New Construction Plumbing in Lakewood, WA

Inspection-Ready New Construction Plumbing Services in Lakewood, WA

Guest House, ADU and Addition Plumbing in Lakewood, WA

Guest houses and additions need plumbing that ties into the existing house without overloading old drain lines. We locate the existing sewer, check its condition with a camera and verify there is enough fall to the new building. Supply lines can be branched from the main house or run as a separate service, based on distance and pressure. We also handle the trenching between structures and restore the yard when we are done.

Water Heater and Recirculation Installation in Lakewood, WA

New homes commonly use tank water heaters in the garage, basement or utility room, or tankless units on an exterior wall. We size the heater to your bathroom count and install gas or electric connections, venting, an expansion tank and drain pan where required. Many owners add a dedicated recirculation line during rough-in, which is much less expensive than retrofitting later. Municipal water west of the mountains in Washington is generally soft, while supplies on the drier east side tend to run harder. If treatment makes sense for your water, we suggest planning space for a softener or filter loop at the same time.

Rough-In Plumbing Services in Lakewood

The rough-in phase is where the core plumbing system is installed within the walls, floors, and ceilings before drywall. This includes all supply lines, drain lines, and vent piping for every fixture. Our plumbers carefully plan and execute the rough-in, using durable fittings and ensuring all pipes are properly secured and leak-tested before inspection.

Sewer and Drainage Systems in New Builds in Lakewood

A dependable sewer and drainage system is essential for any new property. We design and install complete sewer lines, septic systems, and storm drains, ensuring proper grading and connection to municipal services or on-site treatment systems. Steep slopes and wet soils can shift over time, which stresses buried sewer and water lines and sometimes separates joints. We account for soil movement on your lot, using durable PVC piping and careful bedding to prevent future blockages or pipe damage.

Final Trim and Fixture Setting in Lakewood

At trim we install toilets, faucets, garbage disposals, dishwashers, ice maker boxes and laundry connections. We work with fixtures from Moen, Delta, Kohler, American Standard and the other brands builders commonly specify, or with owner-supplied fixtures. Every fixture is checked for flow, drainage and leaks, and angle stops are set straight and tight. We finish by running every fixture at once to verify the system drains and vents properly under load.

Fixture Installation and Finishing in Lakewood, WA

Once the rough-in is complete and walls are up, FHN Plumbing handles the final installation of all plumbing fixtures. This includes sinks, toilets, showers, bathtubs, dishwashers, and washing machines. We ensure everything is properly aligned, sealed, and fully functional, providing a polished finish to your new home's plumbing system.

Gas Line Installation for New Homes in Lakewood

If your new home will use natural gas for heating, cooking, or water heating, FHN Plumbing provides safe and code-compliant gas line installation. This involves running new gas lines from the main supply to all gas appliances. Our licensed plumbers confirm all connections are secure and tested for leaks, adhering to strict safety protocols for gas work.

Rough-In and Top-Out Plumbing in Lakewood, WA

Once framing is up, we run supply and vent lines through the walls and attic and set every stub-out for sinks, tubs, showers and appliances. We typically install PEX-A with a central manifold so each fixture gets its own line and shutoff. Shower valves are set at the heights you choose, and tub sets are installed and protected before the drywall is hung. A full pressure test is held for inspection so nothing hidden in the walls is ever in doubt.