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Find Plumbing installers for a remodel or addition in Seattle

Avatar for Schmitty's Plumbing
Schmitty's Plumbing
4.8(
50
)

Serving Seattle, WA and surrounding areas

Approved

In business since 2016

Free estimates

Emergency services offered

"We will be using Schmitty's Plumbing for all of our plumbing work from now on! We were able to get an appointment quickly, and Brian was on-time, pleasant, and professional. He was clear upfront about costs and options, explained the work that was needed, and quickly made the needed repairs at a reasonable cost. We are very happy to have found a plumber that we have confidence in."
Response time2 days
Response rate100%
Recommended by93%of homeowners
Avatar for Knockout Plumbing & Mechanical, LLC
Knockout Plumbing & Mechanical, LLC
5.0(
14
)

Serving Seattle, WA and surrounding areas

Approved

In business since 2019

Emergency services offered

Warranties offered

"The estimate provided a clean and competitive estimate. After property owner decided to hire the company, job is scheduled to start a few days later. This is very impressive in consideration of busy season in the summer. The plumbers took a few days to work thoroughly on all items to bring all the plumbing to code. The owner has personally waited for county inspectors twice at the job site. The county inspector commented the job was performed very professionally. Love to refer Knockout Plumbing to friends."
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+53

Recommended by100%of homeowners
Avatar for Drain Pro Plumbing Inc
Drain Pro Plumbing Inc
4.8(
603
)

Serving Seattle, WA and surrounding areas

Approved

In business since 2009

Free estimates

Emergency services offered

"Drain Pro plumbing installed a new Toto flush mount toilet for us which requires a bit more work and effort than standard toilet installations. The technician was extremely knowledgeable, professional, and friendly. They have done other projects for us in the past such as convert a single vanity in the master to a dual vanity and redo plumbing in the kitchen to accommodate our IKEA drawer. I would hire them again for any future projects."
Water service
Split water meter
Water meter installation
Water heater installation
Broken p-trap and pop assembly

+18

Response time1 day
1 neighbors recently requested a quote
Recommended by97%of homeowners
Avatar for Northwest Hydrojetting, LLC
Northwest Hydrojetting, LLC
5.0(
15
)

Serving Seattle, WA and surrounding areas

Approved

Super Service Award Winner

In business since 2018

Free estimates

Emergency services offered

"I was contacted by Northwest Hydrojetting, LLC immediately after my request for a water heater replacement on Angie's list. They supplied a base quote and said they could complete by next day. The quote was reasonable and after I checked a few other responses, I checked back and they said they could actually get out the same day. They were quick, responsive, polite and very professional. As a recently retired Facilities Superintendent I would recommend this company to my business colleagues as well as private home owners."
Camera inspection
Camera inspection
Repairs
Remodels
Remodels

+11

Response time4 hrs
37 neighbors recently requested a quote
Recommended by7%of homeowners
Avatar for SeaTown Electric Heating and Air
SeaTown Electric Heating and Air
4.7(
1,637
)

Serving Seattle, WA and surrounding areas

Approved

In business since 2014

Free estimates

Emergency services offered

"They were on the high end in terms of the pricing but they were available to install within a few days after I accepted their proposal instead of waiting FY or a month or more. They were punctual as Ms professional."
Seattle's Rewire Specialists
Generator
Tesla Chargers
Knob and Tube Removal
Ductless Install

+26

Response time1 day
Recommended by93%of homeowners
Avatar for Apollo Plumbing
Apollo Plumbing
4.5(
630
)

Serving Seattle, WA and surrounding areas

Approved

In business since 2005

Emergency services offered

Credit card accepted

"Diego first diagnosed our entire plumbing system as I asked. He was very detailed and thorough and carefully detailed everything, the good and bad. He gave me a bid and even suggested that I might get other bids. I developed a lot of confidence from the professional and clear manner he presented the needs we had for our plumbing update. My wife and I decided it was the better plan to just take care of all of it now ahead of future issues that we could face as the 50 year old plumbing system aged further. By the way, there was a crack in one part of the drain pipe and the water pipes were showing early signs of leaking at joints. Way over the top for me to want to just “keep my fingers crossed” on the future. Diego put us at the top of the repair priority list and completed all the work in 6 work days. Cudos to Debbie and Samara for coordinating all of the scheduling for the job and processing of the paperwork. They were absolutely super. A real special thanks to Diego, just totally top drawer to work with!! My highest recommendation to Apollo Plumbing!"
Additional Photos
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+4

12 neighbors recently requested a quote
Recommended by89%of homeowners
Avatar for Eagle Pipe & Mechanical LLC
Eagle Pipe & Mechanical LLC
5.0(
12
)

Serving Seattle, WA and surrounding areas

Approved

In business since 2015

Free estimates

Emergency services offered

Eagle Pipe Heating & Air takes great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job.

HVAC
New installation
Company Vehicle
11 neighbors recently requested a quote
Avatar for Cahill's Plumbing & Heating
Cahill's Plumbing & Heating
4.1(
38
)

Serving Seattle, WA and surrounding areas

Approved

Credit card accepted

Customers say: Super punctual

"These guys were amazing! We had the plastic water intake valve behind the toilet burst and spray water everywhere at 4am. after cleaning up the mess we called Cahill's at about 6:45am and they arrived by 8:30am to fix the valve, which took them like 15 minutes. I asked them about doing all of the valves in the house (16 total) and they agreed to come back at noon to do all of them. At exactly noon they were back at my house and had all the valves changed out in less than 2 hours. They were friendly, clean, polite, and provided excellent customer service. Jason and Harry were the team that came to my house and I would highly recommend them. And thanks to Russell, the owner, for giving us a great deal on the work his team did. We will be calling on Cahill's for any future plumbing needs."
Recommended by82%of homeowners
Avatar for Randklev Plumbing LLC
Randklev Plumbing LLC
4.9(
6
)

Serving Seattle, WA and surrounding areas

Approved

Super Service Award Winner

In business since 2025

Free estimates

Credit card accepted

"Our family is very satisfied with Randklev Plumbing LLC service 👍. Will and his great team work really effectively, on time and take their highly responsibilty on their job. Last week our refrigerator pipe was broken issue with water leaked badly. They came and fixed very professionally . We recommend to y’all call them Randklev Plumbing LLC when needed. They have very good credit and clientele in town. Angela Ho"
Response time6 hrs
71 neighbors recently requested a quote
Recommended by16%of homeowners
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Showing 1-10 of 254
FAQs for plumbing installation for a remodel or addition projects in Seattle, WA

Adding bathroom plumbing to a detached garage starts with the basic line installation cost of $900 to $1,300. On top of this base expense, you'll need to budget for each fixture. A toilet costs  $250 to $550, sinks cost $150 to $800, and a shower or bathtub costs $400 to $1,900. The project will also require ventilation, moisture-resistant materials, and possibly electrical work. Remember that these costs reflect only the plumbing aspects—additional construction, finishing, and permitting expenses will apply to complete a functional bathroom space.

While certain aspects of garage renovation might be suitable for DIY enthusiasts, plumbing installation requires professional expertise. Connecting to water and sewer systems demands specialized knowledge and equipment, and improper installation can result in severe water damage, code violations, and potential health hazards. Most municipalities require permits for plumbing modifications, and these often stipulate that licensed professionals must perform work. Consider limiting your involvement to simpler tasks like painting or basic finishing work.

The timeframe for adding plumbing to a detached garage spans one to three days for the actual plumbing work. However, this represents only the active installation period. The complete project timeline must account for planning, obtaining permits (which can take weeks depending on your locality), coordinating multiple contractors if needed, and addressing any unexpected challenges that arise during installation. Weather conditions can also impact excavation and outdoor connection work.

Adding plumbing to a detached garage will likely increase your property taxes. Tax assessors consider plumbing an improvement that enhances property value and functionality. The specific tax impact varies by location and project scope. Converting a garage into living space with plumbing facilities can trigger significant reassessment in many jurisdictions. Before proceeding with your project, consult your local tax assessor's office to understand the potential tax implications and factor this ongoing expense into your decision-making process.

The Seattle, WA homeowners’ guide to plumbing installations for a remodel or addition

From average costs to expert advice, get all the answers you need to get your job done.