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Find Addition to existing structure builders in Calverton

Avatar for Exterior Team Home Services, Inc.

Exterior Team Home Services, Inc.

4.95(
22
)
Approved Pro

Exterior Team Home Services, Inc.

4.95(
22
)
Approved Pro
Customers say: Quality work
Recommended by 95% of Angi customers
Recommended by 95% of HomeAdvisor customers
10 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.

4.29(
7
)
Approved Pro

MRJ Industries, Ltd.

4.29(
7
)
Approved Pro
Customers say: Quick response
40 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


Avatar for East End Designs, LLC

East End Designs, LLC

4.94(
51
)
Approved Pro

East End Designs, LLC

4.94(
51
)
Approved Pro
Customers say: Quality work
16 years of experience
Free onsite estimate

For over 20 years, Shawn Piazza, the owner of East End Designs, LLC has been providing top quality renovations to the East End and throughout Suffolk County. The team at East End Designs has the capability and knowledge to bring your dream project from an idea to completion. Please call 631-565-1117 or email leanna@eastenddesigns.net to book your free consultation today.

"Honest, trustworthy, professional, great communication.. and the work itself was excellent, attention to detail. Shawn and the crew let nothing stop them from doing the absolute best job they could do. I would highly recommend them "

William K on January 2026

For over 20 years, Shawn Piazza, the owner of East End Designs, LLC has been providing top quality renovations to the East End and throughout Suffolk County. The team at East End Designs has the capability and knowledge to bring your dream project from an idea to completion. Please call 631-565-1117 or email leanna@eastenddesigns.net to book your free consultation today.

"Honest, trustworthy, professional, great communication.. and the work itself was excellent, attention to detail. Shawn and the crew let nothing stop them from doing the absolute best job they could do. I would highly recommend them "

William K on January 2026


Design Development Construction Services, LLC

4.86(
12
)
Approved Pro

Design Development Construction Services, LLC

4.86(
12
)
Approved Pro
Customers say: Quality work
52 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


KG Home Improvement

5.00(
1
)
Approved Pro

KG Home Improvement

5.00(
1
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
22 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


MGT Construction, Corp.

4.21(
14
)
Approved Pro

MGT Construction, Corp.

4.21(
14
)
Approved Pro
Customers say: Quality work
12 local quotes requested
Free onsite estimate

We specialize in all phases of remodeling for your home, business, bathrooms, kitchens, finishing basements, and more! We guarantee your satisfaction, and we won’t leave until the job is done right. We pride ourselves on the quality work we provide, while delivering great customer service! Check out all the services we offer below and call -or- click to schedule a free estimate today!

"They did an awesome job. They were very professional. They were also very respectful. They respected our needs since my husband is already retired. Steve the project manager he was great along with his crew. They kept us in the loop of the progress on the project."

Joseph C on October 2025

We specialize in all phases of remodeling for your home, business, bathrooms, kitchens, finishing basements, and more! We guarantee your satisfaction, and we won’t leave until the job is done right. We pride ourselves on the quality work we provide, while delivering great customer service! Check out all the services we offer below and call -or- click to schedule a free estimate today!

"They did an awesome job. They were very professional. They were also very respectful. They respected our needs since my husband is already retired. Steve the project manager he was great along with his crew. They kept us in the loop of the progress on the project."

Joseph C on October 2025


Avatar for FD Building Co.

FD Building Co.

4.80(
17
)
Approved Pro

FD Building Co.

4.80(
17
)
Approved Pro
Customers say: Quality work
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
17 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 Hampton Design and Build

Hampton Design and Build

4.81(
26
)
Approved Pro

Hampton Design and Build

4.81(
26
)
Approved Pro
Customers say: Quick response
Recommended by 92% of Angi customers
Recommended by 92% of HomeAdvisor customers
24 years of experience

Hampton Design and Build is pleased to be partnering with HomeAdvisor to offer our full service addition, design and remodeling services to the greater East End area. We have been in business for over 30 years and we pride ourselves in our exemplary service, our craftsmanship and attention to detail. Being a full service contracting company there is no need to go anywhere else. Please call for a free estimate.

"We have done projects with different contractors, but putting an addition on to our house was by far the biggest project we had ever done. We were terrified of its breadth and complexityâ particularly as concerned making the house comfortable for my elderly parents and more accessible for my son, who uses a wheelchair. We met with several contractors and chose HDB both because their bid was more reasonable and because we had a gut feeling of trust that, fortunately for us, never ebbed throughout the process. Choosing HDB was the best decision we have ever made in the 10 years we have owned our house, and we will continue to solicit their expertise for any future work. At every step of the process they demonstrated their authenticity, integrity, empathy and expertise. For questions we had about anything, big or small, we received a response within a day. We added two and half rooms and bathrooms to ones side of the house. Based on his vast experience in our area, Dale had important, smart suggestions for modest but powerful improvements elsewhere in the house that would not have occurred to me but proved to be invaluable--and increased the value of our home dramatically. He navigated town permit issues. Cost was very reasonable and if there were any questions, he was open to discussing and adjusting. Diane had superb design instincts, which saved us from hiring another professional, and as part of the fee she sent wise suggestions for vanities, light fixtures, paint colors, rugs and more; and then ordered the items directly. Both obviously cared about us and the project and made everything as easy as possible for us. Most projects we had done previously had faltered at the end, with smaller punch list items; but as usual, Diane and Dale were responsive til the final t was crossed and I dotted. HDB is a rare company with skill and expertise but also with a passion for their work and a spirit of kindness and concern for their clients that made a house addition â something we dreaded--actually fun. Thanks HDB!"

Harriet B on November 2023

Hampton Design and Build is pleased to be partnering with HomeAdvisor to offer our full service addition, design and remodeling services to the greater East End area. We have been in business for over 30 years and we pride ourselves in our exemplary service, our craftsmanship and attention to detail. Being a full service contracting company there is no need to go anywhere else. Please call for a free estimate.

"We have done projects with different contractors, but putting an addition on to our house was by far the biggest project we had ever done. We were terrified of its breadth and complexityâ particularly as concerned making the house comfortable for my elderly parents and more accessible for my son, who uses a wheelchair. We met with several contractors and chose HDB both because their bid was more reasonable and because we had a gut feeling of trust that, fortunately for us, never ebbed throughout the process. Choosing HDB was the best decision we have ever made in the 10 years we have owned our house, and we will continue to solicit their expertise for any future work. At every step of the process they demonstrated their authenticity, integrity, empathy and expertise. For questions we had about anything, big or small, we received a response within a day. We added two and half rooms and bathrooms to ones side of the house. Based on his vast experience in our area, Dale had important, smart suggestions for modest but powerful improvements elsewhere in the house that would not have occurred to me but proved to be invaluable--and increased the value of our home dramatically. He navigated town permit issues. Cost was very reasonable and if there were any questions, he was open to discussing and adjusting. Diane had superb design instincts, which saved us from hiring another professional, and as part of the fee she sent wise suggestions for vanities, light fixtures, paint colors, rugs and more; and then ordered the items directly. Both obviously cared about us and the project and made everything as easy as possible for us. Most projects we had done previously had faltered at the end, with smaller punch list items; but as usual, Diane and Dale were responsive til the final t was crossed and I dotted. HDB is a rare company with skill and expertise but also with a passion for their work and a spirit of kindness and concern for their clients that made a house addition â something we dreaded--actually fun. Thanks HDB!"

Harriet B on November 2023


Avatar for Elevate Construction ECS LLC

Elevate Construction ECS LLC

5.00(
4
)
Approved Pro

Elevate Construction ECS LLC

5.00(
4
)
Approved Pro
Super Service Award
4 years of experience
Free onsite estimate

We are 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.

"Top of the line workmanship! They were courteous and professional. I couldn?t be happier with the outcome. I Highly recommend this company and will be hiring them again. "

Donna B on February 2025

We are 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.

"Top of the line workmanship! They were courteous and professional. I couldn?t be happier with the outcome. I Highly recommend this company and will be hiring them again. "

Donna B on February 2025


Thomas O'Neill Custom Design, Inc.

5.00(
2
)
Approved Pro

Thomas O'Neill Custom Design, Inc.

5.00(
2
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
13 local quotes requested

At Thomas O'Neill Custom ,we are dedicated to providing you with exceptional customer service. We specialize in getting your projects done in a timely and professional manner. We have been in business for over 20 years and are backed by over 40+ years experience, and are licensed and insured. So call today and set up your free no obligation estimate. We are located in Southampton NY. Thank you.

"."

John . on May 2020

At Thomas O'Neill Custom ,we are dedicated to providing you with exceptional customer service. We specialize in getting your projects done in a timely and professional manner. We have been in business for over 20 years and are backed by over 40+ years experience, and are licensed and insured. So call today and set up your free no obligation estimate. We are located in Southampton NY. Thank you.

"."

John . on May 2020

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FAQs for addition to existing structure building service projects in Calverton, 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 Calverton, 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.