Strata · Commercial · Institutional buildings
Water in the elevator pit. Find the source, not just the puddle.
The pit is the building's lowest point — everything the structure lets through ends up there, and “pump it and hope” is how buildings spend years paying for the same problem. We determine the source class — groundwater infiltration, piping leakage, or drainage failure — with evidence that survives the repair decision, the elevator contractor's file, and the insurance conversation.
Free phone consult · No pressure · Mon–Sat 8am–6pm PT
Why pits get wet
- Groundwater infiltrating slab joints and below-grade walls
- Domestic, storm, or hydronic piping leaking nearby
- Perimeter drainage failed or overwhelmed, ponding against the foundation
- Surface and parkade wash-down water finding the hoistway
- Sump systems undersized, failed, or discharging where they shouldn't
- Membrane and waterproofing breaches at the pit walls
How the investigation runs
- 1
Coordinate access
Investigation is scheduled with your elevator maintenance contractor's safety procedures — lockout where pit work is needed, with most diagnostics designed to happen outside the pit.
- 2
Characterise the water
Chlorine testing, temperature, inflow pattern versus weather and building usage — the water itself usually testifies to its origin before any wall does.
- 3
Test the suspects
Piping isolation on nearby lines, thermal and moisture mapping of pit walls and adjacent assemblies, drainage assessment around the foundation — each source class proven or cleared.
- 4
Source report
The documented answer: source class, entry path, evidence, and the right next trade — waterproofing, drainage, plumbing, or sump — so the building fixes the cause once.
Building managers ask
Why does water keep appearing in our elevator pit?
Pits are the lowest point in the building, so they collect whatever the structure lets through: groundwater infiltrating below-grade walls and slab joints, leaking domestic or storm piping routed nearby, failed perimeter drainage backing water against the foundation, or surface water finding a path down the hoistway. Pumping it out treats the symptom; identifying which source you actually have is what ends the cycle — and the answer changes the fix completely.
How do you tell groundwater from a piping leak in the pit?
Evidence, not opinion: treated water tests positive for chlorine, groundwater doesn't; piping leaks track system pressure and usage patterns while groundwater follows rain and the seasons; thermal and moisture mapping show the entry path on walls and slab; and isolation testing on suspect lines proves or clears them. The deliverable states the source class with the evidence attached — which is exactly what the repair decision (and any insurance conversation) needs.
Is it safe to investigate an active elevator pit?
Only done properly. Pit access happens under the safety framework elevators require — coordinated with your elevator maintenance contractor, equipment locked out per their procedures, and our scope kept to the investigation itself. Much of the diagnostic work (piping isolation, drainage assessment, exterior testing) happens outside the pit entirely; in-pit time is minimized and controlled.
Our pit sump runs constantly. Is that normal?
A sump that cycles occasionally after heavy rain is doing its job; one that runs steadily year-round is metering a problem — chronic groundwater pressure, a failed drainage system, or a quiet piping leak feeding it continuously. Constant pumping also masks the volume involved. The investigation quantifies and sources the inflow, which converts 'the pump handles it' into an actual decision about drainage repair, waterproofing, or a pipe fix.
Parkade leak detection·Sump system evaluation·Foundation leak detection·Strata services
Stop pumping the mystery. Solve it.
Free phone consult — pit history, sump behaviour, and the right investigation scope in five minutes.