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Addition to existing structure builders in Bay Shore


American Home and Design, Inc.
47 Chestnut Avenue
5.00(
23
)
Approved Pro
American Home and Design, Inc.
47 Chestnut Avenue
5.00(
23
)
Approved Pro
Customers say: Quality work
25 years of experience
Free onsite estimate

We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade! We will always do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business! Call us anytime!

"He has been fantastic!"

Chris P on June 2020

We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade! We will always do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business! Call us anytime!

"He has been fantastic!"

Chris P on June 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 Chelsea Home Remodeling, Inc.
Chelsea Home Remodeling, Inc.
200 Warner Road
5.00(
18
)
Approved Pro
Chelsea Home Remodeling, Inc.
200 Warner Road
5.00(
18
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
40 years of experience

Welcome to Chelsea Home Remodeling, Inc. A family owned and operated business since 1985, having 30 years of diverse experience, dedicated solely to residential home remodeling. The company was incorporated in 1986 by Dominick and Cynthia Mupo and sons, Michael and Louis. The philosophy of professional service combined with quality craftsmanship has proven to be the catalyst for our success. A key ingredient in the success of the projects undertaken is employment of a staff of diversified professionals. Almost all the construction activities are performed and coordinated by our full time staff. The company's original area of specialization, Custom Baths and Kitchens, have expanded over the years to include medium to large home renovations. An extended portfolio is available with qualified referrals upon request. Must have your own plans available for work to be completed.

"I was referred to Chelsea Home Remodeling by the owner of Marcor Roofing who previously did an excellent job on my roofing project. I was looking for a reliable contracting company to do a major interior renovation project including a full gut out demolition and rebuild of an existing extension that I knew required extensive corrections and repair. Chelsea is a family owned and operated business and they were exceptional right from the start. Dominick Mupo and his son Louis came to perform the initial inspection and to discuss my project. Dominick provided a very detailed estimate in writing, which he reviewed with me line by line in person with full transparency. They may not be the least expensive but I got what I paid for; they did a superior job from big to fine details from start to finish. Working with Dominick, Louis, Michael, Manny and Carlos was an absolute pleasure. They kept to the timeline, showed up as planned and on time, were pleasant and cooperative, cleaned up at the end of each and every day, respectfully cared for my home and property and were ever patient with my many questions and concerns every step of the way. They were consistently open to discussion regarding the problems found from the original construction, and with my participation in the process. They made the whole project as stress free as possible and consistently went above and beyond. I never doubted that my home and project was as important to them as their own homes would be. Their expertise with problem solving, knowledge of code and the correct way to do things, with acute attention to detail, was exceptional. Their referrals for floor refinishing and painting were also excellent. I am beyond pleased with the final results and could not have asked for a better contracting company. I will be using them for all my planned home remodeling projects and highly recommend them without reservation."

Susan M on February 2020

Welcome to Chelsea Home Remodeling, Inc. A family owned and operated business since 1985, having 30 years of diverse experience, dedicated solely to residential home remodeling. The company was incorporated in 1986 by Dominick and Cynthia Mupo and sons, Michael and Louis. The philosophy of professional service combined with quality craftsmanship has proven to be the catalyst for our success. A key ingredient in the success of the projects undertaken is employment of a staff of diversified professionals. Almost all the construction activities are performed and coordinated by our full time staff. The company's original area of specialization, Custom Baths and Kitchens, have expanded over the years to include medium to large home renovations. An extended portfolio is available with qualified referrals upon request. Must have your own plans available for work to be completed.

"I was referred to Chelsea Home Remodeling by the owner of Marcor Roofing who previously did an excellent job on my roofing project. I was looking for a reliable contracting company to do a major interior renovation project including a full gut out demolition and rebuild of an existing extension that I knew required extensive corrections and repair. Chelsea is a family owned and operated business and they were exceptional right from the start. Dominick Mupo and his son Louis came to perform the initial inspection and to discuss my project. Dominick provided a very detailed estimate in writing, which he reviewed with me line by line in person with full transparency. They may not be the least expensive but I got what I paid for; they did a superior job from big to fine details from start to finish. Working with Dominick, Louis, Michael, Manny and Carlos was an absolute pleasure. They kept to the timeline, showed up as planned and on time, were pleasant and cooperative, cleaned up at the end of each and every day, respectfully cared for my home and property and were ever patient with my many questions and concerns every step of the way. They were consistently open to discussion regarding the problems found from the original construction, and with my participation in the process. They made the whole project as stress free as possible and consistently went above and beyond. I never doubted that my home and project was as important to them as their own homes would be. Their expertise with problem solving, knowledge of code and the correct way to do things, with acute attention to detail, was exceptional. Their referrals for floor refinishing and painting were also excellent. I am beyond pleased with the final results and could not have asked for a better contracting company. I will be using them for all my planned home remodeling projects and highly recommend them without reservation."

Susan M on February 2020


Coastal Carpentry Corp.
110 Woodcut Drive
5.00(
1
)
Approved Pro
Coastal Carpentry Corp.
110 Woodcut Drive
5.00(
1
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
7 years of experience

Coastal Carpentry Corp, 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.

"They were very easy to work with and I enjoyed their company."

Chad N on July 2021

Coastal Carpentry Corp, 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.

"They were very easy to work with and I enjoyed their company."

Chad N on July 2021


Impresa Construction, Inc.
2475 Sunrise Avenue
5.00(
4
)
Approved Pro
Impresa Construction, Inc.
2475 Sunrise Avenue
5.00(
4
)
Approved Pro
Customers say: Terrific value
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
37 years of experience

Welcome to Impresa Construction, Inc.! We have been serving Bellmore and the surrounding areas for over 25 years. We take pride in the quality of our work, and offer it at a fair price! No matter the drywall or plaster job, we do it all. Give us a call today and let us be your 1 stop solution to all your home improvement needs!

"I was so pleased to be connected to Eddie and the Impresa Construction crew through Home Advisor. They were awesome! We had a complete room renovation (floor, ceiling, walls gutted) as well as updating the ceiling, all molding and painting in a dining room. Eddie and his crew were very knowledgeable and helpful throughout the whole process and did a beautiful job on everything they touched- flooring, drywall, ceilings, plaster, painting. Eddie is extremely tidy as well and made sure to clean up quickly and in a thorough manner. Couldn't be happier! I will definitely hire him again !!!"

Eileen M on August 2018

Welcome to Impresa Construction, Inc.! We have been serving Bellmore and the surrounding areas for over 25 years. We take pride in the quality of our work, and offer it at a fair price! No matter the drywall or plaster job, we do it all. Give us a call today and let us be your 1 stop solution to all your home improvement needs!

"I was so pleased to be connected to Eddie and the Impresa Construction crew through Home Advisor. They were awesome! We had a complete room renovation (floor, ceiling, walls gutted) as well as updating the ceiling, all molding and painting in a dining room. Eddie and his crew were very knowledgeable and helpful throughout the whole process and did a beautiful job on everything they touched- flooring, drywall, ceilings, plaster, painting. Eddie is extremely tidy as well and made sure to clean up quickly and in a thorough manner. Couldn't be happier! I will definitely hire him again !!!"

Eileen M on August 2018


Kiwi Restorations, LLC
194 Mill Road
5.00(
2
)
Approved Pro
Kiwi Restorations, LLC
194 Mill Road
5.00(
2
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
2 years of experience

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.

"Shane and his crew were fantastic. From our first meeting through completion the renovation was seamless. Great attention to detail, neat, clean and respectful of my house. Finished on time and on budget. Highly recommended."

Mark K on February 2024

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.

"Shane and his crew were fantastic. From our first meeting through completion the renovation was seamless. Great attention to detail, neat, clean and respectful of my house. Finished on time and on budget. Highly recommended."

Mark K on February 2024


Avatar for Premier Builders & Construction
Premier Builders & Construction
116 St. Marks Place
5.00(
4
)
Approved Pro
Premier Builders & Construction
116 St. Marks Place
5.00(
4
)
Approved Pro
Customers say: Quick response
4 years of experience
Free onsite estimate

We pride our company on reliability, great communication, integrity, and quality work. We believe in giving our absolute best in all of our projects, no matter how big or small. You will find us to be competitively priced, with close attention to the details of each and every project. We are experts in our trade and will always keep you educated on your particular task or project. We look forward to earning your business, so please ask us for references.

"Premier Builders was trustworthy and a pleasure to work with. A+ job. Would recommend to anyone remodeling their home."

Mike V on October 2022

We pride our company on reliability, great communication, integrity, and quality work. We believe in giving our absolute best in all of our projects, no matter how big or small. You will find us to be competitively priced, with close attention to the details of each and every project. We are experts in our trade and will always keep you educated on your particular task or project. We look forward to earning your business, so please ask us for references.

"Premier Builders was trustworthy and a pleasure to work with. A+ job. Would recommend to anyone remodeling their home."

Mike V on October 2022


Avatar for Andrew Murphy & Company
Andrew Murphy & Company
PO BOX 501
5.00(
3
)
Approved Pro
Andrew Murphy & Company
PO BOX 501
5.00(
3
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
4 years of experience

Build. Better. We are a custom builder that prides ourselves on exceeding expectations and working with our clients and architects in a Team Environment to bring the vision of your new home to life. It's not just the ability to build to the fit and finish you expect, it's managing the people, time, materials and cost daily to ensure a quality product and a home finished on time, every time.

"Uncompromising quality and attention to detail. Fantastic subs who were true artisans. Built a 3600 square foot house totally on schedule in just under a year. There was nothing in this construction project that had to be re-done. The appropriate questions were always asked before work proceeded. Our buildung site was also kept clean and orderly. Andrew is a master of scheduling ans organization so work progressed with very few timing glitches."

Deborah L on December 2024

Build. Better. We are a custom builder that prides ourselves on exceeding expectations and working with our clients and architects in a Team Environment to bring the vision of your new home to life. It's not just the ability to build to the fit and finish you expect, it's managing the people, time, materials and cost daily to ensure a quality product and a home finished on time, every time.

"Uncompromising quality and attention to detail. Fantastic subs who were true artisans. Built a 3600 square foot house totally on schedule in just under a year. There was nothing in this construction project that had to be re-done. The appropriate questions were always asked before work proceeded. Our buildung site was also kept clean and orderly. Andrew is a master of scheduling ans organization so work progressed with very few timing glitches."

Deborah L on December 2024


Avatar for Granville House Victorians L.L.C.
Granville House Victorians L.L.C.
16 Riverdale Ave
5.00(
1
)
Approved Pro
Granville House Victorians L.L.C.
16 Riverdale Ave
5.00(
1
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
20 years of experience

The linkedin site will tell our Story. Clients will take advantage of Granville's in house Design capabilities with CAD. see granvillevictorians.com for examples of our work

"Granville House Victorians L.L.C. is extremely skilled and professional. My Victorian style house came out better than I could have dreamed. Granville took care of everything and they are extremely knowledgeable in what they do."

Jonathan P on January 2023

The linkedin site will tell our Story. Clients will take advantage of Granville's in house Design capabilities with CAD. see granvillevictorians.com for examples of our work

"Granville House Victorians L.L.C. is extremely skilled and professional. My Victorian style house came out better than I could have dreamed. Granville took care of everything and they are extremely knowledgeable in what they do."

Jonathan P on January 2023

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FAQs for addition to existing structure building service projects in Bay Shore, 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 Bay Shore, 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.
CONTRACTOR LOOKING OVER HOME DEVELOPMENT
Apr 19, 2025
Apr 19, 2025
Budget for your general contractor’s hourly rate by considering factors such as project scope, fee structure, pricing model, and more.
Outdoor view of the modern house
Jun 16, 2025
Jun 16, 2025
Explore how square footage, room type, home additions, and other common factors affect house renovation costs with our detailed cost guide.
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.
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