Top-rated addition to existing structure builders.

Get matched with top addition to existing structure builders in your area

Enter your zip and get matched with up to 3 pros

Matching on HomeAdvisor

Share some details icon
Share some details about your home project.
Match with local pros icon
Within moments, match with highly-rated local pros.
Compare quotes icon
Compare quotes and choose the best pro for the job.

Addition to existing structure builders in Randolph

M Y Real Estate and Construction
841 Randolph Avenue
5.00(
2
)
Approved Pro
M Y Real Estate and Construction
841 Randolph Avenue
5.00(
2
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
8 years of experience

At M Y Real Estate and Construction, it is our mission to provide the highest quality of service in all aspects of our business. We are extremely thorough in services that we provide and aim to be very receptive to any client's issues, questions or concerns and handle them promptly and professionally. We take necessary steps to ensure that our clients are completely satisfied with all of our contractual and assumed responsibilities. Above all else, we will fulfill these responsibilities while maintaining the highest ethical standards in both of our work and our character.

"Moses and his team were phenomenal to work with. From the moment we met when we first discussed my project, he instilled me with confidence. He allowed me to see current projects he was working on similar to mine, he genuinely listened to what we wanted and made relevant, excellent suggestions to ensure that our project would meet our expectations, and stay within our budget. He came with excellent recommendations from his previous clients, of which I'm now proud to be one. His communication was always excellent, he didn't mind answering all my ignorant questions, and he worked seamlessly with my architect and kitchen/bathroom designer in order to complete the project within a reasonable timeframe given the scope of the project. Moses consistently went above and beyond expectations in order to make the project as stress-free for me as possible. His team worked tirelessly and while my family and I had to move out of our house due to the nature and extent of the project, he kept in constant contact with me, arranged frequent in-person meetings, and didn't mind me and my kids showing up unannounced to view the progress. My neighbors constantly told me how hard he and his crew were working, as they saw him on-site nearly every day. I would hire Moses and his team again, for any construction project, without hesitation and cannot recommend him or his hard-working team enough. If you are anxious about all the "contractor nightmare" stories out there, hire Moses and his team - you won't regret it! Outstanding!"

Paul B on November 2023

At M Y Real Estate and Construction, it is our mission to provide the highest quality of service in all aspects of our business. We are extremely thorough in services that we provide and aim to be very receptive to any client's issues, questions or concerns and handle them promptly and professionally. We take necessary steps to ensure that our clients are completely satisfied with all of our contractual and assumed responsibilities. Above all else, we will fulfill these responsibilities while maintaining the highest ethical standards in both of our work and our character.

"Moses and his team were phenomenal to work with. From the moment we met when we first discussed my project, he instilled me with confidence. He allowed me to see current projects he was working on similar to mine, he genuinely listened to what we wanted and made relevant, excellent suggestions to ensure that our project would meet our expectations, and stay within our budget. He came with excellent recommendations from his previous clients, of which I'm now proud to be one. His communication was always excellent, he didn't mind answering all my ignorant questions, and he worked seamlessly with my architect and kitchen/bathroom designer in order to complete the project within a reasonable timeframe given the scope of the project. Moses consistently went above and beyond expectations in order to make the project as stress-free for me as possible. His team worked tirelessly and while my family and I had to move out of our house due to the nature and extent of the project, he kept in constant contact with me, arranged frequent in-person meetings, and didn't mind me and my kids showing up unannounced to view the progress. My neighbors constantly told me how hard he and his crew were working, as they saw him on-site nearly every day. I would hire Moses and his team again, for any construction project, without hesitation and cannot recommend him or his hard-working team enough. If you are anxious about all the "contractor nightmare" stories out there, hire Moses and his team - you won't regret it! Outstanding!"

Paul B on November 2023


Avatar for Clement Construction, Inc.
Clement Construction, Inc.
23 Lake Street
New on HomeAdvisorNew on Angi
Approved Pro
Clement Construction, Inc.
23 Lake Street
New on AngiNew on HomeAdvisor
Approved Pro
43 years of experience
Free onsite estimate

Clement Construction Inc is the reliable choice for your remodeling needs. We specialize in high end basement remodels. We pride ourselves on the quality of our work and customer relations. So give us a call!

Clement Construction Inc is the reliable choice for your remodeling needs. We specialize in high end basement remodels. We pride ourselves on the quality of our work and customer relations. So give us a call!


Alliance Group Builders LLC
95 Crestfield Drive
5.00(
2
)
Approved Pro
Alliance Group Builders LLC
95 Crestfield Drive
5.00(
2
)
Approved Pro
Customers say: Quick response
1 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! Book with us online or feel free to give us a call today! 774-240-3445- Jose.

"This company is incredible to work with! They are very responsive, considerate, professional, and deliver high quality results. They go above and beyond to make sure your needs and expectations are met. They are extremely detailed oriented and thorough. They are fairly priced and took care of my home like it was their own. They have put in so much hard work and long hours on my project. Great communication every step of the way. I would recommend this company to everyone! Thank you guys for all your effort and hard work."

Jackie h on November 2024

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! Book with us online or feel free to give us a call today! 774-240-3445- Jose.

"This company is incredible to work with! They are very responsive, considerate, professional, and deliver high quality results. They go above and beyond to make sure your needs and expectations are met. They are extremely detailed oriented and thorough. They are fairly priced and took care of my home like it was their own. They have put in so much hard work and long hours on my project. Great communication every step of the way. I would recommend this company to everyone! Thank you guys for all your effort and hard work."

Jackie h on November 2024


Boston Realty Development
9 Timothy Drive
4.58(
12
)
Approved Pro
Boston Realty Development
9 Timothy Drive
4.58(
12
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
25 years of experience

We specialize in Major Residential Home Improvement, 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!

"Chris was attentive and really helped us understand the needs of an older home. Very pleased and happy with my new kitchen. Worked within our budget too."

Marc G on February 2023

We specialize in Major Residential Home Improvement, 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!

"Chris was attentive and really helped us understand the needs of an older home. Very pleased and happy with my new kitchen. Worked within our budget too."

Marc G on February 2023


Avatar for Empire Home Improvement Corp.
Empire Home Improvement Corp.
1393 Broadway
5.00(
35
)
Approved Pro
Empire Home Improvement Corp.
1393 Broadway
5.00(
35
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
17 years of experience

At Empire Construction, we focus on quality home improvements over quantity. We use our years of experience and expertise as a general contractor to complete your project with perfection. Customer service and honesty are the most important aspects of our business and your satisfaction is guaranteed. Please call us today for an estimate. We look forward to working with you.

"Rocky and his team did a phenomenal job renovating my newly purchased apartment. It was a total renovation including all rooms, floor, ceiling, walls, etc. and we could not be happier with the outcome. Here are the things you can expect when working with Rocky: -Transparency and flexibility in pricing -Consistent updates and communications throughout the projects -Notified early in case there are any potential issues -Timeliness and reliability, they do their best to get the job done within your time frame Rocky provided a very thorough assessment of the project up front, and even took a few measurements early before providing a quote. He had a very detailed scope document and was very honest and transparent when there were scope changes. Most importantly, he cares that you will be happy with the project, and sent his crew multiple times after the project completed to help out with minor touch ups. I highly recommend Empire Home Improvement for anything you need and will definitely be working with them again in the future. Thank you Rocky for all your help with our home!"

Yohanes S on January 2021

At Empire Construction, we focus on quality home improvements over quantity. We use our years of experience and expertise as a general contractor to complete your project with perfection. Customer service and honesty are the most important aspects of our business and your satisfaction is guaranteed. Please call us today for an estimate. We look forward to working with you.

"Rocky and his team did a phenomenal job renovating my newly purchased apartment. It was a total renovation including all rooms, floor, ceiling, walls, etc. and we could not be happier with the outcome. Here are the things you can expect when working with Rocky: -Transparency and flexibility in pricing -Consistent updates and communications throughout the projects -Notified early in case there are any potential issues -Timeliness and reliability, they do their best to get the job done within your time frame Rocky provided a very thorough assessment of the project up front, and even took a few measurements early before providing a quote. He had a very detailed scope document and was very honest and transparent when there were scope changes. Most importantly, he cares that you will be happy with the project, and sent his crew multiple times after the project completed to help out with minor touch ups. I highly recommend Empire Home Improvement for anything you need and will definitely be working with them again in the future. Thank you Rocky for all your help with our home!"

Yohanes S on January 2021


KDS Development
31 Linda Avenue
4.94(
26
)
Approved Pro
KDS Development
31 Linda Avenue
4.94(
26
)
Approved Pro
Customers say: Quick response
31 years of experience
Free onsite estimate

Over 20 years of experience throughout Massachusetts, including Middlesex County and surrounding suburbs. Our services include: New construction, general contracting, additions kitchens, bathrooms, basements, built-in cabinetry, raised ceilings and cathedral ceilings, second story additions, entertainment center build and design, surround-sound, windows replacement old and new, roofing, dormers, all general carpentry. We are fully licensed and insured, plenty of references, free estimates.

"Small but significant weatherproofing job handled with care and knowledge equivalent to building the Brooklyn Bridge. Top notch customer care and concern."

Glenn M on February 2025

Over 20 years of experience throughout Massachusetts, including Middlesex County and surrounding suburbs. Our services include: New construction, general contracting, additions kitchens, bathrooms, basements, built-in cabinetry, raised ceilings and cathedral ceilings, second story additions, entertainment center build and design, surround-sound, windows replacement old and new, roofing, dormers, all general carpentry. We are fully licensed and insured, plenty of references, free estimates.

"Small but significant weatherproofing job handled with care and knowledge equivalent to building the Brooklyn Bridge. Top notch customer care and concern."

Glenn M on February 2025


Avatar for Makeover and Finishes Group Inc
Makeover and Finishes Group Inc
170 Worcester St Suite 201
4.00(
1
)
Approved Pro
Makeover and Finishes Group Inc
170 Worcester St Suite 201
4.00(
1
)
Approved Pro
12 local quotes requested
8 years of experience

We take 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.

We take 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.


Coen Construction
387 Page Street, Suite 10B
4.27(
42
)
Approved Pro
Coen Construction
387 Page Street, Suite 10B
4.27(
42
)
Approved Pro
Customers say: True professional
88 local quotes requested
14 years of experience

We are a licensed and insured residential construction and remodeling company. Our goal is to exceed all of our clients expectations through exceptional customer service and quality craftsmanship. We work with some of the best tradesmen in the industry to deliver a quality finished product. From kitchen and bath remodels to carpentry and painting, we can do it all. Contact us for an estimate on your project today! Check out our instagram for photos and updates @coenconstruction

"I thought I'd provide a 6-month update on the work performed by Coen. In short, we selected them to do some minor renovations to the bedroom and living room - ceiling repair and electrical work - and then paint the entire interior of the unit. It was horrible. We settled a reduced fee and went our separate ways. Since then, we've had to remove the work they did and repaint the entire hallway, bathroom, and kitchen due to paint peeling. Based on the prior experience and having visited during the renovation, they didn't prep a single thing - the walls definitely needed that even prior to other work starting. The new contractors very clearly were able to show how the surfaces weren't prepared at all for paint related to dust under all of the layers from the drywall and other construction work they did. Not a single apology or visit from the owners to date. Don't waste your time, money, or effort on this company whatsoever."

Chuck C on March 2025

We are a licensed and insured residential construction and remodeling company. Our goal is to exceed all of our clients expectations through exceptional customer service and quality craftsmanship. We work with some of the best tradesmen in the industry to deliver a quality finished product. From kitchen and bath remodels to carpentry and painting, we can do it all. Contact us for an estimate on your project today! Check out our instagram for photos and updates @coenconstruction

"I thought I'd provide a 6-month update on the work performed by Coen. In short, we selected them to do some minor renovations to the bedroom and living room - ceiling repair and electrical work - and then paint the entire interior of the unit. It was horrible. We settled a reduced fee and went our separate ways. Since then, we've had to remove the work they did and repaint the entire hallway, bathroom, and kitchen due to paint peeling. Based on the prior experience and having visited during the renovation, they didn't prep a single thing - the walls definitely needed that even prior to other work starting. The new contractors very clearly were able to show how the surfaces weren't prepared at all for paint related to dust under all of the layers from the drywall and other construction work they did. Not a single apology or visit from the owners to date. Don't waste your time, money, or effort on this company whatsoever."

Chuck C on March 2025


Avatar for Maize Restoration & Remodeling
Maize Restoration & Remodeling
100 Russell Road
4.33(
20
)
Approved Pro
Maize Restoration & Remodeling
100 Russell Road
4.33(
20
)
Approved Pro
Customers say: Quality work
121 local quotes requested
15 years of experience

My name is Andrew Chase Piedra. I have been in the general contracting business for over 10 years and have worked on hundreds of projects throughout New England. Each project receives the utmost attention to detail. Whether you want a custom interior renovation, a fine historic restoration, or a simple bathroom remodeling, your job will be treated with our complete attention to every detail. I will make sure your home has the highest quality of craftsmanship from start to finish.

"This was my first time working with a construction company and Chase and his team made everything very easy and we were extremely happy with the work that was done. Everything was done on time, on budget and very professionally. Andrew and Sandy were amazing with communication and James was great to work with making sure we were satisfied. The team helped offer advice and help get everything ordered. We plan to use them again in the future and I highly recommend them to anyone looking."

Robert J on December 2024

My name is Andrew Chase Piedra. I have been in the general contracting business for over 10 years and have worked on hundreds of projects throughout New England. Each project receives the utmost attention to detail. Whether you want a custom interior renovation, a fine historic restoration, or a simple bathroom remodeling, your job will be treated with our complete attention to every detail. I will make sure your home has the highest quality of craftsmanship from start to finish.

"This was my first time working with a construction company and Chase and his team made everything very easy and we were extremely happy with the work that was done. Everything was done on time, on budget and very professionally. Andrew and Sandy were amazing with communication and James was great to work with making sure we were satisfied. The team helped offer advice and help get everything ordered. We plan to use them again in the future and I highly recommend them to anyone looking."

Robert J on December 2024


Avatar for Liberty Construction & Landscape
Liberty Construction & Landscape
95 Hayward Road
4.40(
61
)
Approved Pro
Liberty Construction & Landscape
95 Hayward Road
4.40(
61
)
Approved Pro
Customers say: Quality work
10 local quotes requested
38 years of experience

Liberty Construction & Landscape, has been beautifying homes, baths, kitchens, yards and gardens in Plymouth County since 1987. Our artistry and workmanship is matched only by superior customer service. Whether you need home a new home remodal or new landscaping for your home or simply are looking for simple and economical ways to enhance the beauty of your property, Liberty Construction & Landscape, will be there to help. Our crews will be there to help you with your projects when you need us. If you need to add a deck or brick or stone patio call us today. We treat each customer's home like it is our own, with care and pride.

"Adam and his crew are fantastic! They did a great job adding a bathroom to our basement and helped to make an unused space into something much more functional. From the tile work to the paint color, everything looked great and was done in a very reasonable timeframe. Adam was always easy to reach and everyone on the crew was friendly and helpful. We will continue to use Liberty for future projects and look forward to working with Adam again!"

Mary Kate H on April 2025

Liberty Construction & Landscape, has been beautifying homes, baths, kitchens, yards and gardens in Plymouth County since 1987. Our artistry and workmanship is matched only by superior customer service. Whether you need home a new home remodal or new landscaping for your home or simply are looking for simple and economical ways to enhance the beauty of your property, Liberty Construction & Landscape, will be there to help. Our crews will be there to help you with your projects when you need us. If you need to add a deck or brick or stone patio call us today. We treat each customer's home like it is our own, with care and pride.

"Adam and his crew are fantastic! They did a great job adding a bathroom to our basement and helped to make an unused space into something much more functional. From the tile work to the paint color, everything looked great and was done in a very reasonable timeframe. Adam was always easy to reach and everyone on the crew was friendly and helpful. We will continue to use Liberty for future projects and look forward to working with Adam again!"

Mary Kate H on April 2025

...
Showing 1-10 of 961

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
From average costs to expert advice, get all the answers you need to get your job done.
Kitchen view leading into dining area
Apr 28, 2025
Apr 28, 2025
Use this guide to budget for bump-out addition costs based on factors such as room size, room type, labor, finishes, permits, and more.
House roof with nice window
Apr 28, 2025
Apr 28, 2025
Budget for dormer addition costs based on factors such as roof type, framing, customizations, reinforcement, cladding, labor, and more.
newly installed kitchen countertops in modern kitchen
Apr 26, 2025
Apr 26, 2025
Need to replace your kitchen countertop? Here’s how much it costs, what factors affect cost, and what to expect.
house with new addition built on
Apr 25, 2025
Apr 25, 2025
Planning a home addition? Discover what to expect during the process, including design choices, permits, construction timelines, and key factors that impact your project’s success.
BRIGHT OPEN ATTIC SPACE
Apr 24, 2025
Apr 24, 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.
A white wood ceiling
Apr 23, 2025
Apr 23, 2025
Looking to vault a ceiling? Here’s how much it costs, what factors affect cost, and what to expect.
Share project details to get started.