BUILDERS · NEW CONSTRUCTION ROUGH-IN

Rough-in that doesn't hold up your build.

Caspian rough-ins custom homes and multi-unit builds across the GTA — plumbing and mechanical to the consultant's drawings, delivered on the date we committed so drywall doesn't sit waiting on us. Every install is OBC-compliant and passes inspection the first time. One project manager per site from kickoff through commissioning, with daily logs and weekly progress updates so the builder always knows where rough-in stands.

Tell us about your build.

5.0 142 verified Google reviews
1-year warranty on all workmanship. Included with every project · Provided in writing · No fine print
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WHAT WE ROUGH-IN

The full mechanical rough-in scope.

Plumbing, mechanical, hydronic, snowmelt, controls pre-wire — Caspian handles the entire rough-in package under one trade, so there's one schedule, one PM, and one signature on the inspection card.

Plumbing rough-in

Hot and cold supply runs, complete DWV (drain-waste-vent) stacks, fixture branches, and venting to OBC. Sleeved through walls and floors before pour, pressure-tested before drywall.

Mechanical rough-in

Boiler and furnace set, ductwork run to consultant drawings, refrigerant line-set for split and VRF systems, condensate and combustion venting. Equipment staged for trim-out without rework.

Hydronic rough-in

In-slab PEX layout for radiant floors, manifold locations coordinated with framing, zone valves and circulator pre-wire, pressure-tested before concrete and signed off in writing.

Snowmelt rough-in

Driveways, walkways, ramps, and entry pads — PEX layout to engineered spacing, manifold pits, and supply runs to the mechanical room. We coordinate with concrete so the schedule holds.

Permit-ready drawings + as-builts

Permit submission package on day one. Red-line as-builts maintained through rough-in and handed over with the commissioning binder — clean for the owner, clean for the next trade.

BMS + controls pre-wiring

Low-voltage rough-in for thermostats, zone controllers, pumps, valves, and BMS head-end. Pulled with the mechanical so the controls contractor can land terminals without opening walls back up.

WHAT SEPARATES US FROM A TYPICAL SUB

Predictable for the builder.

Most rough-in problems aren't about pipe — they're about communication, schedule discipline, and paperwork. Caspian is engineered for the four things builders tell us they don't get from a typical sub.

01 — Schedule discipline

We hit the milestone, or we tell you two weeks out.

We hit the rough-in milestone on the day we said we would, or we tell you a minimum of two weeks ahead with a written recovery plan. No drywall ever sits waiting on a vague "next week" — the GC gets the heads-up early enough to re-sequence the other trades.

02 — First-time inspection pass

100% pass rate, five years documented.

Our first-time inspection pass rate is 100% on the work we've documented over the last five years. We don't reschedule inspections, we don't burn a Friday on a re-call, and your drywall crew starts when they said they would.

03 — One PM per site

Same person from kickoff to commissioning.

One project manager owns your site from the pre-construction walk through commissioning. No "different guy each visit" surprises, no re-explaining the riser layout to a new face, no information lost between dispatch and the truck.

04 — Daily logs + weekly photos

You always know what's done, next, and blocking.

Daily logs of crew, scope, and hours filed end of day. Weekly progress photos and a one-page summary every Friday — what's done, what's next week, what's blocking. The GC's site report writes itself, and the owner sees real progress.

HOW WE WORK WITH BUILDERS

From site walk to commissioning.

A four-step engagement built for GCs and developers who need the mechanical trade to stay out of the critical-path conversation.

01 / PRE-CONSTRUCTION

Pre-construction review

We walk the site with the GC, review the consultant drawings, and flag conflicts — beam clashes, riser routing, fixture coordination — before they're permanent and expensive.

02 / EXECUTION

Rough-in execution

Plumbing and mechanical roughed to the consultant drawings. Anything ambiguous comes back as a logged RFI — no field guesses, no rework when the consultant sees it.

03 / INSPECTION

Inspection

We book the inspector, meet them on site, and walk the work. The GC doesn't field that call or shuffle the schedule. Pass the first time, every time.

04 / TRIM + COMMISSIONING

Trim-out + commissioning

Once drywall and finishes are done we return for the final fixture set, equipment startup, and system commissioning — handed over with as-builts, O&M manuals, and warranty.

Where we work Toronto North York Etobicoke Mississauga Oakville & GTA West

GET A QUOTE

Got plans we should bid on?

Send us the architectural and mechanical drawings plus the rough-in milestone date. We respond inside 24 hours — usually the same day — with a fixed-price proposal and a written schedule commitment.

Schedule discipline — milestone hit or 2-week heads-up with recovery plan
100% first-time inspection pass rate — five years documented
One PM per site — kickoff through commissioning
OBC-compliant — work passes inspection the first time
$5M insured · WSIB compliant · fully licensed mechanical trades

Tell us about your build.

5.0 142 verified Google reviews
OFFICE 416 889 2629 24/7 416 889 2629