Top-rated addition to existing structure builders.

Get matched with top addition to existing structure builders in Hampton Bays, NY

Enter your zip and get matched with up to 3 pros

Matching on HomeAdvisor

Share some details icon
Share some details about your home project.
Match with local pros icon
Within moments, match with highly-rated local pros.
Compare quotes icon
Compare quotes and choose the best pro for the job.

Addition to existing structure builders in Hampton Bays

MRJ Industries, Ltd.

27 Quail Run
4.29(
7
)
Approved Pro

MRJ Industries, Ltd.

27 Quail Run
4.29(
7
)
Approved Pro
Customers say: Quick response
39 years of experience
Free onsite estimate

We are dedicated to providing our clients with the very best in general contracting, from electrical to decks, siding, roofing, remodels, and renovations. With over 30 years of experience, we take an enormous amount of pride in the attention of detail, put into each of the projects we contract. We are known for our quality work, and the integrity of our business practices. We look forward to building long term relationships with our clients, and guarantee your satisfaction. Call today for a quote! As an owner operator I am personally involved with every project. John

"John was great initially - getting there and tackling the immediate problem and answering my calls. We had a short in the electrical heating fan/motor in the floor that was potentially dangerous and could have caused a fire so he replaced the breaker and rewired the fan/motor. However, when he left we noticed that the fan was not running in the box and he told us to detach the wires which I felt was risky and also meant the problem was not fixed. He said he would come back the following Monday to inspect the rest of the wires underneath the house and he never did. He was also supposed to send me a photo of the burned wires, a work order/receipt for my files, and never did. I texted him about Monday and about replacing the fan/motor - either to let us what it was called and we would replace it ourselves or give us the cost of replacing one or all 3 boxes. He never responded so we still have a heating system that is not fixed and perhaps dangerous if only running on two fan motors ."

Gillian d on November 2018

We are dedicated to providing our clients with the very best in general contracting, from electrical to decks, siding, roofing, remodels, and renovations. With over 30 years of experience, we take an enormous amount of pride in the attention of detail, put into each of the projects we contract. We are known for our quality work, and the integrity of our business practices. We look forward to building long term relationships with our clients, and guarantee your satisfaction. Call today for a quote! As an owner operator I am personally involved with every project. John

"John was great initially - getting there and tackling the immediate problem and answering my calls. We had a short in the electrical heating fan/motor in the floor that was potentially dangerous and could have caused a fire so he replaced the breaker and rewired the fan/motor. However, when he left we noticed that the fan was not running in the box and he told us to detach the wires which I felt was risky and also meant the problem was not fixed. He said he would come back the following Monday to inspect the rest of the wires underneath the house and he never did. He was also supposed to send me a photo of the burned wires, a work order/receipt for my files, and never did. I texted him about Monday and about replacing the fan/motor - either to let us what it was called and we would replace it ourselves or give us the cost of replacing one or all 3 boxes. He never responded so we still have a heating system that is not fixed and perhaps dangerous if only running on two fan motors ."

Gillian d on November 2018


KG Home Improvement

29 Rabbit Run
5.00(
1
)
Approved Pro

KG Home Improvement

29 Rabbit Run
5.00(
1
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
21 years of experience

Great work at great price! A fresh coat of paint or stain can bring new life to rooms, add curb appeal to homes and commercial buildings, and help protect your investment for years to come. We are happy to bid on all types of painting in the Riverhead area. We will meet with you, at your convenience, and provide you with a free, written, detailed estimate – no surprise charges added after the fact. Locally owned and operated, we're a small company with big capabilities, including interior painting, exterior painting, commercial painting, deck finishing, and interior design.

"They did a great job, and stayed on schedule. There bid was very competitive. Would hire again."

Charles S on April 2020

Great work at great price! A fresh coat of paint or stain can bring new life to rooms, add curb appeal to homes and commercial buildings, and help protect your investment for years to come. We are happy to bid on all types of painting in the Riverhead area. We will meet with you, at your convenience, and provide you with a free, written, detailed estimate – no surprise charges added after the fact. Locally owned and operated, we're a small company with big capabilities, including interior painting, exterior painting, commercial painting, deck finishing, and interior design.

"They did a great job, and stayed on schedule. There bid was very competitive. Would hire again."

Charles S on April 2020


Avatar for Exterior Team Home Services, Inc.

Exterior Team Home Services, Inc.

359 North Ocean Avenue Apt. 1
4.95(
22
)
Approved Pro

Exterior Team Home Services, Inc.

359 North Ocean Avenue Apt. 1
4.95(
22
)
Approved Pro
Customers say: Quality work
Recommended by 95% of Angi customers
Recommended by 95% of HomeAdvisor customers
9 years of experience

Exterior Team Home Services, Inc takes great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job. Call Exterior Team Home Services, Inc today!

"Ronald and his Team did an excellent job for a very good price. Very professional. Pointed out some things that needed attention and then took care of it. The workmanship and customer service is better than any other craftman I have ever hired. I will keep Exterior Team Home Service number available to recommend to anyone that asks if "I know someone who...." I trust Exterior Team Home and will use them in the future."

Ed S on September 2023

Exterior Team Home Services, Inc takes great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job. Call Exterior Team Home Services, Inc today!

"Ronald and his Team did an excellent job for a very good price. Very professional. Pointed out some things that needed attention and then took care of it. The workmanship and customer service is better than any other craftman I have ever hired. I will keep Exterior Team Home Service number available to recommend to anyone that asks if "I know someone who...." I trust Exterior Team Home and will use them in the future."

Ed S on September 2023


Avatar for ES CARPENTRY

ES CARPENTRY

PO Box 6591
5.00(
2
)
Approved Pro

ES CARPENTRY

PO Box 6591
5.00(
2
)
Approved Pro
12 years of experience
Free onsite estimate

ES CARPENTRY is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests, and make their concerns the basis of our business.

"Just awesome, friendly, on time, excellent pricing, meticulous workers, worked hard can't speak highly enough of them"

James S on August 2025

ES CARPENTRY is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests, and make their concerns the basis of our business.

"Just awesome, friendly, on time, excellent pricing, meticulous workers, worked hard can't speak highly enough of them"

James S on August 2025


Avatar for Agate & Co. Builders

Agate & Co. Builders

PO Box 1254
4.96(
13
)
Approved Pro

Agate & Co. Builders

PO Box 1254
4.96(
13
)
Approved Pro
Customers say: Quick response
Recommended by 92% of Angi customers
Recommended by 92% of HomeAdvisor customers
17 local quotes requested

If you are looking for an experienced, reliable, and honest contractor to help you with your next construction project then consider Agate & Co. Builders. As a father and son team we have performed a variety of construction projects in the New York Tri-State area including; kitchens, baths, decks, windows, doors, flooring, trim, siding, tile, additions, and finished basements. At Agate & Co. Builders we have more than 35 years of construction experience working for us. We pride ourselves on our long history of outstanding craftsmanship and customer service, which is unparalleled in the industry. We remain a small construction company that performs most of the work ourselves using a few, hand-selected and highly qualified sub-contractors when needed. This consistently allows our high standards to be applied and is demonstrated in the quality of our work. We truly love what we do and look forward to helping you make the home of your dreams.

"Jim and his crew went over and above our expectations. They did a beautiful job on our new deck. When completed, they cleaned up and carted away all scraps. A truly professional job by all."

William B on May 2024

If you are looking for an experienced, reliable, and honest contractor to help you with your next construction project then consider Agate & Co. Builders. As a father and son team we have performed a variety of construction projects in the New York Tri-State area including; kitchens, baths, decks, windows, doors, flooring, trim, siding, tile, additions, and finished basements. At Agate & Co. Builders we have more than 35 years of construction experience working for us. We pride ourselves on our long history of outstanding craftsmanship and customer service, which is unparalleled in the industry. We remain a small construction company that performs most of the work ourselves using a few, hand-selected and highly qualified sub-contractors when needed. This consistently allows our high standards to be applied and is demonstrated in the quality of our work. We truly love what we do and look forward to helping you make the home of your dreams.

"Jim and his crew went over and above our expectations. They did a beautiful job on our new deck. When completed, they cleaned up and carted away all scraps. A truly professional job by all."

William B on May 2024


Avatar for EDG Renovations

EDG Renovations

785 Terry Rd
4.81(
36
)
Approved Pro

EDG Renovations

785 Terry Rd
4.81(
36
)
Approved Pro
Customers say: Quick response
Recommended by 94% of Angi customers
Recommended by 94% of HomeAdvisor customers
10 local quotes requested

My name is Edward Giarrizzo, proud owner of EDG Renovations. We are a company that prides ourselves in providing the highest quality product in the industry. We specialize in custom kitchen, bathroom, basement and full interior/exterior remodels. Our employees are craftsmen who love what they do and it shows through the quality in the work they produce. We control the job from start to finish to insure no detail is overlooked. From design consultation to insure our finished product is exactly what you invisioned. To setting up protective barriers during demolition to keep your home clean and safe for your family to live in. Managing mechanical subcontractors who have been carefully vetted to insure only the best professionals are working on your home. Custom carpentry and trim work done at the highest quality standard. Finally our specialized finishing team will come in with the knowledge to finish any type of surface with the correct products and preparation. Schedule your free quote!

"From the minute I met Eddie, the owner of EDG, I felt comfortable. He listened and understood my vision. His workers were courteous and showed up on time. I could not ask for better service."

Nancy R on May 2023

My name is Edward Giarrizzo, proud owner of EDG Renovations. We are a company that prides ourselves in providing the highest quality product in the industry. We specialize in custom kitchen, bathroom, basement and full interior/exterior remodels. Our employees are craftsmen who love what they do and it shows through the quality in the work they produce. We control the job from start to finish to insure no detail is overlooked. From design consultation to insure our finished product is exactly what you invisioned. To setting up protective barriers during demolition to keep your home clean and safe for your family to live in. Managing mechanical subcontractors who have been carefully vetted to insure only the best professionals are working on your home. Custom carpentry and trim work done at the highest quality standard. Finally our specialized finishing team will come in with the knowledge to finish any type of surface with the correct products and preparation. Schedule your free quote!

"From the minute I met Eddie, the owner of EDG, I felt comfortable. He listened and understood my vision. His workers were courteous and showed up on time. I could not ask for better service."

Nancy R on May 2023


Avatar for HD Renovations

HD Renovations

25-89 44th St
4.73(
101
)
Approved Pro

HD Renovations

25-89 44th St
4.73(
101
)
Approved Pro
Customers say: Quality work
Recommended by 93% of Angi customers
Recommended by 93% of HomeAdvisor customers
395 local quotes requested

With my years of experience we have mastered in becoming a pro in all interior renovations and specialized in door and frame installation for interior and exterior doors. Kitchen Installation with best outcome results and detailing and bathroom remodeling. Fully licensed and insured!!!

"Dom and his crew were very professional and pleasant to deal with. Strong communication, swift responses throughout, stayed on track with deadlines, and very reliable. The work came out beautifully. I would 100% recommend and hire again for future work."

Matthew R on April 2025

With my years of experience we have mastered in becoming a pro in all interior renovations and specialized in door and frame installation for interior and exterior doors. Kitchen Installation with best outcome results and detailing and bathroom remodeling. Fully licensed and insured!!!

"Dom and his crew were very professional and pleasant to deal with. Strong communication, swift responses throughout, stayed on track with deadlines, and very reliable. The work came out beautifully. I would 100% recommend and hire again for future work."

Matthew R on April 2025


Avatar for Arthur DeRosa Building and Remodeling

Arthur DeRosa Building and Remodeling

10 Aldrich St
5.00(
12
)
Approved Pro

Arthur DeRosa Building and Remodeling

10 Aldrich St
5.00(
12
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
69 local quotes requested

We are a building, remodeling, home improvement firm backed with 31 yrs experience. I, Arthur DeRosa, personally over see every project, big or small, from start to finish. I have an artists soul and every project that I am privileged to do is a reflection of that. With performance backed by experience and attention to detail, your project will be in good hands. The number of employees varies depending on work load. Sub-contractors are used when necessary. Proposals and estimates are free and include payment schedules with start and completion dates. Super Service Award winner for 2016! Call us today to schedule your appointment - (631) 774-1231

"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."

Constantine M on March 2023

We are a building, remodeling, home improvement firm backed with 31 yrs experience. I, Arthur DeRosa, personally over see every project, big or small, from start to finish. I have an artists soul and every project that I am privileged to do is a reflection of that. With performance backed by experience and attention to detail, your project will be in good hands. The number of employees varies depending on work load. Sub-contractors are used when necessary. Proposals and estimates are free and include payment schedules with start and completion dates. Super Service Award winner for 2016! Call us today to schedule your appointment - (631) 774-1231

"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."

Constantine M on March 2023


Avatar for Pristine East End Contracting

Pristine East End Contracting

25 Roberts Rd West
4.87(
76
)
Approved Pro

Pristine East End Contracting

25 Roberts Rd West
4.87(
76
)
Approved Pro
Customers say: True professional
Recommended by 94% of Angi customers
Recommended by 94% of HomeAdvisor customers
308 local quotes requested

Pristine East End Contracting is a Small, Full Service, Family Owned and Operated, General Remodeling Contractor, Servicing all of Long Island, Located on, & predominately serving the East End of Suffolk County. Devoted To Quality & Personnel Attention. We Specialize in All Phases of Home Improvements, Residential & Commercial Construction. We offer Home Remodeling & Design Services, Kitchen and Bathroom Remodeling & Design, Basement Remodeling & Design, Whole House Remodeling, Historical Restorations, Renovations, New Construction, Home Improvements, Commercial Services, and Handyman Contracting Services. Rarely has a Remodeling Contractor been so Dedicated To Providing The Highest Quality Of Craftsmanship, most often not offered by the majority of Remodeling Contractors, and Guaranteed Satisfaction To Each And Every Customer. The Customer’s Best Interests Are Our Top Priority. We Really Care About Our Clients Home Improvement and Home Remodeling Projects. This is further shown through our attentiveness to the bottom line. No one likes overruns, when it’s imperative that budgets are met, Pristine East End Contracting is the only Remodeling Contractor For Your Home Remodeling Project. Owned and Operated by Remodeling & Design Contractor / Master Craftsman Nick DeRosa, who's Meticulous and Thorough Approach to your Home Improvement / Home Remodeling project is unmatched by any other Remodeling Contractor. "Pristine East End Contracting Offers an Unparalleled Attention To Detail, & views Quality Workmanship, Reliability, & Affordability, As The Very Foundation For Producing Results That Far Exceed Customer’s Expectations." Whether your Remodeling a Home, Kitchen, Bathroom, Basement, Office Building, Or Warehouse, not many other Remodeling Contractors will give you the Personalized Attention & Utmost Professionalism Your Home Improvement/Remodeling Project Deserves. With an A+-Rating on the Better Business Bureau, and an A-Rating on Angie's List, Completely Absent Of Any Complaints, (Unheard Of By Most Remodeling Contractors), you know your starting with Professionalism and Trust. You can sleep easy knowing your Home Improvement / Home Remodeling Project Is Truly In Caring, Qualified, Trustworthy Hands. Next time your Renovating your Home, Bathroom, Kitchen, Basement, Or Place Of Business, Read the Reviews, and allow Pristine East End Contracting to show you Why Our Clients Call Us Back For All Their Home Remodeling Projects, Time & Time Again. Pristine East End Contracting can handle any size Home Remodeling & Design Project; We can complete your Major Home Improvement Renovation or Accommodate Your Minor Repair.

"It went perfect even after I added stuff to the original project their were no problems.all the work was beautifully done. I would definitely hire him again"

Frank S on January 2025

Pristine East End Contracting is a Small, Full Service, Family Owned and Operated, General Remodeling Contractor, Servicing all of Long Island, Located on, & predominately serving the East End of Suffolk County. Devoted To Quality & Personnel Attention. We Specialize in All Phases of Home Improvements, Residential & Commercial Construction. We offer Home Remodeling & Design Services, Kitchen and Bathroom Remodeling & Design, Basement Remodeling & Design, Whole House Remodeling, Historical Restorations, Renovations, New Construction, Home Improvements, Commercial Services, and Handyman Contracting Services. Rarely has a Remodeling Contractor been so Dedicated To Providing The Highest Quality Of Craftsmanship, most often not offered by the majority of Remodeling Contractors, and Guaranteed Satisfaction To Each And Every Customer. The Customer’s Best Interests Are Our Top Priority. We Really Care About Our Clients Home Improvement and Home Remodeling Projects. This is further shown through our attentiveness to the bottom line. No one likes overruns, when it’s imperative that budgets are met, Pristine East End Contracting is the only Remodeling Contractor For Your Home Remodeling Project. Owned and Operated by Remodeling & Design Contractor / Master Craftsman Nick DeRosa, who's Meticulous and Thorough Approach to your Home Improvement / Home Remodeling project is unmatched by any other Remodeling Contractor. "Pristine East End Contracting Offers an Unparalleled Attention To Detail, & views Quality Workmanship, Reliability, & Affordability, As The Very Foundation For Producing Results That Far Exceed Customer’s Expectations." Whether your Remodeling a Home, Kitchen, Bathroom, Basement, Office Building, Or Warehouse, not many other Remodeling Contractors will give you the Personalized Attention & Utmost Professionalism Your Home Improvement/Remodeling Project Deserves. With an A+-Rating on the Better Business Bureau, and an A-Rating on Angie's List, Completely Absent Of Any Complaints, (Unheard Of By Most Remodeling Contractors), you know your starting with Professionalism and Trust. You can sleep easy knowing your Home Improvement / Home Remodeling Project Is Truly In Caring, Qualified, Trustworthy Hands. Next time your Renovating your Home, Bathroom, Kitchen, Basement, Or Place Of Business, Read the Reviews, and allow Pristine East End Contracting to show you Why Our Clients Call Us Back For All Their Home Remodeling Projects, Time & Time Again. Pristine East End Contracting can handle any size Home Remodeling & Design Project; We can complete your Major Home Improvement Renovation or Accommodate Your Minor Repair.

"It went perfect even after I added stuff to the original project their were no problems.all the work was beautifully done. I would definitely hire him again"

Frank S on January 2025


Top Gun Kitchen & Cabinets

110 Brook Ave C
4.79(
19
)
Approved Pro

Top Gun Kitchen & Cabinets

110 Brook Ave C
4.79(
19
)
Approved Pro
Customers say: True professional
Recommended by 94% of Angi customers
Recommended by 94% of HomeAdvisor customers
778 local quotes requested

Full service Kitchen Remodeling company. Specializing in cabinet painting and kitchen face lifts with over 25 years experience. Free consultations. ZERO pressure sales. Let us save you thousands. Call today.

"I would highly recommend Top Gun!! My bath remodel was done on time. They cleaned up before ending each day!! Communication was excellent!!"

Rose F on September 2025

Full service Kitchen Remodeling company. Specializing in cabinet painting and kitchen face lifts with over 25 years experience. Free consultations. ZERO pressure sales. Let us save you thousands. Call today.

"I would highly recommend Top Gun!! My bath remodel was done on time. They cleaned up before ending each day!! Communication was excellent!!"

Rose F on September 2025

...
Showing 1-10 of 983
FAQs for addition to existing structure building service projects in Hampton Bays, NY

Yes, hidden rooms are legal, as long as they meet all local building regulations. If you sell your house, most states require homeowners to disclose full houseplans, which would include any hidden rooms.

If your secret room is a safe room, it should contain a means of communication aside from a cell phone, such as a shortwave radio. You should also have plenty of drinking water, a portable generator, emergency food supplies, blankets, pillows, flashlights, batteries and a first aid kit.

Any time you update your home’s square footage, you increase its value, but a secret room is a niche feature that doesn't rank high on every buyer’s list of must-haves. Investing your money in remodeling more common living areas like bedrooms, bathrooms, or kitchens will have a higher ROI than adding a secret room. Many secret rooms can act as entertainment spaces (think a game room or wine cellar) or quiet spaces (a library or study), so when building your secret room you may want to consider its versatility for when you’re ready to sell.

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.

  • A renovated kitchen with a waterfall island

    HomeAdvisor’s DIY Kitchen Remodel Cost Guide looks at the cost of buying supplies and doing the work yourself. Find the key cost factors and how to cut expenses.

  • Secret room within bookcase

    HomeAdvisor's expert guide walks you through the cost to build a secret room, whether you're creating a safe room for security or a fun space to fulfil your childhood fantasies. Use this guide to help plan your secret room project and explore room, concea

  • outdoor patio bar

    Explore the cost to build a bar in your home and learn how materials, wet vs. dry bars, and labor costs influence the total price of your project.