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Find Addition to existing structure builders in Whippany

Avatar for Joseph & Sons Construction, LLC
Joseph & Sons Construction, LLC
4.9(
168
)
Addition to Existing Structure - Build

Serving Whippany, NJ and surrounding areas

Approved

In business since 1995

Free estimates

Emergency services offered

"They were very easy to work with. They ended doing some additional work for us at my house. They are one of the only companies that my wife and I both agreed that we would like to come back to do any additional work."
custom luxury home
custom luxury home
remodeled spacious basement
Renovated backyard
renovated walkway and driveway

+1

Response time1 day
Recommended by89%of homeowners
Avatar for BUILT-WELL BUILDERS, LLC
BUILT-WELL BUILDERS, LLC
4.8(
167
)
Addition to Existing Structure - Build

Serving Whippany, NJ and surrounding areas

Approved

Super Service Award Winner

In business since 1980

Free estimates

Warranties offered

"The best! Keith, Hank, Michael and Grant were a pleasure to work with over the course of several months last year. I have dealt with many contractors, both personally and professionally, and I can tell you that they should be your first call on any project. The work was done on time and on budget. We added some things to the project, but in no way did they push us to add a single additional item. In fact, we added a complete rebuild of the deck after the project had begun and there was no premium on the additional cost as compared to other contractors who know they have a captive audience. They were present at the property nearly every single day of the project, including Saturdays, as opposed to other contractors who simply give the work to subcontractors and check in once or twice a week, at best. In other words, they know what is going on at all times and are able to give guidance and direction to the subs, and us, on site. They are also more than willing to listen and make any adjustments without crushing you with additional costs! And, they actually work and work hard (especially through the brutal, brutal summer heat last year when we lost our air conditioning for a couple of weeks). I have known Keith and the crew for many years and there is nobody else I would trust to complete such an extensive project which included: completely new roof, all new siding, replacement of every single window in the house (which Keith, Hank, Michael and Grant) did personally, new addition (which included replacement of primary first floor structural beam), new primary bath and primary closets, new flooring, whole house painting including ceilings and more. Lastly, they don’t bite off more than they can chew which sets them so far apart from every contractor we have ever dealt with. Personal touch, presence, attentiveness and excellent workmanship. Highly recommend!"
Response time2 days
1 neighbors recently requested a quote
Recommended by93%of homeowners
Avatar for CSZ Construction
CSZ Construction
4.6(
69
)
Addition to Existing Structure - Build

Serving Whippany, NJ and surrounding areas

Approved

In business since 1998

Free estimates

Emergency services offered

"My parents and I live in a old brick apartment building in Hoboken that is from the 1880s. The bathroom in our apartment had not been updated since the 1940s. We needed help ASAP. We checked out Cesar s page and wanted to hire him immediately. The reviews speak for themselves. When he came into our apartment to give us a quote we knew that this was contractor we needed to get the job done. Cesar is affordable, friendly, and very accommodating to any issues or concerns you have before starting the project. Two massive issues with our project were that my dad has spinal & walking issues, so we needed the floors clear of all tools and materials at the end of the each day so that father could walk efficiently through the apartment. The other big issue was that we only have 1 bathroom, so Cesar agreed to work with us on pulling the toilet off and on as every day finished so that we did not have to leave our building to use the toilet. Him and his crew are the best and take pride in their work so that owner is happy with the final result. We brought the bathroom down to the bare bones and rebuilt it back up. I worked with him every step of the way to make sure that he needed all materials to get the job done in the time we needed. This project was an intense remodel with some of the hardest demo and substrate materials that an old bathroom can have. He didn t think anything of it. He has veteran experience in the field and this remodel only took 3 weeks. We are very impressed with Cesar s craftsmanship and professionalism and we will be hiring him again for any future interior projects."
 ALL COLUMNS FINISH
OLD DECK
Livinroom
 PAINTING
PREPARING FOOTINGS

+168

Recommended by93%of homeowners
Avatar for Prestige Design & Build Corp.
Prestige Design & Build Corp.
5.0(
40
)
Addition to Existing Structure - Build

Serving Whippany, NJ and surrounding areas

Approved

In business since 2021

Free estimates

Emergency services offered

"Matt and the entire team of professionals at Prestige Design & Build were prompt, courteous, meticulous and hard working. My family and I are 100% pleased with the beautiful job they completed in our home and I definitely look forward to planning additional renovations with them in the near future. Much appreciation to Matt for his personable communication."
Demarest multiple room remodel
completion of renovation
Addition project progress
Rear addition project
Master bedroom suite

+542

Response time6 hrs
1 neighbors recently requested a quote
Recommended by66%of homeowners
All-Star Contractors of Hunterdon County, LLC
4.7(
37
)
Addition to Existing Structure - Build

Serving Whippany, NJ and surrounding areas

Approved

Super Service Award Winner

In business since 1970

Free estimates

Emergency services offered

"We had an excellent experience working with Bill and most of his crew on our home addition project. AllStar stood behind the quality of workmanship, which met our expectations. The crew was courteous, respectful of our home and most dependable. The Addition blends seamlessly with our existing structure and we couldn’t be happier with the final result. We highly recommend AllStar to anyone looking for high quality and very reasonable home renovations project."
Response time3 days
Response rate100%
2 neighbors recently requested a quote
Avatar for The TJB Legacy Group, LLC
The TJB Legacy Group, LLC
4.9(
39
)
Addition to Existing Structure - Build

Serving Whippany, NJ and surrounding areas

Approved

In business since 2005

Free estimates

Credit card accepted

"Carmelo and his team SET THE BAR for responsiveness and dedication to customer satisfaction. Legacy remodeled the front of our house, including a new front door, building a portico, fixing structural damage, siding, and window framing. Transparent every step of the way. Carmelo was flexible with decisions involving sourcing materials and was informative about our options as we made decisions throughout the project. We will be repeat customers in the future; I would trust Carmelo and his team with any project!"
Before
After
After
Kitchen Before
After Kitchen

+24

Response time1 day
Response rate97%
4 neighbors recently requested a quote
Giove Renovations
4.9(
23
)
Addition to Existing Structure - Build

Serving Whippany, NJ and surrounding areas

Approved

In business since 2004

Free estimates

Customers say: Quality work

"We had a great experience with Giove Renovations for our recent addition. The work was so well done, all inspections were passed on the first round, they were incredibly neat and finished before we expected them to. They gave us a timeline of 4-6 months to add on a family room, kitchen, bathroom, pantry and make modifications to the existing layout. We figured 4-6 months meant more like 6-8, but they finished in exactly 5 months from the first dig. Luca and Antonio are perfectionists and were very accommodating. Most importantly we felt they were very honest and trustworthy. We will definitely be calling Giove to do the next phases of our project."
Bathroom renovation
bathroom renovations
bathroom renovation
bathroom renovation
b

+11

Response time2 days
Response rate87%
2 neighbors recently requested a quote
Avatar for Inson Dubois Wood LLC
Inson Dubois Wood LLC
5.0(
17
)
Addition to Existing Structure - Build

Serving Whippany, NJ and surrounding areas

Approved

In business since 2005

Customers say: True professional

"We live in a prewar coop building in Manhattan and were in need of a kitchen, living and dining room/den renovation. Because of the limitations in our building, we were not optimistic that many changes could be made that would dramatically alter the feel/function of the space. Inson Wood proved us completely wrong. With his architectural eye and his impeccable design aesthetic we (and everyone who has been here before and after) experiences our apartment as an entirely different living space. Even family members are shocked at the transformation. I think that what Inson accomplished was the product of a few significant factors. First, Inson asks you what you want and seriously considers how you live. If Inson thinks that different approaches should be considered for what you want, he provides renderings of each option so that you can easily visualize and imagine them. Ultimately, Inson respects your preferences and works with them, elevating them to a level far above what you had imagined. Inson uses the highest quality vendors (whom we NEVER would have found) and expertly guides you through choices (note: follow his recommendations!!!)- our walls would never have had dimension and our kitchen backsplash never have been so unique (two examples) if not for the artisans that Inson uses. Inson is also willing to have you be as much or as little involved in the process as you want to be. I did go with Inson to choose many pieces of furniture but realized after a certain point that his taste point made me confident in him choosing much finishing work (ex: window treatments, decorative cushions, which I love) without me. As with all design work, there are always glitches and Inson was extremely responsive and responsible for taking care of those as they came up. We are nothing less than thrilled to come home each evening and enjoy our space, which feels like a luxurious retreat perfectly tailored to us."
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+11

Recommended by100%of homeowners
Avatar for EMILCO Construction, LLC
EMILCO Construction, LLC
4.9(
16
)
Addition to Existing Structure - Build

Serving Whippany, NJ and surrounding areas

Approved

In business since 2003

Free estimates

Emergency services offered

"Went more than I was expected to see beautiful job. I can't thank Emilco enough and everyone else in the crew participate in this is fantastic job .they are working from bottom of their heart as their own home. I am highly recommended for anyone who wants to go with professional work and enjoy peace of mind because you are in honest people handling your job. Emilco is available seven days in week to answer any questions and concerns He is working very hard to make you satisfied with the professional work. Trying to save you any money He can do. I very impressed with the Inspectors comments to please the work he done stated that I like to walk in clean job and people know what they doing!"
Remodeling - Kitchen & Bathroom Project
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+21

Response time2 days
Recommended by100%of homeowners
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FAQs for addition to existing structure building service projects in Whippany, NJ

You can typically raise your roof by four to eight feet, depending on your home's structure and roof design. The exact amount depends on factors like roof slope and framing support. Raising the roof creates additional interior space, enhances natural light, and increases your home's value. Consult a professional to determine the feasible height increase for your home.

Yes, you need a building permit to raise your roof. Obtaining a building permit ensures your project complies with local building codes and safety regulations. A professional contractor can assist with the permit and inspection process and ensure all legal and safety requirements are met. Your contractor will be familiar with building codes in your area, which can differ between cities or states.

While it's possible to raise a flat roof, it requires extensive structural modifications. Flat roofs lack the attic space and support structures of pitched roofs, so raising them involves significant engineering to ensure safety and durability. This process can be complex and costly, so professional assessment is essential before undertaking a project of this magnitude.

The Whippany, NJ homeowners’ guide to addition to existing structure building services

From average costs to expert advice, get all the answers you need to get your job done.