, once the conservation authority’s rules are checked. On regulated land along the Jock River, grading and fill can need a Rideau Valley Conservation Authority permit as well as City approval, and its online map shows whether a lot is regulated. We look up your lot before planning the excavation and the regrading that follows it.
Why does our Barrhaven basement leak at the bottom of the wall?
Water that collects at the footing has nowhere to go when the weeping tile is clogged, crushed or missing, and in clay it can sit there for days. It then comes in where the wall meets the floor. Replacing the tile with the wall open, in clear stone and with an outlet that works, deals with that path.
My backyard is near the Jock River. Do I need extra approval?
Possibly. On regulated land along the Jock River, grading, fill and structures can need a Rideau Valley Conservation Authority permit on top of City of Ottawa rules. Its online map shows whether a lot is regulated, and we check what applies to yours before planning the work.
Book a free exterior waterproofing estimate in Barrhaven
Tell us what you want built and send a few photos. We come out, look at what sits under the job, and give you the scope and the price in writing.