Our Services

Our work includes kitchen remodeling, bathroom remodeling, basement remodeling, deck building, significant structural repairs and smaller projects that require the coordination of multiple trades such as electrical, plumbing, masonry, carpentry, tile, and more. We designed our consultative process for small to medium sized remodeling projects to provide many of the same benefits that you would receive from a large general contractor but at a lower cost.



From design, relocation, demo and installation, we take care of everything from start to finish.



Whether it's a simple floor, vanity, an accessory update or a full gut and complete update, we take care of everything.



If you feel your home needs updating/upgrading or you are feeling cramped and want to change the layout of your home, we are here to make it happen.

New Construction

new construction

From your dreams, to blueprints to reality, Nathan Griffith General Contracting & Building will help you build the quality home you've always wanted.


Why choose us

Executing smoothly on a remodeling project requires project management that includes strong communication with our clients, our team working in your house and our suppliers. We always provide the materials for our projects so we can resolve problems quickly. Our team understands that they are guests in your home and will act accordingly.

Look around our site to learn more about our story, see examples of our work and contact us when you are ready to discuss how we can help make your project a reality!

Get a Free Estimate Today

Nathan Griffith General Contracting & Building has been providing quality residential construction and remodeling to the southern New Hampshire area. Owned and operating by the company’s namesake, Nathan Griffith, the company specializes in kitchen and bathroom remodels, residential additions and new home construction.

With an eye for design and detail, Nathan Griffith began working in the industry immediately following his schooling. He quickly learned that his desire for perfection fit well in an industry where the small details really do matter. After surrounding himself and learning from other experienced tradesmen, Nathan branched out on his own, founding Nathan Griffith General Contracting & Building.

Today the company continues to distinguish itself in the southern New Hampshire region, providing quality residential remodeling and construction that is second to none. Nathan and his team of talented tradesmen work closely together to turn their customers’ dreams for their homes into a reality.

Best of Souhegan 2017
Best of Souhegan 2018

“We were replacing the front desk at our busy chiropractic office. I was concerned about the project affecting our patients. However, Nathan Griffith General Contracting and Building was able to work with us to accommodate our schedule. Nathan and his team began the project on a Friday and worked all weekend to have the job completed by Monday when the office reopened. The final product was exactly as I had envisioned and he was able to stay within our budget. We couldn’t be happier with our new front desk.”

Dr. Jerrilyn Sullivan, Main Street Wellness & Chiropractic

“I hired Nathan Griffith General Contracting and Building to repair the frame around my front door. Nathan not only made the repairs, but also identified the cause of the damage. He recommended a different type of material for the frame that would prevent this in the future. The work looks great and it was reasonably priced. I would definitely use Nathan Griffith General Contracting and Building again in the future.”

Nick Zotto

“Nathan Griffith General Contracting & Remodeling renovated my kitchen a year ago. The work was nothing short of exceptional. Nathan’s diligence and attention to detail really showed in the final product. The process ran smoothly and I was so pleased with the final product, that I didn’t hesitate to call Nathan Griffith General Contracting & Remodeling this year when I decided to remodel my master bathroom. Just as before, the work was stellar and I couldn’t be happier with the end result.”

Tim Bellingham

“When I was looking to take on my first major home renovation project, a master bath, I wanted a company that would make this a positive experience for my family. Knowing the reputation of Nathan Griffith General Contracting & Building from friends and colleagues, I put my remodeling project in Nathan’s very capable hands and I was not disappointed!

From day one Nathan and his team not only met but exceeded my expectations. His team always arrived on time and cleaned up the area at the end of the day. This went a long way to making the remodel more manageable for my family. The level of communication throughout the process made me feel like a part of the team.

The final result is the stunning master bath that is everything that I had envisioned. The attention to details, from accent tiles and a custom bench to a beautiful glass door, have made this a space in my home that gets many compliments from houseguests.

We definitely plan to use Nathan Griffith General Contracting & Building in the future for all of our home’s renovations.”

Troy Aarthun





PO Box 144 Amherst, NH 03031