Koan Builders is located in Salt Lake City, Utah providing residential and commercial concrete and excavation services along the Wasatch Front. From digging and haul off to footings and foundations, pads, driveways, and stairs, we can accommodate your needs. Â
We simplify complex projects for general contractors and homeowners by working with you to identify and solve your project’s issues and by coordinating with tangential trades to smooth the complete building process.
We only use the highest quality materials from concrete suppliers like Geneva Rock Concrete and Staker Parson Ready Mix.
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We are fully licensed and insured contractors.  Reach out with any questions or for a quote today.Â
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Field Contact (Dave): 801-300-5454
Office (Keelan): 801-413-3757
Email: team@koanbuilders.com
Team
Dave
With over 15 years in the construction industry Dave knows how to efficiently deliver the highest quality finished product. He is an expert concrete finisher personally as well as leading teams on large installations.
Keelan
With a career in Data Engineering, a background in Finance, and a love for building, Keelan brings a passion for running efficient, customer-centric projects.Â
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Joshua Siano
01:20 28 Sep 24
Dave Koan did an amazing job for us in 2024 – our slab is beautiful and he was able to fix all our design problems on the fly – we highly recommend them!
Carol Ann Kotsenburg
02:17 27 Sep 24
Dave and his crew were wonderful to work with. Dave helped with some design issues and offered wonderful solutions. The crew cleaned up after themselves. The only trace they were there was this beautiful new walkway and stairs.
John Watkins
15:10 05 Jun 24
OMG, the driveway looks fantastic. David and his crew were timely, fair, and thorough. David treats his employees like he does his customers: with respect, kindness, and honesty. He gets in there and works side-by-side his workers, always a good sign. The amount he charged was fair. I have dealt with contractors in the past, David Koan is the very best . I cannot recommend him enough.
Steph Anderson
15:59 19 Mar 24
Koan excavated my old garage foundation, built my new garage foundation, and installed french drains to help with the drainage around my garage. Koan did an incredible job. Their work product is top notch. Dave and Keelan are both good people and great to work with. They’re communicative, organized, professional, and trustworthy.Dave is meticulous, thorough, and very thoughtful about every aspect of the job onsite. In addition to the garage, Dave highlighted some water drainage issues on my property and recommended ideas to prevent future problems. The crew was hard working, efficient, and respectful.My job created a huge mess between the demolition, rain, and snow. The crew cleaned up every day so my neighbor’s couldn’t complain.I would highly recommend Koan to anyone with a concrete need. I will definitely use them on future projects.
Susan Gorey
12:41 17 Oct 23
I highly recommend Dave Koan and Koan Builders. My HOA worked with Dave to repair a shoddy job left incomplete by another contractor. They did saw cutting, poured concrete, and repaired cracked concrete. Dave communicated well, met timelines, and provided an excellent work product.
Andrés Orozco
14:15 06 Oct 22
Great experience working with this company. They are attentive and go above and beyond to make things right. They built my foundations for an addition and ADU as well as poured a new cement porch. They are amazing problem solvers, who always honor their quotes-even when they have to take a loss. You just don’t find people like this anymore. We are really happy with their work and recommend them to anyone.
Silver Sage Xeriscape & Design
17:53 22 Sep 21
Did concrete work on a project we were installing and was great to work with! The concrete turned out great and our client was very happy!
Donna Kane
23:44 08 Jun 21
Dave and his crew from Koen Builders have done several jobs for us. First was a driveway and sidewalk. Next they poured an RV pad. Lastly they created a beautiful concrete patio in the backyard. The patio was a huge project which included new roof support beams, a tear out of our old concrete patio and a new colored poured patio. Prior to the new patio we were constantly plagued by rain water coming into our basement. Dave and his team designed and installed a French drain system. No more water problems!! They did a phenomenal job! We were impressed how quickly all jobs were completed. We highly recommend Koen Builders. They are fair, trustworthy and efficient. Photos attached are of the driveway and the backyard patio. Well done Koen Builders!!!
Ryan Evans
23:11 08 Jun 21
David is one of the most honest, and hard working contractors I have ever dealt with in my 12 years of construction. If you are looking for someone who will make sure to get the job done(and done right) then this is the guy for you.
Salt Town Realty Annie Trujillo
23:24 10 May 21
These guys are top notch- they are definitely who you hire if you are a little picky about everything like me as their quality is exceptional. My concrete was done in a timely manner, it was graded properly to allow proper drainage, it’s just smooth and gorgeous. Highly recommended. Plus they are just cool normal people as well who strive to do a good job.
Mary Harrison
18:04 18 Jul 20
Dave and his crew were professionals from start to finish. The work was terrific and there were no surprises. Communication was great.
Deborah W
19:35 16 Jul 20
Recommended to me by a friend in the construction business, Koan Builders exceeded my expectations. They showed up on time, worked very hard, finished on time and did a fantastic job. David was patient as we worked out the not so straightforward details. The work scope increased mid-job, due to impossible to predict situations, but the additional cost was more than fair for the work that was added and it was all discussed as we went. No surprises. I will totally use Koan Builders for my next job and highly recommend them.
Bryant Bergman
20:07 08 Oct 19
Koan did a great job helping us finish our landscaping. They added onto our driveway, built a retaining wall, and poured new pads in our backyard. The pricing was great, the price was exactly what was quoted, they were great about communicating, and they made every timeline estimate.
Justin Lutz
20:59 09 Jul 19
Dave and the team are pros! In 5 days (over the 4th of July holiday nonetheless) they excavated my old driveway/garage slab, prepped for a new driveway/slab, poured both, and laid conduit for my underground electrical and communications cable. I am really happy with the final product and highly recommend them.
Licensed and Insured:
Contractor’s License: 11211854-5501
Business Registration:
Entity: 11197399-0160
Koan Builders, LLC
Salt Lake City, UT