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Top-Rated Addition to existing structure builders in Hampton Bays - Updated Nov 2026

Avatar for Rea Professional Construction INC
Rea Professional Construction INC
5.0(
24
)
Addition to Existing Structure - Build

Serving Hampton Bays, NY and surrounding areas

Approved

In business since 2003

Free estimates

Emergency services offered

"Jaime and his crew were wonderful to work with. They stuck to the end of the job until every single item on the check list was done. This I find rare in the construction business. They were courteous and mindful of schedule. I recommend Rea Construction to anyone looking for quality work."
Before
Before
Bathroom Renovation
After
After

+223

Response time6 days
Recommended by100%of homeowners
Avatar for Arthur DeRosa Building and Remodeling
Arthur DeRosa Building and Remodeling
4.7(
13
)
Addition to Existing Structure - Build

Serving Hampton Bays, NY and surrounding areas

Approved

In business since 1986

Free estimates

Customers say: True professional

"Arthur gave us a fair and competitive estimate and was able to start work quickly thereafter. He and his team did an excellent job gutting and totally remodeling two bathrooms and a closet as well as redoing some of the wood flooring, moving vents, and moving hallways. Arthur himself was at the home everyday and did the important work himself. He also went the extra mile in helping us with small projects around the major project as they came up. He was extremely responsive in provided us with timely updates. When complications occurred (due to the house having not been renovated in 40 years) he was clear and helpful in keeping the project on schedule. He was extremely honest and I trusted him to be alone in my house for weeks on end with his team. I would/plan to work with Arthur again in the future for my home renovation projects."
Additional Photos
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Additional Photos

+20

Response time2 days
4 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Alta Renovations Corp
Alta Renovations Corp
5.0(
30
)
Addition to Existing Structure - Build

Serving Hampton Bays, NY and surrounding areas

Approved

Super Service Award Winner

In business since 2019

Free estimates

Warranties offered

"Jose and his crew did an outstanding job on our extensive interior and exterior renovation, which included a new addition. The project covered everything from a new structural roof with shingles and skylights to new construction windows and doors, siding, a Trex deck, and fully renovated kitchen, bathroom, and laundry room. They also refinished a bedroom and installed beautiful hardwood floors. As with any large project, a few unexpected challenges came up, but Jose handled them with professionalism and kept everything moving forward smoothly. His craftsmanship is excellent, and he’s not only easy to work with but also patient and highly skilled at problem-solving. I wouldn’t hesitate to hire Jose again for future projects and highly recommend him to anyone looking for quality work and a reliable contractor."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+26

Response time8 hrs
22 neighbors recently requested a quote
Recommended by80%of homeowners
Avatar for A.S.M. Home Improvements
A.S.M. Home Improvements
5.0(
12
)
Addition to Existing Structure - Build

Serving Hampton Bays, NY and surrounding areas

Approved

In business since 2021

Free estimates

Credit card accepted

"I used K&A Home Repairs to rebuild my deck. I found them to be dependable, professional and experienced for what I needed. Anthony came at the appointment time to provide a fair estimate and followed the work schedule as close to the plan as He could, weather permitting. I am extremely pleased with my new deck and will be calling K&A for more projects on my home."
Remodeling
Remodeling
Remodeling
Remodeling
2 of 2
fire pit

+48

Response time11 hrs
11 neighbors recently requested a quote
Recommended by58%of homeowners
Avatar for Hampton Design and Build
Hampton Design and Build
4.4(
31
)
Addition to Existing Structure - Build

Serving Hampton Bays, NY and surrounding areas

Approved

In business since 2002

Free estimates

Credit card accepted

"Review Hampton Design and Build inc Restored our house to its former luster after a pipe burst causing major damage to our main floor and basement. Dale and Diane worked tirelessly on our behalf to replace sheetrock insulation, repair the heating plumbing and electricity. They oversaw the rebuilding of our kitchen and laundry room with new cabinetry and countertops, replaced our beautiful wood floors in the common living area as well as replaced the basement carpeting with core-tech. Diane was very helpful with kitchen design and interior decorating which updated our house. Dale and Diane were easy to work with-consulting with us, keeping us informed and taking care of all the details. Dale guided us through the entire process as we would not have known where to begin therefore we would highly recommend using Dale and Diane at Hampton Design and Build Inc."
East Quogue Kitchen
East Quogue Kitchen and Living area
Fireplace Design and Custom Woodworking
Fireplace Design and Custom Woodworking
Custom Fireplace

+36

Response time1 day
14 neighbors recently requested a quote
Recommended by92%of homeowners
Avatar for Webb Builders
Webb Builders
5.0(
5
)
Addition to Existing Structure - Build

Serving Hampton Bays, NY and surrounding areas

Approved

In business since 2000

Free estimates

Small jobs welcome

"If I had to start all over again, I can honestly say, I wouldnâ t change a thing. My decision to use Webb Builders, Inc. and Webbstar Networking & Technology Solutions has been an absolute pleasure! I have known and worked with Dean for over 25 years. Dean Webb built an addition to my home and it came together so perfectly that you would never know the original from the addition, except that the addition was built much better than the original. Any follow up work with Dean Webb and his outstanding crew has been attended to with ease and quick responses. The attention to detail and time spent on every project was not only an enjoyable experience but well thought out for the very best result. I have had numerous Internet and WiFi issues in the house and Dean not only redesigned a new WiFi plan, which gave us better connectivity but also covered the outdoor space which was a great bonus during the summer months. I could go on and on but in closing, my needs were all met beyond expectation and any post maintenance has been completed with ease. Dean is an extraordinary individual and anyone who has the pleasure of working with him should expect to be extremely happy with the outcome of their project!"
Parish Hall
Twin Towers
AV Rack
Network equipment
Surveillance System

+50

Response time8 hrs
Response rate97%
22 neighbors recently requested a quote
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FAQs for addition to existing structure building service projects in Hampton Bays, 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 Hampton Bays, 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.