Top-rated plumbing installers for a remodel or addition.

Get matched with top plumbing installers for a remodel or addition in Spokane Valley, 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 Spokane Valley

Avatar for My Guy Plumbing & Service, Inc.
My Guy Plumbing & Service, Inc.
5.0(
31
)

Serving Spokane Valley, WA and surrounding areas

Approved

In business since 2015

Free estimates

Customers say: Quick response

"Contacted Mike after waiting for the original plumber we called to cal back (never heard from him) . My daughter told us about My Guy had plumbed their bathroom. Mike told us he would be in Spokane on the 10th of March and that he could do a laundry room sink install in the afternoon. We sent him pictures of the old sink and the plumbing set up. He arrived as promised with all material in hand and within 4 hours he and his apprentice completed the job. The completed project was far better than we had ever hoped for. They did a total cleanup and removed the old concrete sink and did it all at a reasonable price. We would not hesitate to recommend Mike for any plumbing job."
Response time6 hrs
Recommended by100%of homeowners
Avatar for CFP Northwest
CFP Northwest
5.0(
65
)

Serving Spokane Valley, WA and surrounding areas

Approved

Super Service Award Winner

In business since 2023

Free estimates

Credit card accepted

"I’ve hired Jeremy for several projects - from fixing the gas line to my fire pit, to adding a hose bib and flushing my water heaters. He is always on time, kind, courteous, respectful and efficient. We are lucky to have him in Spokane - he always delivers too-rated service and has competitive pricing. Recommend 100%! "
Bathroom addition
Response time8 hrs
Response rate100%
11 neighbors recently requested a quote
Avatar for Plumbline
Plumbline
5.0(
7
)

Serving Spokane Valley, WA and surrounding areas

Approved

In business since 2025

Free estimates

Credit card accepted

We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business! Book with us online or feel free to give us a call today!\n\n\n\n

Replaced Water Heater.
Response time40 mins
Response rate94%
5 neighbors recently requested a quote
Smith Brothers Plumbing
4.9(
15
)

Serving Spokane Valley, WA and surrounding areas

In business since 1991

Free estimates

Warranties offered

"I recently had the pleasure of working with Smith Brothers Plumbing in Spokane, and I couldn't be more satisfied with their service. With over 40 years of experience, the owner, Tracy, brings a wealth of knowledge and expertise to every job. Despite their extensive experience, their pricing remains very fair, which is a rare find these days. They are incredibly clean, leaving no mess behind, and are both knowledgeable and efficient in their work. Their ability to solve problems was excellent due to their many years of seasoned experience, and I felt that what was offered was above and beyond the typical service provided by a plumber. I highly recommend them."
Recommended by100%of homeowners
South Hill Plumbing Llc
4.8(
102
)

Serving Spokane Valley, WA and surrounding areas

In business since 2009

Free estimates

Warranties offered

"Tom arrived, took one look at my faucet and told me I would be wasting my money having him repair the old faucet. He instructed me to go out and buy a Moen even a cheap Moen which I did/ He came back the next day and changed to faucet to the new faucet which was no easy job. The house had been a rental before I bought so the attachment to the sink was corroded and Tom had to file and saw to get the old faucet out. He came back a few days later to with sink hole covers to complete the job and did not ask me for payment until the job was completely finished. Even with all the work he had to do to get the old faucet out he did not over charge"
Recommended by96%of homeowners
...
Showing 1-10 of 165
FAQs for plumbing installation for a remodel or addition projects in Spokane Valley, 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 Spokane Valley, 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.