Aurora Plumbers Delivering Trusted Plumbing Solutions

Frequently Asked Question

• 1. I keep hearing Aurora is on the Oak Ridges Moraine. Why does that matter for my basement?

  The Oak Ridges Moraine is a huge ridge of sand and gravel that acts like a natural sponge, absorbing rain and snowmelt and slowly releasing it as groundwater. Aurora sits right on it, which means much of the town has a naturally high and seasonally shifting water table, with more groundwater moving through the soil around your foundation than in most of the GTA.

  For your basement, that translates into more or less constant water pressure against the walls and floor, especially in wet seasons. It is why homes here rely so heavily on a working sump pump and good drainage, and why seepage tends to show up faster in a home where those defenses have aged.

• 2. Why is my Aurora water table so high, and why does my sump pump run so much?

  Because of the Moraine. The sand and gravel beneath Aurora holds and channels large volumes of groundwater, so the water table sits close to the surface in many areas and rises further during spring melt and heavy rain. That groundwater naturally collects around the lowest point of your home, which is your foundation.

  A sump pump that runs often is usually doing exactly its job here, not malfunctioning. It is pulling that groundwater out of the weeping tile and moving it away before it builds pressure. The real risk is the pump failing or losing power, which is why a battery backup matters so much in this area.

• 3. Why does my Aurora basement seep water even without a burst pipe?

  Because the water is coming from outside the foundation, not from a fixture. Aurora’s glacial and clay-heavy soil drains slowly and holds moisture, and the high Moraine water table keeps the ground around your foundation wet for much of the year. That builds pressure that pushes water through small foundation cracks, cold joints, and porous concrete.

  The fix is about managing groundwater rather than repairing a pipe, so it usually comes down to grading, sealing, weeping tile, and a properly sized sump pump. If you are seeing recurring moisture, a water leak detection visit confirms it is groundwater and not a hidden line, and shows where it is getting in.

• 4. Why does water pool against my foundation during spring thaw?

  Over winter the ground builds a heavy snowpack, and when it melts quickly along with spring rain, it saturates Aurora’s clay and glacial soil faster than the ground can drain. With the Moraine water table already high, the water has nowhere to go and collects against the foundation, especially on flat lots or where the ground slopes toward the house.

  The defences that matter most are grading that moves water away from the house, clear window wells, downspouts discharging well away from the foundation, and a sump pump that can keep up, ideally with a battery backup since thaws often coincide with storms and outages.

• 5. Should I worry about old clay sewer pipes and tree roots in my older Aurora neighbourhood?

  In older areas like Aurora Village, many homes still run on original clay sewer laterals, and the established tree canopy is a common cause of recurring backups. Roots are drawn to the moisture in the line and work in through cracked joints, slowly choking the pipe until it backs up.

  Snaking clears the roots for a while, but they return, so repeat backups usually point to the pipe itself. A sewer line video inspection shows whether you are dealing with roots in a sound pipe or a cracked lateral, and if it is cracked but intact, trenchless technology can often repair it without digging up a mature yard.

• 6. My Aurora home is a newer build in Bayview Northeast or Aurora Estates. Why am I already seeing drainage problems?

  Newer does not always mean problem-free. The ground around a newer home keeps settling for years, which can shift or create low spots in drain lines, and the disturbed soil backfilled against the foundation drains differently from the surrounding clay, so water collects there. Flat lot grading and construction debris in the lines add to it.

  Combined with the Moraine’s high water table, that is enough to cause leaks or slow drains in a home only a few years old. A camera inspection shows whether it is a settled line, a partial blockage, or grading. If the home is still under builder warranty, check what it covers first.

• 7. Should my Aurora home have a sump pump, and do I need a battery backup?

  Given Aurora’s position on the Moraine and its high water table, a sump pump is essential for most homes here. It collects groundwater from the weeping tile and moves it away from the foundation before it can build pressure and seep in. Many Aurora homes already have one because the conditions demand it.

  A battery backup is strongly worth it. The storms and rapid thaws that push the most water at your foundation are also the ones most likely to knock out power, and a sump pump with no power during a flood is just an empty pit.

• 8. Why do pipes freeze in Aurora homes, and which ones are most at risk?

  Aurora’s winters are cold enough that water sitting in poorly protected pipes can freeze, expand, and split the pipe. The ones most at risk run through unheated or poorly insulated spaces, garages, crawl spaces, attics, and exterior walls, plus outdoor hose bibs and any line near a draughty gap.

  Homes left at low heat while owners travel in winter are especially vulnerable, since an interior wall can quietly drop below freezing. Insulating those pipes and keeping a trickle of water moving on the coldest nights helps. If a pipe does freeze or burst, shut off your main water valve and call for help before the thaw floods the space.