Jeremy came to look over my home and give me an estimate on stabilizing my foundation. He was here…read morefor over 2 hours initially and was very detailed. The other places wanted me to hire an engineer (over $6k) to diagnose the problem. But Jeremy did that at the beginning. I don't know anything about this process, but I trust these guys did a great job. The workers came in a timely manner, stayed working under my house for about 3 days. I could hear them laughing and enjoying their work. Great guys, good attitudes and worked hard. Took pictures, I forgot to save. But they drilled and put push piers in and used something to shoot into the cracks like a steel cement. They had affordable pricing and as far as I know did a great job to stabilize. I'm glad I went with them.

After heavy rains & flooding we experienced over 20+ years ago, the foundation shifted under our…read morehouse that threw off doors not closing well & flooring splitting. Our insurance did not cover the damages or cost to fix. We finally were able to get some financial help last year to address some major issues for our 1990 home. Foundation Support Of Hawaii, was a God sent! They literally came to our rescue! Jeremy did the initial walk through of our home, and worked out a plan & affordable cost. Renee was the next person to contact me & she had been a pleasure keeping me updated & informed of the cost & payment plan. Then came the hard workers/crew from Foreman, Raymond "Augie" Augustin, to the crew made up of Gabriel, Russell & "D" Duane! The crew was always on time and kept in touch with me. I most appreciated that "communication" was always there! They were very friendly to me and my whole family & very respectful, hard-working and fun! We appreciated all the work, skills, and expertise of their craftsmanship! They always explained what they were doing and asked if we had any questions or concerns. We have so much Aloha & Gratitude for them. Great work, guys! "Mahalo Plenty", from the Richards-Fung Ohana of Waimanalo.

Great from start to finish. Based on the stellar reviews I…read morecalled and Matthew came out to provide an estimate. His proposal was clear and competitive. Seemed confident they could finish in one day. Matthew was very accommodating in meeting with the neighbors to assure them there would be minimal impact/disruption to their properties. There was a mixup in the lift provided and they needed a bigger lift. Matthew assured me it would be fixed at no additional costs to us. Thank you Matthew. Justus, Loa, Kaipo and Karl, were on site early to start on the project. Once the machinery issues with the lift were solved, they had the project done in a couple of hours. Took me up close to inspect the work and fixed another spot that was bothering me. So good to have this done. Want our building to last another 20 years and I feel this repair will insure this doesn't happen again. The crew had a lot of pride in their work. I totally recommend these guys to do a great job to your satisfaction.

Amazing job! Highly recommend. Golfers they gave us a great estimate and to complete the job on…read moretime! Finding somebody to do this type of work is difficult so again we highly recommend them.

Structural Systems did an outstanding job repairing our foundation in Palolo. After discovering…read moreseveral cracks that posed a safety concern, we reached out to them and started the process with Johnny. He was incredibly friendly, approachable, and answered all of our questions with ease. Once we had the structural design upgrades, Damien and his team went above and beyond to find cost-saving solutions that maintained the home's integrity. The crew worked diligently--even through the rain--and left the site clean. They even used the displaced rocks to build us some beautiful rock planters! Thank you to Damien, Johnny, and the entire Structural Systems team for a job well done.

Let me just start by saying the condo I live in made the choice to hire these guys. They have been…read moreworking on the bulding from 1/1/2024, yes 2024, to November 2025. They were scheduled to complete the spall repairs, painting and tile in the lanais only, Is the work supposed to take this long?! We have 10 units on each floor and there are 22 floors. We were told to remove everything off our lanai in July 2024. They never got to my unit until right before Thanksgiving 2024. Mind you, I had lanai furnishings taking up space in my living room that entire time AND I was only able to put them back on the lanai after Christmas 2024, Didn't even have room for our Christmas tree. Additionally, they came back in July 2025 to paint the lanai. I had to call them to clean up the concrete left all over the lanai and it took them a couple weeks to send 2 guys. When they finally came back, these 2 guys didn't have the right "concrete cleaner" and had to come back another day. They took half a day and it still isn't as clean as it was before they started the spall work. The only saving grace is that the workers I've had contact with are friendly and respectful when interacting. Now we had to remove everything from our lanai again because they were going to redo / update the tiles. So many residents complained about the work, the cleanliness and the rate of completion it took! We had to have a special resident meeting about it. Hope they never call this company again!

I needed to get rid of my beautiful tree, just many leaves that I didn't have time for. Place a…read morecall to Sam and he responded within an hr. He was able to come to inspect the tree the next day and meet me the following day for the work. He gave me a great price and took care of the tree within hrs. Sam and his crew are such efficient workers. Basically took my problems away, literally. Great Job Sam!

Excellent contractor with expertise in concrete, masonry and metal work/welding. Sam and his crew…read moreexcavated and replaced a badly cracked driveway, shored up a cracking retaining wall , put in a trench drain in front of the garage and refurbished a badly rusted metal fence with new pickets and posts. Crew was always on time, hard working, and conscientious. Pricing is fair and reasonable. Communication was excellent. They go the extra mile to make sure the job is done right, no cutting corners.

I called Will for his opinion on a property that I am helping a buyer purchase in Manoa. The home…read moreis perfect for my buyers, a Realtor's dream sale. The sellers remodeled the 1930's home and did a great job solidifying the foundation. Because the home was built long ago, we needed an expert 2nd opinion. Will took off of his busy schedule to do a walkthrough with my buyers and I. He did not just say, "looks good to me." He took the time to look at the pictures that I sent to him prior, then come and walk outside the home to look for an structural issues. Then when we viewed underneath the home, he gave us a detailed opinion. My buyers were extremely happy to get Will's opinion and they now have a peace of mind that their "Forever Home" is safe. Thank you Will! And by the way, he did not charge any type of fee. As a realtor, I need awesome people to refer to other people and I will be referring Will and Gundaker Works to anyone who needs his company's service.

(-5 stars). Contract job. Cover-up work not done as contracted. Daily Sloppy, messy job site…read more Refused to correct Inadequate barrier plastic that didn't protect property from dirt & debris. Caused property damage.

Both Dave and Scott were as professional, punctual, honest, and hard working as could be. I could…read morehave not hoped for a better, more reputable concrete contractor! They were on time, didn't miss an appointment, gave me a head's up when the weather didn't allow them to pour the concrete, and did the job much faster than the other contractors at a price much lower. They are also licensed which gave me piece of mind. There was a contractor prior to them that took my deposit and ran off with it without doing any work. D&S restored my faith in the fact that there are still reputable, honest, and well qualified contractors out there that do a terrific job. Please use them and you will not regret it.

All i can say is id definitely recommend D&S for all your masonry needs. Solid, professional, and…read moregets the job done right. Huge Mahalo!

Had Mafua Masonry pour a concrete slab for our pergola and a curb for a flower garden border. They…read moredid a great job and we are very happy with the result! Will be using them for any masonry needs in the future.

From the owner: Any type of masonry work, including CMU rock walls, cement work, and custom projects. read more