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"Groen Construction did the fit-up for the new administrative office of Word Radio at 120 Washington Street in Rochester. They worked with us on numerous changes to our ideas for our very first office space. Groen Construction built our offices to amazingly comfortable and colorful settings. We are extremely grateful for their patience and professionalism."

WordRadio - 88.7 FM WSEW

NH Custom Home Commercial Builder

"From our first conversation with Fenton of Groen Construction, we knew we had the right partner in our endeavor. Groen made the whole process easy so we could run our busy wholesale operation while the office construction took place. This was very important to our success that year.

It has been close to ten years since the construction and our new office still fills all our needs. We will always recommend Groen Construction."

Ken Michael, Millican Nurseries Inc.

NH Custom Home Commercial Builder

"The City of Rochester is very pleased to have been chosen by Groen Construction for the high-quality commercial investment at 120 Washington Street. The Groen team was a pleasure to work with and always on top of the process, resulting in a stunning building and an admirable setting. The Economic Development Office was able to assist Groen Construction with expediting state environmental review to keep the project moving on schedule. The Groen team worked harmoniously with all city officials for smooth planning and approvals."

Karen Pollard, City of Rochester Economic Development Manager

NH Custom Home Commercial Builder

"To all the Town employees who took it upon themselves to volunteer to assist in whatever way they could. To town residents and businesses who donated whatever they could to help the project become a ‘community event’. My estimate is that we (the town) saved over $200,000 in time, effort and materials that were donated. To Groen and their subcontractors, who kept an eye on expenditures and provided suggestions on how to save money; making some changes and modifications without charging or by discounting their fees whenever they could. If we hadn’t received this help and dedication, none of this would have been possible."

Neil Johnson, Farmington NH Budget Committee & Board of Selectmen

NH Custom Home Commercial Builder

"We had our home built in Alton Bay, NH by Groen. We lived in the Chicago area at the time and to have a home built from so far away can be difficult.  With Groen it went very smoothly as the team was so attentive to our needs.  We communicated over the phone & emails.  They built our ICF home so precise with care and pride.  Anytime we had a question, they always provided an answer.  People say that building a home is the worst experience, but as for us, it was the best.  Groen is very detailed and will definitely handle any problems that may occur with much diligence.  We recommend Groen to anyone who wants a well-built home, done with much care, attention and pride.  Thank you Groen Team for our spectacular home!  We truly appreciate you and all that you have done for us."


Brent & Reine  -  Alton Bay, NH

"Carol & I couldn’t be more pleased with the large custom home built for us by Groen Construction.  It was so nice dealing with a family operation during construction.  The attention to detail in the finish work is superb, and we constantly get compliments.  Even though we are on a busy street, Route 28, the ICF construction means that there is almost no road noise inside, and our heating bills have been very reasonable."


Dan & Carol  -  Epsom, NH

"To everyone at Groen,


I could hardly be any happier with my cottage!


Thank you!

Thank you!

Thank you!"


June  -  Dover, NH

"I just wanted to thank you for the handicapped addition that was put onto my house.  I loved how it was done at the agreed upon price and within the time limit we'd talked about.  The workmanship was first class and Patrick was wonderful to work with.  I appreciated how he was at the house most work days and was easy to talk to as the job progressed.  Most of the sub contractors you had here were very pleasant and accommodating.  I'd be glad to be a reference for any future customers thinking of hiring your company.  In fact, I've told many of my friends what a joy it was to work with Groen Construction on this project."


Carol -  NH

"We are so pleased with how this job came out and so thankful for your patience and outstanding customer service! Many thanks."


Carla & David  -  Portsmouth, NH

"Thank you so much for a job well done.  Everyone was so polite and hardworking.   I will not hesitate to recommend you! Thanks again."


Darlene  -  Rochester, NH

"Thank you so much for working on our home. Your work is of excellence and thoughtfulness! Thank you for all you have done! Love to All"


Cindy and Pastor Monahan  -  Somersworth, NH


Client Satisfaction

Creating the best customer service in the construction industry.

We've defined what EXCEPTIONAL customer service means to our company and are committed to providing YOU the very BEST customer service in the construction industry.

But most importantly, over the last 20 years we've learned that each customer has a definition of excellence. YOU are unique and so is YOUR project. By creating a strong relationship with YOU, we learn how to best meet or exceed YOUR expectations for customer service.