• House perched over water and the sea

Built On a Foundation of Experience

We meet every project with a passion for quality, creativity, and an emphasis on sustainability.


Modern Kitchen and Modern Living Room


When Peter talks about what he loves best—building—and you'll hear him say, "The homeowner, architect, and contractor make up a three-legged stool. When those parts are working in collaboration, that's a great project."

Campus & Commercial

TNC Wood Paneled Walls

Campus & Commercial

With depth and breadth of experience, Warren Construction Group is committed to maintaining timeless high standards of quality while embracing the latest in energy-efficient technology in the industry.

  • We could not have asked for a more experienced, practical, and responsive builder. Peter was in on our project from the beginning, generous with his advice, and patient with our process. He has assembled a terrific crew, whom we quickly grew to know and trust.

    Jenny Rowe, Head of School
    The Friends School of Portland
  • We are sitting by our beautiful fire, watching the snow and rain 'our eagle' perched in the tree on the point and counting our blessings.  We want to thank you and all of the good people for making our dream home possible.

    Dick & Sally
  • Working with Peter and his team was a collaborative relationship, right from the beginning.

    Peter Johnson
    Former VP Operations and CFO, EnviroLogix Inc.
  • The experience of working with Warren Construction Group was a pleasure. They were professional, collaborative, flexible, and full of great ideas. Issues were resolved seamlessly, and we appreciated their emphasis on honesty and quality.

    Cundy's Point Residence Homeowner
  • Warren Construction and its President, Peter Warren, played a singular role in leading Hebron Academy to complete its major construction project, a transformative Athletic and Recreation Center, on time and within an extremely tight budget.

    John J. King
    Head of School, Hebron Academy
  • We would like to thank you for your contributions to the building and design community in Maine.  The innovation and craftsmanship Warren Construction Group is demonstrated through projects like the recently featured Mallett House. 

    The team
    A. W. Hastings
  • I want to thank you for your quick and professional response to the college’s recent problem with the lights in the fitness center.  I know that you had other projects that demanded your manpower, but you responded immediately when I called.

    Bowdoin College
    Brunswick, ME
  • We have received so many great compliments on the Akin Learning Center.  We are thrilled with the result and appreciate the time and preparation you put into that project to make it perfect.

    Kents Hill School
    Readfield, ME
  • We really worked together to get the job done, and I think Warren Construction Group contributed as much to the design process and to solving the issues as anyone involved. It was a winning combination.

    Timothy Mansfield
    Principal with Cambridge Seven Associates, Inc.
  • Thanks for your excellent work at our church front doors.  Your crew was very thorough to make our entrance exceptional – many compliments.

    Church Building Committee
  • It has been my pleasure to work with Peter Warren and the crew of Warren Construction on the building/renovation project.

    First Parish Church
  • Without Warren Construction Group's fine craftsmanship and leadership the project would not have been nearly as successful.

    Nancy Barba
    Barba Wheelcok
  • We are delighted with the renovation of our kitchen.  The workmanship and attention to details were exceptional.

    Rick & Jane
  • You hired a great contractor in Peter Warren.  He is honest, fair and a great rep for owners in the construction process.  His company will give you an excellent value for your investment.

  • Thank you and your wonderful, professional crew for my beautiful and functional kitchen!  Every member of the Warren team was an expert in their field who imposed the highest of standards to their work.  Additionally they were friendly, patient, tidy and team and task oriented.

    Pat & Marty