Top-rated plumbing installers for a remodel or addition.

Get matched with top plumbing installers for a remodel or addition in Sammamish, WA

Enter your zip and get matched with up to 3 pros

Matching on HomeAdvisor

Share some details icon
Share some details about your home project.
Match with local pros icon
Within moments, match with highly-rated local pros.
Compare quotes icon
Compare quotes and choose the best pro for the job.

Find Plumbing installers for a remodel or addition in Sammamish

Avatar for Schmitty's Plumbing
Schmitty's Plumbing
4.8(
50
)
Plumbing for a Remodel or Addition - Install

Serving Sammamish, 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
)
Plumbing for a Remodel or Addition - Install

Serving Sammamish, WA and surrounding areas

Approved

In business since 2019

Emergency services offered

Warranties offered

"We had a great experience with Knockout. Small plumbing repair job that they were able to fix quickly. Gave us multiple options on how best to address the immediate problem, as well as prospective problems in the future. No complaints and would definitely hire again."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+53

Recommended by100%of homeowners
Avatar for Mad Pipers Plumbing
Mad Pipers Plumbing
4.7(
32
)
Plumbing for a Remodel or Addition - Install

Serving Sammamish, WA and surrounding areas

Approved

Free estimates

Emergency services offered

Warranties offered

"I needed some additional work done to remove a kitchen disposal and put new pipes in and also to have pipes replaced on a back bathroom we had just remodeled. Mad Pipers did such a great job with the large re-piping job I hired them for over the summer, I didn't hesitate to call Zack & Ragen for the quote for the additional work. They replied promptly and we scheduled the work within a few days. The work was completed by Curtis who arrived on-time and did a great job! I wouldn't hesitate to recommend them to anyone in need of plumbing services!"
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+2

Recommended by85%of homeowners
Avatar for SeaTown Electric Heating and Air
SeaTown Electric Heating and Air
4.7(
1,638
)
Plumbing for a Remodel or Addition - Install

Serving Sammamish, WA and surrounding areas

Approved

In business since 2014

Free estimates

Emergency services offered

"Make the repair as requested and went beyond by installing our range which was quite a tight fit. But he persevered and got it done. I will definitely calling him for my next plumbing job."
Seattle's Rewire Specialists
Generator
Tesla Chargers
Knob and Tube Removal
Ductless Install

+26

Response time1 day
12 neighbors recently requested a quote
Recommended by93%of homeowners
Avatar for Cahill's Plumbing & Heating
Cahill's Plumbing & Heating
4.1(
38
)
Plumbing for a Remodel or Addition - Install

Serving Sammamish, WA and surrounding areas

Approved

Credit card accepted

Customers say: Super punctual

"Jason was terrific. Although he was later than promised, I received a call TELLING me he would be late, which is great customer service these days. He was friendly, skilled, and I couldn't ask for more. I will request Jason in the the future, and will always call Cahill's when I need a plumber."
1 neighbors recently requested a quote
Recommended by82%of homeowners
2 Sons Plumbing
5.0(
5
)
Plumbing for a Remodel or Addition - Install

Serving Sammamish, WA and surrounding areas

Approved (Corporate)

In business since 2017

Credit card accepted

Offers commercial services

2 Sons Plumbing is a full-service plumbing and sewer company serving the greater Seattle area. Known for reliable service, honest recommendations, and quality workmanship, our team handles everything from everyday plumbing repairs to complex sewer solutions—helping homeowners keep their systems running smoothly year-round.

Avatar for Iron Earth Construction LLC
Iron Earth Construction LLC
5.0(
4
)
Plumbing for a Remodel or Addition - Install

Serving Sammamish, WA and surrounding areas

Approved

In business since 2021

Free estimates

Credit card accepted

"They quickly assessed the situation, gave a reasonable quote, and were very proficient and professional. My condo unit was under contract and a water leak caused by another unit needed to be repaired asap and they did it. Also kept me well informed."
Before
During rooftop build
Rooftop Deck during
AFter
Installation of Euro Fencing

+43

Response time3 days
30 neighbors recently requested a quote
Recommended by75%of homeowners
Avatar for ALL PRO PLUMBING NORTHWEST
ALL PRO PLUMBING NORTHWEST
4.7(
67
)
Plumbing for a Remodel or Addition - Install

Serving Sammamish, WA and surrounding areas

In business since 1994

Emergency services offered

Warranties offered

"This is the only plumber we ever use--and we have issues with our elderly plumbing system several times a year. Reasonable rates and no nonsense. Noel is a down to earth guy who really knows his stuff. Call nobody else. Seriously, if we ever move out of this area, we plan to take him with us!"
Additional Photos
Response time1 day
Recommended by96%of homeowners
...
Showing 1-10 of 204
FAQs for plumbing installation for a remodel or addition projects in Sammamish, 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 Sammamish, 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.