New Construction Plumbing Cost Estimator
Rough-in and finish plumbing pricing for new Florida builds — by fixture count, square footage, and slab or crawlspace condition.
Plumbing Cost Estimating for New Florida Builds
New construction plumbing is priced in two distinct stages — rough-in (before walls close) and finish (fixtures and trim) — and Florida's slab-on-grade construction changes the rough-in scope compared to crawlspace or basement construction common elsewhere.
Most Florida homes are built on a monolithic or stem-wall slab, meaning supply and drain lines are set before the pour — a sequencing detail that affects both cost and schedule risk if the plumbing scope isn't estimated accurately up front.
We prepare CSI Division 22-formatted plumbing estimates for new residential and light commercial construction — broken out by rough-in and finish stage so GCs and plumbing subs can price with confidence.
What Drives New Construction Plumbing Costs
Fixture Count
Bathroom and kitchen count is the single biggest driver of total plumbing cost.
Slab vs. Crawlspace
Slab-on-grade construction requires under-slab rough-in before the pour, a critical sequencing step.
Pipe Material
PEX, copper, and CPVC carry different material costs and labor installation time.
Fixture Grade
Builder-grade vs. upgraded fixtures shift the finish-stage budget significantly.
Water Heater Type
Tank vs. tankless water heater selection affects both rough-in and finish costs.
Permit & Inspection Stages
Rough-in and final inspections are required before slab pour and at project close-out.
New Construction Plumbing Cost by Stage
Pricing reflects typical Florida new-construction plumbing costs. Final quotes depend on fixture count, pipe material, and site conditions.
| Stage / Item | Typical Cost Range | Notes |
|---|---|---|
| Rough-In (per bathroom) | $1,800 – $3,500 | Supply & drain lines, under-slab or wall rough-in |
| Finish Plumbing (per bathroom) | $1,200 – $3,000 | Fixtures, trim, and connections |
| Whole-House Rough-In + Finish | $4.00 – $6.50 / sq ft | 3-bed / 2-bath home, builder-grade fixtures |
| Tankless Water Heater Upgrade | $2,500 – $5,500 | Installed, vs. $1,200–$2,200 for tank-style |
Get Your Plumbing Estimate in 4 Steps
Submit Your Plans
Send architectural plans and fixture schedule through the form below.
Receive a Flat-Rate Quote
We review scope and send a firm price and delivery date.
We Prepare Your Estimate
Division 22 line items broken out by rough-in and finish stage.
Get Your Bid-Ready Report
Delivered in PDF + Excel, ready for bid submission or budgeting.
Frequently Asked Questions
How much does new construction plumbing cost in Florida?
Whole-house rough-in and finish plumbing typically runs $4.00–$6.50 per square foot for a standard home with builder-grade fixtures.
What's the difference between rough-in and finish plumbing?
Rough-in is the supply and drain line installation completed before walls and slab close. Finish plumbing is fixture installation and trim-out completed near project close-out.
Does Florida's slab construction change plumbing costs?
Yes. Slab-on-grade construction requires under-slab rough-in before the concrete pour, which must be sequenced and inspected correctly to avoid costly rework.
Is PEX or copper piping more common in new Florida construction?
PEX is now the most common supply-line material in Florida new construction due to lower material cost and faster installation, though copper is still used in some applications.
How fast can I get a new construction plumbing estimate?
Most estimates are delivered within 48 hours of receiving your plans and fixture schedule.
Get a Flat-Rate New Construction Plumbing Estimate
48-hour delivery · CSI Division 22 format · PDF + Excel