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Addition to existing structure builders in East Hampton

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


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


Reclaimed Specialists & Contractors
256 Montauk Hwy.
5.00(
1
)
Approved Pro
Reclaimed Specialists & Contractors
256 Montauk Hwy.
5.00(
1
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
17 years of experience

Reclaimed Specialists and Contractors is a locally owned and operated company that values honesty and integrity in all aspects of our business. Our dedicated team of professionals have over 12 years of hands on experience to provide innovative ideas and suggestions tailored to your projects. Our services are customized to your individual needs, paying close attention to the details of each project that we are involved with. Please feel free to contact us today!

"They are very professional and knowledgeable."

Seth R on April 2021

Reclaimed Specialists and Contractors is a locally owned and operated company that values honesty and integrity in all aspects of our business. Our dedicated team of professionals have over 12 years of hands on experience to provide innovative ideas and suggestions tailored to your projects. Our services are customized to your individual needs, paying close attention to the details of each project that we are involved with. Please feel free to contact us today!

"They are very professional and knowledgeable."

Seth R on April 2021


Design Development Construction Services, LLC
900 South 2nd St Suite #5
4.86(
12
)
Approved Pro
Design Development Construction Services, LLC
900 South 2nd St Suite #5
4.86(
12
)
Approved Pro
Customers say: Quality work
51 years of experience
Free onsite estimate

Hiring a general contractor is the first step in taking control of your home improvement project. Having an industry professional like Design Development Construction Services, LLC coordinate and manage all aspects of your project means fewer delays, tighter quality control and a more successful outcome. All of these contribute to a greater return on your investment. We have been in business since 1974 and would like the opportunity to speak with you about your home improvement needs.

"Very experienced company with an amazing wood working facility for custom projects. Excellent communication and customer service."

Liat A on July 2021

Hiring a general contractor is the first step in taking control of your home improvement project. Having an industry professional like Design Development Construction Services, LLC coordinate and manage all aspects of your project means fewer delays, tighter quality control and a more successful outcome. All of these contribute to a greater return on your investment. We have been in business since 1974 and would like the opportunity to speak with you about your home improvement needs.

"Very experienced company with an amazing wood working facility for custom projects. Excellent communication and customer service."

Liat A on July 2021


Avatar for FD Building Co.
FD Building Co.
185 Montauk Highway
4.80(
17
)
Approved Pro
FD Building Co.
185 Montauk Highway
4.80(
17
)
Approved Pro
Customers say: Quality work
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
16 years of experience

FD Building Co., has provided high quality work and friendly customer service for over 20 years. We get the job done efficiently and meticulously. We a full construction crew and maintenance program to keep your investment meticulously maintained. Visit or call us today!

"Great company to work with. Not cheap but they do good work and they have nice people."

Holly K on April 2022

FD Building Co., has provided high quality work and friendly customer service for over 20 years. We get the job done efficiently and meticulously. We a full construction crew and maintenance program to keep your investment meticulously maintained. Visit or call us today!

"Great company to work with. Not cheap but they do good work and they have nice people."

Holly K on April 2022


Avatar for WOOD ISLAND BROS HOME IMPROVEMENT INC
WOOD ISLAND BROS HOME IMPROVEMENT INC
28 Winding Path 11
5.00(
2
)
Approved Pro
WOOD ISLAND BROS HOME IMPROVEMENT INC
28 Winding Path 11
5.00(
2
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
33 local quotes requested

Customer satisfaction is what determines our success, which is why we take a hands-on approach. When interacting with Wood Island Home Improvement you'll notice that we're particularly focused on the principles of quality workmanship, timely completion, competitive pricing, and integrity in all our business dealings. We combine knowledge and research with our extensive practical experience to ensure a specialized approach for your project needs. Contact us today for a fair and accurate estimate of your project. We look forward to adding you to our long and growing list of happy customers.

"Wood Island bros. is a great business, I hired them for a bunch of repairs in my home, including kitchen and window repair. I recommend this company, very efficient and and professional."

Melva C on October 2024

Customer satisfaction is what determines our success, which is why we take a hands-on approach. When interacting with Wood Island Home Improvement you'll notice that we're particularly focused on the principles of quality workmanship, timely completion, competitive pricing, and integrity in all our business dealings. We combine knowledge and research with our extensive practical experience to ensure a specialized approach for your project needs. Contact us today for a fair and accurate estimate of your project. We look forward to adding you to our long and growing list of happy customers.

"Wood Island bros. is a great business, I hired them for a bunch of repairs in my home, including kitchen and window repair. I recommend this company, very efficient and and professional."

Melva C on October 2024


Avatar for Webb Builders
Webb Builders
PO Box 744
5.00(
4
)
Approved Pro
Webb Builders
PO Box 744
5.00(
4
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
25 years of experience

Webb Builders, Inc. and our subsidiary, Webbstar Networking & Technology Solutions 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.

"Dean was extremely professional and worked within my budget. I would highly recommend Dean for future projects."

Antoinette A on March 2021

Webb Builders, Inc. and our subsidiary, Webbstar Networking & Technology Solutions 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.

"Dean was extremely professional and worked within my budget. I would highly recommend Dean for future projects."

Antoinette A on March 2021


Avatar for ES CARPENTRY
ES CARPENTRY
PO Box 6591
5.00(
1
)
Approved Pro
ES CARPENTRY
PO Box 6591
5.00(
1
)
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.

"Fully professional and reliable carpenter!"

Matt R on March 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.

"Fully professional and reliable carpenter!"

Matt R on March 2025


Avatar for Two Stories Building Co
Two Stories Building Co
74365 Main Rd STE 1
5.00(
6
)
Approved Pro
Two Stories Building Co
74365 Main Rd STE 1
5.00(
6
)
Approved Pro
Customers say: Quick response
13 local quotes requested
11 years of experience

At Two Stories Building Co., your home isn’t just another project—it’s where your life unfolds, your style takes shape, and your vision comes to life. Since 2014, you’ve trusted us to transform spaces with precision, care, and craftsmanship that stands the test of time. We blend modern construction techniques with high-quality, sustainable materials to create homes that are as functional as they are beautiful. You deserve a process that’s seamless, transparent, and free of unnecessary stress. That’s why we keep you informed at every step, ensuring your ideas are heard, your expectations are exceeded, and your investment is respected. Whether you're planning a full-scale remodel or building from the ground up, your goals guide every decision, and your satisfaction drives everything we do. More than just builders, we’re your partners—committed to making your home everything you’ve envisioned and more.

"The work that was done was exceptional! It was exactly what I wanted and done with great craftsmanship. They were easy to talk to and had great communication as far as timelines and cost. I would highly recommend them and would have them do any work needed again without question. Totally professional!"

Frances T on March 2025

At Two Stories Building Co., your home isn’t just another project—it’s where your life unfolds, your style takes shape, and your vision comes to life. Since 2014, you’ve trusted us to transform spaces with precision, care, and craftsmanship that stands the test of time. We blend modern construction techniques with high-quality, sustainable materials to create homes that are as functional as they are beautiful. You deserve a process that’s seamless, transparent, and free of unnecessary stress. That’s why we keep you informed at every step, ensuring your ideas are heard, your expectations are exceeded, and your investment is respected. Whether you're planning a full-scale remodel or building from the ground up, your goals guide every decision, and your satisfaction drives everything we do. More than just builders, we’re your partners—committed to making your home everything you’ve envisioned and more.

"The work that was done was exceptional! It was exactly what I wanted and done with great craftsmanship. They were easy to talk to and had great communication as far as timelines and cost. I would highly recommend them and would have them do any work needed again without question. Totally professional!"

Frances T on March 2025

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FAQs for addition to existing structure building service projects in East Hampton, NY

Building an in-law suite takes between two and seven months. Converting an existing basement, attic, or room can be done in about two months. Constructing a new addition or detached suite often takes four to five months for construction, plus one to two months for permits. The bigger the suite, the longer it will take. 

Yes, you can build an in-law suite in your backyard if you meet local building codes and zoning regulations. An in-law suite often occupies 300 to 800 square feet. Be sure to follow size restrictions, utility separations, and entrance requirements. Hiring a qualified contractor ensures you meet all regulatory requirements because they can pull permits, double-check local code, and gather other skilled pros to work on your suite. 

An in-law suite is a self-contained living space attached to—or detached from—your main home. Expect a bedroom, full bath, and a kitchenette or compact living area. The setup gives relatives privacy, doubles as a potential rental, and can lift your property value. To qualify as a legal dwelling, the suite must meet local building codes and zoning rules.

The East Hampton, 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.
BRIGHT OPEN ATTIC SPACE
Jun 10, 2025
Jun 10, 2025
An in-law suite is a great solution for people who have family visiting often. Explore how much an in-law suite costs and prep to build yours.
white and gray kitchen with butchers block countertop
Apr 8, 2025
Apr 8, 2025
Looking to enhance the warmth and utility of your kitchen? Explore how much a butcher block countertop costs and start your budget here.
built-in outdoor kitchen with grill and sink
Apr 30, 2025
Apr 30, 2025
Budget for outdoor kitchen costs based on factors such as appliances, materials, permits, labor, amenities, kitchen size, customizations, and more.
BLUE TWO STORY HOME
Apr 30, 2025
Apr 30, 2025
Budget for the cost to add a second story based on factors such as size, foundation work, materials, labor, permits, post-construction cleaning, and more.
small bathroom that has been updated in a remodel
Apr 29, 2025
Apr 29, 2025
Budget for the cost to remodel a small bathroom based on factors such as required fixtures, bathroom size, labor, remodel type, site prep, and more.
guest house in the backyard
Apr 27, 2025
Apr 27, 2025
Need to build a guest house? Here’s how much it costs, what factors affect cost, and what to expect.
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