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Commercial Interior Leak Detection
Pinpointing supply-line leaks inside occupied commercial and multi-family buildings: in chases, ceilings, mechanical rooms and under floors, with the building in use.
Inside a commercial or multi-family building the water supply is a network: a riser or trunk from the point of entry, horizontal mains in ceilings or crawlspaces, branches into each unit or tenant space, and recirculating hot water loops on larger buildings. A leak anywhere in it drips into a ceiling tile, soaks a chase, runs along a beam and shows up two rooms away, or goes into a slab subgrade and never shows at all. The bill climbs, a tenant reports a stain, and the question is where to open the ceiling.
We answer that with instruments, in an occupied building, without closing it. The loss is confirmed and quantified at the meter. Risers and branches are isolated where valves exist and the gauges watched. Acoustic sensors listen along the mains; a thermal camera reads a hot-loop leak through drywall or a slab; moisture meters trace the wet zone back to its source. The mark goes on one ceiling tile, one wall or one square of floor, with a note on the pipe and the failure expected behind it, and the opening happens after hours if that's what the tenant needs.
Our licensed plumbers do the repair at the marked spot, and as a registered general contractor, bonded and insured, we handle the opening, the pipe and the patch as one scope with one report for the owner, the manager and the insurer. For buildings with a chronic interior loss, the same overnight investigation we run on private mains applies inside: quantify, attribute to a riser or a branch, locate, fix, document.
When a property needs this
- A ceiling stain or a wet chase with no fixture directly above
- A water bill out of line with occupancy and no exterior wet spot
- A hot water recirculation loop losing pressure or running the boiler
- A musty mechanical room, utility closet or lower level
- A tenant improvement that uncovered old supply lines
- Repeated small leaks in different places on an older building
How the job runs
- Confirm and quantify. Meter test with the building's fixtures closed and the exterior line isolated, to attribute the loss to the interior system and put a number on it.
- Isolate. Risers, branches and the hot loop isolated where valves exist, with gauges on each section.
- Trace and listen. Mains traced through ceilings, chases and crawlspaces; acoustic sensors placed along them to find the peak.
- Thermal and moisture. Thermal imaging on hot-side leaks and slabs; moisture meters to map the wet zone back to its source.
- Mark and schedule. One location marked with the expected pipe and failure, and the opening scheduled around the tenant.
- Repair and document. Licensed plumbers repair at the mark, the opening is closed, and the owner gets a written report with photos.
What the owner or board receives
- Confirmed interior loss with a gallons-per-day figure
- Attribution to a riser, branch or loop
- Marked leak location with expected pipe and failure
- Written report with photos
- Repair at the marked spot by licensed plumbers
What shapes the scope
- Building size and number of risers and branches
- Whether isolation valves exist and work
- Ceiling and chase access
- Tenant hours and after-hours requirements
- Pipe material and age
Commercial work, as it actually looks
Commercial Interior Leak Detection across the peninsula
Bremerton
The shipyard city's older galvanized lines fail quietly and show up as a wet lawn or a water bill nobody can explain.
Silverdale
The 1980s and 90s subdivision boom around the mall left thousands of polybutylene service lines that are now failing on schedule.
Port Orchard
The county seat's hillside lots and clay soils turn small leaks into slope problems, and long rural runs hide breaks for months.
Poulsbo
Little Norway's mix of century-old downtown lines and fast-draining bay-side outwash means leaks hide well and fail suddenly.
Bainbridge Island
Clay soils and 500-foot driveways make island leaks slow to surface and expensive to guess at, which is why we locate before we dig.
Kingston
Ferry-town acreage with long wooded service runs where a leak can hide under hardpan for an entire winter.
Keyport
A century-old Navy village with short lots, old lines and shoreline clay that keeps everything damp.
Tracyton
Bluff-side lots over Dyes Inlet where seeps and springs make it easy to mistake groundwater for a leak and vice versa.
Hansville
Beach cabins at the tip of the peninsula with shallow lines, high water tables and a long drive for anyone who isn't already in Kitsap.
Indianola
A century-old summer colony where shared lines, easements and bluff clay make leaks a neighborhood puzzle.
Suquamish
Two utilities, mixed-era housing and Agate Pass shoreline clay in the heart of the Port Madison reservation.
Manchester
Rich Passage waterfront lots where the service line runs downhill and every leak finds the beach.
Enetai
East Bremerton's bluff-side neighborhood where mid-century copper lines fail on slopes that drain toward the bay.
Lofall
Rural acreage between Poulsbo and the Hood Canal Bridge where well lines run hundreds of feet through hardpan.
Olalla
Well country at the south end of Kitsap where a leaking line shows up as a pump that won't shut off.
Seabeck
Hood Canal forest parcels where boulders, hardpan and long well lines make guessing at a leak an expensive mistake.
East Port Orchard
South Kitsap's 1970s and 80s subdivisions where copper and poly lines are reaching the end of their run.
Rollingbay
The northeast corner of Bainbridge where clay slopes, long drives and small community systems keep leaks hidden for seasons.
Port Townsend
A Victorian seaport where 1890s service lines sit under historic sidewalks and the gravity pipeline from the Quilcene delivers the water.
Commercial Interior Leak Detection: questions
Can tenants stay open during the locate?
Do you handle the ceiling and wall repair?
Something underground isn't right?
We answer 24 hours a day. We locate before we dig, and we handle the whole job with our own crew and equipment.