Basement Waterproofing in Burlington

By the length of wall treated. An interior drainage system runs $100 to $250 per foot of wall, excavating and membraning the outside runs $250 to $450 per foot, and injecting a single crack starts around $400. It is rare for a Burlington house to need all four walls treated, and the written quote covers only the stretches where the diagnosis found water coming through.

Very possibly, and it is worth establishing before spending anything on the walls. Brant Hills climbs toward the escarpment, and rain soaking into the lots above yours moves through the soil and presses against whichever wall faces uphill. That side often dries out once regrading, a swale and longer downspout runs send the water around the house, so we walk the lot and the neighbouring grades before we look at the foundation.

It depends on which of Burlington's two water problems you have. On a lower city lot near the lake in Freeman or Aldershot, where groundwater bears on the wall for weeks each spring, an exterior membrane with new weeping tile takes the pressure off at the source. Where the water arrives in bursts from uphill, or the outside is boxed in by a deck, driveway or fence line, an interior system catches it at the footing for less money and leaves the yard alone.

Those need care about method, because many of the prewar and early postwar houses there stand on block or rubble stone walls that lean on the backfill for part of their stability. Opening a whole side at once can let a wall like that move, so where an exterior membrane really is the answer we dig it in short runs and backfill each one before starting the next. The quote shows the extra days and cost openly, since a faster dig on that kind of wall is a risk we will not take.

Yes. The condominium towers downtown and along the lake, and the newer mid-rise buildings on Fairview Street and Plains Road, sit over underground and podium parking whose membranes eventually wear through under traffic and road salt. We repair and replace traffic bearing membranes, rebuild expansion joints and inject slab cracks, and write the findings up in a form a condo board can take into its reserve fund planning.

Usually not. On many of Burlington's 1970s to 90s houses the wells were set with a short drain that has silted up, or no drain at all, so every spring melt fills the well like a bucket against a basement window that was never meant to sit underwater. Clearing or installing a drain down to the weeping tile, with washed stone around it and a cover where roof runoff pours in, usually ends the problem for far less than an interior perimeter system.

On most Burlington homes it means digging down along the affected walls, stripping the original damp proofing, and replacing it with a proper waterproofing membrane backed by drainage board, with the weeping tile at the footing checked and renewed where it has clogged. On the 1990s and 2000s subdivision stock that is often the upgrade the house needed from the start. On older lakeshore foundations the excavation plan has to protect the wall, and sometimes an interior system is the safer answer. The written quote lists which walls are being treated and why.

Yes, wherever a defect in the wall is what admits the water: poured-wall cracks sealed by injection, parging that has fallen away, soft or missing mortar in block and brick, and tie holes or pipe penetrations that weep. A single crack injection starts around $400. Bowing, fresh stepped cracking, or a crack that keeps opening is a structural question, and we put it in writing as one, with a recommendation to have an engineer assess the wall before any sealing or membrane work goes ahead.

By working out where and when the water arrives before choosing a repair. A leak on the uphill wall during a downpour points to surface water and drainage, seepage at the floor edge through spring points to groundwater, and a wet corner under a downspout often has the simplest fix of all. We trace the entry point, photograph it, and quote the repair that addresses it, which on many Burlington homes is a targeted fix rather than a full perimeter system.