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Top-Rated Plumbing installers for a remodel or addition in Eureka - Updated Nov 2026

Avatar for MAPLEWOOD PLUMBING
MAPLEWOOD PLUMBING
4.8(
337
)
Plumbing for a Remodel or Addition - Install

Serving Eureka, MO and surrounding areas

Approved

In business since 1985

Free estimates

Warranties offered

"Maplewood Plumbing was the 2nd company I called to replace a garbage disposal after the first company was blatantly trying to rip me off. The plumber they sent was on time, friendly, honest (he didn't try to upsell me models) and was less than a third the price of the 1st company I had called. Thankful for a company I can trust, I will absolutely use them again in the future!"
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+7

1 neighbors recently requested a quote
Recommended by95%of homeowners
Avatar for Mr. Rooter Plumbing of St. Louis
Mr. Rooter Plumbing of St. Louis
4.2(
351
)
Plumbing for a Remodel or Addition - Install

Serving Eureka, MO and surrounding areas

Approved

In business since 2017

Free estimates

Emergency services offered

"Garrett Korn was my installer from Mr. Rooter. I was informed prior to his arrival that he was on his way and he arrived shortly after 8:00 for an 8 - 10 AM window. He quickly analyzed our plumbing problem, gave us a quote right away (which I agreed to) and then left to get all the parts he needed. He was only gone for a short period of time, did all the work, and was totally completed before 10:00 AM. The quality of the work was very good and now we are up and running again. I would highly recommend Mr. Rooter and selfishly ask for Garrett. He is easy to work with and very competent."
Mr Rooter Neighborly Hub for Home Services
Courteous, Uniformed Professionals.
Keep your home clean with mats and shoe covers.
Provide a price before we start.
Revolutionary Drain Cleaning Services

+7

Response time1 day
100 neighbors recently requested a quote
Recommended by86%of homeowners
Avatar for Mr. Rooter Plumbing of St. Charles
Mr. Rooter Plumbing of St. Charles
4.9(
7
)
Plumbing for a Remodel or Addition - Install

Serving Eureka, MO and surrounding areas

Approved

In business since 2001

Emergency services offered

Warranties offered

"I called Mr. Rooter because I had called another Plumbing company to come out the night before and they were a no show.  They were extremely friendly over the phone.  I called at approx 8AM and said they'd be able to come out by 11AM.  They called at about 9:30 to say someone was available to come out now and I said that was perfect.  They arrived at 10AM.

Jason was the plumber who arrived and he was very very friendly and professional.  I told him the problem and we discussed pricing up front.  I had a coupon which he said they would definitely honor.  He immediately got to work.  He wore footies over his shoes while in the house.  He worked diligently and answered all of my questions.  After about an hour and being certain the line was clear he cleaned up, we took care of payment which was exactly what was discussed beforehand, and he was on his way.

A very pleasant and hassle free experience.  I will definitely be calling Mr. Rooter for the Franklin County area again for any plumbing needs and would recommend them to anyone needing this kind of work.

The job also comes with a 30 day warranty which I thought was great and definitely put my mind at ease just in case something happened again."
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+2

1 neighbors recently requested a quote
Recommended by83%of homeowners
Avatar for Mayo Plumbing Co
Mayo Plumbing Co
4.8(
481
)
Plumbing for a Remodel or Addition - Install

Serving Eureka, MO and surrounding areas

In business since 1990

Free estimates

Emergency services offered

"While performing two small repair jobs, they discovered a much more serious problem, a pipe leaking into the basement, which had been going on unnoticed for a long time. They were able to return the following day and make the repair. I was extremely impressed with their professionalism, the quality of their work, and their pleasant dispositions. The jobs were done quickly and the cleanup was thorough. I will absolutely call Mayo Plumbing again if I have a problem, small or large."
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+3

Recommended by96%of homeowners
Avatar for J & E Plumbing
J & E Plumbing
4.2(
166
)
Plumbing for a Remodel or Addition - Install

Serving Eureka, MO and surrounding areas

In business since 1974

Emergency services offered

Credit card accepted

"Have a high end faucet that was not letting water flow. I was able to partly fix it but needed help. Purchased a new faucet and called J & E to install. Curt was fantastic. He recommended we keep the Grohe Lady Lux we had because it is much better than the new ones you can get at the local hardware stores. He was able to completely take it apart and drove to Henry plumbing for a replacement part. The cost ended up being half the cost of the new faucet I purchased and was able to return."
Recommended by81%of homeowners
Avatar for ALLN1 Plumbing & Construction Co
ALLN1 Plumbing & Construction Co
4.8(
46
)
Plumbing for a Remodel or Addition - Install

Serving Eureka, MO and surrounding areas

In business since 2005

Free estimates

Emergency services offered

"Alln1 plumbing did an excellent job. They were knowledgeable, polite, efficient and effective. I work from home and they took care to make sure I could work and feel comfortable with them working throughout my home. I highly recommend this team of plumbing professionals."
Bathroom Renovation
Bathroom Renovation for Mr and Mrs Fields
Before
Plumbing Project
Bathroom renovation

+39

Recommended by95%of homeowners
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FAQs for plumbing installation for a remodel or addition projects in Eureka, MO

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 Eureka, MO 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.