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    Gundaker Works

    4.5 (13 reviews)
    Closed 7:30 am - 4:00 pm

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    Services - Gundaker Works

    Balcony addition

    Bathroom remodeling

    Building additions

    24 More Services

    Deck construction

    Foundation construction

    Foundation repair

    Foundation replacement

    Garage remodeling

    Kitchen remodeling

    Guest house or ADU construction

    Detached garage construction

    Manufactured home construction

    Modular home construction

    Single-family home construction

    New structure construction

    Pool installation

    Pool remodeling

    Pool repair

    Remodeling

    New room addition

    Bathroom addition

    Bedroom addition

    Common area addition

    Garage addition

    Kitchen addition

    Laundry room addition

    Structural repair

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    Concrete retaining wall & chain link fencing for community garden and food distribution

    Will, Mark and the rest of the team from Gundaker Works has been incredible to work with! They have exceeded our expectations in every way and we can't recommend them enough for any job big or small you may have. Mahalo nui to the Gundaker crew!

    Rachel R.

    In February 2016, we lost our North shore seawall due to extremely high surf. Our beach home that our family had since the 50s was literally hanging by a thread. I contacted multiple companies and had them come and look at the house and the wall. No one wanted to take the job. Structural Systems Inc. recommended I call Will from Gundaker Works. I got a hold of Will and he was at our beach home at 6:30 AM the next morning. Will looked at the damage and told me that he and his team could help. I was in tears! He immediately mobilized a team and started bringing down equipment and supplies to help save our house. It was the day before the 2016 Eddie Aikau was held at Waimea Bay and we had a very short window to save our house and prepare for the high surf that was slated to hit the north shore that very night. With the leadership of Will, Mark, and the help of their team along with our neighbors, they saved our house that night! Gundaker Works repaired our wall and our home to make sure that this would never happen again. Will and his team are a class act. Very experienced and made it all easy for me. They constantly communicated with me and helped me navigate the permitting, regulations and the insurance claim process. They worked within my budget and always offered options for me to choose from. The Gundaker Works is like family to us and we will never go with anyone else. Not only are they extremely talented but they are overall great people to work with! We HIGHLY recommend them!

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    8 months ago

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    William G.

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    8 months ago

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    4 years ago

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    4 years ago

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    5 years ago

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    4 years ago

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    7 years ago

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    4 years ago

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    Ask the Community - Gundaker Works

    Review Highlights - Gundaker Works

    My buyers were extremely happy to get Will's opinion and they now have a peace of mind that their "Forever Home" is safe.

    Mentioned in 6 reviews

    Read more highlights

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    Neptune Pool and Spa Service

    (13 reviews)

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    Quick and Easy to work with…read more When our spa pump shut down, we didn't know what to do or who to call. We called Neptune Pools Oahu and Marcelo came the same day to survey the work. We received a reasonably priced quote the following day. Three days later our pool and spa were in working condition. He even made the pool more energy efficient, saving us money on the electric bill, and organized the electrical wiring. 5 stars in customer service, they will be our go to company moving forward. Don't wait, you won't be disappointed!

    I shared my experience with Neptune pools in my first review. Marcelo, the owner replied and…read moreconfirmed that he didn't send his worker in to service our pool because of flood. Well the flood was in February not in March. He is right! He didn't service my pool in February, but he didn't service it in March either. They pre-invoice for the month and they are very aggressive in collecting the payment before you even do the work. So you know, even doctors bill after they treat the patient. Your worker told me, and after I tried to get hold of him that he was on his third vacation and that his boss, Marcello will cover for him. He didn't. This company charged me for two months and didn't service my pool. I need to received a refund for both months, February and March. I did not cause the flood and since you didn't do the work you must send me a refund check for both months $418. Neptune pool is a perfect company that district attorney needs to be make aware of. If they cheat their best paying customer, God knows what they do to the government. I will take that step to protect the public. Dishonesty is not allowed. Refund please.

    Tall Builders - Hawaii's Best 2025

    Tall Builders

    (41 reviews)

    Downtown

    We had Tall Builders build our pool plus other very significant changes to our backyard, and I have…read moreto say the entire experience exceeded our expectations. From the very beginning, they were easy to work with and kept us informed every step of the way. The office team--Azel, Mari, and Alorah--were always patient, responsive, and a pleasure to communicate with. Katie made sure everything came together beautifully, and Viktor, Meny, Chad, and the crew worked incredibly hard and took real pride in their work. By the end of the project, they didn't feel like contractors anymore--they felt like part of our family. The best part now is seeing our family, most especially our 3 grandkids enjoying the pool so much -- which was the main reason we decided to build it. And all of these will not be possible without the support and affirmation of my "queen", who is truly happy with the outcome... and when she's happy, everyone's happy I did come across some negative reviews before we started, but that wasn't our experience at all. We were treated fairly throughout the process, and communication was always clear and consistent. If you're looking for a contractor you can trust and feel comfortable with, I'd absolutely recommend Tall Builders. Good people, great work. Mahalo, guys! Looking forward to the next project (our bathroom and Kitchen renovations)

    Definitely on the high-end price wise. I had other installations priced and they were half the cost…read moreof this company! Although $20,000 is their minimum before they'll take on your project! I got mine done for $5700. Their estimate was $40,000! I also asked for detailed breakdown of labor versus material and I'm still waiting after two weeks for this request!

    Gundaker Works - contractors - Updated May 2026

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