Telltale signs: basement flood prevention
Some households come to us after a wet carpet and a ruined box of photographs. Others call because a neighbour flooded during the last summer downpour and they would rather not be next. Either way, the questions are the same: where could water get in, and what would stop it?
- A previous backup through the floor drain or basement toilet
- Damp walls or seepage after heavy rain
- Downspouts that empty close to the foundation
- Plans to finish or renovate the basement
What we bring
- Submersible pump, check valve and union
- Pit liner, discharge pipe and ABS fittings
- Bucket and hose for the fill test
Tested before we leave
- Pit filled until the float trips the pump
- Check valve confirmed shut on the reverse
- Discharge traced to the outside outlet
On the job: what we open, clear and test
We start with a walk-through. Inside, we note every low fixture, the floor drain, the main cleanout and any existing pump pit. Outside, we look at grading, downspouts and window wells. Where sewer backup is the main risk, a backwater valve cut into the main drain tends to be the centrepiece. Where groundwater is the problem, a sump pump with a proper discharge route takes priority. Many homes benefit from both.
We then explain the options in order of effect, with what each involves and how it would be maintained. Nothing proceeds until you have chosen. Some households do the work in stages, starting with the item that addresses their most likely risk and adding the rest over a season or two; that is a perfectly reasonable approach, and we will help you decide the order.
What can change the job
The age of the drain, whether foundation weeping tiles connect to the sanitary sewer, and how deep the main line runs all affect what is sensible. A finished basement adds care around flooring. Permits are needed for some of this work in Toronto, and we will tell you which pieces apply.
| Layer | What it guards against |
|---|---|
| Backwater valve | Municipal sewer water pushing back into the house |
| Sump pump | Groundwater collected by foundation drainage |
| Downspout disconnection | Roof water overloading the sewer and soaking the foundation |
| Floor drain repair | A cracked or open trap letting water up |
Etobicoke homes and this job
Several Etobicoke neighbourhoods have older combined or partially separated sewers, and intense summer storms have flooded basements in areas from Richview to the lakeshore. The City of Toronto has run a subsidy programme for backwater valves, sump pumps and pipe severance; terms change, so we suggest checking the current rules before work begins. Sump pits in this area often run frequently in spring, so a pump with a battery backup is worth considering.
Before you call
Gather anything you know about past water events: dates, which drain overflowed, and whether it rained. Photographs help. If you have a home inspection report or an old survey showing the sewer connection, keep it handy as well. Then telephone (365) 816-2905 and we will book an assessment at a time that suits you.