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Serving Washington, Oregon & Idaho Commercial Construction

From renovations and tenant improvements to new construction, our commercial construction team specializes in projects of every size, style and budget. Let us help you create the perfect space for your business.

Start fresh with our new construction services. We turn concepts into reality, delivering practical and innovative designs for your commercial space.

Modernize your commercial space with our renovation services. From aesthetics to structural updates, we bring new life to existing structures.

Optimize your property with tenant improvements. Tailored solutions meet your business needs, ensuring a space that evolves with you.

Discover the strength and efficiency of steel buildings. Ideal for industrial, retail, or office spaces, our structures offer durability and practical design.

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Working with CTC From Initial Design to Final Build, We Do It All

  • Estimating

    Estimating projects in a way that meets our clients' needs, including lump sum/stipulated sum estimates, budgetary estimates, design-bid-build estimates, and cost plus bids.

  • Pre-Construction Consulting

    Engaging with the client and design team early and often to establish a collaborative environment that allows us to align expectations and maximize value engineering.

  • Planning & Scheduling

    Meticulously planning, organize resources, and employing effective communication strategies to keep the project on track and within budget, with everyone in the loop.

  • Project Management

    Overseeing the budget, determining the constructability of architectural designs, reviewing change orders, and ensuring adherence to the construction documents.

Schedule an estimate today!

Building Communities One Project at a Time

As a small, locally owned, and family-run business, we take immense pride in our roots and the communities we serve. Our commitment goes beyond bricks and mortar – it's about creating spaces that stand as a testament to our dedication to excellence and genuine care for what we do.

Michele's Event Center
Allegre Apartments exterior
Gesa Credit Union
Metro Mart
Allegre Apartments

No Project is Too Big or Small Commercial Construction for All Markets & Industries

We believe that the success of a project is measured not just in bricks and mortar but in the satisfaction and trust of our clients. We are proud to take on commercial construction projects of any size, scope, and budget across a variety of industries and markets—every project is an opportunity to make an impact. From new construction to remodeling to tenant improvements and even steel buildings, we are here to build lasting relationships within our community through our work.

Retail & Shopping Centers

Restaurants & Food Service

Industrial

Multi-Family Housing

Office Buildings

Medical Facilities

Hotels

Roads & Outdoor Spaces

Ready to get started?

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Paul Smith
May 2, 2021

CTC converted the master bathroom shower to zero clearance. I was nervous about the project and has already turned down a separate contractor because they made me feel uneasy about how it would get done. CTC impressed me from the beginning with confidence and professionalism. They didn’t let me down. The project went perfect and everything turned out just the way they said. It was even done early. I will definitely use them again for the next project.

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Andrew Paye
March 18, 2019

I just wanted to say how helpful and professional everyone at Cliff Thorn Construction was as we were getting things ready to move into a new home. Thank you.

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Wade Cantrell
July 17, 2024

CTC just finished my home addition and bathroom remodel. We had a couple special order items we couldn’t decide on that delayed the project and CTC had a very collaborative “can do attitude” the whole way through the project. We were happy to have their guidance through the duration of our project! Highly recommend.

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Nicole Guerra
September 23, 2025

CTC a great general contractor that not only does great construction business, but supports their staff and community with non-profit involvement. As being part of NAWIC (National Association of Women in Construction) Chapter 192 Tri-cities - we thank Cliff and the company for their continued support of sponsored membership and involvement you guys have been a blessing to our organization!

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Gutter Girl
March 13, 2025

CTC construction is amazing!

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Makeala Willis
October 7, 2025

Working with Cliff Thorn Construction has been a fun experience. We primary worked with Stephanie, and her communication was top notch -she is direct with how we can handle drop off and pick up and what needs to be done. She is professional, friendly, and reliable, which has made the whole process of creating embroidery shirts for the company truly fun. The professionalism extends to everyone at the company, everyone is so nice and helpful. We highly recommend Cliff Thorn Construction and will definitely be working with them from now on.

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Mark Runsvold
April 3, 2018

Cliff and the crew at CTC have an excellent reputation for quality and timely work. The reputation is well earned, highly recommend.

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Michael Anderson
September 18, 2025

Had some remodeling done on my condo they did a great job and managed to keep the HOA happy I would highly recommend them

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Peggy McDorman
October 4, 2025

AmyLynne and Jake were very impressive from the very beginning. They explained the process in detail and were accommodating to our schedule. Jeff and Connor had the difficult job of demo of the glass and tile shower and the outdated flooring, a little loud, of course, but done in only one day and not a bit of trash left behind. Jeff continued with sheet rock, texture, painting, and flooring. We could not have been happier with Nathan and Guillermo and their work with the cultured marble. Dave, Ethan and Julian were awesome plumbers. James and then Kirk were always checking on progress and making sure materials were where and when they were needed. The floor-to-ceiling sheeting to protect the side room and counters was especially appreciated. The floor from outside to the work site was also protected. There was one unanticipated "hiccup" for the need for a new water shut off valve that was handled very quickly and professionally. This project was not only completed on time but ahead of schedule. We were very pleased with the process and the final result. There was not one single thing that we needed to do. Our bathroom was clean and move-in ready. Every CTC employee and sub-contractor involved with our project was a joy to work with.

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Ken Brutzman
March 26, 2019

I had a problem with the clear coat finish peeling on the exposed beams at my residence. I called CTC for help. Not only did they refinish the beams in a timely manner, they went back to the original clear coat manufacturer and asked for an inspection. The manufacturer determined that the wrong product was used originally and that they would cover the cost of the new product at NO charge. On top of that, CTC came up with an affordable solution to protect the top of the beams into the future. That's what I call exceptional service!

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Leah Guidry
November 23, 2019

They took great care of my home for the repairs needed. No project too small. Very happy with the results.

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Michael Duarte
September 14, 2023

great local company

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Derek VanArsdale
September 19, 2023

From the initial contact to the completion of the project, their professionalism and expertise shine through. They exceeded my expectations with their exceptional craftsmanship and dedication to customer satisfaction. I highly recommend Cliff Thorn Construction for any construction needs.

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Georgia Bruce
January 29, 2020

If we could give them a rating of 6 stars we would! Over the past 5 years we have had Cliff Thorn Const. do 3 major remodels in our home, our living room, kitchen and laundry/bathroom. Every job was done perfectly! They were timely in the work and did an excellent job with minimal inconvenience to us. The living room was our first project. After about 3 years we noticed our carpet had some bumps in it. We called Cliff and they immediately came out to assess the problem determining it needed to be restretched. Within 1 week they had someone come out, at no charge, and restretch the carpet. The gentleman that did the work asked us if we realized how rare that was after that amount of time to have the construction company stand behind their work and not charge us. Thank you Cliff and all of your staff.

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Matt LaPlante
October 27, 2021

Great customer service and very friendly staff...