Building Inspiring Spaces
Have you been wanting a beautiful home where friends and family love to gather?    Do you want a fun, safe recreational space for your children and their friends to hang out?

Are you ready for that dream kitchen, the one with the double oven and apron sink?    Does your bathroom need an update so you have room to soak in a bigger tub?

Whatever your reason for exploring a remodeling project, GJ Koeppen Construction is here to help make your ideas become a reality.

Basement finishes, kitchen and bathroom remodels, decks, and more, our experienced and highly skilled team is here to meet your home remodeling needs.  From design to final inspection, GJ Koeppen Construction is here for you.



 I worked with Graham and his team for the remodel of my kitchen and the finishing   of my basement. The entire team was amazing to work with. They were all kind,   understanding, and easy-going. They explained things to me when I didn't understand,   and had the patience while I changed things and asked a million questions. I would   recommend them to anyone needing a contractor for anything! 
 Erin H. Booth Farm, Firestone 
"GJ Koeppen Construction managed the highest level of customer service and customer satisfaction I have experienced in many years!  Your professionalism, attention to detail, and routine follow-up and feedback, has taken a challenging situation and turned it into a positive experience."

 Catherine, Boulder
GJ "Koeppen took both the design and construction of our small remodel so seriously.  They were respectful of our timing needs, and have a serious work ethic and finely detailed carpentry skills.  We're very happy with what they did and plan on using their help again."
 Michael and Judy, Boulder
"GJ Koeppen Construction has completed construction projects of several types for me. From a full remodel of an old and difficult little house to my own personal master bathroom.  They are competent and flexible.  In addition to being competent they built things exactly how I wanted them without imposing what they thought I should do.  We always discussed the cost of changes, which can be a serious source of discontentment for both parties.  They are easy to work with and make every effort possible to finish according to the construction timeline and budget."

Shaun Patterson
Real Estate Developer/Broker 
We recently decided to finish off part of our basement. After a bit of searching, we settled on a contractor our neighbor had used. 

We were a bit skittish going into this because we have heard many stories of problems with contractors. After meeting with Graham Koeppen we felt pretty good about our choice. We were not in a big rush so that took some pressure off things. 

Graham brought in his employees and subcontractors that he has worked with for a long time. He dealt with the code inspectors, buying the materials, scheduling, etc. just like a pro that he is. 
At the end we were more than happy. He and his men did an outstanding job, they communicated well, and they were courteous and very easy to deal with.

We felt like they were totally trustworthy – we had no qualms leaving the house with them working there. In the end we ended up with a new bedroom, library, workout room, bathroom, and game room. 

I can heartily endorse Graham (GJ Koeppen Construction) because they did a fantastic job, as per our agreement. What more can you ask for. 

Jerry and Barbara, Firestone CO

"…We really liked working with Graham and Joe.  We felt like they approached our project as if it were their own home.  They really demonstrated a desire to make things the way they’d want them to be if they were going to be living here.  When I accidentally scratched up the new floor right after they finished it, I was more concerned about their disappointment than what it was going to cost to fix. Their pride in their work translated into a house that we are very proud of."

"We talked with a lot of contractors before them and several of them annoyed or intimidated us.  We wanted to work with someone who we felt comfortable with. Even though we are very happy to have our house back to ourselves, we liked having them here during the project."

 Rob and Ashleigh, Boulder
Our Team
    Graham is the first person you’ll meet on the job. His fifteen plus years of experience in the construction industry qualify him to address all of your project needs. He is the solid foundation of the company.
  2. PIPER
    Piper manages our day-to-day accounting and finances. Her excellent organizational skills are equal to her customer relations and the ability to communicate clearly.
  3. JOE
    Joe handles the day to day scheduling of the workflow for your project, and coordinates our sub-contractors. He works closely with Piper and John to ensure timely purchasing and excellent client communication.
  4. JOHN
    John is the newest addition to our team. He works closely with Graham and prospective clients to ensure our bids are accurate and tailored to the client’s needs.