Commercial & Office Slab Leak Repair in Phoenix & Scottsdale, priced before we start.
Commercial slab leaks present the same way residential ones do — a bill that stepped up, a warm patch, the sound of water with everything closed — but the response has to be entirely different. A homeowner can live around an open trench for two days. A tenant floor cannot.
So the work is planned backwards from the constraint. Locate precisely, before opening anything. Establish whether a reroute avoids the occupied area altogether. Stage the work into windows that fit around trading and tenancy rather than around our schedule.
In multi-tenant buildings there is a second question that matters as much as the plumbing: whose leak is it. We document the location, the line, and the demarcation clearly enough that the answer does not become a dispute between a landlord and a tenant three weeks later.
What points to a commercial slab leak
Consumption up with no operational change
Commercial meters make this easier to spot than residential ones. A step change with no change in occupancy or process is a loss.
Warm flooring in a defined area
Hot-line leaks under slab. In a large floor plate the affected area is often small and easily walked past.
Efflorescence or lifting at floor covering edges
Moisture tracking through the slab and depositing salts. Common at the edges of vinyl and under carpet tile.
Pressure loss on one zone only
Particularly telling in buildings where floors or suites are separately valved.
How we work in occupied buildings
- 01
Isolate by zone before anything else
Narrowing the leak to a riser or a suite means the diagnostic work happens in one area rather than across a floor plate.
- 02
Acoustic and thermal location
Under concrete, in ceiling voids, above tenant space. Precision here decides how much of your building gets opened.
- 03
Reroute where it avoids the occupied area
Abandoning a failed run and repiping overhead is frequently faster, less disruptive and cheaper once floor restoration is priced in.
- 04
Staged into your windows
Nights, weekends, or a floor at a time. Written scope and sequence up front so building management can notify tenants accurately.
What it typically runs
$1,800 – $12,000
A single accessible spot repair sits at the low end. Multi-zone reroutes in occupied buildings, or work requiring night crews, sit high. Detection is quoted separately and credited against the repair.
Financing is available on larger jobsIn a commercial building the plumbing is rarely the expensive part. The interruption is.
Slab Leak Repair: questions we get asked
Straight answers, the same ones we give on the phone.
