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Find Addition to existing structure builders in Franklin Square

Avatar for Stars and Stripes Home Improvement LLC

Stars and Stripes Home Improvement LLC

4.94(
265
)
•Approved Pro

Stars and Stripes Home Improvement LLC

4.94(
265
)
•Approved Pro
Super Service Award
Customers say: Super punctual
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers
9 years of experience

With US HOME / STARS AND STRIPES has been servicing homeowners for more than 25 years. Customer preference and priorities are always first. We're very timely with our work and never lose attention to detail. Give us a call for your free estimate.Deal direct with owner. FULLY LICENSED: Suffolk County Nassau County

"We hired Stars and Stripes for a few projects around our home. The main one was our kitchen re-model. The project was done professionally, beautifully, and ON TIME! We would definitely recommend (and continue to use) Stars and Stripes. I?ve attached some before and after pics to see their work. "

bonnie e on March 2026

With US HOME / STARS AND STRIPES has been servicing homeowners for more than 25 years. Customer preference and priorities are always first. We're very timely with our work and never lose attention to detail. Give us a call for your free estimate.Deal direct with owner. FULLY LICENSED: Suffolk County Nassau County

"We hired Stars and Stripes for a few projects around our home. The main one was our kitchen re-model. The project was done professionally, beautifully, and ON TIME! We would definitely recommend (and continue to use) Stars and Stripes. I?ve attached some before and after pics to see their work. "

bonnie e on March 2026

Avatar for Fine Designs by US Home Remodeling

Fine Designs by US Home Remodeling

5.00(
32
)
•Approved Pro

Fine Designs by US Home Remodeling

5.00(
32
)
•Approved Pro
Super Service Award
Customers say: True professional
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers
17 years of experience

COMPLETE HOME IMPROVEMENT COMPANY SERVICING NASSAU COUNTY Long Island FOR OVER 10 YEARS. KITCHENS, BATHROOM, SIDING, ROOFING, WINDOWS AND DOORS

"Amazing job by Dave and his team at fine design. I’d highly recommend them for any job in your home. You will not be disappointed."

Erin G on October 2025

COMPLETE HOME IMPROVEMENT COMPANY SERVICING NASSAU COUNTY Long Island FOR OVER 10 YEARS. KITCHENS, BATHROOM, SIDING, ROOFING, WINDOWS AND DOORS

"Amazing job by Dave and his team at fine design. I’d highly recommend them for any job in your home. You will not be disappointed."

Erin G on October 2025

Avatar for Portillo's Carpentry & Demolition

Portillo's Carpentry & Demolition

4.90(
63
)

Portillo's Carpentry & Demolition

4.90(
63
)
Customers say: Quick response
Recommended by 98% of Angi customers
Recommended by 98% of HomeAdvisor customers

portillo demolition general repairs, maintenance, in business since 2010. Family owned and operated. Painting interior and exterior stall doors windows decking painting power washer pavers driveway fences sealer driveway ceramic work bathroom kitchen fire place stall wood flooring bambú laminates make new bathroom new kitchen few other things.

"This review is long overdue! We had the pleasure of working with Robert on renovating our new house from top to bottom almost a year ago, and we are still thrilled with the results. Their professionalism, attention to detail, and commitment to quality has created a deep trust in Robert. He is top of our list and we have recommended him and his team to all our family and friends. We knew he would be a good fit from the initial consultation. Roberto managed everything with care and great attention to detail. Robert and his team executed our vision so well and everyone who has been over have showered us with compliments at how good everything looks. Throughout the renovation Roberto maintained excellent communication, keeping us updated at every stage. They were always punctual, courteous, and willing to answer any questions we had. His team was respectful of our home and ensured that the worksite was clean and organized at the end of each day. The quality of workmanship has proven to be outstanding and the custom work will last us for years to come. Another impressive aspect of working with Roberto and team was their ability to stay on schedule and within budget. They provided a clear timeline at the beginning of the project and adhered to it, completing the work on time without any unexpected costs. Even after the project was completed, Roberto continued to provide exceptional customer service and followed up to ensure we were satisfied with the work. We highly recommend Roberto to anyone looking for a reliable, skilled, and professional contractor. Our new house is beautiful and suits us perfectly thanks to Roberto and his team!"

TK N on October 2024

portillo demolition general repairs, maintenance, in business since 2010. Family owned and operated. Painting interior and exterior stall doors windows decking painting power washer pavers driveway fences sealer driveway ceramic work bathroom kitchen fire place stall wood flooring bambú laminates make new bathroom new kitchen few other things.

"This review is long overdue! We had the pleasure of working with Robert on renovating our new house from top to bottom almost a year ago, and we are still thrilled with the results. Their professionalism, attention to detail, and commitment to quality has created a deep trust in Robert. He is top of our list and we have recommended him and his team to all our family and friends. We knew he would be a good fit from the initial consultation. Roberto managed everything with care and great attention to detail. Robert and his team executed our vision so well and everyone who has been over have showered us with compliments at how good everything looks. Throughout the renovation Roberto maintained excellent communication, keeping us updated at every stage. They were always punctual, courteous, and willing to answer any questions we had. His team was respectful of our home and ensured that the worksite was clean and organized at the end of each day. The quality of workmanship has proven to be outstanding and the custom work will last us for years to come. Another impressive aspect of working with Roberto and team was their ability to stay on schedule and within budget. They provided a clear timeline at the beginning of the project and adhered to it, completing the work on time without any unexpected costs. Even after the project was completed, Roberto continued to provide exceptional customer service and followed up to ensure we were satisfied with the work. We highly recommend Roberto to anyone looking for a reliable, skilled, and professional contractor. Our new house is beautiful and suits us perfectly thanks to Roberto and his team!"

TK N on October 2024

Avatar for HM Construction Group, Inc. (Long Island Handyman Group)

HM Construction Group, Inc. (Long Island Handyman Group)

4.95(
21
)
•Approved Pro

HM Construction Group, Inc. (Long Island Handyman Group)

4.95(
21
)
•Approved Pro
Customers say: Quick response
Recommended by 90% of Angi customers
Recommended by 90% of HomeAdvisor customers
9 years of experience

HM Construction Group specializes in home remodeling, construction, property management, handyman tasks and repairs. We do all residential and commercial contracting, from trim to odd jobs. No job is too small or too big. We're a locally owned and operated company with many years of construction and handyman experience. We value honesty and integrity in all aspects of our business. We specialize in handyman work and a variety of related service and repair 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 with our clients and guarantee your satisfaction!

"Eddie was great to work with! We had a limited time frame to adhere to town inspections and Eddie and his team knew exactly what we needed and quickly got the job done. The results were great and even the inspector acknowledged the impressive repair. They were able to put a knocked out garage wall back on the foundation and repair the interior dry wall. I would recommend this company for any professional contract work due to their reasonable price, ease to work with and quality of work."

Virginia K on October 2025

HM Construction Group specializes in home remodeling, construction, property management, handyman tasks and repairs. We do all residential and commercial contracting, from trim to odd jobs. No job is too small or too big. We're a locally owned and operated company with many years of construction and handyman experience. We value honesty and integrity in all aspects of our business. We specialize in handyman work and a variety of related service and repair 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 with our clients and guarantee your satisfaction!

"Eddie was great to work with! We had a limited time frame to adhere to town inspections and Eddie and his team knew exactly what we needed and quickly got the job done. The results were great and even the inspector acknowledged the impressive repair. They were able to put a knocked out garage wall back on the foundation and repair the interior dry wall. I would recommend this company for any professional contract work due to their reasonable price, ease to work with and quality of work."

Virginia K on October 2025

Avatar for New York Contracting Associates, Inc.

New York Contracting Associates, Inc.

5.00(
19
)
•Approved Pro

New York Contracting Associates, Inc.

5.00(
19
)
•Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
18 years of experience

My name is Mark, I've been in the business my entire life. I'm a 3rd generation contractor. I'm dedicated to providing our clients with the very best. With many years of industry experience, we take an enormous amount of pride in the attention to detail put into each of the projects we're involved with. We're known for our quality work and the integrity of our business. We look forward to building long-term relationships with our clients, and guarantee your satisfaction. I treat every client like family. I love what I do and it shows, and I look forward to working with you in the future.

"They were amazing ,on time ,professional, and extremely clean and the job came out breathtaking, The price was so fair. I will recommend them to everybody."

Domenica H on August 2024

My name is Mark, I've been in the business my entire life. I'm a 3rd generation contractor. I'm dedicated to providing our clients with the very best. With many years of industry experience, we take an enormous amount of pride in the attention to detail put into each of the projects we're involved with. We're known for our quality work and the integrity of our business. We look forward to building long-term relationships with our clients, and guarantee your satisfaction. I treat every client like family. I love what I do and it shows, and I look forward to working with you in the future.

"They were amazing ,on time ,professional, and extremely clean and the job came out breathtaking, The price was so fair. I will recommend them to everybody."

Domenica H on August 2024

Avatar for Greg Home Improvement, Inc.

Greg Home Improvement, Inc.

4.83(
80
)
•Approved Pro

Greg Home Improvement, Inc.

4.83(
80
)
•Approved Pro
Customers say: Quick response
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers
29 years of experience

Greg Home Improvement Inc is a family owned and operated business . The president, Greg Estevez is the person in charge to estimate and supervise all the work, also one of the most complete of the very experienced working team. We been in business for 19 years performing all phases of construction in New York City, Nassau and Suffolk with a clean record in Consumer Affairs and Better Business Bureau with A+ rating. Greg home improvement Inc do not use subcontractors , only electricians and plumbers. We are licensed and insured.

"No job to small or to big for Greg, they do a good job!"

JOHN O on June 2023

Greg Home Improvement Inc is a family owned and operated business . The president, Greg Estevez is the person in charge to estimate and supervise all the work, also one of the most complete of the very experienced working team. We been in business for 19 years performing all phases of construction in New York City, Nassau and Suffolk with a clean record in Consumer Affairs and Better Business Bureau with A+ rating. Greg home improvement Inc do not use subcontractors , only electricians and plumbers. We are licensed and insured.

"No job to small or to big for Greg, they do a good job!"

JOHN O on June 2023

Avatar for Tanem Construction, Inc.

Tanem Construction, Inc.

4.71(
70
)
•Approved Pro

Tanem Construction, Inc.

4.71(
70
)
•Approved Pro
Super Service Award
Customers say: True professional
47 years of experience
Free onsite estimate

Here at Tanem Construction, Inc., we sustain our business on 40 years of quality and integrity. We are experts in our trade and our commitment to quality from beginning to end of your project. We look forward to earning your business. Call us anytime with any questions you may have. Thanks for your time and have a great day.

"Expert drywall, taping and finishing. The room looks great and the people were a pleasure to work with."

M. H on August 2025

Here at Tanem Construction, Inc., we sustain our business on 40 years of quality and integrity. We are experts in our trade and our commitment to quality from beginning to end of your project. We look forward to earning your business. Call us anytime with any questions you may have. Thanks for your time and have a great day.

"Expert drywall, taping and finishing. The room looks great and the people were a pleasure to work with."

M. H on August 2025

Avatar for All Island Additions and Renovations

All Island Additions and Renovations

4.97(
16
)
•Approved Pro

All Island Additions and Renovations

4.97(
16
)
•Approved Pro
Customers say: Quick response
1 years of experience
Free onsite estimate

All Island Additions and Renovations is dedicated to providing our customers with the best quality and craftsmanship. We are here to build relationships with our customers and communities and to provide our employees with a great place to work. All Island Additions and Renovations is a leader in providing our customers with the highest quality products and craftsmanship in an honest, efficient, and professional way. Our pledge is to create successful relationships with our customers, employees and community by building trust, treating every project with the utmost integrity and exceeding expectations. We look forward to working with you! special ordered and in some cases at no cost to the homeowner as long as the unit is still under Warranty.

"Will is one of the best contractor I worked with, he is very detailed oriented, on schedule, great communication, very responsive, he try his best to do the right thing. He doesn’t use cheap materials or try to cut corners. I will 100 % recommend him to my family and friends. "

Mayank S on February 2026

All Island Additions and Renovations is dedicated to providing our customers with the best quality and craftsmanship. We are here to build relationships with our customers and communities and to provide our employees with a great place to work. All Island Additions and Renovations is a leader in providing our customers with the highest quality products and craftsmanship in an honest, efficient, and professional way. Our pledge is to create successful relationships with our customers, employees and community by building trust, treating every project with the utmost integrity and exceeding expectations. We look forward to working with you! special ordered and in some cases at no cost to the homeowner as long as the unit is still under Warranty.

"Will is one of the best contractor I worked with, he is very detailed oriented, on schedule, great communication, very responsive, he try his best to do the right thing. He doesn’t use cheap materials or try to cut corners. I will 100 % recommend him to my family and friends. "

Mayank S on February 2026

Avatar for Homecraft Remodeling Corp.

Homecraft Remodeling Corp.

4.88(
72
)
•Approved Pro

Homecraft Remodeling Corp.

4.88(
72
)
•Approved Pro
Customers say: Quality work
Recommended by 94% of Angi customers
Recommended by 94% of HomeAdvisor customers
37 years of experience

For over two decades, our award winning company has been a full service contractor, providing all types of home improvements. Our accredited designers and certified remodelers can help you with any project, including dormers, additions, extensions, kitchens, baths, and basements. We are also certified installers for the best in roofing, siding and windows. We only use licensed electricians and plumbers for our projects. Please visit our website for information www.homecraftonline.com

"Norman helped us to make our Master Bathroom modern and usable. The process was easy, straightforward and relatively quick! Norman's showroom was a great meeting spot to review and talk about design, choose materials and go over any details. He was communicative and helpful in answering any and all questions throughout the process. We are thrilled with our new Master Bath that feels like we are at a hotel or spa. Thank you Norman and team. Highly recommend Homecraft!"

Lauren K on February 2023

For over two decades, our award winning company has been a full service contractor, providing all types of home improvements. Our accredited designers and certified remodelers can help you with any project, including dormers, additions, extensions, kitchens, baths, and basements. We are also certified installers for the best in roofing, siding and windows. We only use licensed electricians and plumbers for our projects. Please visit our website for information www.homecraftonline.com

"Norman helped us to make our Master Bathroom modern and usable. The process was easy, straightforward and relatively quick! Norman's showroom was a great meeting spot to review and talk about design, choose materials and go over any details. He was communicative and helpful in answering any and all questions throughout the process. We are thrilled with our new Master Bath that feels like we are at a hotel or spa. Thank you Norman and team. Highly recommend Homecraft!"

Lauren K on February 2023

Avatar for HD Renovations

HD Renovations

4.73(
101
)
•Approved Pro

HD Renovations

4.73(
101
)
•Approved Pro
Customers say: Quality work
Recommended by 93% of Angi customers
Recommended by 93% of HomeAdvisor customers
16 years of experience

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

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

See all articles