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Addition to existing structure builders in Mount Sinai

Showing 1-10 of 970
Fragoletti Builders, Inc.
8 Casey Lane
5.00(
3
)
Approved Pro
Fragoletti Builders, Inc.
8 Casey Lane
5.00(
3
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
40 years of experience

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!

""

Tracy A on July 2021

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!

""

Tracy A on July 2021


Atlantic Shore Builders & Developers
156 East Main Street
5.00(
3
)
Approved Pro
Atlantic Shore Builders & Developers
156 East Main Street
5.00(
3
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
11 local quotes requested

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. We are watchful of our customer's interests and make their concerns the basis of our business. Give us a call for a quote today!

"Friendly, low price, and best of all the painter, Francisco, is a REAL professional who’s not about doing a slipshod job and leaving. He took as many days as he needed at a flat rate and ensured the job was top quality."

Alexander M on October 2021

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. We are watchful of our customer's interests and make their concerns the basis of our business. Give us a call for a quote today!

"Friendly, low price, and best of all the painter, Francisco, is a REAL professional who’s not about doing a slipshod job and leaving. He took as many days as he needed at a flat rate and ensured the job was top quality."

Alexander M on October 2021


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 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


Concorde Remodeling, Inc.
8 Lynam Court
4.69(
41
)
Approved Pro
Concorde Remodeling, Inc.
8 Lynam Court
4.69(
41
)
Approved Pro
Super Service Award
Customers say: Quick response
Recommended by 92% of Angi customers
Recommended by 92% of HomeAdvisor customers
17 years of experience

We are a locally owned and operated company serving the Long Island area. We are committed to excellence in everything we do. Remodeling is our passion and customer service is our specialty. Please call Concorde Remodeling, Inc., today! *DOES NOT HANDLE INSURANCE CLAIMS *

"I recently had the pleasure of working with Bob from Concorde on the finishing of a basement into an apartment, and I am thrilled with the results. From start to finish, the entire process was handled with remarkable professionalism and attention to detail. **Project Management:** Rob, the project manager, was outstanding. He maintained excellent communication throughout the project, keeping me informed of progress and any potential issues. **Quality of Work:** The quality of work delivered by Concorde was exceptional. Every aspect of the construction was executed to the highest standards, from the foundation to the final touches. **Overall Experience:** Overall, my experience with Concorde was nothing short of excellent. They delivered a high-quality construction project that met all my expectations and more. I highly recommend Concorde for any construction needs and will certainly consider them for future projects."

Chrysanthy P on May 2024

We are a locally owned and operated company serving the Long Island area. We are committed to excellence in everything we do. Remodeling is our passion and customer service is our specialty. Please call Concorde Remodeling, Inc., today! *DOES NOT HANDLE INSURANCE CLAIMS *

"I recently had the pleasure of working with Bob from Concorde on the finishing of a basement into an apartment, and I am thrilled with the results. From start to finish, the entire process was handled with remarkable professionalism and attention to detail. **Project Management:** Rob, the project manager, was outstanding. He maintained excellent communication throughout the project, keeping me informed of progress and any potential issues. **Quality of Work:** The quality of work delivered by Concorde was exceptional. Every aspect of the construction was executed to the highest standards, from the foundation to the final touches. **Overall Experience:** Overall, my experience with Concorde was nothing short of excellent. They delivered a high-quality construction project that met all my expectations and more. I highly recommend Concorde for any construction needs and will certainly consider them for future projects."

Chrysanthy P on May 2024


Thomas O'Neill Custom Design, Inc.
312 Noyac Road
5.00(
2
)
Approved Pro
Thomas O'Neill Custom Design, Inc.
312 Noyac Road
5.00(
2
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
14 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.

"."

Homeowner 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.

"."

Homeowner on May 2020


VP Quality Contracting
168 W Lido Promenade
4.87(
54
)
Approved Pro
VP Quality Contracting
168 W Lido Promenade
4.87(
54
)
Approved Pro
Customers say: Quick response
Recommended by 98% of Angi customers
Recommended by 98% of HomeAdvisor customers
17 years of experience

VP Quality Contracting is a family-owned and -operated, full-service construction company. Our professionalism and quality craftsmanship will accurately reflect your taste and lifestyle. Come visit our new showroom!

"It was a very pleasant experience to work with Mr. Vinny. He provided great service, advice and work was done properly. They were always on time, and everything was communicated professionally. I would defiantly hire them again."

H P on June 2024

VP Quality Contracting is a family-owned and -operated, full-service construction company. Our professionalism and quality craftsmanship will accurately reflect your taste and lifestyle. Come visit our new showroom!

"It was a very pleasant experience to work with Mr. Vinny. He provided great service, advice and work was done properly. They were always on time, and everything was communicated professionally. I would defiantly hire them again."

H P on June 2024

...
Showing 1-10 of 970

Addition to existing structure building services FAQs

How far you can push a room depends on the structure you choose. A cantilevered bump-out can extend 24 inches before building codes require its own footing or foundation. Anything longer needs engineered support and a permit. Check local codes or consult with a structural professional before finalizing plans to ensure your design remains safe and compliant.

Most bump-outs are completed within one to four weeks, even with minimal electrical, plumbing, or HVAC work. Their compact size means less demolition, simpler inspections, and fewer weather-related delays compared to a full-scale addition. Your contractor can provide a more precise timeline once they have determined the scope, materials, and permit schedule, but plan on having the extra square footage ready in approximately a month.

The homeowners guide to addition to existing structure building services
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