About us

Atrium Development Co. Specialists in Modular Home Sales & Construction

Atrium and our network of professionals provide unequaled service and support and the best value for modular homes.  Committed to excellence since 1982, Atrium, an award winning modular home company is a member of the National Association of Home Builders and the state and local builder’s associations.

We are very proud of our reputation as a company and have continued to provide unequaled service and support to our customers.  We are specialists in the sales and construction of modular homes.  Modular homes are our only products which insures you the expertise in the configuration, setting and completion of your home. Atrium is a member of the National Association of Home Builders the NJ Builders Association the Modular Building Systems Association and has received many Builder of the Year Awards from the modular home manufacturer.

Atrium can (1) provide you with a complete turnkey package, (2) act as the construction manager for you as the builder, or (3) just sell you the modular home on your foundation.  All the homes are noted for their superior quality and construction details, precision engineering for a lifetime of structural durability, and the most proven style and designs which translate into greater resale value and easier marketability of your home. All homes have a 10 year warranty, have been approved by the State of New Jersey, New York and other states, and meet or exceed all local approvals. We will provide you with superior professional support services for site selection, permits, financing, design, and construction.

Our houses are built with the style and quality you’ll be proud to own. An affordable modular home is within your reach! We can give something you’ve always dreamed of at prices that make it a reality.

Proudly serving  New Jersey and New York in the following counties:

New Jersey – Morris,  Passaic, Warren, Sussex , Bergen, Essex, Somerset, Middlesex, Hudson, Union, Hunterdon, Mercer, Monmouth and Ocean Counties.

New York – Rockland, Orange & Westchester Counties

We will ship and set modular homes in other areas.

We look forward to working with you on this very important investment decision.

Robert J. Mazzola, President



Atrium allowed us to build our modular home the way we wanted it. We had the flexibility of revising the plan of our choice to meet our needs. Atrium guided us through the entire process from start to finish. They were always there to solve issues as they arose.
The project was completed on time and on budget. We know that we made the right decision when we called Bob Mazzola at Atrium.

George & Susan
Towaco, NJ 

Atrium was the contractor for our home in Normandy Beach, NJ. Atrium was very helpful in the planning stages and answered our questions, and there were many, in a prompt manner and proved to be correct.

During the demolition period, Bob Mazzola there every day to supervise the work, which procedure was followed throughout the job. He was there everyday and the work was completed by Memorial day just as he said, five months from start to finish. All the subs were there on time and did their jobs in a workmen like manner.
The home went through Superstorm Sandy with almost no problems due to the solid construction of modular homes and the people putting it together.

If I had to do it again, Atrium and Bob Mazzola would be the people I would go to for that.

Bob and Elizabeth
Normandy Beach, NJ

Atrium/Bob Mazzola, completed a “turnkey” home construction for Bedrock Tower, in the summer of 2014. Bedrock Tower was very pleased with the product and the construction oversight that Bob Mazzola provided. Bob Mazzola was very focused and accomplished all that he promised. The town that we built in was very demanding and fastidious. Bob was able to deal with the town every step of the way. There were no problems encountered with this project. Bob even handled or oversaw some parts of the project that were not his direct responsibility. We were very pleased with Bob/Atrium and would highly recommend him. The project was about a $ 400,000 job.
We also would not hesitate to use Bob again. He was always professional and pleasant to work with.

Silvio M, President
Bedrock Tower
Chappaqua, NY
“Working with Atrium was a great experience. From design of my custom floor plan to delivery and installation of my new modular home, they were there to help every step of the way”
West Milford, NJ

“My wife Linda, son Michael and I are very pleased with our Simplex lakeside house that we purchased through Atrium. We were very happy with our Simplex dealer Bob Mazzola from the very beginning. We were treated wonderfully by Bob. He responded quickly to numerous emails & phone calls. Bob made arrangements for us to visit the Simplex Manufacturing plant in Scranton, PA. We met Pete at the Simplex plant and Pete gave us a personal guided tour of the entire facility. Pete was very knowledgeable about Simplex’s full line of products and answered all of our questions. When we drove home from the factory tour, we knew that Simplex would be our choice of our modular lakefront home. Both Bob and Pete were always willing to help us answer all of our questions. We are thrilled with our beautiful home and highly recommend Atrium and Simplex Homes!

Jim & Linda
Ho-Ho-Kus, NJ

This letter serves as a testimony of our satisfaction with the experience we had purchasing our modular home from Bob Mazzola with Atrium . We first visited Simplex 2 years ago, and decided to wait and search for what our best option would be to meet our needs. We had researched of variety of companies for years, and are so thankful we went full circle back to work and complete our job with Bob from Atrium.
Bob is a professional who is extremely knowledgeable in all areas of this field. He was able to guide us through the entire project from start to the delivery of our new home on our lot. In addition, he went above and beyond what he was required to do in terms of helping us get what we wanted for a price that worked for us! We love the quality of our final product and how timely it was ready from the order date to the delivery date, arriving with exactly the options we chose. The beauty of going modular is there are no surprises, with the exception of it is even better than we ever imagined!
We have recommended Bob and building modular to many others, especially those who have suffered loss from Hurricane Sandy.
Rosaly and Rob
Basking Ridge, NJ


We wanted to take the time to let it be known of how satisfied we were with our experience with Atrium from our initial meeting up to the delivery and completion of our modular home.

From our initial meeting, Bob Mazzola took the time to listen to what we were looking for and input his expertise to adjust our thoughts into reality. Even after our numerous changes and alterations, Mr. Mazzola was always patient, understanding and offered his recommendations to properly design and alter the plan into the final product.

We went from a 1,500 sf home to the house of our dreams. Mr. Mazzola led the way for the demolition of that house, installed a grand walk out basement constructed with Superior Wall foundations and delivered over 4,100 sf of a customized center hall colonial with a walk up attic.

With the services of Atrium, we now have one of the most beautiful homes in town.
We couldn’t have done it without the services, professionalism, experience and expertise of Mr. Mazzola and Atrium! We will always be grateful.

John and Lainie
West Caldwell, NJ


Our construction project consisted of a second floor Modular addition, as well as, a kitchen renovation. Before we began our construction, we had heard from numerous friends and family that construction can be a very stressful process, and that working with contractors can be even more difficult. Needless to say, we were extremely nervous about the whole process.

I am so pleased to inform you that our experience working with Bob Mazzola was extremely positive, from our initial meeting to our very last. Bob was always professional, respectful, kind and extremely knowledgeable. Bob is extremely hands-on with all the workers, and every detail was planned and anticipated in advance. He was able to resolve any issues that occurred with calm and quick problem solving skills. In addition, our project was completed quickly and Bob made sure that he communicated with us at every turn, so that we were always satisfied with the results. Bob made us feel very confident and because of his personable demeanor and expertise, we were able to relax and really enjoy the entire process.

It was truly a pleasure and honor to work with Bob Mazzola and we absolutely love our Modular addition. I would definitely recommend Bob to friends and family, who are interested in Modular construction.

Mia Tanya and John
Basking Ridge, NJ


Just wanted to send along a note of appreciation. We are loving our new house. We really appreciate your attention to us thru the procedure. Your expertise from your years of experience also came in handy. It’s been about a year and everything is holding together just fine thru Hurricane Sandy, Rain, Snow, Wind, and Cold. Thanks for everything.

Rockaway, N.J.

Working with Bob as our GC exceeded all of our expectations. We worked with him extensively on all aspects of planning and building process and he was always accessible, reasonable and made intelligent decisions to ensure the highest quality house. At the same time, he remained economical and ensured adherence to the budget. We love our beautiful modular home and we feel very lucky to have found him and Atrium. We are confident that anyone building a house, especially first timers like us would feel the same.

Tali & Alex
White Plains, NY

Atrium International has built two modular homes for me. Bob Mazzola is an old time builder whose word is his bond. I would recommend Bob Mazzola and Atrium to anyone interested in building a home either for themselves or for investment. He is honest, straightforward, and on the mark when it comes to pricing and schedule. I still contact him from time to time for pricing on building spec homes for me. I appreciate the time and effort he put into planning and building my homes….saved me time and money.

Woodcliff Lake, NJ

We worked with Atrium to build our dream house and were very pleased. Bob Mazzola was professional, pleasant and a wonderful liason with the modular company. We had many custom requests and he handled them all graciously. The design and construction of our home is beautiful and we look forward to many happy years here.

New Providence, NJ

Bob Mazzola was the general contractor for the construction of our house in the fall of
1998. While new home construction is inherently stressful for almost any homeowner, Bob’s services as a general contractor were invaluable, and we are extremely pleased with the final result. Specifically,
we would give Bob top marks in the following areas:

1. Quality of work performed. The quality of work done was consistently high quality. Bob
used subcontractors who were knowledgeable, skilled, and competent in their respective
trades. They were conscientious about following project specifications, and their work
results never required improvement or revision.

2. Quality of work crews. The workmen whom Bob utilized were professional, reliable, courteous, and respectful of the neighbor’s property and privacy. They had, good work habits, strong safety orientation, and focused on getting the job done right the first time

3. Project management and coordination. Bob’s prior experience working in the construction industry was a strong asset He was knowledgeable about all aspects of our project, and was able to plan,
coordinate and manage the activities of different work crews effectively. He remained
closely involved in the day to day over site of the project. His excellent attention to
detail, strong organizational skills and follow-up commitment were strong traits which
enabled him to manage the extensive details involved in our project without failure or compromise.
Bob’s familiarity with building codes and dealing with city hall also facilitated a smooth and
hassle-free process when it came to building permits and inspection.

In closing, we are very pleased with the final product which Bob was instrumental in delivering,
and are extremely impressed with his work as a general contractor.

Robert and Erin
Chester, NJ


I recently purchased a Simplex home from Bob Mazzola owner of Atrium international. Bob was an absolute pleasure to work with and the Simplex home has been well built from my standpoint. I have recommended him and will continue to do so in the future.

Hasbrouck Heights, NJ


I utilized the services of Bob Mazzola at Atrium to provide me with a modular home to be placed on my lot in West Milford, NJ.

From the outset, while being very professional, he was down-to-earth in his support, providing practical suggestions as he took the house plan I provided, helped me to refine them, and formulate a working model which became the home in which I now live.

I can recall the “big day” when I watched the cranes skillfully dangling this creation above my foundation and setting it down with enormous proficiency. Bob was there all the way, inspiring confidence with his professionalism and down-to-earth manner.

I have enjoyed living here, and would like to commend Mr. Mazzola as a skillful professional whom I would not hesitate to recommend to anyone wanting a modular home.

West Milford, NJ

Excerpts from a Bergen Record article on Modular Homes

Ayeda wanted to replace her small ranch with something bigger, but was afraid of how expensive construction would be.

As a Realtor she was aware of modular homes- homes built in sections (or modules) in factories.

“I looked into a couple of modular home companies and actually wasn’t sold on modular” I thought it would be boxy and didn’t want that look”

Then she fell in love with a modular home being built in New Milford by Bob Mazzola of Atrium Development Co in Montville.

“I already had plans to build a stick-built (traditionally built on-site) house and Bob helped me manipulate the plans to meet my specifications and build a modular home” she said.

Now in their 3,100 sf four bedroom, 2.5 bath modular home, she and her family couldn’t be happier.

Excerpts from a letter from the President of a modular home manufacturer to Bob Mazzola.

As a builder, you have truly demonstrated the highest quality standards. Your every attention to business details and customer demands have been the keystone to your success.

We have often used your ordering procedure as an example to our builder organization. The fact that your homes come to the site as ordered is a tribute to your attention to details that other builders seem to lack.

You alone have been responsible for some of the new innovations in the product. This type of input indicates your strong loyalty and support of the homes that you sell to your customers.

Atrium continues to lead the way in customer service. Your customers not only have the factory supporting the product, their builder is always there to make sure the corrections are made properly


I would like to thank Bob Mazzola personally for his help in directing our project through its course. The house is just right for the churches need. Bob’s professionalism was a major key in the startup of this modular home. I strongly recommend him for any need in a modular home. Thank you Bob
Jerry Hurta (Living Waters Church)
Parsippany, NJ


Thanks Bob. Our house is great! We are very pleased with the work you and your crew did. The speed in which our project was completed was very impressive. The job from start to finish took 63 days! I remember a comment my neighbor said. He remarked how there was rarely, if ever, a day that went by where there was no one working at the house. Your ability to manage the project and with the multitude of contractors was incredible! The work completed by you and your men was always done with utmost professionalism, courtesy, and care. I would recommend you and Atrium International to anyone interested in doing this kind of project. Thanks again for making the concept become reality!

Mark C
Madison, NJ


We built our custom modular home with Bob Mazzola and Simplex. We did a lot of research on such homes, but still had some unanswered questions. All that changed when we met Bob for the first time. He has a lot of experience in this area and he took the time to answer all our queries. He suggested us to visit Simplex’s open house in PA, and then invited us to one of his ongoing projects in the area close by. Within a week of meeting with Bob, we felt comfortable to begin our project. Bob was always reachable to address our concerns and make any adjustments we requested. He is a pleasure to work with! We highly recommend Bob Mazzola to anyone looking for a reliable, honest and professional builder to make their dreams turn into reality! Thanks for an awesome job Bob!

Sandeep & Amanda
Chatham, NJ

I would like to take this opportunity to express my complete happiness with Mr. Bob Mazzola and Atrium Homes. Mr. Mazzola guided my family through this very exciting project, he carefully explained the options we had with the budget we were working with.
Once we came to a decision on the route we as a family were going to take, Bob explained the time frame for each phase of the process.

I must say that the finished product exceeds our expectations, the process was seamless as Mr. Mazzola dealt with our local town and handled all necessary permits needed to complete the job. I would undoubtedly recommend Mr. Mazzola and Atrium Homes to anyone in the market for a modular home construction. It’s with great pleasure, that I publicly thank Bob Mazzola for his excellent guidance in my family’s new home.

Anthony and Patrice
Morris Township, NJ

“During a very difficult time for us after Hurricane Sandy, Bob Mazzola from Atrium International was tremendous to work with. He guided and advised us every step of the way. He delivered on all promises!”

Steve T
Ocean Gate, NJ

Successful companies on any level requires the ability to follow through, to execute a plan, to persevere, & to be reputable.
Robert Mazzola, President of the Atrium Development Company has been in the modular housing business for over 30 years and is one of the most reputable builders in New Jersey. Atrium Developments primary focus is to ensure their customers receive the utmost quality & craftsmanship in their homes & to exceed the customer’s expectations.
Over the years, Atrium Development has received numerous awards for their building excellence. Atrium Development is a member of the National Association of Home Builders, the New Jersey Builders Association, along with many other associations.
Atrium Developments longevity has been built on their reputation.
We at Simplex Homes (45 years in the modular home building industry) are proud to be Atrium Developments supplier of quality modular homes.
Thank you Bob for your past & continued business

Peter Rumensky
Simplex Homes Inc.

Dear Bob , Thank you for the excellent presentation you gave at the MREIA August meeting. In addition to sharing your knowledge, you also deftly communicated a visual understanding of modular homes through your Powerpoint examples. Thanks again.

Dan Schwartz, President
Metro Real Estate Investors Association, Inc.

Bob, Thank you for the excellent job you did regarding the completion of my home in Brick, NJ. Your knowledge of the modular construction process was exceptional and your response to my questions was very timely. Followup service was completed. We are very satisfied with the results and have recommended you to others looking to use modular construction.

John and Shelly M
Long Valley, NJ

Dear Bob, Thank you for being the “one” in charge in building my home. In this day and age, where people have gone through nightmares in the construction of their home, you have made it easy. Your integrity is refreshing. Thanks again for your patience and understanding! Yours truly,

Maria B
Brick, NJ