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FeaturedConcrete & Masonry Contractors in Mount Vernon, Washington

Twelve Stones Construction, Inc

Top Spot in Mount Vernon Today 5.00 (13 reviews)(360) 661-5887

Twelve Stones Construction, Inc

Twelve Stones Construction, Inc is a concrete contractor established in 1999. It works with homeowners in Skagit County on residential concrete projects.

Last Updated October 3, 2026.

Business Highlights
  • Family-owned and operated.
  • Fully licensed, bonded and insured contractor.

Service Area

Snohomish, Whatcom and Skagit Counties.

Featured Local Business

Twelve Stones Construction, Inc is one of 7 concrete & masonry contractors ProsGrade lists in Mount Vernon, Washington.

Featured
Featured on ProsGrade
Listing details

6 services listed, including Residential upgrades, Commercial and industrial concrete and Structural foundations. Open weekdays, closed on weekends. Rated 5.0 from 13 reviews.

  • Verified listing details
  • Service information
  • Customer review signals
  • Photo gallery
  • Public contact information
  • Published local profile

How This Business Compares

How Twelve Stones Construction, Inc compares with the other 6 concrete & masonry contractors on ProsGrade in Mount Vernon, using public Google ratings and review counts.

  • Ranks in the top half of the 7 Mount Vernon concrete & masonry contractors on ProsGrade by Google rating and review volume.
  • Rated 5.0 on Google, well above the 4.6 average of other Mount Vernon concrete & masonry contractors on ProsGrade.
  • One of 5 Mount Vernon concrete & masonry contractors on ProsGrade rated 4.7 or higher from at least 10 reviews.

Services Covered

6 services
  • Residential upgradesGarage slabs and retaining walls.
  • Commercial and industrial concreteCurb and gutter, parking areas and industrial slabs.
  • Structural foundationsSlabs-on-grade, crawl spaces and custom structures.
  • Concrete flatworkDriveways, sidewalks and patios; high-PSI mixes and strategic expansion joints.
  • Decorative concrete finishesStamped, stained and exposed aggregate concrete.
  • Concrete repair and replacementRemoval, haul-away and professional replacement.

Reviews

What customers say

Customers praise the concrete results and say the team is easy to work with. One customer described a smooth, professional process from quote through completion, while another praised a stamped-concrete patio and meticulous crew.

Customer Reviews

David Ng

Jim and his crew did an amazing job! Great pricing and easy to work with! Thanks Jim & crew! A+. Highly recommended. If you need any demo or dirt work, make sure to reach out to Bill @ SHARK ROLL OFFS.

Sepideh Kittleson

I don’t usually write a public review to be honest but I feel like this company (Twelve Stones) deserves to be known in case someone else is in our shoes and in need of concrete work. Here is the backstory in order for you to understand what we went through BEFORE we found Jym. We’ve been in search of someone to do our concrete work (250 sq. ft indoor concrete poured in) since mid-February. After being stood up multiple times by a couple of contractors, we decided to go with a highly recommended local company that does concrete work. After all, since so many people were raving about this company on the local FB page, it must be good, we thought. Long story short, they never showed up to do the job. So 2 months later, we were back to square one, finding a reliable concrete guy. I am SO happy we gave Jym a call. He showed up last week to give us a quote and communicated with us exactly when to expect him. Yesterday he confirmed that he’ll be coming in this morning and he showed up promptly on time as promised (7:15 am) and did an amazing job. He honestly restored our faith in contractors because up until last week we were not sure we could get someone to actually show up when they said they’ll show up and do a good job on the work. Everything from the time we met Jym for a quote to finishing the job was very smooth and professional. In person Jym is very personable and nice. He took his time explaining everything and answered our questions and even went out of his way to help us choose the flooring etc for our project. We will definitely call him up again for future projects and recommend him to all of our families and friends who need concrete work done. Honest and reliable local companies like this one need to be recognized in my opinion and I hope I’ve done my share in spreading awareness. We couldn’t be happier! Thank you Jym!!!
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Nick Smart

We had a small project 350 sq ft. Jym came to quote it on the same day he lost his father. How’s that for customer service. His team was great, they were meticulous and loved what they do. And he came in almost a grand under what the original estimate was. To top that off my new stamped concrete patio looks amazing. When you meet Jym you’ll know why his customers love the guy. Jym bbqs this summer dude.
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Joe Horrell

We had an incredible experience working with Jym and his son to pour a new basement floor and exterior pad for us. I had been struggling to get good advice and find a good contractor for the work, and from the very beginning Jym struck me with his honesty and professional take on everything. When it came to performing the work, Jym knows both the science and the art of pouring concrete... he uses techniques that only someone with a passion for trade would take the time to learn and hone, and the results speak to this. We couldn't be happier, and will be recommending him to anyone who asks.
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Steve Melton

Being a general contractor, i have used Jym Cook and his crew at twelve stones many times. For foundations, retaining walls and flat work. They are the best I've seen. Easy to work with. Very knowledgeable. Product has always been clean, plumb, square and precise.
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Frequently Asked Questions

Does Twelve Stones Construction provide a site evaluation before estimating a project?

It offers a no-obligation site evaluation intended to produce an accurate estimate tailored to the property.

How does Twelve Stones Construction handle project timelines and costs?

The company says estimates cover timelines, materials and costs, and that clients are kept informed throughout the project.