Groen Construction

Groen Construction GCI is a NH based premier general contractor servicing commercial clients throughout New England.

Groen Construction Inc., is a New Hampshire based premier general contractor servicing commercial clients throughout New England. From concept to completion, we are dedicated to providing construction solutions that exceed expectations. Our team specializes in a variety of construction services, including:

• Pre-construction services
• Construction management
• Design build
• ICF Construction

General contracting

We provide a comprehensive approach to each project, with a consistent focus on quality, safety, and customer satisfaction. GCI is composed of highly skilled and certified professionals who are dedicated to delivering the best results possible.

After 25 years in business, Groen Construction, founded and owned by Fenton Groen, Warren Groen, Dave Groen, and Joseph ...
03/06/2026

After 25 years in business, Groen Construction, founded and owned by Fenton Groen, Warren Groen, Dave Groen, and Joseph Groen, has made the difficult decision to draw down operations over the next six months and suspend operations for the next one to two years.

This was not an easy decision. Our company has been shaped by the people we have worked alongside, the projects we have built together, and the relationships formed along the way. We are deeply grateful to our employees, customers, subcontractors, vendors, and partners who have been part of this journey.

Changes within our team and shifts in market conditions have led us here. During this pause, we will be focusing on our families, personal projects, and reflecting on what comes next.

One thing that has not changed is our passion for the Insulated Concrete Form industry. We believe strongly in its future. ICF is in our DNA, and while this chapter is closing, our involvement in the industry is far from over.

Our website will remain active and will continue to share insights from 25 years of hands-on ICF experience, along with industry updates and best practices.

If you would like to stay connected or have ICF-related questions, we invite you to connect with us on LinkedIn.

To everyone who has been part of Groen Construction over the past 25 years, thank you. We are grateful for the journey we have shared.

We’re honored to have been recognized at the ICF Builder Awards this past week at World of Concrete in Las Vegas. Groen ...
01/28/2026

We’re honored to have been recognized at the ICF Builder Awards this past week at World of Concrete in Las Vegas. 

Groen Construction received 2nd Runner Up in the Unlimited Residential Category for the Granite State Sanctuary project. We’re proud to have served as the ICF installer alongside an incredible team of partners who helped bring this project to life.

Thank you to everyone who continues to support our work and share in our passion for high-performance construction.

01/21/2026

Concrete pour day is a critical step in ICF construction.

Once the ICF block is stacked and rebar is installed, concrete is placed to create a monolithic, reinforced wall system. This step locks in the structural integrity and long-term durability that ICFs are known for.

Dover, NH project update.
Our crew continues to make steady progress on the ICF building envelope of a house on the Pisc...
01/20/2026

Dover, NH project update.

Our crew continues to make steady progress on the ICF building envelope of a house on the Piscataqua River in Dover. 

Finishing touches are underway on one of our latest projects: a manufacturing facility in Barrington, NH, built with ICF...
01/14/2026

Finishing touches are underway on one of our latest projects: a manufacturing facility in Barrington, NH, built with ICF technology for strength, efficiency, and longevity.

𝗣𝗿𝗼𝗷𝗲𝗰𝘁 𝗦𝗽𝗼𝘁𝗹𝗶𝗴𝗵𝘁: 𝗧𝗵𝗲 𝗟𝗲𝘄𝗶𝘀 𝗕𝘂𝗶𝗹𝗱𝗶𝗻𝗴Located in Newburyport, MA, Groen Construction served as the General Contractor on ...
01/06/2026

𝗣𝗿𝗼𝗷𝗲𝗰𝘁 𝗦𝗽𝗼𝘁𝗹𝗶𝗴𝗵𝘁: 𝗧𝗵𝗲 𝗟𝗲𝘄𝗶𝘀 𝗕𝘂𝗶𝗹𝗱𝗶𝗻𝗴

Located in Newburyport, MA, Groen Construction served as the General Contractor on this 10,239 SF mixed-use project, featuring 3,375 SF of commercial space and 6,863 SF of multifamily residential space.

This structure was built on a challenging site with busy roads on three sides. The zero setback building envelope resulted in a footprint with no right angles in the exterior walls.

Insulated Concrete Forms proved to be the perfect material for the exterior walls providing construction flexibility as well as strength, efficiency, and durability. A great example of quality craftsmanship from the ground up.

01/01/2026

As we enter 2026, we reflect with gratitude and look forward with purpose. Thank you to our clients, partners, and team members who continue to make our work possible.

Happy New Year, and may 2026 be filled with blessings.

12/31/2025

Groen Construction president, Dave Groen, had the opportunity to visit a couple of Hobbs Masonry Construction job sites in Phoenix, Arizona to see Nudura’s Precut ICF service in action.

A special thank you to owner Jason Hobbs for taking the time to lead us through these impressive projects and for sharing his insight, and to Randy White from Nudura for coordinating the visit.

We look forward to starting our first Precut ICF project in the coming weeks!

𝗙𝗶𝗻𝗮𝗹 𝘄𝗲𝗲𝗸 𝘁𝗼 𝘃𝗼𝘁𝗲! We’d be honored to have your support as voting comes to a close for two exciting awards.𝗜𝗖𝗙 𝗕𝘂𝗶𝗹𝗱𝗲𝗿 ...
12/29/2025

𝗙𝗶𝗻𝗮𝗹 𝘄𝗲𝗲𝗸 𝘁𝗼 𝘃𝗼𝘁𝗲! We’d be honored to have your support as voting comes to a close for two exciting awards.

𝗜𝗖𝗙 𝗕𝘂𝗶𝗹𝗱𝗲𝗿 𝗔𝘄𝗮𝗿𝗱𝘀 – 𝗣𝗲𝗼𝗽𝗹𝗲’𝘀 𝗖𝗵𝗼𝗶𝗰𝗲
Please consider voting for our collaborative project, “Granite State Sanctuary”, with CIB Custom Homes, Atlantic Builders Supply, and Studio BE. We are nominated in the Unlimited Residential category. Voting is open until January 2, 2026, and requires signing in with your email and selecting at least 10 categories for your vote to count.

𝗕𝗲𝘀𝘁 𝗚𝗲𝗻𝗲𝗿𝗮𝗹 𝗖𝗼𝗻𝘁𝗿𝗮𝗰𝘁𝗼𝗿 – 𝗡𝗛 𝗕𝘂𝘀𝗶𝗻𝗲𝘀𝘀 𝗥𝗲𝘃𝗶𝗲𝘄’𝘀 𝗕𝗲𝘀𝘁 𝗼𝗳 𝗕𝘂𝘀𝗶𝗻𝗲𝘀𝘀 𝗔𝘄𝗮𝗿𝗱𝘀
We are also nominated for Best General Contractor. Voting is open until December 31, and also requires signing in with your email and selecting multiple categories.

Links to vote for both awards are available in the comments. Thank you for your support and for helping us celebrate the hard work of our team and partners!

This Christmas, we celebrate the greatest foundation of all, Jesus Christ, whose birth brings hope and peace to the worl...
12/25/2025

This Christmas, we celebrate the greatest foundation of all, Jesus Christ, whose birth brings hope and peace to the world.

Merry Christmas from all of us at Groen Construction. May your day be filled with joy, light, and time shared with those closest to you.

Despite plummeting temps and accumulating snow, the Groen Construction crew is making strong progress on this residentia...
12/19/2025

Despite plummeting temps and accumulating snow, the Groen Construction crew is making strong progress on this residential Insulated Concrete Form (ICF) foundation in Epsom, NH. 

One of the often unsung benefits of ICF is the ability to work through extreme conditions with minimal impact to the timing of concrete placement. Because the concrete wall is sandwiched by two R12 EPS panels, fresh concrete is protected from high or low temperatures. The result is more flexibility during construction and higher concrete strength compared to conventional forming. 

Great work taking shape on a beautiful property. More updates to come.

Address

120 Washington Street Unit 302
Rochester, NH
03839

Opening Hours

Monday 8:30am - 4:30pm
Tuesday 8:30am - 4:30pm
Wednesday 8:30am - 4:30pm
Thursday 8:30am - 4:30pm
Friday 8:30am - 4:30pm

Telephone

+16033326551

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