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Addition to existing structure builders in Islip Terrace


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


Avatar for Premier Home Remodeling & Design
Premier Home Remodeling & Design
4470 Middle Country Rd
4.50(
19
)
Approved Pro
Premier Home Remodeling & Design
4470 Middle Country Rd
4.50(
19
)
Approved Pro
Customers say: Quick response
6 years of experience
Free onsite estimate

With close to combined 30 years of experience, we are a locally owned, and operated company that values honesty, and integrity, and treats your home as if it were our own. We offer a variety of General Contractor Home Improvement services that are customizable to each individual project. We specialize in Bath Remodels, Kitchen Remodels, Roofing & Siding, Extensions & Dormers, Handicap Alterations, but also offer a wide range of expertise for a variety of other projects. We pride ourselves on the quality of our work, as well as our commitment to outstanding results. We look forward to building lasting relationships, and guarantee your satisfaction! Come check out our beautiful showroom right off middle country road in Calverton Commons shopping center and see our large selection of Tile, Marble, Wood flooring, Vinyl flooring, Quartz and Granite Counter tops, and Cabinets!

"Terrible work, terrible service, sad experience. Co totally botched flooring installation during kitchen reno through carelessness and obvious mistakes. Lone worker (Charlie Sr) slopped poly coating on cork flooring w/o vacuuming and then left the house before it dried. The seams puckered and debris and hair dried into the finish. The next day, other unsupervised workers tried to sand the tiles as a "fix." This ruined the cork. The end result was so obviously substandard that Premier paid for the tiles needed to fix (the original flooring material cost over $3,000). Now stopped on everything for 3 weeks while waiting for new tiles. Attitude remains unprofessional. Excuse after excuse about why Charles is unavailable to work after tiles are delivered. A constant problem throughout the project - family obligations, "Easter Monday," "I'm in Miami, "I'm in Phoenix" - never the truth of working for others. Save yourself. I'm out weeks and thousands."

Christine C on April 2025

With close to combined 30 years of experience, we are a locally owned, and operated company that values honesty, and integrity, and treats your home as if it were our own. We offer a variety of General Contractor Home Improvement services that are customizable to each individual project. We specialize in Bath Remodels, Kitchen Remodels, Roofing & Siding, Extensions & Dormers, Handicap Alterations, but also offer a wide range of expertise for a variety of other projects. We pride ourselves on the quality of our work, as well as our commitment to outstanding results. We look forward to building lasting relationships, and guarantee your satisfaction! Come check out our beautiful showroom right off middle country road in Calverton Commons shopping center and see our large selection of Tile, Marble, Wood flooring, Vinyl flooring, Quartz and Granite Counter tops, and Cabinets!

"Terrible work, terrible service, sad experience. Co totally botched flooring installation during kitchen reno through carelessness and obvious mistakes. Lone worker (Charlie Sr) slopped poly coating on cork flooring w/o vacuuming and then left the house before it dried. The seams puckered and debris and hair dried into the finish. The next day, other unsupervised workers tried to sand the tiles as a "fix." This ruined the cork. The end result was so obviously substandard that Premier paid for the tiles needed to fix (the original flooring material cost over $3,000). Now stopped on everything for 3 weeks while waiting for new tiles. Attitude remains unprofessional. Excuse after excuse about why Charles is unavailable to work after tiles are delivered. A constant problem throughout the project - family obligations, "Easter Monday," "I'm in Miami, "I'm in Phoenix" - never the truth of working for others. Save yourself. I'm out weeks and thousands."

Christine C on April 2025


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 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


Avatar for East End Designs, LLC
East End Designs, LLC
11 Bridal Path
4.92(
39
)
Approved Pro
East End Designs, LLC
11 Bridal Path
4.92(
39
)
Approved Pro
Super Service Award
Customers say: Quality work
15 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.

"Incredible work ethic, quality. Had many innovative solutions, delivered on time and exceeded expectations. Project came in on time, on budget. Made was could have been a complicated project a great experience. "

D R on April 2025

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.

"Incredible work ethic, quality. Had many innovative solutions, delivered on time and exceeded expectations. Project came in on time, on budget. Made was could have been a complicated project a great experience. "

D R on April 2025


JKL Construction, Inc.
251 Connetquot Avenue
3.56(
8
)
Approved Pro
JKL Construction, Inc.
251 Connetquot Avenue
3.56(
8
)
Approved Pro
Customers say: Quick response
15 years of experience
Free onsite estimate

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

"recently hired JKL Construction for a home renovation project, and I couldn?t be happier with the results! From start to finish, the team was professional, punctual, and incredibly knowledgeable. They took the time to fully understand my vision and provided expert advice to help refine the design, ensuring it was both functional and aesthetically pleasing. The craftsmanship was top-notch, and the attention to detail was evident in every aspect of the work. They were respectful of my home, keeping the site clean and organized throughout the project. Communication was excellent ? I was always kept in the loop, and any questions I had were answered promptly. The project was completed on time and within budget, which is something that?s often hard to find in this industry. I highly recommend JKL Construction to anyone looking for a reliable and skilled contractor. They exceeded my expectations, and I will definitely be working with them again for future projects!"

chris c on March 2025

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

"recently hired JKL Construction for a home renovation project, and I couldn?t be happier with the results! From start to finish, the team was professional, punctual, and incredibly knowledgeable. They took the time to fully understand my vision and provided expert advice to help refine the design, ensuring it was both functional and aesthetically pleasing. The craftsmanship was top-notch, and the attention to detail was evident in every aspect of the work. They were respectful of my home, keeping the site clean and organized throughout the project. Communication was excellent ? I was always kept in the loop, and any questions I had were answered promptly. The project was completed on time and within budget, which is something that?s often hard to find in this industry. I highly recommend JKL Construction to anyone looking for a reliable and skilled contractor. They exceeded my expectations, and I will definitely be working with them again for future projects!"

chris c on March 2025

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Addition to existing structure building services FAQs

Converting an existing space into a laundry room is more affordable than building a new addition. While new additions start at $5,000, renovating an existing space for laundry use can begin at $1,300. 

Your specific costs will depend on whether plumbing and electrical connections exist nearby, the quality of finishes you select, and whether any structural modifications are needed. Always budget extra for unexpected issues, particularly in older homes where hidden problems might surface during renovation.

The smallest practical size for a new laundry room addition is 35 square feet, which provides enough space for basic appliances and minimal storage. For renovations utilizing existing space, smaller footprints might work with space-saving solutions like stacked appliances. 

A standard-sized laundry room of 60 square feet offers more comfort and functionality, allowing for counter space and storage cabinets. The optimal size depends on your household needs and available space.

Yes, adding a laundry room requires several permits, particularly for new additions. You'll need building permits, plus specific permits for electrical work, plumbing installations, and possibly HVAC modifications. 

Requirements vary significantly by municipality, so consulting with your local building department before starting work is essential. Proceeding without proper permits can result in fines, mandatory removal of completed work, and complications when selling your property.

The timeline for completing a laundry room addition varies based on project complexity, contractor availability, and permit processing times. Factors that can extend the schedule include material delivery delays, weather conditions, and unforeseen structural issues discovered during construction. 

Renovating an existing space often requires less time than building a completely new addition. Working with an experienced contractor who can coordinate various tradespeople efficiently helps keep your project on schedule.

The 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.
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