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

Home-additions-Boulder-CO-768x576

Home Remodel Contractors Boulder CO

Whatever part of your home requires renovations, you can trust us to help you. We have been working on home additions in Boulder, CO for years. 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