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Major home repair pros (general contractors) in Holtsville

DCS Custom Builder, LLC
195 S Gillette Ave
5.00(
3
)
Approved Pro
DCS Custom Builder, LLC
195 S Gillette Ave
5.00(
3
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
18 years of experience

We’re 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 Additions and Kitchen Remodels, 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!

"I hired DCS to renovate a house for my mother. They had to re-frame walls, move doorways, gut reno 2 bathrooms and the kitchen. They finished the drywall, installed the new tile and cabinets, replaced flooring, and installed a new tile fireplace surround and built a custom wood mantle. Great carpenters. Dick Strine, the principal, is so knowledgeable and thorough. If he can figure out where a problem is coming from in your house, no one can. Great customer service. They have also worked for my in-laws, including building one very large house and renovating another."

Jacqueline P on January 2024

We’re 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 Additions and Kitchen Remodels, 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!

"I hired DCS to renovate a house for my mother. They had to re-frame walls, move doorways, gut reno 2 bathrooms and the kitchen. They finished the drywall, installed the new tile and cabinets, replaced flooring, and installed a new tile fireplace surround and built a custom wood mantle. Great carpenters. Dick Strine, the principal, is so knowledgeable and thorough. If he can figure out where a problem is coming from in your house, no one can. Great customer service. They have also worked for my in-laws, including building one very large house and renovating another."

Jacqueline P on January 2024


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
17 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


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 MIDCO
MIDCO
1012 Park Street
4.94(
15
)
Approved Pro
MIDCO
1012 Park Street
4.94(
15
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
30 years of experience

MIDCO is a design and build corporation that specializes in high end interior and exterior finishes in the New York Metro area. We produce top quality results with customer service being our number one priority. We manage and complete project types ranging from residential and commercial renovations and remodels to new construction and full custom builds.

"Marcel and his are great they were hired by mom unfortunately she passed away and I took over the coordination their work was great very professional very efficient l I would highly recommended and everyone who has come by the house to see was astonished of the workshop a d quality now I have a great new first floor kitchen and bathroom my mom would have been amazed about the transformation of her apartment. So if you need any renovation don't hesitate to co tact marcel and his crew."

Srodin L on May 2024

MIDCO is a design and build corporation that specializes in high end interior and exterior finishes in the New York Metro area. We produce top quality results with customer service being our number one priority. We manage and complete project types ranging from residential and commercial renovations and remodels to new construction and full custom builds.

"Marcel and his are great they were hired by mom unfortunately she passed away and I took over the coordination their work was great very professional very efficient l I would highly recommended and everyone who has come by the house to see was astonished of the workshop a d quality now I have a great new first floor kitchen and bathroom my mom would have been amazed about the transformation of her apartment. So if you need any renovation don't hesitate to co tact marcel and his crew."

Srodin L on May 2024


Avatar for Refined Renovators & Design
Refined Renovators & Design
2231-28 5th Ave
5.00(
5
)
Approved Pro
Refined Renovators & Design
2231-28 5th Ave
5.00(
5
)
Approved Pro

At Refined Renovators & Design, we specialize in transforming spaces with our design expertise for kitchens, bathrooms, and all aspects of residential construction. Our team is highly skilled and experienced in using design programs such as 2020 Design and AutoCAD to bring your vision to life. License #HI-71919

"We had various rooms that needed renovations as new home buyers. We could not be happier with the work done! Care to detail and listening to how we wanted things done was delivered. We were thankful for the suggestions and ideas that came from a professional perspective as it made our home all the more special! Highly recommend. "

Arianna W on June 2025

At Refined Renovators & Design, we specialize in transforming spaces with our design expertise for kitchens, bathrooms, and all aspects of residential construction. Our team is highly skilled and experienced in using design programs such as 2020 Design and AutoCAD to bring your vision to life. License #HI-71919

"We had various rooms that needed renovations as new home buyers. We could not be happier with the work done! Care to detail and listening to how we wanted things done was delivered. We were thankful for the suggestions and ideas that came from a professional perspective as it made our home all the more special! Highly recommend. "

Arianna W on June 2025


Avatar for Sage Builders Syndicate, Inc.
Sage Builders Syndicate, Inc.
12 LITTLE NECK ROAD, SUITE 101
5.00(
5
)
Approved Pro
Sage Builders Syndicate, Inc.
12 LITTLE NECK ROAD, SUITE 101
5.00(
5
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
1 years of experience

Sage Builders Syndicate, Inc. 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

"Detail oriented contractor with fair pricing. Very responsive and completed all work on time. Will absolutely be using them again!"

Victor T on October 2024

Sage Builders Syndicate, Inc. 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

"Detail oriented contractor with fair pricing. Very responsive and completed all work on time. Will absolutely be using them again!"

Victor T on October 2024


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


Avatar for Elevate Construction ECS LLC
Elevate Construction ECS LLC
42 Blackpine Dr
5.00(
4
)
Approved Pro
Elevate Construction ECS LLC
42 Blackpine Dr
5.00(
4
)
Approved Pro
3 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


Avatar for DeVito's Home Improvement & Design
DeVito's Home Improvement & Design
873 Montauk Highway
5.00(
4
)
Approved Pro
DeVito's Home Improvement & Design
873 Montauk Highway
5.00(
4
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
24 years of experience

DeVito's Home Improvement & Design 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.

"Justin and his crew did a great job! Devito's is very professional, as Justin is very knowledgeable and has mamy years experience in the business. They completed the job on time, at the price originally quoted. This particular job took several days. Each day they cleaned up nicely, answered any questions and made sure the job was done right. The year prior, Devitos installed all new windows for us and did an excellent job. I would highly recommend Devitos for any home improvement job."

Robert Y on October 2024

DeVito's Home Improvement & Design 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.

"Justin and his crew did a great job! Devito's is very professional, as Justin is very knowledgeable and has mamy years experience in the business. They completed the job on time, at the price originally quoted. This particular job took several days. Each day they cleaned up nicely, answered any questions and made sure the job was done right. The year prior, Devitos installed all new windows for us and did an excellent job. I would highly recommend Devitos for any home improvement job."

Robert Y on October 2024

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FAQs for major home repair (general contractor) projects in Holtsville, NY

A general contractor oversees a project from start to completion. They create the project’s timeline and schedule, hire, manage, and pay subcontractors and workers, and purchase and deliver building materials and supplies. They’ll also acquire necessary permits and HOA approvals, plan and execute necessary project changes, and make sure work meets quality standards.

Hiring an independent general contractor costs between 10% and 20% of your overall project cost, with larger projects incurring fees up to 25%. This fee covers complete project oversight, scheduling, and subcontractor management. The fee ranges from a few hundred dollars to tens of thousands of dollars, reflecting the full scope of the planned work and ensuring seamless coordination throughout the construction process.

General contractors typically provide estimates at no charge, but some may charge a small fee, especially for more complex projects. It's important to secure a written estimate, as it establishes a transparent agreement on project scope, labor, materials, and any additional fees. This helps protect you against unforeseen expenses and ensures clarity before the work begins.

When hiring a general contractor, you must provide an upfront deposit that ranges from 10% to 20% of your overall project cost. This deposit secures material orders, labor scheduling, and initial project preparations. An upfront deposit exceeding 50% is a clear warning sign and should prompt thorough contract verification before proceeding.

The Holtsville, NY homeowners’ guide to major home repairs (general contractor)
From average costs to expert advice, get all the answers you need to get your job done.
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