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Top-Rated Addition to existing structure builders in Floral Park - Updated Nov 2026

Avatar for CHATEL Construction Corp
CHATEL Construction Corp
5.0(
85
)
Addition to Existing Structure - Build

Serving Floral Park, NY and surrounding areas

Approved

In business since 1983

Free estimates

Warranties offered

"Chatel Construction is by far one of the best Long Island has to offer. Not only are they professional and knowledgeable, they are also flexible and provide full service support before, during and after construction! They are the premiere General Contractor the Junior League of Long Island will rely on for the entire repair and upgrade process of their historic landmark building that houses their thrift shop and headquarters. We had the honor of having them come onboard and support us through 8 months of growing and changing scope and they became the ideal partner through this process. Paul and Scott are remarkable and hire on the best workers to make your project as unique and high quality as they possibly can! We cannot wait to continue working alongside of them!"
Response time3 days
Response rate100%
4 neighbors recently requested a quote
Avatar for Fine Designs by US Home Remodeling
Fine Designs by US Home Remodeling
5.0(
32
)
Addition to Existing Structure - Build

Serving Floral Park, NY and surrounding areas

Approved

Super Service Award Winner

In business since 2009

Free estimates

Emergency services offered

"Fine Design did a great job on our bathroom from the gutting to the finish. Dave and Lenny were easy to work with and the workers were great! Cleaned everything up each day and were very polite. The quality of the work is outstanding. Everyone was very professional and was a much more pleasant experience compared to other contractors I have used. Thanks again-I highly recommend Fine Design."
Remodeling - Kitchen & Bathroom Project
Remodeling - Kitchen & Bathroom Project
Remodeling - Kitchen & Bathroom Project
Remodeling - Kitchen & Bathroom Project
Remodeling - Kitchen & Bathroom Project

+149

Response time1 day
4 neighbors recently requested a quote
Recommended by96%of homeowners
Avatar for BuildingLI.com - BLI Facilities LLC
BuildingLI.com - BLI Facilities LLC
5.0(
32
)
Addition to Existing Structure - Build

Serving Floral Park, NY and surrounding areas

Approved

In business since 2017

Free estimates

Emergency services offered

"Eddie was great to work with! We had a limited time frame to adhere to town inspections and Eddie and his team knew exactly what we needed and quickly got the job done. The results were great and even the inspector acknowledged the impressive repair. They were able to put a knocked out garage wall back on the foundation and repair the interior dry wall. I would recommend this company for any professional contract work due to their reasonable price, ease to work with and quality of work."
before demo
kitchen demolition
demolition complete
kitchen tile job in progress
kitchen tile

+172

Response time7 hrs
Recommended by76%of homeowners
Avatar for Tanem Construction, Inc.
Tanem Construction, Inc.
4.6(
92
)
Addition to Existing Structure - Build

Serving Floral Park, NY and surrounding areas

Approved

Super Service Award Winner

In business since 1979

Free estimates

Small jobs welcome

"Paul, Gene and their teams were delightful to work with. They're a busy company but managed to be on time, respond to our questions and felt accessible throughout the project. The members of the different crews were polite, professional and always on time. As with any project, there was a small issue that we wanted adjusted, and no problem at all. It was taken care of immediately. They were able to make suggestions without being aggressive and we welcomed their input. I only wish we had additional funding to do a few more projects! I am pleased to recommend this company without hesitation."
Queens Bathroom
Queens Bathroom
Garden City Basement Remodel
GCCC Pier Footings
Garden City Basement Remodel

+157

Response time1 day
Response rate94%
24 neighbors recently requested a quote
Avatar for Inson Dubois Wood LLC
Inson Dubois Wood LLC
5.0(
17
)
Addition to Existing Structure - Build

Serving Floral Park, NY 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
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+11

Recommended by100%of homeowners
Avatar for TKT REMODELING GROUP LLC
TKT REMODELING GROUP LLC
4.6(
11
)
Addition to Existing Structure - Build

Serving Floral Park, NY and surrounding areas

Approved

Free estimates

Warranties offered

Credit card accepted

"TKT Remodeling Group LLC is professional, fast & responsive, and very skilled in their work. They did an incredible job replacing our asbestos tiles in the boiler room, leveling out the floor, and adding tiles. They also installed an excellent fire proof door for the room, and fixed our dryer vent so that it was up to code. Additionally, they installed 4 mini splits in the house. They were very diligent in their work and quality control. After the installation they tested all the units and found out one was malfunctioning. They immediately called the supplier to help us get a new replacement unit, advocating on our behalf and pushing back against the supplier's suggestion of simply replacing a part in the malfunctioning unit, and had it replaced in one day. They go above and beyond in all aspects of their work and are very pleasant to work with. We are incredibly satisfied with their fast, and efficient work and highly recommend their services. We'll definitely be using them in the future for any home projects!"
Kitchen  Remodeling Project
Heating & A/C Project
General Remodeling Project
Kitchen  Remodeling Project
Heating & A/C Project

+23

Response time2 days
3 neighbors recently requested a quote
Recommended by80%of homeowners
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FAQs for addition to existing structure building service projects in Floral Park, NY

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 Floral Park, NY 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.