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    YC Builders

    4.7 (14 reviews)
    Open • 6:00 am - 8:00 pm

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    Response time

    10 minutes

    Response rate

    100%

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    Reviews With Photos

    After photo of the repair
    Christopher M.

    I had a stanchion that needed to be replaced. They replied on Sunday and came over and took care of it. The photos show the difference. I would use them again. Mark was very friendly and kept me informed of the job.

    Remove window to downstairs wall, WIP for skylight, WIP large window
    Jennifer L.

    We asked Mark to help us renovate our nursery. This room was very dark with single paned walls, and a wall that had a window connecting to downstairs. We asked for a skylight, remove the window to downstairs, replace other window with larger window, make the walls double for shelving, remove a closet, add dry wall, and prep room for us to paint. They showed up around 8am every day, added paper to the floor to keep the house clean, worked very quiet, and completed the job in a couple days! There was a miscommunication once and they renegotiated so we only had to pay for materials, but removed a ton of dry wall and redid some of the walls to have shelving. I really loved working with Mark and his crew because they were nice, fast, and did a great job - we got tons of quotes and everyone was around 15K, then Mark gave us a quote of 6K and I'm glad we took the risk (because I didn't see any reviews on Yelp) because they did a great job! I would absolutely hire them again in the future when we renovate the rest of our house. We were able to save a ton of money that can be used on the baby and other nursery renovation needs. I'm just extremely grateful for Mark and his crew because the price was fair, they were professional, and I appreciate how quickly they got the job done. Thank you Mark! I hope this review gets you more future clients - you and your team are awesome!

    Old kitchen

    I would highly recommend YC Builders. From beginning to end, Mark was amazing to work with. He clearly explained every step of the process and the work being done. His communication was outstanding--he was always available by phone or text and consistently worked around my schedule, which I really appreciated. Mark also coordinated directly with my building's management company, making everything incredibly easy on my end. The entire process felt seamless. He completed the work incredibly fast, allowing us to move in much sooner than expected. Most importantly, Mark truly listens. He works with you to understand your needs and helps guide decisions around design, cost, and the overall scope so you get what's best for you and your family. Absolutely recommend!

    New with safety bats

    Mark was unbelievably helpfull. Remembered what I wanted from last year. Helped pick material with us. Very professional. Finished shower and toilet in 2 and a half days, while other contractors said would take a week. Shower is beautiful way better than I thought. I recommend them highly.

    Mark and the YC Builders team renovated our master bathroom. From the start Mark was attentive, friendly, responsive, and such a positive person we decided to go with YC Builders and we are so happy we did. The bathroom looks absolutely stunning! Renovating a bathroom from its original form since 1992 was a huge task which YC Builders met and exceeded. From the Tub removal to relocation of plumbing, new window install and cabinet/sink/countertop upgrades, the end result was absolutely amazing. Mark and team also opened up the space to afford more lighting, again with outstanding results. The team arrived daily on time, and was thoughtful to provide protection to the flooring, and cleaned up daily any residue from the demolition and installation. Mark and YC Builders has our absolute trust and the value of the work was also outstanding. I will definitely trust YC Builders for any future General Contractor jobs.

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    Ask the Community - YC Builders

    Hi do you folks do free quotes?

    Yes, we do , please feel free to call us anytime ! Mahalo

    Don’t See Your Question? Ask Away!

    Review Highlights - YC Builders

    “I've worked on projects with Mark extensively and have seen his dedication to his craft and delivery a final product that exceeds expectations.”

    Mentioned in 14 reviews

    Read more highlights

    Steve’s Plumbing & A/C Service

    Steve’s Plumbing & A/C Service

    (1.1k reviews)

    I'm giving this company a 5 star review, mainly, because the plumber who came to fix my issues did…read moreso professionally and expediently and brought a huge amount of ALOHA with him! I did try to fix the issue myself but gave up. A huge shout out to Kekoa Tapaoan for doing an amazing job. Yes, it was pricey, much more than expected. But the repairs are sound and I was pleased at his plumbing expertise. The negative reviews are mostly about price and yes, the price was high, but I needed it done and approved the cost prior to him moving forward. Will I use probably use Steve's again. Mostly because they are quick to respond and efficient. But if it is a big job, I might get a second quote.

    Plumbing repair by Steves plumbing. Water is leaking from my…read moreshower so i contacted steves plumbing and they showed up promptly, while checking the fixture the tech checked the water pressure which was over 200 psi. He said i need to change the prv valve before any repairs could be done as the water pressure should be around 60psi. I have changed the prv in the past, about 4/5 years ago so i told him to go ahead and change it as im pressed for time havjng to work and prepare for the incoming typhoon. He didnt have a valve so needed to go to city mill to get one which they had in stock. The total repair came out to $4100, of which and i'll break it down cost wise. Costs gotten at a consumer pricing from Home Depot Now mind you this is the retail pricing for an normal consumer, not professional pricing (what you or i would pay if going into the store) Prv valve $89 5' length 3/4" copper pipe $50 Fittings $50 Ball valve shut off $ 19 Total of parts $208 $4100 minus the parts needed $208 $3892 labor 18 minutes to complete the repair, say 30 to make it easy $7784 in labor charge per hour I guess i should have purchased a solderless crimper and done it myself for a savings of $3900 Work was done professionally and quickly as promised and the area cleaned up before completion but the labor cost is whats bugging me- guess i got into the wrong profession

    Allens Plumbing

    Allens Plumbing

    (188 reviews)

    Outstanding Service from Start to Finish!…read more We recently had a HALO H2Zero Ultimate whole-house water filtration system installed by Allen's Plumbing, and the entire experience exceeded our expectations. From the very first phone call, Corrine was absolutely wonderful. She was incredibly kind, responsive, and professional, making the scheduling process easy and stress-free. In today's world, it's rare to find someone who communicates so well and genuinely cares about the customer experience. Our technician, Ty, was outstanding. He took tremendous pride in his work, patiently answered all of our questions, and clearly explained the system, maintenance requirements, and warranty. His craftsmanship was exceptional. The copper piping installation is clean, organized, and looks like it belongs in a plumbing showcase. You can immediately tell that Ty values doing the job the right way rather than simply finishing it quickly. We invested in a HALO H2Zero Ultimate system with a Sediment Guard pre-filter, and Allen's Plumbing installed everything beautifully with bypass valves, high-quality copper work, and a layout that will be easy to maintain for years to come. What impressed me most was the professionalism of everyone involved. From Corrine's communication to Ty's workmanship, the entire team demonstrated honesty, expertise, and genuine pride in what they do. If you're looking for a plumbing company on Oʻahu that shows up, communicates well, and delivers top-quality workmanship, I highly recommend Allen's Plumbing. They earned our trust, and they'll be the first company we call for any future plumbing needs. Mahalo to Corrine, Ty, and the entire Allen's Plumbing team for a fantastic experience!

    Adulting definition: the practice of completing the mundane, responsible tasks expected of a fully…read morefunctioning grown-up. As a home owner you have a lot of responsibilities where you need to juggle many responsibilities such as but not limited to finances, insurance, property taxes, preventative measures and maintenance. The other week I wasn't feeling well and stayed home from work which ended up a blessing in disguise as I had a leak in one of my 50 gallon tanks. I noticed the leak from the night before where I shut all but one valve and turned off the electric breakers. As water leaks can lead to property damage, I had to immediately get a plumber as I'm not a DIY person. I reached out to my BIL where he recommended either Allen's Plumbing (AP) or Roto Rooter. I decided to first check AP on Yelp and saw low ratings from good friends of Peter Y. and Victoria A. It's unfortunate my friends had below average experiences with AP where I was skeptical. But I trust my BIL and took the leap of faith. AP is a local company that started in 1982 servicing 24-hour service to both Oahu and Maui. The process was simple and efficient. I called first thing on a Friday morning and after addressing my issue, I was advised their plumber can be at my home at around 11am. Their dispatch contacted me a little before 11am to inform Jonah, their plumber, is on his way and arrived at about 1120am. After the assessment, it was determined that one of my hot water tanks had both internal and external leaks. I was provided an onsite quote of replacing the tank, installation, labor, parts, and disposal of the old tank. I was forewarned by my BIL of the higher than usual quote with AP, but trusted the integrity, service and professionalism of AP and agreed to the proposal. After committing to the quote, staff went on the road to secure my water tank replacement and came back about an hour later. This allowed me some time to clear the area and place more towels on the floor as water accumulated. When the staff returned, I advised them to use the side gate for a much easier access to the wash room. Luckily it was a breezy and sunny afternoon, ideal conditions in transporting the water tanks and installation. It took about 3 hours for Jonah and his colleague to disconnect and remove the damaged tank and install the new tank. I'm no expert in this field but waited patiently as I do have solar panels which perhaps caused extra steps in removing and installing. When I saw one of the staff load a box with the leaking water tank into their van, I sensed the task was soon to be completed. Prior to Jonah leaving, I did also mention my sink fixture in one of the bathrooms needed to be replaced where he also gave me a quote. It was already late so it was agreed I'd be calling back once I've made arrangements to have my sister house sit for me due to my work schedule. I paid my bill in full and the boys left my home. I had some minor tidying up to do as the laundry room floor was still wet. Overall, an amazing first experience with AP where I'd be sure to contact them again. I am impressed of their service, professionalism, dedication and knowledge of their industry by providing the service to get the job done. Note that due diligence is also required by the consumer. Highly recommended.

    Legacy Plumbing - The failed PVC-T. I asked Legacy for a copper T-fitting to replace this so that I wouldn't have problems in the future.

    Legacy Plumbing

    (76 reviews)

    Nuuanu

    Lyle and crew are the best! Sewer line was backing up and overflowing from the outdoor cleanout…read more He and crew identified the problem and scoped the line finding a collapsed cast iron pipe. Lyle is a professional and realizes all options for the homeowner. His work crew, like himself, is respectful, diligent, honest and thorough in their work quality. My project was not an easy fix, required rerouting and breaking a small portion of concrete foundation to create a brand new sewer line to alleviate future problems. There were other options on the table, more expensive and not reliable. Lyle and crew eased my mind and assured the rerouting is the best option and alleviate future backups. I am VERY happy and encourage anyone looking for a good plumber with his skill levels, call Lyle! https://www.legacyplumbingoahu.com/

    Used Legacy Plumbing for a small repair job in my condo. I know it wasn't a big job so normally it…read morewould be just thank you and see you later. What I really appreciated though was Kevin and his partner; their professional aloha spirit. Had to call them after they had finished and left and also paid. This was about 1/2 hr after because I noticed a slight leak by the repaired area. Instead of giving me the runaround, Kevin asked me to send a pic and shortly after said I'll be back in 30min. Came back, did the repair, and courteously took the time and effort to put me at ease. I support local businesses and gauge their quality a lot on their service qualities, especially when sometimes a job does not go 100% perfect. For sure, I support Legacy Plumbing!

    YC Builders - contractors - Updated October 2026

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