GJ Koeppen Construction LLC
Verified BusinessHome Improvement Services

Phone720-378-7660

Address 7845 Lookout Road, Longmont, CO, USA 80503

    Get Direction

    GJ Koeppen Construction LLC
    Verified BusinessHome Improvement Services

    Phone720-378-7660

    Address 7845 Lookout Road, Longmont, CO, USA 80503

      Get Direction

      Koeppen-Construction-FA-100

      Residential remodeling contractors near Boulder CO

      Transform your Boulder home with our expertly crafted home additions. Our team at Koeppen Construction specializes in creating seamless, functional, and aesthetically pleasing expansions. From design to completion, we ensure a tailored approach that aligns with your vision. Enhance your living space and add value to your property with our professional home addition services in Boulder, CO. Call us on (720) 378-7660 for more details.

      Services Provided

      • Remodeler

        65%
      • Home builder

        10%
      • Kitchen remodeler

        12%
      • General contractor

        13%
      GJ Koeppen Construction LLC
      Verified BusinessHome Improvement Services

      Phone720-378-7660

      Address 7845 Lookout Road, Longmont, CO, USA 80503

        Get Direction

        Photos from the Web

        Review summary

        • 5
        • 4
        • 3
        • 2
        • 1

        5 5 Reviews

        • Dave Sehnert

          April 08, 2022

          I have hired GJ Koeppen for three major projects and a couple small projects over the last 4 years. The attention to detail, responsiveness to issues as they (inevitably) arise and collaborative approach to resolving challenges are remarkable. My wife and children always felt comfortable with the team members in our home and they leave a clean workspace at the end of the day. I highly recommend GJK for any of your home improvement projects!

        • Calvin Coursey

          October 02, 2021

          They do quality work in a short time will recommend to all looking for remodeling contractors...

        • Rick Mansfield

          May 08, 2020

          We ended up accepting the bid of another contractor whose schedule better fit our need for a quick turnaround, so we can't speak to the overall renovation experience, but Graham impressed us with his professionalism throughout a somewhat complicated bid process. He asked incisive questions about what we wanted and suggested alternatives where appropriate during the initial consultation at the house. His bids were carefully itemized to facilitate comparison with other bids, and both his original bid and his update (when we changed what we requested) were fair. He was transparent about his schedule and didn't make promises he couldn't deliver. And he was patient as we agonized over our decision, and accepted with grace our final decision to go with another bid. I wouldn't hesitate to recommend Graham to others in need of contracting services.

        • Laura W

          April 22, 2019

          We were HIGHLY impressed with GJ Koeppen from start to finish on a basement build-out to mother in-law apartment. Work was done on time, project came in on budget, their crew is friendly and professional, and the quality of the work is excellent. Any project will have a few minor snags; they responded and resolved those issues quickly and to our satisfaction. They stayed very communicative and transparent through all stages: from bid to administration/change orders (increased costs due to OUR changes/requests for preferred finishes) through actual work we were very impressed with all of their staff. We wouldn't hesitate to use them again on future projects, and have already recommended them to friends.

        • Harmony

          December 03, 2018