Kitchen Plumbing Installation
Sink, dishwasher, disposal, and supply-line plumbing installed as part of a full kitchen remodel. Licensed Florida general contractor. Free quote, no trip fee, same-day appointment scheduling.
Kitchen plumbing as one phase of a full remodel
Gaven handles the plumbing as one phase of a full kitchen remodel — not as a service you can book on its own. The plumbing ties into the rest of the project: demolition, electrical, cabinets, countertops, flooring, and the new sink, faucet, dishwasher, and disposal that go in near the end. A full remodel runs 8–16 weeks across four tiers, and the plumbing is scheduled inside that window, not around it.
Gaven does notinstall kitchen plumbing as a standalone job. If you want only a faucet swapped, a single sink moved, or a dishwasher line run with no other work happening — that's single-trade work, and a licensed plumber who specializes in service calls will be faster and cheaper. We'd rather point you to the right trade than bill you for a project that doesn't fit.
What kitchen plumbing rough-in involves
What does kitchen plumbing rough-in include? Rough-in is the stage where the water supply lines and the drain-waste-vent (DWV) piping go in before the walls close. It happens early — after demolition and any framing changes — and it has to pass inspection before drywall, flooring, or cabinets cover any of it.
- Supply — hot and cold water lines to the sink, dishwasher, fridge ice maker, and any pot filler
- Drain — the waste line carrying water away from the sink and disposal
- Vent — the pipe that lets air into the drain so it flows and traps stay sealed
Horizontal drain lines under three inches slope at 1/4 inch per foot so waste moves on gravity alone. The trap arm has a maximum length set by code, because one that runs too far loses its seal. The Uniform Plumbing Code published by IAPMO is where most fixture-drainage rules trace back. Gaven sequences the rough-in alongside the kitchen electrical installation so both pass inspection together.
Cost drivers & what moves the number
Plumbing for a full kitchen remodel usually lands between $4,000 and $7,000 nationally, with most projects near the middle. That range moves a lot depending on a few specific decisions, and knowing them up front keeps the budget honest.
The biggest driver is whether the layout changes. If the sink and appliances stay put, the existing lines mostly stay in place and cost stays low. The moment a sink moves to an island or a different wall, pipes get rerouted through walls and floors — labor, material, and sometimes a longer permit review. A new gas line, a pot filler, or under-sink filtration each add their own line item.
Pipe material matters too. Copper costs more than PEX but holds up well; the Copper Development Association documents the tube types used in residential supply work. See the full kitchen tier pricing breakdown for where plumbing sits inside the four tiers.
Moving the sink & appliances
Can the sink and dishwasher be moved during a remodel? Yes — but moving them is what separates a simple update from a full reroute. Keeping fixtures in place is cheapest. Relocating means new supply, drain, and vent runs, and in Miami-Dade that triggers a plumbing permit and a rough-in inspection.
- Sink to an island — a new drain and vent routed under the slab or floor, plus supply and a way to vent the island drain
- Dishwasher to a new spot — a supply line, a drain connection, and a high loop or air gap to stop back-siphoning
- Refrigerator water line — a dedicated 1/4-inch supply line to the fridge
The dishwasher air gapis a detail people miss — code requires an air gap fitting or high loop so wastewater can't flow backward. Gaven builds these moves into the plan so the cabinet and countertop phases account for where the plumbing now sits.
Gas line installation for a gas range
Going from an electric range to gas — or moving a gas cooktop — means a gas line with its own safety bar. Gas piping carries real risk, so it's installed by qualified trades, pressure-tested, and inspected separately from the water lines.
Cost depends mostly on distance. The farther the kitchen sits from the gas meter, the longer the line runs and the higher the cost. A short extension is modest; a fresh line across the house to a relocated range is not. Permits and a dedicated inspection apply either way.
Worth planning for: if a gas range might be in your future even if you're electric now, a remodel is the right time to run the line and cap it. Opening the walls again later costs far more. Gaven flags this during design so you decide once, not twice.
Replacing old galvanized & polybutylene pipe
Many Miami-Dade and Broward homes built before 1990 still have galvanized steel supply lines, and some 1980s-to-mid-90s homes have polybutylene. Both are problems a remodel tends to expose. Galvanized corrodes from the inside, dropping water pressure over decades. Polybutylene becomes brittle and fails at the fittings.
When the walls are already open, replacing this pipe is far cheaper than an emergency repair later — the demolition already happened. Gaven inspects the supply lines during rough-in and flags aging pipe before it gets sealed up. Catching it now means you're not tearing out a finished kitchen in three years because a 40-year-old line let go.
This is why the rough-in inspection matters. Once an inspector signs off and the walls close, anything left behind stays until the next renovation. The backsplash and lighting phases only start after the plumbing is verified and approved.
Questions homeowners ask
Is kitchen plumbing available as a standalone project?
No. Gaven installs kitchen plumbing only as part of a full kitchen remodel that also includes demolition, electrical, cabinets, countertops, flooring, and final inspection. For a single fixture moved or a faucet swapped with no other work, look for a licensed plumber who specializes in service calls.
Do you charge to come measure and quote?
No. The quote is free and there's no trip fee. The plumbing scope is measured and priced as part of the full kitchen remodel estimate, delivered at the site visit or within 24 hours.
Do I need a permit for kitchen plumbing in Miami-Dade?
In most cases, yes. Moving or adding a fixture, rerouting supply or drain lines, or running a new gas line all require a plumbing permit and a rough-in inspection across Miami-Dade, Broward, and Palm Beach County. Gaven pulls the permits and schedules inspections.
How fast can I schedule a site visit?
Same-day appointment scheduling is available. Call (786) 397-8380 or request a quote online, and Gaven will set a site visit for the full kitchen remodel.
Are you licensed to handle the plumbing?
Yes. Gaven Constructions holds Florida Certified General Contractor license GCG1524886, verifiable at MyFloridaLicense.com. The plumbing is performed under that license and the required trade qualifications, permitted, and inspected.
How does plumbing fit the remodel timeline?
The rough-in happens early — after demolition, before the walls close — and finish plumbing (setting sink, faucet, disposal, dishwasher) happens near the end. Inside an 8–16 week remodel, both phases are scheduled around the inspections.
What's the difference between rough-in and finish plumbing?
Rough-in is the hidden work: supply, drain, and vent piping installed before the walls close, then inspected. Finish plumbing is the visible work: connecting and setting the sink, faucet, disposal, and dishwasher once cabinets and counters are in.
Do you replace old galvanized or polybutylene pipe?
When the rough-in exposes aging galvanized or polybutylene supply lines, Gaven flags them and includes replacement in the scope. Replacing failing pipe while the walls are open is far cheaper than an emergency repair after the kitchen is finished.
Explore the other phases
Start with a full kitchen remodel quote
Kitchen plumbing installation is part of the full kitchen remodel work Gaven handles across Miami-Dade, Broward, and Palm Beach County, under license GCG1524886, verifiable at MyFloridaLicense.com. Free quote, no trip fee, same-day appointment scheduling.