REMODELING PLUMBING

Plan the Plumbing Before the Walls and Finishes Go In

Bathroom, kitchen, and whole-home remodels are easier to coordinate when fixture specifications, plumbing locations, access requirements, and scope boundaries are defined before walls, floors, cabinets, tile, and countertops conceal the work.

BEFORE FINISHES

Plumbing decisions become more expensive and disruptive after the room is finished

A fixture may look simple from the finished side of the wall, but its final location can affect drainage, venting, water piping, valves, supports, access, cabinetry, framing, tile, flooring, and the work of several other trades.

Fixture Specifications

Different fixtures can require different rough-in dimensions, connection locations, valves, drains, supports, clearances, and access. Final model information should be reviewed before the plumbing position is treated as complete.

Drainage and Venting

Moving a sink, toilet, tub, shower, or appliance may require more than extending a nearby pipe. Drain size, slope, venting, structural conditions, and the route back to the existing system affect what is practical.

Water and Gas Distribution

New fixture demand, appliance changes, specialty shower systems, gas appliances, and longer piping routes may affect pipe sizing, pressure, capacity, shutoffs, and the approved plumbing scope.

Access and Sequence

Plumbing work may need to occur before framing closes, cabinets arrive, countertops are measured, waterproofing begins, tile is installed, or finished surfaces limit access.

The earlier the plumbing information is confirmed, the easier it is to coordinate the work without reopening completed areas.

REMODELING SERVICES

Start with the part of the property that is changing

Bathroom Remodel Plumbing

Plan toilets, vanities, tubs, showers, drains, valves, specialty fixtures, water piping, and rough-in dimensions before waterproofing and finished surfaces limit access.

EXPLORE BATHROOM REMODEL PLUMBING

Kitchen Remodel Plumbing

Coordinate sinks, islands, faucets, disposers, dishwashers, refrigerators, gas appliances, drains, water lines, cabinets, and appliance specifications before final installation.

EXPLORE KITCHEN REMODEL PLUMBING

Whole-Home Remodel Plumbing

Organize room-by-room plumbing changes, aging piping, repiping opportunities, additions, hot-water demand, gas needs, and sequencing across a larger project.

EXPLORE WHOLE-HOME REMODEL PLUMBING

CLEAR RESPONSIBILITIES

A remodeling project works better when every trade’s responsibility is defined

NexGen defines and completes the approved plumbing scope. The owner, remodeler, general contractor, designer, supplier, and other trades remain responsible for their own decisions, materials, access, schedules, and work unless those responsibilities are specifically included in writing.

NexGen Plumbing Scope

  • Review available plans and fixture information
  • Evaluate accessible existing plumbing conditions
  • Define approved plumbing rough-in work
  • Complete approved water, drain, vent, and gas piping work
  • Install approved plumbing connections and fixtures
  • Test accessible completed plumbing work as conditions allow
  • Document exclusions, limitations, and required follow-up

Owner, Remodeler, or General Contractor

  • Confirm the final room layout
  • Provide approved fixture and appliance selections
  • Coordinate access and project sequencing
  • Identify who can approve scope changes
  • Coordinate demolition, framing, cabinetry, tile, electrical, HVAC, and finish work
  • Maintain a safe and accessible work area
  • Communicate schedule changes that affect plumbing

Suppliers and Other Trades

  • Provide accurate product specifications
  • Confirm cabinet and countertop dimensions
  • Complete electrical and HVAC requirements
  • Complete framing, structural, waterproofing, roofing, and finish work
  • Prepare finished openings and mounting surfaces
  • Coordinate manufacturer-specific requirements outside the plumbing scope

NexGen does not assume responsibility for design, dimensions, product compatibility, or work assigned to another party unless that responsibility is specifically included in the approved scope.

PROJECT INPUTS

The plumbing estimate is only as clear as the information available

WHAT MAY BE HIDDEN

A remodel can expose plumbing conditions that were not visible during the estimate

Walls, floors, ceilings, cabinets, and fixtures can conceal piping routes, damaged materials, improper previous work, structural conflicts, venting conditions, and access limitations.

What Can Be Reviewed Before Demolition

  • Visible fixtures and connection points
  • Accessible piping
  • Available crawlspace, attic, basement, or mechanical access
  • Existing shutoffs
  • Equipment labels
  • Known repair history
  • Available plans or previous documentation

What May Remain Unknown

  • Concealed piping routes
  • Conditions behind cabinets or finished walls
  • Framing conflicts
  • Improper prior alterations
  • Hidden corrosion or damage
  • Buried or inaccessible fittings
  • Actual vent configuration
  • Conditions below slabs or finished floors

How New Conditions Are Handled

  • Document the discovered condition
  • Explain how it affects the approved scope
  • Identify available options
  • Separate required repair from optional improvement
  • Provide additional pricing when needed
  • Obtain approval before expanding the work
  • Update the project documentation

Unknown conditions should be treated as project information to evaluate, not as permission to perform unlimited additional work.

FROM PLANNING TO FINISH

Remodel plumbing usually occurs in more than one phase

Planning and Scope

Review layouts, fixture selections, equipment, access, known conditions, schedule requirements, and the responsibilities of each party.

Rough-In Plumbing

Install or modify approved water, drain, vent, gas, valve, and connection locations before finished surfaces conceal the work.

Testing and Inspection

Test accessible rough-in work and coordinate required inspections when they are included in the approved project responsibilities.

Fixture and Finish Connections

Return after the required surfaces, cabinets, countertops, fixtures, and equipment are ready for approved final plumbing connections and testing.

A return visit caused by incomplete cabinets, missing fixtures, incorrect products, unfinished surfaces, unavailable access, or another trade’s incomplete work may require separate scheduling and additional charges.

YOUR REMODELING PLUMBING PROJECT

What happens after you contact us

  1. 01

    Describe the rooms and plumbing changes

    Tell us which rooms are changing, which fixtures or appliances may move, whether walls or floors will be opened, and whether the project is already under construction.

  2. 02

    Share plans and product information

    Provide available layouts, fixture schedules, cabinet plans, appliance specifications, photos, measurements, and project contacts.

  3. 03

    Review the accessible existing plumbing

    NexGen evaluates visible fixtures, piping, shutoffs, equipment, access, and known conditions that may affect the proposed work.

  4. 04

    Define the plumbing scope

    The plumbing work is separated from demolition, framing, electrical, HVAC, waterproofing, cabinetry, tile, countertops, and finish restoration.

  5. 05

    Confirm specifications and rough-in locations

    Final fixture, appliance, cabinet, countertop, floor, wall, and mounting information is reviewed before approved plumbing locations are treated as final.

  6. 06

    Complete the approved rough-in work

    Approved piping and connection changes are completed in coordination with available access and the project schedule.

  7. 07

    Return for approved final connections

    Fixtures and equipment are connected after the required surfaces, products, access, and supporting work are ready.

  8. 08

    Test and document the completed plumbing work

    NexGen tests the accessible completed work as conditions allow and explains remaining limitations, exclusions, or recommendations.

Project schedules can change. NexGen should be notified before another trade closes, covers, or blocks access to approved plumbing work.

Information that can help us prepare

QUESTIONS

Helpful answers before the remodel begins

When should NexGen become involved in a remodeling project?

NexGen should be involved before final plumbing locations are concealed by framing, cabinets, countertops, waterproofing, tile, flooring, or finished walls. Earlier involvement allows fixture specifications, access, piping routes, and scope boundaries to be reviewed before changes become more disruptive.

Does NexGen design the entire bathroom or kitchen layout?

No. The owner, designer, architect, remodeler, or general contractor is responsible for the final project layout. NexGen reviews the plumbing requirements associated with the approved layout and available fixture information.

Can NexGen provide an estimate from preliminary plans?

Preliminary plans may support an initial scope discussion or estimate, but pricing and rough-in locations may change when final dimensions, specifications, access, existing conditions, or product selections differ.

Do I need final fixture selections before plumbing begins?

Final product information is strongly preferred before rough-in. Fixtures that appear similar can require different drains, valves, supplies, supports, clearances, and connection locations.

What happens if hidden plumbing problems are discovered?

NexGen should document the discovered condition, explain how it affects the approved scope, present available options, and obtain approval before performing additional work beyond the existing authorization.

Does NexGen handle demolition and finish restoration?

Demolition, drywall, paint, tile, flooring, cabinetry, countertops, framing, waterproofing, roofing, and finish restoration are not included unless specifically listed in the written approved scope.

Can plumbing be moved after tile or cabinets are installed?

Some changes may remain possible, but completed finishes can limit access and increase the amount of demolition, restoration, coordination, and cost required.

Who coordinates the other trades?

The owner, remodeler, or general contractor is responsible for overall project coordination unless another arrangement is specifically included in writing.

Can NexGen work directly with my contractor or remodeler?

Yes. Provide the project contact, plans, schedule, approval process, and access requirements so the plumbing work can be coordinated with the broader project.

Does remodeling plumbing usually require more than one visit?

Yes. Planning, rough-in work, testing, inspections when applicable, and final fixture or equipment connections often occur at different stages.

What can delay the plumbing schedule?

Missing fixture specifications, incomplete demolition, unavailable access, framing changes, incorrect products, unfinished cabinets or countertops, permit requirements, hidden conditions, and incomplete work by other trades can affect scheduling.

Can NexGen help identify repiping opportunities during a remodel?

Yes. Open walls and floors may create access to aging or poorly routed piping. Repiping should be evaluated and approved as a separate scope rather than assumed to be included automatically.

Does NexGen install customer-supplied fixtures?

Customer-supplied fixtures may be installed when the products are present, complete, suitable for the approved application, and compatible with the prepared plumbing. Missing, damaged, incorrect, or incompatible products may require rescheduling or additional work.

Should I call NexGen during early remodeling planning?

Yes. Call to discuss early remodeling planning, even when the project is not urgent. Mention any active leaking, damaged piping, unsafe gas condition, or immediate construction schedule issue that requires prompt attention.

Define the Plumbing Scope Before the Work Gets Covered Up

Share the rooms, proposed layout, fixture information, project contacts, access conditions, and schedule so NexGen can begin defining the remodeling plumbing scope.