New Construction Plumbing in Redmond, WA
From underground sewer to final fixture trim, FHN Plumbing plumbs new homes and additions in Redmond, WA on schedule and prepared for every inspection.
- Quick Bids From Your Plans
- Licensed Plumbers
- Code Compliant
- Durable Materials
Your New Build Deserves the Best Plumbing in Redmond, WA.
Send us your plans and we'll return an itemized plumbing bid with a phase-by-phase schedule.
Trusted New Construction Plumbing for Your Home in Redmond, WA
FHN Plumbing works alongside general contractors, custom builders and owner-builders across the Redmond area. Our crews work with your concrete, framing and drywall trades so each plumbing phase is inspected and signed off before the next trade arrives.
Our expertise includes:
- Rough-in plumbing for all fixtures and appliances.
- Gas piping, water heater venting and pressure-tested final connections
- Sizing and installing main water and sewer lines.

Additional Plumbing Maintenance Services in Redmond, WA
Our maintenance and specialty plumbing services in Redmond, WA catch small problems before they become emergencies.

Customers
Why Choose FHN Plumbing for New Construction Plumbing in Redmond, WA?
Choosing the right plumbing contractor for new construction is essential for the long-term integrity of your home. Our team makes sure every pipe and fitting is installed to the highest standards.
- Schedule Discipline, We book underground, top-out and trim dates in advance and keep them.
- Tested Before Cover, Drain lines get a water or air test and supply lines get a pressure test before any inspection.
- Experienced Team, Our licensed plumbers have deep experience in new home plumbing, understanding the unique challenges of different foundation types.
Citywide Coverage
FHN Plumbing proudly serves every neighborhood and surrounding area of Redmond for new construction plumbing projects. Whether you're building downtown or in a quiet suburb, our team is ready to provide professional service.
Experienced Team
Each plumber at FHN Plumbing working on new construction projects is licensed, insured, and highly skilled. Their expertise means that your plumbing system is installed correctly the first time, from foundation to roof vents.
Safety-First Approach
We take every precaution to ensure a safe working environment and a compliant plumbing system for your new build. Our attention to detail in new construction plumbing safeguards your property and ensures long-term reliability.
Trusted Certified Redmond Plumbing Services Professionals
At FHN Plumbing, we take pride in providing licensed, certified plumbing services throughout Redmond, WA. Backed by recognized industry credentials, our experienced plumbers combine technical skill with genuine customer care. Whether it is repair, installation, or maintenance, we follow strict safety and quality standards to deliver lasting results you can trust.
Call Us Now
PHCC Plumbing Contractor Recognition
Better Business Bureau (BBB) Accreditation
Angi Certified Pro
ISO 9001 Quality Management CertificationInspection-Ready New Construction Plumbing Services in Redmond, WA
Fixture Installation and Finishing in Redmond, 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 make sure everything is properly aligned, sealed, and fully functional, providing a polished finish to your new home's plumbing system.

Commercial New Construction Plumbing in Redmond, WA
We offer complete commercial new construction plumbing for businesses, multi-family units, and industrial properties. This includes larger capacity water heaters, backflow prevention devices, specialized drainage systems, and compliance with commercial building codes. Our team handles everything from large grease traps for restaurants to long piping networks for office buildings, ensuring solid and efficient plumbing infrastructure across Redmond.
Underground and Under-Slab Plumbing in Redmond
The underground phase sets the drain, waste and vent layout that every fixture in the house will rely on. We trench, bed and slope PVC or ABS drain lines at a minimum quarter inch per foot and protect every pipe that passes through the slab or foundation with sleeves. Glacial till and dense hardpan are common in western Washington, and they drain poorly enough to keep water against foundations and in crawlspaces. We compact bedding carefully and avoid rigid points that could stress the pipe as the ground moves. Each line is water tested and left visible for the inspector before your concrete contractor pours.
Preventing Common Washington Plumbing Issues in New Builds in Redmond, WA
New construction in Washington must account for local conditions. Glacial till and dense hardpan are common in western Washington, and they drain poorly enough to keep water against foundations and in crawlspaces. We focus on installations that hold up to shifting foundations and soil movement, which can stress pipes. Municipal water west of the mountains in Washington is typically soft, while supplies on the drier east side tend to run harder. We recommend appropriate piping materials and treatment options to minimize scale buildup over time, so your new home's plumbing lasts for decades.
New Construction Plumbing Cost Planning in Redmond, WA
Plumbing for a typical new single-family home usually runs about 4 to 8 percent of total build cost, depending on fixture count and finish level. A modest three-bedroom home often lands between $12,000 and $25,000, while custom homes with multiple suites and outdoor kitchens run higher. Choices like a manifold PEX system, a recirculation loop and fixture grade move the number most. We break the bid out by phase so you can see clearly where the money goes.
Gas Piping for New Homes in Redmond
We size and install gas piping for ranges, water heaters, furnaces, fireplaces, pool heaters and outdoor kitchens. Black iron and CSST systems are both available, and CSST is bonded per manufacturer and code requirements. We calculate total BTU load and pipe length so every appliance gets enough pressure even when everything runs at once. The system is pressure tested and inspected before the utility installs the meter.
Commercial and Multifamily New Construction in Redmond
We also plumb small commercial buildouts, offices, retail suites and multifamily projects. These jobs often require grease interceptors, backflow assemblies, commercial water heaters and ADA compliant fixtures. We read commercial plans, coordinate submittals and keep the general contractor updated through each inspection. Our crews scale up so plumbing never becomes the bottleneck on your project.

Water Heater and Recirculation Installation in Redmond, 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 typically soft, while supplies on the drier east side tend to run harder. If treatment makes sense for your water, we recommend planning space for a softener or filter loop at the same time.
New Construction Plumbing Near Me in Redmond, WA
If you're searching for dependable new construction plumbing near me in Redmond, WA, FHN Plumbing is your trusted local expert. Our team is ready to move quickly for your project, providing timely and efficient service right in your neighborhood.
When you are searching for new construction plumbing near me in Redmond, look no further than FHN Plumbing. Our local team is positioned to serve all areas, providing timely and reliable service for your building projects. We take pride in being the go-to plumbing partner for builders and developers across the area.
FHN Plumbing at a Glance
- Fully licensed plumbing team covering Redmond, WA
- Same-day appointments and 24/7 emergency response
- Upfront, flat-rate pricing before work begins
- 4.9-star rated by 382+ Washington customers
Redmond Map
Redmond Information
- Population
- 80,280
- Area codes
- 425/206/564
- Service area
- Redmond and communities within 40 miles
- Nearby
- Kirkland, Bellevue, Sammamish, Bothell
New construction plumbing in Redmond, WA requires careful attention to detail, because shifting soil can put stress on foundations and underground piping. Glacial till and dense hardpan are common in western Washington, and they drain poorly enough to keep water against foundations and in crawlspaces.
Expert Services
Trust our professionals for reliable FHN Plumbing solutions in Redmond, WA.
Our Specialized Plumbing Services in Redmond, WA
At FHN Plumbing, we provide a complete range of plumbing services across Redmond, WA. From leak detection to full system installations, our team ensures fast, precise, and affordable service for both residential and commercial properties. Explore our core services below:
How Our New Construction Plumbing Process Works in Redmond, WA
From initial planning to final installation, FHN Plumbing follows a clear approach to deliver quality new construction plumbing in Redmond, WA.
Request a Quote
Call (425) 491-3131 or send your plans and fixture schedule. We return an itemized bid that breaks out underground, rough-in, top-out and trim.
Phase Scheduling
We set dates for each plumbing phase around your concrete and framing schedule. You get a single point of contact who confirms each visit in advance.
Install, Test and Trim
Our crew installs each phase, pressure tests it and meets the inspector. At final trim we set fixtures, test every line and walk the home with you.
Frequently Asked Questions About New Construction Plumbing in Redmond
The cost of new construction plumbing in Redmond, WA varies a great deal based on the size of the home, number of bathrooms, complexity of the system, and chosen fixtures. Generally, you can expect to pay anywhere from $10,000 to $30,000 or more for a complete system, including rough-in and finish work. We provide a detailed estimate after reviewing your specific blueprints.
East side homes near Redmond and beyond face bigger temperature swings, which strain pipes, fittings and outdoor plumbing. Disconnecting hoses, insulating crawlspace pipes and protecting hose bibs before the first freeze prevents most winter damage. We select materials and installation methods that can withstand local conditions, insulating pipes and burying lines at adequate depths where freezing is a risk. We also use materials that can handle thermal expansion and contraction, helping prevent leaks and bursts.
We install a wide range of trusted plumbing fixture brands based on your preferences and budget, including Kohler, Moen, Delta, American Standard, and Toto. We can also accommodate specific requests if you have a particular brand or style in mind, ensuring quality and availability for your new home.
We install a wide range of well-known plumbing fixture brands, including Moen, Kohler, Delta, American Standard, and Toto. We can work with any brand you specify or recommend options that fit your budget and style for your new build in Redmond.
The timeline for new construction plumbing depends on the project's scope. The rough-in phase, which involves installing the hidden pipes, typically takes 1 to 2 weeks. The final fixture installation and connection usually takes another 3 to 5 days, spread out during the later stages of construction. We work closely with your general contractor to stay on schedule.
We typically use PEX-A for water supply because it handles heat and resists the scale and pinhole problems copper can develop with aggressive or hard water. Drains are usually PVC or ABS, depending on local code and builder preference. Copper is available for mains or exposed runs when you want it.
Several inspections are required during new construction plumbing. These typically include an underground or rough-in inspection before walls are closed, a top-out inspection if applicable, and a final inspection after all fixtures are installed and the system is operational. We schedule and manage all inspections to ensure compliance.
FHN Plumbing offers a comprehensive warranty on all our new construction plumbing installations. This covers both materials and labor, giving you peace of mind that your new plumbing system in Redmond is protected against defects for a specified period after completion.
What People Are Saying About Our Plumbing Experts?

James P.
Our commercial plumbing system had a leak under the sink, and FHN Plumbing handled it professionally. The plumbers arrived quickly and restored everything without disruption to our customers.
Commercial Plumbing · Shoreline, WA
Patricia H.
We had a slab leak that two other companies could not find. FHN Plumbing located it in under an hour, explained our options, and the price matched the quote to the dollar.
Slab Leak Repair · Bellevue, WA
Robert G.
The trenchless sewer replacement saved our front yard. They walked us through the camera inspection footage first so we knew exactly what we were paying for.
Sewer Line Replacement · Sammamish, WA
Emily R.
I called FHN Plumbing for plumbing repair, and the technician was fast, polite, and thorough. They explained the problem clearly and fixed it the same day. I will definitely hire them again. Highly recommended!
Plumbing Repair · Redmond, WA
Mark T.
When our office needed drain cleaning, FHN Plumbing provided quick, reliable service. The plumber arrived on time and made sure every drain flowed perfectly before leaving. Very satisfied.
Drain Cleaning · Bothell, WA
Daniel K.
A pipe burst at 11 pm and they actually answered. The plumber showed up within the hour, shut everything down, and had us back to normal the next morning. Could not ask for more.
Emergency Plumbing · Sammamish, WA













