Plumbing Subcontractor

Plumbing for New Builds & Remodels

From rough-in on a custom home to the final fixture on a bathroom remodel — we handle the plumbing start to finish so your project stays on schedule.

  • Rough-in and finish plumbing for new construction and custom homes
  • Bathroom, kitchen, and laundry room remodel plumbing
  • Water softener loop installation on new builds
  • Family-owned, licensed, bonded, and insured
  • Free estimates & transparent pricing

New Construction & Remodeling Plumbing

Two Types of Projects.
One Plumbing Company.

Whether you're breaking ground on a new home or finally tackling that bathroom remodel, Columbia Basin Plumbing handles the plumbing from the first pipe to the final fixture. We work with homeowners and general contractors across Kennewick, Pasco, Richland, and the surrounding Tri-Cities area.

Custom Homes & New Builds

Rough-in through finish plumbing on new residential construction. We coordinate with your general contractor and keep the job on schedule.

  • Underground rough-in

    main lines, drain, waste, and vent before the slab

  • Rough-in plumbing

    all supply and drain lines for each fixture location

  • Finish trim-out

    fixture installation, valve hookups, final connections

  • Water softener loop

    pre-plumbed loop for future softener install (or we install one now)

  • GC coordination

    plumbing work scheduled around your build timeline, not ours

  • Inspections & code compliance

    permitted, inspected, done right

We are a plumbing subcontractor on custom homes regularly across the Tri-Cities area. We don't do large-volume tract housing — our focus is quality custom residential work where the details matter.

Bathroom, Kitchen, & Laundry

Full remodel plumbing for any room in the house. We work directly with homeowners or alongside your general contractor.

  • Bathroom remodels

    shower, tub, toilet, sink, and all rough-in work if moving walls

  • Kitchen remodels

    sink relocation, dishwasher hookup, fridge water line, garbage disposal

  • Laundry room plumbing

    washer hookup, utility sink, drain line

  • Shower installation

    custom shower pan, valve, showerhead, all connections

  • Pipe relocation

    moving plumbing to accommodate the new structure

  • Fixture installation

    toilets, sinks, faucets, and all fixtures installed clean and code-compliant

We work directly with your contractor or independently — whatever keeps your project moving.

Columbia Basin Plumbing truck side view
Excavator digging soil in a field.
Two contractors reviewing blueprints on service van

New Construction

When Do You Rough In Plumbing for a New Home?

New construction plumbing happens in two main phases — rough-in and finish. Rough-in comes after framing but before insulation and drywall. Finish happens near the end of the build once the home is closed in. For most custom homes, we're on-site twice and coordinate inspections both times so your timeline doesn't stall.

  • Underground / Under-Slab Work

    Before the slab is poured, we install underground drain, waste, and vent lines and stub out supply locations. This is the work that can't be undone — it has to be right the first time.

  • Rough-in Plumbing

    Once framing is up, we run all supply and drain lines through walls and floors to each fixture location. The rough-in is inspected before drywall closes up — we make sure our work is ready to pass when that happens.

  • Finish Trim-Out

    Near the end of the build, we install all fixtures — toilets, faucets, sinks, showers, water heater, valves, and appliance hookups. Trim-out is the final plumbing inspection before certificate of occupancy.

Don't Skip the Water Softener Loop!

Tri-Cities water is hard. Installing a water softener loop during rough-in costs a fraction of what it costs to retrofit later. We recommend it on every new build we work on in Kennewick, Pasco, and Richland — and we can install a full softener at the same time if you're ready for it.

Why Choose Columbia Basin Plumbing?

We Work The Way You Need Us To.

Whether you're a homeowner managing a remodel or a general contractor running a build schedule, we fit into your process — not the other way around.

Stylized sink and vase icon in blue and yellow.

For Homeowners

Building a custom home or planning a remodel? We work directly with homeowners from first call to final walkthrough — no middleman required. We give you an honest estimate, explain the scope in plain language, and keep you informed throughout the job.

  • Free estimates and transparent pricing

  • We answer 24/7 — call or text anytime

  • We coordinate with your designer or GC if you have one

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For General Contractors

Scheduling reliability matters as much as quality on a job site. We show up when we say we will, communicate clearly, and get the rough-in done so the next trade can move in on time. We've been a reliable plumbing sub for custom residential builds across the Tri-Cities for years.

  • We schedule around your build timeline

  • Permit and inspection coordination handled

  • Direct point of contact — not a dispatch center

  • Experience with custom residential builds across the Tri-Cities

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Planning a Build or Remodel?

Tell us what you're working on and we'll give you a straight answer on scope, timing, and cost — before you commit to anything. We work with homeowners and general contractors across the Tri-Cities area.

(509) 619-5003

Not ready to call? Send a message →

Frequently Asked Questions

Need a Plumbing Subcontractor or Remodel Plumber?

These are the questions we answer every day for Tri-Cities homeowners and general contractors planning new builds and remodels.

Do I need a plumber for a bathroom remodel?

Can a plumber move pipes during a remodel?

How much does plumbing cost in a bathroom remodel?

Do you work with general contractors on new builds?

What Customers Say

Real Reviews from Real Neighbors

Don't take our word for it — here's what Tri-Cities homeowners and businesses are saying on Google.

Thank you Columbia Basin Plumbing for the excellent service. We had a leak under our kitchen sink that we just couldn't locate. You were able to get out next day and take care of the problem.

Travis quickly found and fixed our water leak. But even more impressive was him crawling on his belly in a very narrow crawl space to get to the leak. We are very thankful and happy for the services at Columbia Basin Plumbing.

Just Me February 14, 2025

I had a valve on my hot water tank that needed attention in my Pasco rental. I’ve worked with Columbia Basin in the past through a previous place of employment. They are a great referral partner! Megan, the owner, was prompt with getting someone scheduled and out to the house. She’s very nice to speak with and I think Lee resolved my problem for my renters! Thanks Megan & Lee!

Lauren Heen February 12, 2025

We love this family business! They came to our rescue at our business when we needed them the most. Excellent customer service, fair pricing, honesty and integrity. Highly recommended!

Jessie Schuh February 12, 2025

Very knowledgeable staff! Went above and beyond my expectations of customer service and experienced staff. Would recommend them to all my friends and family!

Catie Sloan June 3, 2024

I highly recommend Columbia basin plumbing. Had an emergency after a pipe burst after a cold night. They were able to schedule me same day and fixed the issue with ease. Competitive prices had me charged hundreds less than I was expecting so I am especially grateful for that. Tyler was my laborer, good dude very good customer service explained and broke everything down easily for me to understand. I will definitely be calling them back for any plumbing issues in the future

Gregorio Rodriguez February 14, 2024

Had them out for a dishwasher install. Went very smoothly, plumber showed up on time and did very clean work. I was able to get scheduled next day. Very happy and highly recommended.

Jacob Mesner December 1, 2023

They were able to come check out our hot water heater and replace it within 24 hours of us calling them, very responsive and reasonably priced! Would absolutely recommend!

Kristin Sherman September 20, 2023

Wonderful staff. Fair prices. Special thanks to Danny and Joey for excellent detection and service. Thanks Joey, for speaking with the claims adjuster!

Diane Olsen September 5, 2023

Second time they're saved my bacon. They were fast, professional, helpful. Andres made sure I checked the work and explained what happened, why, and what he did to fix the problem. I recommend.

Cody Reynolds May 9, 2023

Speedy service.

Jason Kloehn January 17, 2023

Absolutely great peeps... Steve is the best. Thank you

Cathie Pentecost December 17, 2022

Called them @ 10am. And offered a 12pm appt. Extremely fast service, had the clog in my drain removed in less then an hour!! Would recommend for all your plumbing issues or needs!!

Eric Nordman November 17, 2022

Excellent work and they are always on time

mark mowery October 1, 2022

Called them to fix some issues we had at work they where fast and friendly and we will continue to use them

Mario Perez June 15, 2022

Super nice and friendly staff. Fixed my tub drain quickly. So happy they helped!!

Sunken Treasures Games September 17, 2021

Tyler is very professionalAnd on time.He had several little items to get done and was very thorough and very helpful answering questions I would recommend Tyler anytime.Thank you, be a basin for making my

Chris Maudlin September 16, 2021

This is the second time we've used Columbia Basin Plumbing and both times we've had excellent service. The first was to install new faucets throughout the house, a garbage disposal, and the second time was to install a new hot water tank. The price has always been reasonable. The guys that do the work have always been extremely professional. They have my business for life.

Denise Stafford July 30, 2021

They responded and fixed my problem quickly, and for a great price!

Aaron Phillips February 26, 2021

I was dreading calling a plumber as I have never had to. Fast, friendly, excellent work at a price less than I had anticipated.

Theresa Rainey-Slack November 5, 2020

So grateful for Columbia Basin Plumbing. The office staff was so kind and understanding and great at communicating and getting our repair scheduled on a Friday afternoon. The plumber who came out was friendly and had us fixed up in no time along with some great advice for future repairs/projects.

Aerie Rogers September 25, 2020

I can't begin to say how impressed I am with Columbia Basin Plumbing! From the first second on the phone with Megan, all the way through finishing the job, they were courteous, knowledgeable, professional, reasonable, and do great work. They handled an entire replumb for us on an older manufactured home in a timely manner at a fair price. We are 100% satisfied and will use them in the future!

Stacee Connelly June 4, 2020

I gave them 5 stars even though there was a time hang up which is understandable. The gentlemen that came out was very professional and polite. He answered any questions I had and explained what needed to be done. They do charge one hour labor minimum which is typical but they would have been done in 20 mins... So the time hang up was the service man ran out of access panels and was gone for almost an hour running around town locating one to buy. This wasn't that big of a deal with me since I had no plans, but should be addressed in the review as it could be an issue if someone was on a time restraint. Their pricing I believe is fair they where less than half the amount Mr. Rooter wanted to charge. Overall, great experience.

Misty Mixon May 29, 2019

Absolutely Amazing, Hero's I'd say, I needed my water heater installed and had called 20 other places before reaching them, by far the best customer service I've ever had, they squeezed me in the same day and got the job done! Would call them again if I ever need services. Thanks again to the Columbia Basin Plumbing Team.

Cara McKinnis May 2, 2019

I cant say enough good things anout them. They really care. They actually went out of their way to not only do a good job for a fair price but helped me deal with the results of a nightmare plumber who left me in a bad pinch. They moved their schedule around and made it happen. Theyre not just a great company... theyre genuinely caring... nice people.

Benjamin Hysjulien March 29, 2019

Tyler was professional and faced with a very complicated issue. He kept on in very trying conditions until the situation was solved. Thank you!

Nancy Marquart March 5, 2019

Awesome company! Helped me over the phone no charge until we felt we found the problem! Thanks Jason!

Dpena Larios January 10, 2019

I have used Columbia Basin Plumbing for multiple project big and small, every single time the work is completed on time and within budget. They are very knowledgeable and professional, I would highly recommend them for all your plumbing needs.

Luis Miramontes January 8, 2019

I can not give Columbia Basin Plumbing a good enough review! We had our newest grandson coming to visit our home for the first time and our water heater went out the night before. Both my wife and I were in a panic! We called Columbia Basin Plumbing and were connected to Jason. He assured us he would have everything taken care of for us first thing in the morning. Jason came out to our house at 8:00 the next morning, (a Sunday on top of all of this,) diagnosed, changed out, cleaned up, and left in under two hours! Not only was the customer service fantastic, the price was less than half what we expected. I wholeheartedly recommend Jason and his whole team at Columbia Basin Plumbing for whatever plumbing needs you have! We are very thankful to see there are still those contractors out there willing to sacrifice their personal time to make sure their customers needs are taken care of.

Angelo Ciulla January 8, 2019

They were able to send somebody out the same day we called. The plumber, Tyler, was on time, fixed my issue, and was polite and courteous. The pricing was clear and fair. I would recommend them and will use this company for future issues.

Maria Bultena January 2, 2019

They were prompt, and understanding of our situation.

Kyle Bettencourt December 31, 2018

Best plumbing business in tricities!

Liv Vahn December 23, 2018

Spoke to Donna and she was super attentive to my situation and scheduled an appointment for the following day. Next day Jeremiah arrived on time and went right to work figuring out the toilet drain back problem. He was excellent and worked fast and was extremely knowledgeable about what was being done. For a bad situation it was a pleasure having Jeremiah figure it all out and great attitude. Thank you Columbia Basin Plumbing.

L haw October 23, 2018

Excellent work at a fair price from honest, helpful, and friendly staff. Never trust a 1 star review of this company. Any future plumbing work will start with a call to these guys

K Wilson October 17, 2018

Excellent and fast service. They were at the house within an hour of calling to replace an expansion tank that had gone bad and flooded our garage. I would definitely recommend this company. The techs name was Russ. He worked quickly and was very courteous.

Bill Edwards October 10, 2018

Fair and friendly service. I usually dont do these ratings....great!

Jeanette Linja September 11, 2018

They did a great job insalling my claw foot tub. Fast, friendly and skilled workers. I will be calling you guys for all of my plumbing needs. Thanks again!

Kate Strother September 6, 2018

Alex was excellent! Exceeded expectations! Thanks again!! Nic

nicolas arretche June 13, 2018

I needed a plumber ASAP and they worked with me and had someone here quick. They went above and beyond normal customer service and I really appreciated that! Thank you!!

Cyndi Hildman March 10, 2018

Fast, Friendly service at a reasonable price.

Great people and a great company! Columbia Basin Plumbing did a great job when our main sewage line collapsed. I cant believe how quick we were up and running again. The integrity, quality of services and fair price is incredible! I highly recommend!

Jessica Shaw January 3, 2018

Super friendly! Love seeing family business taking care of people so well! Amazing work! Thank you for your quick response!

Michelle Benavides November 3, 2017

Amazing customer service. A plumber you can trust! I highly recommend them. Their prices are very affordable.

Sandra Mondragon November 3, 2017

Did a great job. Was there when I need someone fast. Kitchen drain plugged, was very fast and a very nice guy. Very affordable. Cleaned up the mess and was like I hadn't even had a problem with my drain.

Patty Frost October 13, 2017

Great work at a fair price and super friendly, too.

Ryan Wright June 30, 2017

Megan and Jason are by far the most professional and efficient business owners I've met in a long time. Each time we have called them to our house Jason has been there within the day or two. If somthing comes up Megan is quick to stay in touch as to when they will be out. I completely trust the work they do as well as their word and that says a lot. If your looking for honest, proficient, affordable work. These guys put they're whole hearts into what they do. Look no further!!! Thanks for everything, Maraiah and Justin

Chevy Girl August 20, 2016

My husband and I were in the middle of moving and had our shower head break off in the wall and we just didn't have time to fix it our selves... Everyone else my husband called couldn't be to our old house to do the repairs for a few days and we just couldn't wait that long... We called Columbia Basin Plumbing and they were able to be out to the house within a few hours and had it fixed in less then an hour... Very friendly and professional!! And his rates were very reasonable!! They will be our first and only call of we ever need someone again!!

Karah Sovern May 8, 2016

Amazing costumer service!!! Saved us from flooding our neighbors and fixed or irrigation pipe and stayed for a while to make sure everything was ok! Thank you again Jason!

Meagan Hopper April 11, 2016

I called when all the others I called said it was going to be weeks before they could come out they said they would come today. We talked about what needed to be done and he did the work the workmanship was great and the bill was less that I excepted I am very happy and will call them again

Rob jordan March 29, 2016

Columbia Basin Plumbing (Jason) was super fast, courteous, and very pleasant. Best price around. I will definitely be using this company again.

Eric Burt March 9, 2016