Waterproofing
Basement Waterproofing
A wet basement is never a mystery. Water follows a path, and every path can be closed. We find yours, fix it at the source, and warranty the result for as long as you own the home.
Free assessment · Written quote before any work
What you get
- Free on-site assessment with a written diagnosis, not a sales pitch
- Interior and exterior systems. We recommend what your foundation needs, not what is easiest to sell
- Transferable lifetime warranty that stays with the house when you sell
- Fully insured, with our own crews on every job
Water always takes the easiest path
Every wet basement in Nova Scotia comes down to the same physics. Rain and snowmelt saturate the soil around your foundation. Saturated soil holds water against the wall, and that water pushes: roughly 60 pounds per square foot at eight feet of depth. That pressure is called hydrostatic pressure, and it does not need a large opening to get through. A hairline crack, a porous mortar joint, a tie rod hole, or the cold joint where your slab meets your wall is more than enough.
Our climate makes it worse than most. The freeze-thaw cycle across an Atlantic winter runs dozens of times a season, and each cycle widens whatever opening already exists. Clay-heavy till soils across much of the mainland drain slowly, so water sits against the foundation instead of moving away from it. Post-tropical storms drop more rain in six hours than the ground can absorb in two days.
None of that is unusual, and none of it is unfixable.
The three ways water gets in
Through the wall. Cracks, honeycombing in the pour, deteriorated parging on block, or the holes left by form ties. This is the most common source and often the cheapest to fix.
Through the floor–wall joint. The cold joint where the slab was poured against the footing is not a bond, it is a seam. When the water table rises, water comes up through it. You will see it as a wet line around the perimeter of the floor rather than a stain running down a wall.
Up through the slab. When the water table rises above the underside of your floor, water pushes up through the concrete itself. Efflorescence, that chalky white residue, is the giveaway.
Each of these has a different fix. A contractor who recommends the same system to every homeowner is selling a product, not diagnosing a problem.
What we install
Interior systems
An interior perimeter drainage system is the workhorse of basement waterproofing. We cut a channel in the slab along the inside of the footing, lay perforated pipe in clean washed stone, run a dimple board up the wall to direct wall seepage down into the pipe, and slope everything to a sealed sump basin. A quality pump with a check valve and a battery backup carries the water out and away from the house. Concrete goes back over top.
The result is that water is no longer fighting your foundation. It is being collected and removed before it can reach your floor.
Exterior systems
Exterior waterproofing is the more complete solution because it stops water before it ever contacts the concrete. We excavate to the footing, clean and repair the wall, apply a waterproofing membrane (not the spray-on damp-proofing that builders use, which is a moisture retarder rather than a waterproofer), install a dimple drainage board, lay new weeping tile in filter-fabric-wrapped stone at the footing, and backfill with free-draining material graded away from the house.
It costs more and it disturbs your yard. When access allows and the budget is there, it is the strongest thing you can do for a foundation.
Targeted repairs
Not every basement needs a full system. A single active crack in an otherwise sound poured wall is a two-hour polyurethane injection. A crawl space with a dirt floor needs encapsulation, not drainage. Downspouts discharging two feet from the foundation need extending before anyone excavates anything. We will always tell you when the small fix is the right fix.
Why the warranty matters
Our waterproofing work carries a transferable lifetime warranty. If water returns through an area we treated, we come back and make it right at no charge. The coverage stays with the property, so it passes to the next owner when you sell.
That is not a marketing line, it is an accountability structure. A company that has to return for free has every incentive to install the system correctly the first time.
Jobs like this
Basement Waterproofing in practice
Questions
About basement waterproofing
How much does basement waterproofing cost in Nova Scotia?
A single foundation crack injection typically runs a few hundred dollars. A full interior perimeter drainage system with a sump pump is usually several thousand, depending on linear footage and whether the slab needs to be cut. Exterior excavation and membrane is the most involved and prices by wall length and depth. We give a firm written quote after the on-site assessment, no charge, and no obligation.
Is interior or exterior waterproofing better?
Neither is universally better. Exterior work stops water before it touches the foundation and is the more complete fix, but it means excavating, which is expensive and sometimes impossible where decks, driveways, or property lines are in the way. Interior drainage manages water that has already reached the wall and relieves hydrostatic pressure under the slab. For many Nova Scotia homes the right answer is interior drainage plus targeted exterior repair. We will tell you which applies to yours.
How long does the work take?
Crack injections are usually done in a few hours. An interior perimeter system in an average basement takes two to four days. Exterior excavation depends on wall length and access, typically three to seven days. We give you a schedule before we start.
Will waterproofing my basement increase my home's value?
It protects it. A documented, warrantied waterproofing system removes a major objection during a home inspection, and because our warranty transfers to the new owner it is something your realtor can put in writing. Finishing a basement that still leaks is the expensive mistake, dry it first.
Do you work in winter?
Yes. Interior work (crack injection, weeping tile, sump pumps, crawl spaces) continues year-round because it happens inside a heated space. Exterior excavation is limited by frost, so we schedule it from spring through late fall. Winter is actually a good time to book interior work, because spring melt is when most basements flood and the calendar fills fast.
Further reading
More on basement waterproofing
Wet Basement Solutions in Halifax: Start With the Source
How to work out why a Halifax basement is wet (wall seepage, floor-joint water, or surface runoff), and which fix each one actually needs.
Sump Pumps in Nova Scotia: Sizing, Backup and Discharge
How sump pumps are sized, why the check valve matters more than horsepower, and why battery backup is not optional in an Atlantic storm province.
Does My Crawl Space Need Insulation?
Insulating a crawl space the old way makes it wetter. Why the vents were a mistake, why fibreglass fails down there, and what actually works in this climate.
Where we do this work
Basement Waterproofing across mainland Nova Scotia
Free assessment
Tell us what you’re seeing.
We’ll come out, diagnose it properly, and give you a written quote. No charge, and no pressure. If a cheaper fix will solve it, that’s what we’ll tell you.
(902) 555-0100