It’s said that there’s no place like home. This is especially true for houses and additions completed by Jewel Custom Homes! We work with you to create just the home you are envisioning.

At Jewel Custom Homes, we are known for giving each project the time and attention it deserves. From start to finish, our detail-oriented team goes the extra mile to ensure that our customers are satisfied with the work we have completed.


Many New Hampshire homeowners want to add a room or reconfigure how space is used in the home. We work with you to ensure the process is seamless from start to finish. From Merrimack to Belnap, Carrol, and beyond, homeowners throughout New Hampshire have been very satisfied with our home construction and addition services. We work with our customers every step of the way so your project not only meets, but even exceeds, your expectations.


The best time to weatherize a New Hampshire home is during its construction. We know that cutting corners on energy efficiency in our New England climate has the potential to unnecessarily increase your home energy bills.

To help our customers avoid overpaying for their home’s energy, we take energy efficiency very seriously and take pride in properly insulating and air sealing homes for long-term energy savings. More energy efficient homes are also better for the environment and conserve energy.

Energy Efficient New Home Construction For Greater Comfort

Did you know that energy efficient homes are more comfortable than inefficient ones? This is because lack of insulation and air sealing causes drafts and uneven indoor temperatures. As experts in energy efficiency, we ensure that your new home is exceptionally comfortable and has low heating and cooling bills throughout the year.


Using lower quality materials can hinder the durability of a new home and increase maintenance and upkeep costs over time. At Jewel Custom Homes, we use high-quality materials on every job for greater new home durability. This saves money and avoids headaches down the road.

Are you planning to build a new home? Contact Jewel Custom Homes for high-quality, professional, and on-time construction services!

Ready to improve the health and safety of your home?

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Schedule Service

  • Thank you for completing the insulation project ahead of schedule. Your staff was very professional and accommodating with all the residents and employees.  All issues were address quickly, and we were informed on changes to the schedule so residents could be notified in a timely manner.  

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    Diane - Nashua Property Director Multi Family over 300 units,
  •  I was just in the back room. In my stocking feet. Which did not immediately turn into little blocks of ice. Having lived in drafty old houses in NH all of my life, I am *astounded* at the difference good insulation makes. Seriously. I knew this was the right thing to do, but I had no idea

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    Sherry Contoocook - Single Family Retrofit,
  • As a commercial builder  I have used many insulation companies for our commercial buildings, but building my own personal home, I needed to make sure everything was perfect.  Building Efficiencies insulated my 5000 sq ft Energy Star home and we achieved the highest results possible.  Thanks

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    Dennis - Nashua Energy Star Home,
  • I wanted to let you know how much I enjoyed working with you and your firm during the weatherization of our Town Buildings.  I have executed several large contracts in the last couple of years and yours was by far the easiest to manage.  I attribute that to your hands on management and
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    Kurtis - Director of Public Works, Several Historic Town Buildings,