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(
49
)

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 time1 day
1 neighbors recently requested a quote
Recommended by93%of homeowners
Avatar for Drain Pro Plumbing Inc
Drain Pro Plumbing Inc
4.9(
560
)

Serving Sammamish, WA and surrounding areas

Approved

In business since 2009

Free estimates

Emergency services offered

"The need for a footing drain was a surprise to me during my basement remodel due to water leaking in through the blocks. Raman and his team got me on the schedule fairly quickly, did a great job. They also set up new plumbing for 2 bathrooms and a kitchen in the basement, and removed my old water heater and installed a tankless water heater. Any issues that came up, they were very quick to resolve (including an old copper pipe that they didn't install which welding came loose, and they were there same day to fix.) great honest service, reliable service. Pricing, well, plumbing is not cheap, but I think they are comparable to anyone in the business. I would definitely use them again. Thanks Drain Pro!"
Water service
Split water meter
Water meter installation
Water heater installation
Broken p-trap and pop assembly

+18

Response time1 day
Recommended by97%of homeowners
Avatar for Knockout Plumbing & Mechanical, LLC
Knockout Plumbing & Mechanical, LLC
5.0(
14
)

Serving Sammamish, WA and surrounding areas

Approved

In business since 2019

Emergency services offered

Warranties offered

"Zach and his crew were amazing! Our old water heater sprung a massive leak at 2:00am on a Saturday morning. Contacted Zach at 7:30am and he called right back and was here within the hour. Not only did we replace our water heater with a tankless model, but also moved it from the second floor to garage. Zach did all of this on a Saturday for a flat fee!! He and his crew were here for 9 hours without complaint or even seeming to take a rest!! Knockout Plumbing is indeed a 'Knockout' and I would highly recommend!! Kudos to all!!"
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+53

Recommended by100%of homeowners
Avatar for Apollo Plumbing
Apollo Plumbing
4.7(
541
)

Serving Sammamish, WA and surrounding areas

Approved

In business since 2005

Emergency services offered

Credit card accepted

"It went well. Apollo plumbing got the job done and that’s what I needed. You get what you pay for! If you want the job done right, I recommend Apollo."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+4

10 neighbors recently requested a quote
Recommended by89%of homeowners
Avatar for Mad Pipers Plumbing
Mad Pipers Plumbing
4.8(
28
)

Serving Sammamish, WA and surrounding areas

Approved

Free estimates

Emergency services offered

Warranties offered

"Super responsive, very knowledgeable and professional. I'm very happy with the results. Based on this experience, I will hire them again to complete some additional work."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+2

2 neighbors recently requested a quote
Recommended by85%of homeowners
Avatar for Seatown Electric Plumbing Heating & Air
Seatown Electric Plumbing Heating & Air
4.8(
1,338
)

Serving Sammamish, WA and surrounding areas

Approved (Corporate)

In business since 2013

Emergency services offered

Warranties offered

"A big thank you to Clay for fixing my plumbing issue and not only recommending but contacting an awesome remediation crew. I’ll be using Seatown for plumbing needs in the future. Thank you!"
Generator Repair
Additional Photos
Additional Photos
Electrical Panel Repair
Additional Photos

+44

94 neighbors recently requested a quote
Recommended by93%of homeowners
Avatar for Cahill's Plumbing & Heating
Cahill's Plumbing & Heating
4.3(
35
)

Serving Sammamish, WA and surrounding areas

Approved

Credit card accepted

Customers say: Quick response

"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 Knockout Plumbing & Mechanical, LLC
Knockout Plumbing & Mechanical, LLC
4.9(
7
)

Serving Sammamish, WA and surrounding areas

Approved

In business since 2019

Free estimates

Emergency services offered

Knockout Plumbing & Mechanical LLC is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests, and make their concerns the basis of our business.

Bathroom Remodel
Toilet Install
Bathroom Remodel
Specialty Toilet Install
New Construction/Rough in

+10

Response time1 day
10 neighbors recently requested a quote
Recommended by85%of homeowners
Avatar for Iron Earth Construction LLC
Iron Earth Construction LLC
5.0(
4
)

Serving Sammamish, WA and surrounding areas

Approved

In business since 2021

Free estimates

Credit card accepted

We are committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests, and make their concerns the basis of our

Before
During rooftop build
Rooftop Deck during
AFter
Installation of Euro Fencing

+43

Response time3 days
4 neighbors recently requested a quote
Recommended by75%of homeowners
Avatar for O'Neill Plumbing
O'Neill Plumbing
4.8(
1,031
)

Serving Sammamish, WA and surrounding areas

In business since 1917

Free estimates

Emergency services offered

"ONeill Plumbing hit another home run with James and Kyle. They were prompt, courteous and knowledgeable. James imparted quite a bit of wisdom when it came to contacting my faucet manufacturer for a replacement part and Kyle told me how to deal with the water company should I ever experience a broken pipe and any resulting water bill issue. O’Neill Plumbing has been my go to plumber for many years and James and Kyle have definitely made sure I won’t be changing anytime in the foreseeable future."
Recommended by93%of homeowners
...
Showing 1-10 of 885
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.