Plumbing Subcontractors

Plumbing scheduling consultant for plumbing subs

Plumbing is first in the dirt and one of the last out, with a long middle where the job can eat your time: underground gated by pours, risers by structure, top-out by inspections, fixtures by finishes. We build P6 schedules that carry every gate, and document it when someone else's delay stretches the time between them.

Email us for a 20 min call See how we schedule your scope
PSP certified Primavera P6 Underground to trim CPM Time impact analysis Contemporaneous record AACE RP 52R-06
We know your scope

The constraints that actually drive a plumbing schedule

One “plumbing rough-in” bar hides four crew flows and a testing chain. Each gate below goes into your CPM, because each can cost you time.

01Underground rough tied to the foundation and pour sequence. Often the first trade in the ground, exposed to weather, survey control and the excavation sequence.
02Sleeves and penetrations that must land before each slab placement, or a missed pour means core drilling and rework.
03Riser and stack sequence on high-rise and multifamily work, floor by floor behind the structure, setting the pace for everything in the walls.
04In-wall rough gated by framing and released area by area, with top-out inspections gating close-in on a per-floor or per-unit cadence you don't control.
05The testing chain. Rough and top-out tests, domestic water disinfection and flushing, backflow certification and gas tests, each a gate that can hold close-in or turnover.
06Fixture set and trim at the end, behind tile, counters and casework, where every upstream finish delay lands.
Where the schedule hurts you

First in, last out, and stretched in the middle

Plumbing is on the front end, the back end, and through a long middle that belongs to other trades. When the middle stretches, you carry supervision, general conditions and remobilizations through months the bid never priced, and nobody sends a change order.

+Extended duration. Added months on site between rough and trim, with supervision and overhead carried the whole way
+Units and floors released out of the sequence you priced, breaking crew flow and forcing remobilization after remobilization
+Inspection and close-in cadences that hold your top-outs while the schedule still shows your bars on plan
+Trim compressed behind late finishes, with fixture crews stacked into whatever window is left before turnover

How compression and stacking hit your crews and margin: When schedules get compressed → More on protecting a sub's time: Subcontractor schedule protection →

How we protect you

A scheduler in your corner who has built this scope before

01

A baseline built to your means and methods

Your bid logic, stack and unit sequence, testing chain and crew flow, on record before anyone edits the plan you priced.

02

Monthly updates that keep the record

Narratives that log held pours, out-of-sequence releases and inspection holds as they happen, not reconstructed later.

03

Logic and float audits on the GC schedule

We check for compressed durations, flipped ties and float taken from your scope, and show where your time went.

04

Time impact analysis on changes and delay

TIA per AACE RP 52R-06 on change orders, held areas and extended duration. The time request rests on the schedule, and cost is documented separately.

Representative projects

Work we have scheduled

Names withheld, references available on request.

Mission Critical

Mass burn waste-to-energy facility, design-build

Full plant scope: boiler, turbine generator, air cooled condenser, ash handling, and major mechanical, piping and electrical packages. Baseline and updates on the resource and quantity loaded P6 schedule.

Industrial

Biosolids-to-fertilizer facility, EPC

Biosolids receiving and dryer system, granulation plant, and chemical and ammonia storage, with heavy mechanical, piping and electrical scopes. Baseline and updates, with subcontractor schedules integrated into the CPM master.

Plumbing FAQ

Questions we get from plumbing subs

Our scope has a long gap between rough-in and fixture set. How does the schedule handle that?
That gap is where extended duration hides. We model underground, riser, in-wall and trim as separate crew flows with explicit gates, so when the middle stretches the schedule shows how much longer you're on site than the bid carried, and why.
The GC keeps releasing units out of sequence. What does that do to us?
They break the stack and unit flow you priced and force remobilization and split crews. Every update tracks planned against actual release sequence, so the change is documented as it happens, alongside crew and production records.
Can you schedule med gas scope on healthcare work?
Yes. Med gas gets its own chain (rough, brazing, pressure testing, third-party certification) with required tests ahead of close-in and final verification and certification where required. Healthcare inspection cadences and infection control constraints go in the logic, not someone's head.
What protects us on underground work when the site runs late?
A baseline that carries the foundation and pour ties, and updates that record every held pour and flooded trench, separate a bad winter from your own performance.

On site months longer than you bid?

Send the GC’s latest update and your bid schedule. On a 20 minute call we'll hear how the job got stretched and tell you which records a duration review needs and what it costs.

Email us for a 20 min call Email us your schedule Call 407-506-5247
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