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Top-Rated Addition to existing structure builders in North Babylon - Updated Nov 2026

Avatar for Arthur DeRosa Building and Remodeling
Arthur DeRosa Building and Remodeling
4.7(
13
)
Addition to Existing Structure - Build

Serving North Babylon, NY and surrounding areas

Approved

In business since 1986

Free estimates

Customers say: True professional

"Artie & Mike are simply the best. I used them to: 1) Build a LARGE extension to my house and redo my entire kitchen and dining room. The job was completed on time and on budget. Throughout the process Artie was transparent & professional. EVERY person who has stepped into my house has complimented at the detailed perfection. 3) Artie built us a custom walk in pantry 2) Built 2 large decks in the backyard as well as an outdoor shower. This project was completed on time, on budget while exceeding all expectations. If you are looking for a contractor and crew that is responsible, responsive, polite, creative and delivers the HIGHEST LEVEL of quality - Artie is the one."
Additional Photos
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+20

Response time2 days
4 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for All Island Additions and Renovations
All Island Additions and Renovations
5.0(
20
)
Addition to Existing Structure - Build

Serving North Babylon, NY and surrounding areas

Approved

In business since 2025

Free estimates

Credit card accepted

"All In One Comfort Solutions has been great to work with. They take their time, approach the issues correctly, and provide great value. I contacted them after feeling uncomfortable with a prior assessment from another company, which turned out to be a great decision. Highly recommended."
Before
After
Kitchen remodel
Bathroom remodel
Bathroom remodel

+71

Response time1 day
Response rate100%
Recommended by81%of homeowners
Avatar for Alta Renovations Corp
Alta Renovations Corp
5.0(
30
)
Addition to Existing Structure - Build

Serving North Babylon, NY and surrounding areas

Approved

Super Service Award Winner

In business since 2019

Free estimates

Warranties offered

"Excellent! Alta Renovations did my bathroom from the studs out. Tile, sheetrock, floor, vanity and the plumbing and towel hardware. The job was was in a co-op, with very frustrating "rules" and "requirements ". Most contractors would not want to participate (paperwork, time schedules and parking restrictions). Jose, the owner of Alta, abided by all the rules, whiles still keeping a smile!!! His workers worked neatly and orderly, knew exactly what had to be done, and did it. Very pleased. I'm recommending him to all my ? ? ? ? ?"
Additional Photos
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Additional Photos

+26

Response time8 hrs
22 neighbors recently requested a quote
Recommended by80%of homeowners
Memo's Home Renovations, Inc.
4.9(
153
)
Addition to Existing Structure - Build

Serving North Babylon, NY and surrounding areas

Approved

In business since 2013

Free estimates

Emergency services offered

"Memo and Abby are fantastic. The communication is exceptional in both clarity and attentiveness, and the work quality - from prep to the job itself to clean up - itâ s the tops. I engaged Memo to build/install and paint, finish, and wallpaper a double-sided wall with some mill work and moulding details. For the same room I also engaged him to purchase/hang/install a solid core slab door in an existing doorway. Though not a huge job, as a designer I was really keen to work with someone on the details - and Memo was so easy to do this with and delivered on everything I wanted. I will absolutely be hiring Memo again for more things and bigger jobs."
Response time5 hrs
2 neighbors recently requested a quote
Recommended by78%of homeowners
Avatar for Homes & Beyond, Inc.
Homes & Beyond, Inc.
4.8(
20
)
Addition to Existing Structure - Build

Serving North Babylon, NY and surrounding areas

Approved

In business since 2008

Free estimates

Emergency services offered

"Highly highly recommend Homes & Beyond….Miguel is a true professional from start to finish, communication was at 100% all the way throughout the project, I’ll be hiring them for other projects I have….and cannot say enough about his crew, polite, knowledgeable and kept my home so clean after every day til end of project!!!….they totally exceeded my expectations!!!!"
Kitchen
Kitchen
Kitchen
Kitchen open layout
Kitchen open layout

+50

Response time6 hrs
Response rate100%
5 neighbors recently requested a quote
Classic Home Design & Construction, LLC
5.0(
9
)
Addition to Existing Structure - Build

Serving North Babylon, NY and surrounding areas

Approved

In business since 2015

Free estimates

Emergency services offered

"Definitely I would recommend this company to do remodeling work, bathroom and kitchen. They did a tremendous job and very professional. As a homeowner, you want to hire a company that reliable, neat, detail oriented, quick and efficient. For that, I am totally satisfied."
Westbury 2021 Bath
Westbury 2021 Bath
Westbury 2021 Bath
Westbury reverse Gable remodel
Westbury 2021 Backyard

+38

Response time10 hrs
Response rate91%
4 neighbors recently requested a quote
Avatar for A.S.M. Home Improvements
A.S.M. Home Improvements
5.0(
12
)
Addition to Existing Structure - Build

Serving North Babylon, NY and surrounding areas

Approved

In business since 2021

Free estimates

Credit card accepted

"We cannot say enough about ASM Home Improvement. The owner Anthony was absolutely amazing every step of the way. First he put our mind at ease to what we wanted was not only possible but was going to be great and great it was ! Him and his crew were professional and sincerely cared about the job. The workmanship was top notch. Anthony’s talent to make our deck beautiful truly showed and we absolutely love it ! We will hire Anthony and his crew again for our next project and highly recommend him and his company. He will make your vision a reality!"
Remodeling
Remodeling
Remodeling
Remodeling
2 of 2
fire pit

+48

Response time11 hrs
11 neighbors recently requested a quote
Recommended by58%of homeowners
JMC Services Corporation
5.0(
14
)
Addition to Existing Structure - Build

Serving North Babylon, NY and surrounding areas

Approved

In business since 2022

Free estimates

Offers commercial services

"Jeff and his crew were amazing! If I could give them 10 stars I would. We needed a bathroom ceiling repair and an exhaust fan installed. Jeff suggested crown molding for around the entire bathroom and it came out gorgeous. Not only are they great at what they do but theyâ re professional, honest and so neat with their work. I was fearing a dusty mess and there was none. If youâ re looking for someone to do anything and everything, this is the company to hire!"
Recommended by64%of homeowners
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FAQs for addition to existing structure building service projects in North Babylon, 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 North Babylon, 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.