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Find Plumbing installers for a remodel or addition in Mililani

Avatar for Continental Mechanical Services LLC
Continental Mechanical Services LLC
New to Angi

Serving Mililani, HI and surrounding areas

Approved

In business since 2015

Free estimates

Emergency services offered

With decades of experience in commercial and industrial projects and services, our company is proud to extend our top-tier mechanical services to residential clients. We specialize in plumbing solutions and backflow inspections as well as air conditioning installation, maintenance, and repair. Our expertise also encompasses HVAC controls, fire protection systems, commercial refrigeration systems and sheet metal work, ensuring comprehensive solutions for your home's needs. Our dedicated team is committed to delivering professional, efficient, and reliable service to enhance the comfort and safety of your residence.?

Install New PRV's
Correct PRV station
Howard Hughes Waiea Condo
Howard Hughes Waiea Condo
Correct PRV Station

+1

Response time12 hrs
47 neighbors recently requested a quote
Steve's Plumbing & AVC Service
New to Angi

Serving Mililani, HI and surrounding areas

Approved

In business since 1987

Credit card accepted

Offers commercial services

Here at Steve's Plumbing & AC Service, Inc., we are a Maui plumbing and air conditioning contracting company that specializes in AC repair and replacement, plumbing repair, service work, and remodeling. We have the experience, manpower, and inventory necessary to handle any project, no matter whether it is large or small. We are also a family-owned and operated business. We are committed to providing excellent workmanship and high-quality products for every project we undertake. We offer a 100% customer satisfaction guarantee and 24-hour emergency services. Up Front Pricing - You approve the cost before we start the work. We charge by the job, not the hour. No one wants surprises when the job is done! Fast Service, Emergency Service. Radio Dispatched, Fully Stocked Trucks in Your Area Daily. When you have an emergency, you need to know it will be fixed in a hurry. We understand and can be there within hours not days! Trusted and Recommended ,Call Us Today!

Sosso Remodeling
5.0(
18
)

Serving Mililani, HI and surrounding areas

"I’ve hired Soso Remodeling for various projects over the years, including kitchens, bathrooms, decks, and porches, and I’ve never been disappointed with Octavian's workmanship. Each project required different materials like ceramic, porcelain, marble, quartzite, and other natural stones, along with unique layouts, and Octavian has handled everything with expertise. Communication has always been clear from the start, which ensures there are no misunderstandings or issues during the project. I’ve always been impressed by the quality of his work, his attention to detail, and his ability to adapt to the specific needs of each job. I’ll definitely hire Octavian again and highly recommend his services to anyone looking for quality remodeling work!"
Recommended by100%of homeowners
Avatar for Little Big Plumbing LLC
Little Big Plumbing LLC
4.9(
21
)

Serving Mililani, HI and surrounding areas

In business since 2009

Free estimates

Emergency services offered

We are license, bonded, and insured with over 15 years experience in all aspects of plumbing. We take pride in our work and it shows. Please don't hesitate to call. It is the little things that make the big difference. SECOND LINE IS FOR EMERGENCIES ONLY.

Recommended by100%of homeowners
Avatar for Greekz Plumbing LLC
Greekz Plumbing LLC
4.8(
83
)

Serving Mililani, HI and surrounding areas

In business since 2006

Free estimates

Emergency services offered

"These guys suck. I had a complete kitchen remodel. I hired Stephen to do the rough plumbing before the cabinets and countertops were placed. He did that job adequately, although the price was exorbitant. I then needed him to come back for the finish installation of the sink, grinder, dishwasher, and cooktop. He had no clue who I was or where the job was, and this was three weeks after he did the rough work. After I reminded him where the job was, Stephen and his partner showed up half hour after he said he would. The did less than half the work, and then vaporized. He failed to call back. Now I've got to find another plumber to finish the job, and probably will get a hefty bill for the hour work that he did today. Totally unacceptable. This guy has no idea about customer service."
Recommended by91%of homeowners
Avatar for Steve's Plumbing & AC Service - Oahu
Steve's Plumbing & AC Service - Oahu
4.6(
25
)

Serving Mililani, HI and surrounding areas

In business since 1986

Free estimates

Emergency services offered

"If I could rate Steve's Plumbing zero stars, I would. Terrible Customer Service. 03/07/2026: Called Steve's Plumbing to unclog my kitchen drain. The technician arrived and unclogged the drain by running his auger in the condo's main (common) drain pipe. I attempted to get reimbursed from the AOAO for the cost of the invoice. My claim was denied because the description of work performed did NOT note that the auger was inserted in the main (common) drain pipe. I called Steve's Plumbing to have the technician to specify the fact that he did insert his auger in the main (common) drain pipe. Six times, I called and was always told that someone will call me back and no one ever did. 03/20/2026: Called Steve's Plumbing to obtain the Customer Service Manager's name and mailing address. I or my attorney was planning to send her a written request detailing the work performed. This evening, I received a call from Steve's Plumbing from a very rude person that did NOT identify himself. I explained"
Recommended by80%of homeowners
Avatar for Virtues Plumbing LLC
Virtues Plumbing LLC
5.0(
7
)

Serving Mililani, HI and surrounding areas

In business since 2021

Free estimates

Emergency services offered

"Virtue's Plumbing came out without a long wait. They did what their estimates said they would do. They were affordable. Reliable and responsible. I love my new tankless water heater."
Recommended by100%of homeowners
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FAQs for plumbing installation for a remodel or addition projects in Mililani, HI

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 Mililani, HI 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.