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At NJ Sunroom Additions, we specialize in creating custom additions to make your home better-fit to your wants and needs. With endless sunroom and conservatory options, we offer exactly what you’re looking for to update your home.

Custom Care

We work with you one-on-one to help customize your vision and see it come to life. With clear communication throughout the project and technicians certified by Living Space, we guarantee a smooth installation process.

Complete Expertise

Our experts have vast experience in the construction of conservatories and sunrooms both here in the U.S. as well as abroad in Europe. This gives us a complete understanding of what it takes to create and build your dream addition.

Get in Touch!

As the premier New Jersey and New York addition specialists, you can trust us to create a seamless addition to your home. Let us expand your space with a stunning new sunroom, conservatory, or addition. Simply give us a call or fill out our online form, and we’ll set you up with a free, in-home consultation to get started!


Dealer of the Year for North America for the 8th Time!

Each year, the Dealer of the Year award to the company with the highest dollar volume of sold LivingSpace sunrooms. For the eighth straight year, NJ Sunroom Additions took home this honor. Our commitment to quality has helped them take advantage of the popularity of sunrooms in New Jersey to become one of the leading sunroom companies on the East Coast. We love working with their team and look forward to another successful year

Best of Houzz 2016, 2017, 2018, 2019, and 2020!

Headquarters NJ Sunroom Additions


  • 1199 Rt. 22 East Mountainside, NJ 07092
  • Open M-F: 9am - 7:30pm Sat & Sun: 10am - 3:30pm
  • (908) 279-0009