79 Hatch Road, Gilmanton Iron Works, NH 03837, US

Welcome to Spring Mountain Builders LLC custom home builder

About Us


We provide a wide range of services including general contracting, construction management services and  home design services. We offer a variety of contract services, fixed rate flat fee contracts, fixed  fee cost plus contracts  and cost plus contracts. Depending on the size of and scope of your project we feel that our variety and flexibility of services will provide you with the most cost effective and transparent experience. 


Spring Mountain Builders LLC  specializes in the construction of  custom homes ranging from 1500 square feet to 12,000 square feet. We have built or construction managed a wide range of projects over the years ranging from small and large homes, condominiums, renovations, light commercial buildings and entire residential sub-divisions. We take great pride in all of our projects regardless of size or type. 


Spring Mountain Builders LLC  was established in 2009 by John Dean. John has over 30 years of experience building custom homes  and managing the construction of a  wide range of projects. John has a business degree and he takes pride in his professionalism, customer service and his overall cost savings approach without sacrificing quality. John personally oversees each and every project.


There's much to see here. So, take your time, look around, and learn all there is to know about us. We hope you enjoy our site and take a moment to drop us a line. The photo galleries that follow represent projects completed in the Lakes Regions of NH, the Lake Sunapee area and Windham NH. Spring Mountain Builders LLC has  proudly serviced the  Lakes Region and Southern  New Hampshire for many years.



John Dean built my home in Windham NH. I highly recommend Spring Mountain Builders to anyone looking to build a custom home in New Hampshire.  John's a builder you can trust!

Mark Arell



John Dean built our home in Windham, New Hampshire in a beautiful neighborhood, Winslow Lane. 

In our search for a builder for our first home in nearly 25 years – we were looking for someone that we had confidence in and that had the craftsmanship and technical ability that would translate into a home that we would love and our friends and family would appreciate. 

With John Dean we were so fortunate because we received much more than we had hoped for in the building of this home. The most valuable characteristics of John Dean include the following: 

Attention to detail, Trustworthy, Honest, Hardworking, On Time and Craftsman!

Bottom line, I would recommend John Dean and Spring Mountain Builders without any reservations. 


Tom Harte


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To get a free quote, please contact us at your convenience.  We look forward to serving you.

Spring Mountain Builders LLC

(603) 662-4107


Monday - Friday: 8am - 5pm

Saturday - 8am-12pm Sunday: Closed