Testimonials

Client Testimonials

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, Firestone, CO
Erin H
Firestone, CO
5/5
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 & Judy, Boulder, CO
Michael & Judy
Boulder, CO
5/5
GJ Koeppen Construction managed the highest level of customer service and customer satisfaction I have experienced in many years! Their professionalism, attention to detail, and routine follow-up and feedback, took a challenging situation and turned it into a positive experience.
Catherine, Boulder CO
Catherine
Boulder CO
5/5
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.
Sean P, Real Estate Developer/Broker
Sean P
Real Estate Developer/Broker
5/5
Dear Graham, Thank you for turning my vision of my new kitchen into reality. It is stunningly beautiful and I am so proud of it. You and your guys did an amazing job, so I hope you are proud of it too. I sent photos on your phone with text. Hope you got them. You are welcome to come take more and to bring future customers to see it if you wish. Thanks Again,
Karen and Con Smith
5/5
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
5/5
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
5/5
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
5/5
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
5/5
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
5/5
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
5/5
We were HIGHLY impressed with GJKC from start to finish. 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 through all stages: from bid to administration/change orders (increased costs due to OUR request for preferred custom 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.
Laura W
from Summit View Estates (Nextdoor)
5/5
We are in the midst of a major remodel and are using GJ Koeppen Construction out of Longmont. They are AWESOME!!!
Jill H
from Skyland Village (Nextdoor)
5/5
GJ Koeppen Construction, a local Frederick company, finished our basement a few months ago. I highly recommend Graham and his crew! All super respectful, courteous, friendly and they did a great job!
Karl A
from Neighbors Point Firestone (Nextdoor)
5/5
We were very pleased with GJ Koeppen Construction! This company is owned and operated by a local family that lives in our community. They finished about 1400 sq ft of our basement and they came in under budget and on time! We were very impressed with how professional, reliable and responsive they were! We would hire them again in a heartbeat!
Michelle A
from Neighbors Point Firestone (Nextdoor)
5/5
GJ Koeppen Construction just finished my bathroom. I love it and the price was very reasonable compared to the other estimates. No surprises.
Marit W
from Quail Valley (Nextdoor)
5/5