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Find Addition to existing structure builders in Weymouth

Avatar for Nelson Builder LLC

Nelson Builder LLC

5.00(
3
)
Approved Pro

Nelson Builder LLC

5.00(
3
)
Approved Pro
Super Service Award
42 years of experience
Free onsite estimate

Whether you're looking to build a new home, renovate an existing one, or need custom cabinetry and millwork, we've got you covered. No job is too small for us, we take pride in delivering high-quality work that meets your unique needs and exceeds your expectations. Contact us today to learn more about how we can help bring your vision to life!

"Nelson did a great job at my home. After discovering a water leak in the kitchen, he quickly made the first repair to stop the water loss. He then helped me through all the insurance steps so that I could get the best possible coverage. The result could not have been better, my new kitchen exceeded my expectations. Thank you Nelson and your team for the quick and efficient work."

Claudia L on April 2025

Whether you're looking to build a new home, renovate an existing one, or need custom cabinetry and millwork, we've got you covered. No job is too small for us, we take pride in delivering high-quality work that meets your unique needs and exceeds your expectations. Contact us today to learn more about how we can help bring your vision to life!

"Nelson did a great job at my home. After discovering a water leak in the kitchen, he quickly made the first repair to stop the water loss. He then helped me through all the insurance steps so that I could get the best possible coverage. The result could not have been better, my new kitchen exceeded my expectations. Thank you Nelson and your team for the quick and efficient work."

Claudia L on April 2025


"They showed up when they said they would and finished the job also when they said it would ."

Steven M on June 2021

xx

"They showed up when they said they would and finished the job also when they said it would ."

Steven M on June 2021


Avatar for M Builders, LLC

M Builders, LLC

New on HomeAdvisorNew on HomeAdvisor
Approved Pro

M Builders, LLC

New on HomeAdvisorNew on HomeAdvisor
Approved Pro
5 years of experience
Free onsite estimate

Our goal is to complete your project to perfection. We look forward to building long lasting relationships with the customers that we serve. We look forward to serving you. Call us today! You will not be disappointed. With 25+ years of experience in construction, Luis Matute and Rony Mendez, longtime friends, decided to put together their skills and found M Builders LLC. Luis holds a General Contractor license, Home improvement license, alongside with other licenses. He has an electrical company and has been supervising construction sites for years now. Rony Mendez, also has an Electrical License with multiple other licenses and has a Security Systems company. He has been supervising construction sites alongside with Luis for years. They have been working together for so long that they do not only consider each other business partners but also family. M Builders is coming to simplify construction for their clients in the State of Massachusetts.

Our goal is to complete your project to perfection. We look forward to building long lasting relationships with the customers that we serve. We look forward to serving you. Call us today! You will not be disappointed. With 25+ years of experience in construction, Luis Matute and Rony Mendez, longtime friends, decided to put together their skills and found M Builders LLC. Luis holds a General Contractor license, Home improvement license, alongside with other licenses. He has an electrical company and has been supervising construction sites for years now. Rony Mendez, also has an Electrical License with multiple other licenses and has a Security Systems company. He has been supervising construction sites alongside with Luis for years. They have been working together for so long that they do not only consider each other business partners but also family. M Builders is coming to simplify construction for their clients in the State of Massachusetts.


Avatar for Loyd's Home Improvement

Loyd's Home Improvement

4.61(
23
)
Approved Pro

Loyd's Home Improvement

4.61(
23
)
Approved Pro
Customers say: Quality work
Recommended by 91% of Angi customers
Recommended by 91% of HomeAdvisor customers
18 years of experience

Loyd's Home Improvement is ready to provide everything and anything your home needs to look and feel new again at affordable prices. With over 25 years of experience, Loyd's Home Improvement has designed and build several Handicapped decks and ramps. Call today for details! Additional DBA - Harold Loyd.

"Harold & his crew, Charlie & Mike were awesome. Came to work on time. They listened to my wants & needs and came up with a plan that worked. Communicated with us through out the process. Their attention to detail was incredible. They went above & beyond their job description. I would highly recommend them on any renovations, they are very talented skilled laborers. It was a pleasure doing business with this company."

John R on December 2024

Loyd's Home Improvement is ready to provide everything and anything your home needs to look and feel new again at affordable prices. With over 25 years of experience, Loyd's Home Improvement has designed and build several Handicapped decks and ramps. Call today for details! Additional DBA - Harold Loyd.

"Harold & his crew, Charlie & Mike were awesome. Came to work on time. They listened to my wants & needs and came up with a plan that worked. Communicated with us through out the process. Their attention to detail was incredible. They went above & beyond their job description. I would highly recommend them on any renovations, they are very talented skilled laborers. It was a pleasure doing business with this company."

John R on December 2024


Avatar for Alcantara Contractor Inc

Alcantara Contractor Inc

4.61(
38
)
Approved Pro

Alcantara Contractor Inc

4.61(
38
)
Approved Pro
Customers say: Quality work
26 years of experience
Free onsite estimate

Alcantara Contractor Inc. is a prestigious company that been around for more than 20 years. The company is fully insured and licensed. Our team is trained and qualified to exceed the expectation on your construction project. We'll match your construction needs with our service. Contact us for a free estimate!

"I truly cannot express how AMAZING Carlos and his crew is and wish that I’d met him two years ago. We were at the tail end of a major renovation that we’d started with another contractor and it was full of all the horror stores that you’d expect; people not showing up, shoddy work, constant delays and more. We’d spoken with a bunch of other builders and had similar results; we were at our wits end and truly wished we’d never started this project that we’d long dreamed of doing. After reading Carlos’ reviews, I called him, resigned to the fact that this would be another frustrating dead-end and explained the status of our project; he came out the next day and sent two crews of carpenters the day after that. In four days, Carlos did what our previous contractor hadn’t been able to do in fourteen months! He fixed a ton of poorly done work (including a set of winding oak stairs- no small feat!) and finished our project in ways we could not have imagined a week ago. Literally every day, my wife and I would say to ourselves, “is this really happening?!” Our house looks amazing, the craftsmanship is incredible and we couldn’t be happier. All of his carpenters are excellent to work with, communicate their ideas clearly, and are extremely clean. They offered ideas as to best use the space without adding to the budget and even fixed things I hadn’t noticed were installed wrong by the previous contractor. They showed up on time, did their jobs well and I truly cannot thank them enough. Thank you Marceil, Marcellino and everyone else at Alcantara! I will literally never hire anyone but Carlos for any building needs and have already referred him to three friends that are looking to do projects ranging from building decks to large interior renovations. Carlos, you’re a lifesaver!"

Robin W on June 2022

Alcantara Contractor Inc. is a prestigious company that been around for more than 20 years. The company is fully insured and licensed. Our team is trained and qualified to exceed the expectation on your construction project. We'll match your construction needs with our service. Contact us for a free estimate!

"I truly cannot express how AMAZING Carlos and his crew is and wish that I’d met him two years ago. We were at the tail end of a major renovation that we’d started with another contractor and it was full of all the horror stores that you’d expect; people not showing up, shoddy work, constant delays and more. We’d spoken with a bunch of other builders and had similar results; we were at our wits end and truly wished we’d never started this project that we’d long dreamed of doing. After reading Carlos’ reviews, I called him, resigned to the fact that this would be another frustrating dead-end and explained the status of our project; he came out the next day and sent two crews of carpenters the day after that. In four days, Carlos did what our previous contractor hadn’t been able to do in fourteen months! He fixed a ton of poorly done work (including a set of winding oak stairs- no small feat!) and finished our project in ways we could not have imagined a week ago. Literally every day, my wife and I would say to ourselves, “is this really happening?!” Our house looks amazing, the craftsmanship is incredible and we couldn’t be happier. All of his carpenters are excellent to work with, communicate their ideas clearly, and are extremely clean. They offered ideas as to best use the space without adding to the budget and even fixed things I hadn’t noticed were installed wrong by the previous contractor. They showed up on time, did their jobs well and I truly cannot thank them enough. Thank you Marceil, Marcellino and everyone else at Alcantara! I will literally never hire anyone but Carlos for any building needs and have already referred him to three friends that are looking to do projects ranging from building decks to large interior renovations. Carlos, you’re a lifesaver!"

Robin W on June 2022


Avatar for Lightship Development LLC

Lightship Development LLC

5.00(
14
)
Approved Pro

Lightship Development LLC

5.00(
14
)
Approved Pro
Customers say: Quick response
1 years of experience
Free onsite estimate

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 the start to the 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

"Dave and Kim came highly recommended by our architect and built a life changing in-law addition to our home and also took on some much needed renovations in our existing home. I'm writing this a year after the work was completed and could not be happier. The quality of the work was great and Dave and Kim kept every promise that was made. I also feel that the trustworthiness of any vendor or contractor can especially be measured when something goes wrong. While it was rare, we had a couple understandable miscommunications along the way. They were extremely fair with how these were handled. Construction costs are so high that it feels really good to still feel like it was money well spent. We also looked at other reputable contractors in the area and found their prices to be competitive. The contractors they worked !with also showed up when they said they would and were polite. Overall it was a really positive experience."

Michael L on May 2025

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 the start to the 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

"Dave and Kim came highly recommended by our architect and built a life changing in-law addition to our home and also took on some much needed renovations in our existing home. I'm writing this a year after the work was completed and could not be happier. The quality of the work was great and Dave and Kim kept every promise that was made. I also feel that the trustworthiness of any vendor or contractor can especially be measured when something goes wrong. While it was rare, we had a couple understandable miscommunications along the way. They were extremely fair with how these were handled. Construction costs are so high that it feels really good to still feel like it was money well spent. We also looked at other reputable contractors in the area and found their prices to be competitive. The contractors they worked !with also showed up when they said they would and were polite. Overall it was a really positive experience."

Michael L on May 2025


Avatar for Fiske Construction Co. Inc

Fiske Construction Co. Inc

5.00(
24
)
Approved Pro

Fiske Construction Co. Inc

5.00(
24
)
Approved Pro
Customers say: Quality work
19 years of experience
Free onsite estimate

With over 20 years of experience, We take pride in quality craftsmanship. We are family owned, and believe in building long-term relationships with our clients by delivering honesty along with exceptional work. We pride our company on reliability, great communication, integrity, and customer service. We are experts in our trade and will do our best to keep you as educated as we can on your particular project. Give us a call today! We look forward to working with you!

"My project was to add a porch to the front of my antique house. I quoted the job out to 3 builders and found the prices all to be similar. Although Fiske Construction was very slightly higher I was impressed with the professionalism of the quote and Mike�s understanding of what I was looking for. I showed him a couple of pictures of the style I wanted and he immediately picked up the details that gave the look I wanted. Mike arranged for the permits and began work as soon as they were set. Mike�s work ethic is far better than many these days, he showed up early and worked hard all day, every day. I never felt that my job wasn�t his top priority. I added a couple of features during the construction , Mike gave me a very fair price on the additional work and arranged for the materials required. Mike is more than just a builder, he is a Craftsman. The fit, finish, and quality of the porch is top notch. I have had neighbors and strangers compliment me on what a beautiful porch and how it looks like it has always been there. It�s not an easy task to add to a house built in the early 1800�s and match the quality of workmanship and style for that period but Mike and his team nailed it, I could not be happier or ask for a single change for the entire project. If I need any building projects in the future I will definitely have Fiske Contruction do the work. These days with some pretty questionable contractors out there Mike Fiske is a shining star and a safe bet for any project you may be"

Homeowner on March 2011

With over 20 years of experience, We take pride in quality craftsmanship. We are family owned, and believe in building long-term relationships with our clients by delivering honesty along with exceptional work. We pride our company on reliability, great communication, integrity, and customer service. We are experts in our trade and will do our best to keep you as educated as we can on your particular project. Give us a call today! We look forward to working with you!

"My project was to add a porch to the front of my antique house. I quoted the job out to 3 builders and found the prices all to be similar. Although Fiske Construction was very slightly higher I was impressed with the professionalism of the quote and Mike�s understanding of what I was looking for. I showed him a couple of pictures of the style I wanted and he immediately picked up the details that gave the look I wanted. Mike arranged for the permits and began work as soon as they were set. Mike�s work ethic is far better than many these days, he showed up early and worked hard all day, every day. I never felt that my job wasn�t his top priority. I added a couple of features during the construction , Mike gave me a very fair price on the additional work and arranged for the materials required. Mike is more than just a builder, he is a Craftsman. The fit, finish, and quality of the porch is top notch. I have had neighbors and strangers compliment me on what a beautiful porch and how it looks like it has always been there. It�s not an easy task to add to a house built in the early 1800�s and match the quality of workmanship and style for that period but Mike and his team nailed it, I could not be happier or ask for a single change for the entire project. If I need any building projects in the future I will definitely have Fiske Contruction do the work. These days with some pretty questionable contractors out there Mike Fiske is a shining star and a safe bet for any project you may be"

Homeowner on March 2011


Avatar for ONE STOP - GENERAL CONTRACTOR LLC

ONE STOP - GENERAL CONTRACTOR LLC

5.00(
2
)
Approved Pro

ONE STOP - GENERAL CONTRACTOR LLC

5.00(
2
)
Approved Pro
1 years of experience
Free onsite estimate

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. Call us today!

"Very professional. Very happy with all the work completed in our basement, after it flooded. "

Tara P on January 2026

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. Call us today!

"Very professional. Very happy with all the work completed in our basement, after it flooded. "

Tara P on January 2026


Avatar for Calesco Build

Calesco Build

5.00(
3
)
Approved Pro

Calesco Build

5.00(
3
)
Approved Pro
1 years of experience
Free onsite estimate

We work extremely hard for the owner and always have the owner's best interest at heart. Our long term vision is for us to become a go to general contractor with capabilities to do multiple types of projects.

"The remodel is still in Phase 1....demolition, clean out,putting in new sewer lines and pouring foundation/footings.We are in close contact with Kevin and Marvin every step of the way.They have given many suggestions and presented options to us as we planned the remodel together.This is a huge undertaking, remodeling and redesigning a 100+ year house into a contemporary, multigenerational home. We are all excited and can't wait to see how it develops.We are at the framing stage...so stay tuned.This will be an incredible transformation!"

MaryGrace D on November 2025

We work extremely hard for the owner and always have the owner's best interest at heart. Our long term vision is for us to become a go to general contractor with capabilities to do multiple types of projects.

"The remodel is still in Phase 1....demolition, clean out,putting in new sewer lines and pouring foundation/footings.We are in close contact with Kevin and Marvin every step of the way.They have given many suggestions and presented options to us as we planned the remodel together.This is a huge undertaking, remodeling and redesigning a 100+ year house into a contemporary, multigenerational home. We are all excited and can't wait to see how it develops.We are at the framing stage...so stay tuned.This will be an incredible transformation!"

MaryGrace D on November 2025


Avatar for American Precision Developers, LLC

American Precision Developers, LLC

5.00(
7
)
Approved Pro

American Precision Developers, LLC

5.00(
7
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
5 years of experience

American Precision was founded by Estenio Lima and Sara Yoffe. Estenio is a licensed construction supervisor and skilled master carpenter who has built, renovated, and restored some of the most beautiful homes in Massachusetts. Sara, the daughter of a contractor, is a lawyer by training and holds both a construction supervisor and real estate broker license. She began her career in real estate and construction in 2018, first by focusing on her family’s portfolio of properties. Sara manages over 150 homes and apartments in Cambridge, Charlestown, and Quincy. Estenio and Sara began collaborating in 2018, developing properties for APD's sister company, Cambridge Prime, and started American Precision in 2021. American Precision specializes in renovation and restoration of existing properties to fit the needs of both homeowners and developers.

"We had the pleasure to work with American Precision Developers over the last 2-3 years. They worked on three separate large projects: (1) a main-level kitchen, dining and living room remodel, (2) basement refinish and mudroom rebuilt (3) bathroom, primary bedroom and family room remodel. Both Sara and Estenio listened carefully to our needs and preferences and offered suggestions based on their experience and desire to provide a high-quality finished product. The craftsmanship and attention to details in the finished spaces are truly impressive. On the main level they transformed a boxy layout into a modern, open-concept kitchen, dining and living room. The bathroom, primary bedroom and family room are now beautiful functional spaces tailored to our needs. APD did a great job on waterproofing and finishing the basement and mud room that are now inviting and well-designed spaces. ADP has an amazing team. We highly recommend them !"

Monia D on February 2025

American Precision was founded by Estenio Lima and Sara Yoffe. Estenio is a licensed construction supervisor and skilled master carpenter who has built, renovated, and restored some of the most beautiful homes in Massachusetts. Sara, the daughter of a contractor, is a lawyer by training and holds both a construction supervisor and real estate broker license. She began her career in real estate and construction in 2018, first by focusing on her family’s portfolio of properties. Sara manages over 150 homes and apartments in Cambridge, Charlestown, and Quincy. Estenio and Sara began collaborating in 2018, developing properties for APD's sister company, Cambridge Prime, and started American Precision in 2021. American Precision specializes in renovation and restoration of existing properties to fit the needs of both homeowners and developers.

"We had the pleasure to work with American Precision Developers over the last 2-3 years. They worked on three separate large projects: (1) a main-level kitchen, dining and living room remodel, (2) basement refinish and mudroom rebuilt (3) bathroom, primary bedroom and family room remodel. Both Sara and Estenio listened carefully to our needs and preferences and offered suggestions based on their experience and desire to provide a high-quality finished product. The craftsmanship and attention to details in the finished spaces are truly impressive. On the main level they transformed a boxy layout into a modern, open-concept kitchen, dining and living room. The bathroom, primary bedroom and family room are now beautiful functional spaces tailored to our needs. APD did a great job on waterproofing and finishing the basement and mud room that are now inviting and well-designed spaces. ADP has an amazing team. We highly recommend them !"

Monia D on February 2025

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FAQs for addition to existing structure building service projects in Weymouth, MA

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 Weymouth, MA 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.