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Find Addition to existing structure builders in Mahwah

Avatar for BUILT-WELL BUILDERS, LLC
BUILT-WELL BUILDERS, LLC
4.8(
160
)

Serving Mahwah, 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
Recommended by97%of homeowners
Avatar for CSZ Construction
CSZ Construction
4.6(
67
)

Serving Mahwah, 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 by95%of homeowners
Avatar for Prestige Design & Build Corp.
Prestige Design & Build Corp.
5.0(
40
)

Serving Mahwah, 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

+497

Response time6 hrs
Recommended by66%of homeowners
Avatar for H4 Construction, LLC
H4 Construction, LLC
4.6(
10
)

Serving Mahwah, NJ and surrounding areas

Approved

In business since 2017

Free estimates

Warranties offered

"We hired Alan to handle the renovation and expansion of our house, which included adding a second floor and building an addition. After meeting with various contractors, Alan stood out to us. He was not only highly professional but also made us feel a personal connection. Alan was very transparent with his quote and conscientious about the costs of "change orders" throughout the renovation. He dedicated his time to managing the entire renovation, from demolition to completion. True to his promise, we were able to move back into our home within seven months. We love our new house! Alan turned our dream house into a reality for our family!"
New build
Renovation of 2 bedroom c
large addition
Addition
Large addition

+32

Response time1 day
Response rate97%
42 neighbors recently requested a quote
Avatar for EMILCO Construction, LLC
EMILCO Construction, LLC
4.9(
16
)

Serving Mahwah, 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
Additional Photos
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+21

Response time2 days
2 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Inson Dubois Wood LLC
Inson Dubois Wood LLC
5.0(
17
)

Serving Mahwah, 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."
Additional Photos
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Additional Photos

+11

25 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for JM Construction  and  Remodeling
JM Construction and Remodeling
4.4(
23
)

Serving Mahwah, NJ and surrounding areas

Approved

In business since 2019

Free estimates

Credit card accepted

"Mike did a fantastic job! I initially reached out to him to paint an apartment and wound up having him also replace a kitchen and renovate a bathroom. Both results exceeded my expectations! Great attention to detail."
Kitchen Renovation
Kitchen Renovation
Kitchen Renovation
Kitchen Renovation
Kitchen Renovation

+9

2 neighbors recently requested a quote
Recommended by73%of homeowners
Avatar for Building Concepts of New Jersey LLC
Building Concepts of New Jersey LLC
5.0(
8
)

Serving Mahwah, NJ and surrounding areas

Approved

In business since 2010

Free estimates

Customers say: True professional

"Everything the building concepts did for me from beginning to end was exactly what they said was going to happen before signing the contract. I am more than pleased, and I will highly recommend them."
Response time2 days
10 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for CHARLY'S PAVING & SEALCOATING LLC
CHARLY'S PAVING & SEALCOATING LLC
4.8(
16
)

Serving Mahwah, NJ and surrounding areas

Approved

In business since 2005

Free estimates

Emergency services offered

"Very well am highly satisfied with the work. We had used them back in September and were so pleased with their work then that we decided to enlarge our original project and called them back to do it. Felt they listened and were responsive to our requests and were always courteous and aimed always to make sure we were totally satisfied."
Additional Photos
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Additional Photos

+2

Response time1 day
Response rate100%
2 neighbors recently requested a quote
Avatar for Atlantic 1 Construction LLC
Atlantic 1 Construction LLC
4.7(
12
)

Serving Mahwah, NJ and surrounding areas

Approved

Super Service Award Winner

In business since 2016

Free estimates

Emergency services offered

"Wonderful team to work with. Very professional and creative in the same time. In addition very affordable, no hidden fees or cost and work is top notch. I highly recommend their services."
Remodeling - General Project
Painting - Interior Project
Handyman Services Project
Remodeling - General Project
Painting - Interior Project

+5

22 neighbors recently requested a quote
Recommended by58%of homeowners
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FAQs for addition to existing structure building service projects in Mahwah, 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 Mahwah, 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.