Basement Waterproofing in Richmond Hill

The unit prices are the same ranges across the city: $100 to $250 per linear foot for an interior system, $250 to $450 per linear foot for exterior excavation and membrane, and from around $400 for a single crack injection. What changes between Oak Ridges and the south end is which of those a house needs, since a moraine lot often calls for drainage and grading outside while a clay lot needs pressure taken off the wall, and either way the quote covers only the sections the diagnosis supports.

Possibly, and it changes the correct repair. On permeable moraine soil water travels rather than pooling, so a foundation sitting in its path takes a flow rather than sustained pressure. Where that is the cause the fix is often outside, with regrading, a swale to turn the water, and downspouts moved off the uphill side, all for far less than an interior system would cost, so it pays to diagnose before anyone proposes one.

If the crack is not structural and is actively letting water in, we inject it from inside with polyurethane or epoxy resin, which fills the path the water follows through the wall in a few hours of work. When pressure from saturated clay or movement in the ground is what keeps opening it, injection on its own just means a new crack next season, so we pair it with drainage work outside.

Yes. For the condo and commercial buildings along Yonge we inject cracks in the slab and walls, rebuild expansion joints, and apply membranes made to carry vehicle traffic on the parking deck. Boards need a reserve fund case before they can spend, so the report is written to go straight into one.

Plan on three to five days if a wall is being dug out and membraned from outside, since access and whatever turns up in the excavation set the pace. Work from inside is quicker, a few hours for crack injection and one to two days for an interior perimeter system, and we put the expected range in writing before starting rather than revising it halfway through.

Every system we install carries its own written warranty, and you receive it before the work begins. A resin injection, an interior perimeter drain, and an exterior membrane each carry different terms, and we explain yours in plain language at the start so its limits never come as a surprise.

The wall work itself does not change from one end of Richmond Hill to the other: excavate the failing section, clean the concrete, seal cracks and tie holes, swap the old damp proofing for a membrane that holds back standing water, and check the weeping tile before backfilling. What goes with it depends on the ground, with drainage to take pressure off the wall on the south end clay, and grading and water routing on the moraine to the north, where they often matter as much as the membrane. Exterior work of this kind costs $250 to $450 per linear foot, quoted wall by wall for the sections that need it.

Yes, for the problems that let water in, and many older south end houses have block foundations with exterior parging rather than the poured walls of the newer subdivisions, so they leak through cracked parging, open mortar joints, and the joint where the wall meets the footing. We seal those cracks and joints and, where the wall needs it, waterproof it from outside. Horizontal cracking or a wall that has moved inward is a structural matter, and we put that in writing with a recommendation for a structural assessment first.

Working out which kind of water you have, because here that changes the repair. The source might be groundwater arriving from the uphill side of a moraine lot, a window well, a tie hole, or a crack, and since we never quote over the phone, the visit ends with the diagnosis and an estimate, both in writing, plus dated photographs of what we found. Water coming in now is an emergency call, and we answer those around the clock.