New construction plumbing services execute underground slab rough-in with Charlotte Pipe SDR 35 PVC sewer laterals, route Uponor AquaPEX or Type L copper supply manifolds through framed walls before drywall closes, and pass drain-waste-vent inspections at each phase without delaying the schedule. Bonded Plumbworks’ licensed plumbers install TracPipe CounterStrike CSST gas piping, Watts thermal expansion tanks, and Oatey fire stop collars at every floor penetration — meeting applicable state building codes from slab to final trim.
What Is New Construction Plumbing
New construction plumbing encompasses the complete installation of a residential plumbing system in a building that does not have existing plumbing infrastructure. The process occurs in distinct phases aligned with the general construction schedule: underground rough-in before the slab is poured, above-ground rough-in after framing, and trim-out (finish plumbing) after drywall, paint, and flooring are complete. New construction plumbing must be designed according to the applicable state building codes Plumbing section, the International Plumbing Code (IPC), and NFPA 54 for gas piping. Greywater separation routes sink and laundry drains independently from toilet waste, allowing new construction plumbing systems to support future greywater irrigation without slab demolition. All work requires plumbing permits and multiple inspections by the local building department before occupancy.
Signs You Need New Construction Plumbing
- You are building a new custom home and need a licensed plumber to install the complete plumbing system
- Your general contractor requires a plumbing subcontractor for a residential new build
- You are constructing an addition that requires new plumbing from the ground up, including slab work
- Your project requires plumbing design that coordinates with the architect’s plans and the structural engineer’s slab layout, including hot water recirculation loop rough-in for large homes where supply runs exceed 40 feet
- The building department requires a licensed plumbing contractor to pull the plumbing permit
- You are building a custom home with complex plumbing requirements such as multiple water heaters, recirculation systems, or whole-house water treatment
- Your new build includes outdoor plumbing for a pool, outdoor kitchen, or irrigation system
- You need a plumber experienced with local permit processes and inspection schedules
Our New Construction Plumbing Process
Step 1 — Plan Review and Plumbing Design
Our master plumber reviews the architectural plans, structural drawings, and mechanical layout to design the complete plumbing system. We produce a plumbing riser diagram showing all supply lines, drain-waste-vent routing, fixture locations, and gas piping runs. The design specifies pipe sizes calculated per the International Plumbing Code fixture unit method, vent configurations, water heater placement, and hose bibb locations. We coordinate with the HVAC contractor for condensate drain routing and the pool contractor for pool plumbing tie-ins. New construction plumbing inspection gives you a live view of the problem before any work starts. You review the findings and approve the quote before any repair begins.
Step 2 — Permit Application and Approval
Bonded Plumbworks prepares and submits the plumbing permit application to the local building department, including the plumbing plan, riser diagram, and fixture schedule. We hold the required state-certified plumbing contractor licenses (CFC) to pull permits in all local jurisdictions. Permit review typically takes five to ten business days. We track the permit process and notify the general contractor when approval is received.
Step 3 — Underground Rough-In (Pre-Slab)
Before the concrete slab is poured, we install all below-grade plumbing including the building sewer connection, main drain lines, shower and tub drains, toilet flanges, and supply stubs. Underground piping uses Schedule 40 PVC for DWV and Type L copper or PEX-B for supply lines, installed in trenches with proper bedding and slope (minimum quarter-inch per foot for drains). We set all drain pipes to exact locations per the approved floor plan and verify elevation with a laser level. The underground system is water-tested at 5 feet of head pressure and inspected by the building inspector before slab pour.
Step 4 — Above-Ground Rough-In (Post-Frame)
After framing is complete and before insulation and drywall, we install all above-grade plumbing. This includes hot and cold water supply lines (PEX-B manifold system or conventional trunk-and-branch copper/PEX), vent stacks through the roof, individual fixture supply and drain connections, washing machine outlet boxes, water heater connections, gas piping to appliances, and hose bibb penetrations. We use Uponor or Viega PEX manifold systems for supply distribution, providing individual shut-off control for each fixture. IoT conduit for smart fixtures is roughed in at toilet and faucet locations during this phase, providing power and data pathways for touchless or sensor-equipped upgrades without future drywall removal. Supply lines are pressure-tested at 80 PSI and held for 30 minutes. DWV is air-tested at 5 PSI and held for 15 minutes. Plumbing pressure testing verifies every joint and connection in a new construction plumbing system before walls are closed, catching failures that cost a few dollars to fix now but thousands after drywall is installed.
Step 5 — Gas Piping Installation
If the home uses natural gas or propane, we install the complete gas distribution system from the meter to each appliance. Gas piping uses Schedule 40 black iron pipe with threaded fittings or approved CSST (corrugated stainless steel tubing) such as TracPipe CounterStrike. Pipe sizing is calculated per NFPA 54 using the longest-length method to ensure adequate BTU delivery to all appliances simultaneously. The gas system is pressure-tested at 3 PSI for 10 minutes with a manometer and inspected before concealment. The meter set connects the utility supply to the home’s internal gas distribution, and new construction plumbing projects coordinate meter set placement with the gas utility before the slab is poured.
Step 6 — Rough-In Inspection Coordination
We schedule the rough-in plumbing inspection with the local building department at the appropriate point in the construction timeline. Our plumber is present during the inspection to address any questions and demonstrate test results. The inspector verifies pipe material, sizing, slope, support spacing, vent terminations, pressure test results, and code compliance. Passing the rough-in inspection allows the builder to proceed with insulation and drywall.
Step 7 — Trim-Out and Fixture Installation
After drywall, paint, tile, and countertops are complete, we return for the finish phase. Trim-out includes setting all toilets, installing faucets and drain assemblies, connecting dishwashers and garbage disposals, mounting shower valves and trim kits, installing water heaters, connecting washing machine valves, and setting all accessories. Every fixture is tested for proper operation, correct hot and cold orientation, adequate pressure, and leak-free connections.
Step 8 — Final Inspection and Certificate of Occupancy
We schedule the final plumbing inspection with the building department. The inspector verifies that all fixtures are installed and operational, the water heater has proper venting and safety devices (T&P valve, expansion tank, drain pan), gas appliances are connected with approved connectors, and the system operates as designed. Passing the final plumbing inspection is required before the Certificate of Occupancy is issued. We provide the homeowner and builder with as-built documentation showing all supply, drain, and gas line routing for future reference. Digital as-built scanning captures precise pipe locations inside walls and beneath slabs before they are sealed, giving future plumbers an accurate reference map for new construction plumbing modifications or repairs.
Equipment and Materials
Bonded Plumbworks installs premium plumbing materials in new construction for long-term reliability. Water supply systems use Uponor AquaPEX with ProPEX expansion fittings and manifold distribution, or Type L copper with Viega ProPress connections. PPR pipe (heat fusion) joins through a permanent molecular bond that eliminates mechanical fitting failure, making it an increasingly specified option for new construction plumbing supply lines in concealed wall cavities. DWV systems use Charlotte Pipe Schedule 40 PVC with solvent-welded joints. Underground piping uses Charlotte Pipe SDR 35 PVC for building sewers and Charlotte Pipe Schedule 40 for building drains. Gas piping uses Mueller Schedule 40 black iron with Ward malleable iron fittings, or TracPipe CounterStrike CSST. Water heaters include Rheem, A.O. Smith, and Bradford White tank and tankless models. Fixture brands include TOTO, Kohler, Moen, Delta, and American Standard. All installations include Sioux Chief pipe supports, Oatey fire stop collars at penetrations, and Watts thermal expansion tanks on closed water systems.
Why Choose Bonded Plumbworks for New Construction Plumbing
Bonded Plumbworks has installed plumbing systems in new residential construction since 2006. Our state-certified plumbing contractor licenses allow us to pull permits and perform work in every municipality in the county. We are members of the Plumbing-Heating-Cooling Contractors Association (PHCC), maintain an A+ rating with the Better Business Bureau (BBB), and carry full liability and workers’ compensation insurance. Our master plumber designs every system for code compliance, efficiency, and long-term serviceability. We coordinate closely with general contractors, keeping the plumbing schedule aligned with framing, mechanical, and finish timelines to prevent delays. Every new construction plumbing project includes a written warranty and as-built documentation.
New Construction Plumbing Pricing
New construction plumbing costs range from $8,000 for a standard single-family home to $20,000 or more for custom builds with complex layouts. Common price ranges include:
- Standard home (3 bed/2 bath): $8,000 – $12,000
- Larger home (4+ bed/3+ bath): $12,000 – $18,000
- Custom home with gas, recirculation, treatment: $15,000 – $20,000+
- Outdoor plumbing add-on (pool, kitchen): $2,000 – $5,000
Every new construction plumbing bid is based on architectural plan review, so you know the full scope before breaking ground. Call Bonded Plumbworks at (855) 557-9600 for a detailed proposal.
Frequently Asked Questions
How much does new construction plumbing cost? New construction plumbing costs for a standard single-family home typically range from $8,000 to $20,000 depending on home size, number of bathrooms, fixture selections, and whether the home includes gas piping, water treatment, or recirculation systems. Custom homes with high-end fixtures and complex layouts fall at the upper end. Bonded Plumbworks provides a detailed bid based on the architectural plans.
Where can I find a new construction plumber near me? Bonded Plumbworks provides new construction plumbing services across all 39 cities. We hold the state-certified plumbing contractor licenses required to pull permits in every jurisdiction. Call (855) 557-9600 to discuss your new build project.
How long does new construction plumbing take? New construction plumbing occurs in three phases spread across the building timeline. Underground rough-in takes one to three days before the slab pour. Above-ground rough-in takes two to five days after framing. Trim-out and fixture installation takes two to four days after finishes are complete. Total plumbing time for a standard home is one to two weeks of active work spread over several months of construction.
What plumbing inspections are required for new construction? The local building department requires at minimum three plumbing inspections: underground rough-in (before slab pour), above-ground rough-in (before drywall), and final inspection (before Certificate of Occupancy). Additional inspections may be required for gas piping, sewer connection, and water service. Bonded Plumbworks coordinates all inspections and is present for each one.
Should I use PEX or copper for new construction? Both PEX and copper are approved by the applicable state building codes for residential water supply. PEX-B offers lower material cost, faster installation, freeze resistance, and flexibility around obstacles. Copper provides proven longevity, higher resale perception, and UV resistance for exposed applications. Bonded Plumbworks installs both and recommends based on your project’s specific requirements, budget, and long-term goals. Many new construction projects use a hybrid approach with copper for exposed lines and PEX for in-wall distribution.
Does new construction plumbing come with a guarantee? New construction plumbing from Bonded Plumbworks includes a written warranty on all materials and labor. Every system is pressure-tested at each phase and passes building department inspections before proceeding. If any new construction plumbing component we installed fails within the warranty period, we return and correct it at no additional cost.
Schedule New Construction Plumbing Today
Build it right from the start with Bonded Plumbworks. Call (855) 557-9600 to discuss plumbing design and installation for your new home construction project. We work with builders, general contractors, and homeowners. Every new construction plumbing service includes a 90-day guarantee on new construction plumbing work, covering parts and labor.
Bonded Plumbworks’ new construction plumbing services are available across Florida — see all service locations.