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Commercial Repipe & Riser Replacement
Phased replacement of aging supply mains, risers and branches in multi-family and commercial buildings, planned around occupancy and the reserve study.

A building whose interior supply has failed in three places in two years has a system problem, not a leak problem. Galvanized risers in older buildings rust shut and through; copper mains from the 1970s and 80s pinhole along their length; polybutylene in 1980s and 90s multi-family cracks at every fitting. The honest answer is a repipe: the risers, mains and branches replaced, phased by floor, wing or stack so the building stays occupied and in water.
We plan it as a general contractor with licensed plumbers: survey the existing system and its materials, draw the new routing and sizing, sequence the phases so each shutoff affects one section for a known window, pull the permit, and run the new system in PEX-A or copper as the building and code require, with new isolation valves at every branch so the next problem can be isolated without shutting down a wing. Openings in finished ceilings and walls are planned, kept to the routing, and closed and patched as each phase completes.
Where the private main outside is the same vintage, which on a 1970s or 80s complex it usually is, we replace it in the same project with our own excavation equipment: one contractor, one system, no end-of-life pipe left anywhere between the master meter and the fixtures. The board or owner gets an as-built of the new system and the documentation the reserve study needs.
When a property needs this
- Repeated interior leaks on the same riser or main
- Galvanized, polybutylene or badly pinholed copper found during a repair
- A reserve study that flagged the domestic water system
- A renovation that opens ceilings and chases anyway
- Chronic pressure problems from restricted risers
How the job runs
- Survey and assess. Existing system traced, materials and failure history documented, and a written condition opinion for the board or owner.
- Design and phase. New routing, sizing and valve placement; a phasing plan by floor, wing or stack with shutoff windows.
- Permit and notice. Permit pulled, inspection scheduled, tenants notified of each phase.
- Run and tie in. New risers, mains and branches run and connected phase by phase, with new isolation valves, pressure tested.
- Close. Openings closed and patched as each phase completes.
- Document. As-built of the new system, with the exterior private main replaced in the same project where it's the same vintage.
What the owner or board receives
- Condition assessment of the existing system
- Phased replacement plan with scope and schedule
- New risers, mains and branches with isolation valves
- As-built drawing
- Documentation for the reserve study
What shapes the scope
- Number of risers, floors and units
- Construction and ceiling/chase access
- Occupancy and phasing constraints
- Whether the exterior main is replaced in the same project
- Permit and inspection requirements
Commercial work, as it actually looks






Commercial Repipe & Riser Replacement 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 Repipe & Riser Replacement: questions
Can the building stay occupied?
How is this priced for a reserve study?
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.