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Top-Rated Addition to existing structure builders in Township Of Washington - Updated Nov 2026

Avatar for BUILT-WELL BUILDERS, LLC
BUILT-WELL BUILDERS, LLC
4.8(
167
)
Addition to Existing Structure - Build

Serving Township Of Washington, 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 Township Of Washington, 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 Township Of Washington, 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
Recommended by66%of homeowners
Avatar for EMILCO Construction, LLC
EMILCO Construction, LLC
4.9(
16
)
Addition to Existing Structure - Build

Serving Township Of Washington, 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
1 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for CHARLY'S PAVING & SEALCOATING LLC
CHARLY'S PAVING & SEALCOATING LLC
4.8(
16
)
Addition to Existing Structure - Build

Serving Township Of Washington, NJ and surrounding areas

Approved

In business since 2005

Free estimates

Emergency services offered

"Angelo is great and is willing to go above and beyond your expectations to give you a great look and experience with the contracting job. He is a responsive contractor and if he misses you, he will follow up right away before the job gets started to make sure that all the plans are set. He is present and constantly checking in with the clients and the contracting crew to make sure things are going as scheduled. When the work is completed making sure that everything was to my liking. everything is going well. His team works very well and are focused on the details. They made sure to get all the right materials for the job, to the right of flooring and grout for my shower, to the best kind of paint and the color scheme that works best in a finished basement During a painting job when I asked what works best from a contractors view Angelo gave me a suggestion that made the rooms look even better than I thought it would. He is always working to give you best outcome for any job he takes on. I highly recommend Charles Renovations for any contracting work. Angelo and his team are exceptional!"
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+2

Response time1 day
Response rate100%
1 neighbors recently requested a quote
Ernest & Sons General Contractors
4.1(
23
)
Addition to Existing Structure - Build

Serving Township Of Washington, NJ and surrounding areas

Approved

In business since 1997

Customers say: Quality work

"They are not local to my area. Please, hire local. And this is for Angi: Try not to recommend contractors who are a significant distance away, in this case around 80 miles (and 2 states) away. Great website, appears to be professionally designed and maintained, I like what they do (judging from the content in the website) but I am outside their service area. I don't live in that area. If I owned a home or apartment in that area, I would hire them."
Additional Photos
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7 neighbors recently requested a quote
Recommended by88%of homeowners
Avatar for GC360 CONSTRUCTION LLC
GC360 CONSTRUCTION LLC
5.0(
9
)
Addition to Existing Structure - Build

Serving Township Of Washington, NJ and surrounding areas

Approved

In business since 2024

Free estimates

Emergency services offered

"I had an urgent request to install shelves b/c the other person I hired never showed up. Belayeth reached out to me right away and came out the same evening. They did a wonderful job installing multiple shelves in my guest room, were clean and efficient, very friendly and experienced. I was so excited to see that they provide so many services. Highly recommend and will definitely use them going forward. They were wonderful."
Bathroom remodeling
Bathroom remodeling
Bathroom remodeling
Bathroom remodeling
Bathroom remodeling

+41

4 neighbors recently requested a quote
Avatar for Home Quality Remodeling
Home Quality Remodeling
5.0(
7
)
Addition to Existing Structure - Build

Serving Township Of Washington, NJ and surrounding areas

Approved

In business since 2004

Free estimates

Warranties offered

"Home Quality Remodeling took such great care of us with our project. We had a pleasant experience with Jacob, he is organized and professional. We will definitely return to them for future projects."
3D Bath Design
3D Luxury Shower
3D Custom Bathroom
3D Grey Modern
3D Bath & Storage

+59

Response time1 day
Response rate100%
8 neighbors recently requested a quote
Avatar for Sovereign Homes, LLC
Sovereign Homes, LLC
4.7(
13
)
Addition to Existing Structure - Build

Serving Township Of Washington, NJ and surrounding areas

Approved

In business since 2009

Free estimates

Warranties offered

"Sovereign Homes brought our vision to life! We added a primary suite to our home, replacing an existing crawl space attic. Rey helped us step-by-step throughout the project. We appreciated his clear communication and efforts with the town and the contractors. We love the luxurious addition to our home!"
Front View
Entrance
Kitchen
Hallway
Master Bedroom

+8

Response time2 days
Response rate93%
3 neighbors recently requested a quote
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FAQs for addition to existing structure building service projects in Township Of Washington, 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 Township Of Washington, 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.