Top-rated addition to existing structure builders.

Get matched with top addition to existing structure builders in Boston, MA

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.

Find Addition to existing structure builders in Boston

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.


Legacy Building Group, LLC

New on HomeAdvisorNew on HomeAdvisor
Approved Pro

Legacy Building Group, LLC

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

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 services that are customizable to each individual project. You will find us to be competitively priced, paying close attention to the details of each and every project that we are involved with. We look forward to building lasting relationships and guarantee your satisfaction!

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 services that are customizable to each individual project. You will find us to be competitively priced, paying close attention to the details of each and every project that we are involved with. We look forward to building lasting relationships and guarantee your satisfaction!


Avatar for REMODELING REMEDIES, LLC

REMODELING REMEDIES, LLC

5.00(
5
)
Approved Pro

REMODELING REMEDIES, LLC

5.00(
5
)
Approved Pro
Customers say: Quick response
32 years of experience
Free onsite estimate

With over 30 years of experience, Remodeling Remedies, LLC specializes in all phases of construction. Our commitment to professionalism, quality craftsmanship and competitive pricing sets us apart in the industry. We also offer a Small Projects Division, which caters to all of the punch list items all homeowners have! We look forward to working with you on your project!

"We hired Rick to convert our Mudroom/entry way into a Handicapped Bathroom. The quality of work - was beyond our expectations. Rick was on site daily - kept the schedule of the project right on track for us. His communication throughout the project was so helpful and greatly appreciated. Highly recommend Rick Leland - Remodeling Remedies, LLC"

Marcia H on June 2025

With over 30 years of experience, Remodeling Remedies, LLC specializes in all phases of construction. Our commitment to professionalism, quality craftsmanship and competitive pricing sets us apart in the industry. We also offer a Small Projects Division, which caters to all of the punch list items all homeowners have! We look forward to working with you on your project!

"We hired Rick to convert our Mudroom/entry way into a Handicapped Bathroom. The quality of work - was beyond our expectations. Rick was on site daily - kept the schedule of the project right on track for us. His communication throughout the project was so helpful and greatly appreciated. Highly recommend Rick Leland - Remodeling Remedies, LLC"

Marcia H on June 2025


Avatar for R & J Construction

R & J Construction

New on HomeAdvisorNew on HomeAdvisor
Approved Pro

R & J Construction

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

We take great pride 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. order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job.

We take great pride 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. order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job.


"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


B LAGRASSA CONSTRUCTION LLC

4.32(
14
)
Approved Pro

B LAGRASSA CONSTRUCTION LLC

4.32(
14
)
Approved Pro
Customers say: Quick response
5 years of experience
Free onsite estimate

B Lagrassa Construction is your one stop shop for all remodeling, decks and home improvement needs. We pride ourselves on quality work, fair pricing and customer satisfaction on every project...we will treat your home like our own. Give us a call today to schedule your free home estimate and ask all the questions you need answers for regarding your dream project. We are licensed and insured for your protection and look forward to adding you to our long list of happy customers!

"We hired Brennan and his company when he first started his company, years ago. We had to structurally change the living room and dining room prior to renovating the kitchen. By the end of the project we had an entire open concept first floor, and brand new kitchen. Between the workmanship, communication, dedication to show up on time, when they said they would, I would highly reccomend B LaGrassa Construction. "

Daniel C on September 2025

B Lagrassa Construction is your one stop shop for all remodeling, decks and home improvement needs. We pride ourselves on quality work, fair pricing and customer satisfaction on every project...we will treat your home like our own. Give us a call today to schedule your free home estimate and ask all the questions you need answers for regarding your dream project. We are licensed and insured for your protection and look forward to adding you to our long list of happy customers!

"We hired Brennan and his company when he first started his company, years ago. We had to structurally change the living room and dining room prior to renovating the kitchen. By the end of the project we had an entire open concept first floor, and brand new kitchen. Between the workmanship, communication, dedication to show up on time, when they said they would, I would highly reccomend B LaGrassa Construction. "

Daniel C on September 2025


LTC ELECTRICAL AND GENERAL CONTRACTING COMPANY

New on HomeAdvisorNew on HomeAdvisor
Approved Pro

LTC ELECTRICAL AND GENERAL CONTRACTING COMPANY

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

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 services that are customizable to each individual project. You will find us to be competitively priced, paying close attention to the details of each and every project that we are involved with. We look forward to building lasting relationships and guarantee your satisfaction!

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 services that are customizable to each individual project. You will find us to be competitively priced, paying close attention to the details of each and every project that we are involved with. We look forward to building lasting relationships and guarantee your satisfaction!


Avatar for W.F. HOGAN, INCORPORATED

W.F. HOGAN, INCORPORATED

4.88(
8
)
Approved Pro

W.F. HOGAN, INCORPORATED

4.88(
8
)
Approved Pro
37 years of experience
Free onsite estimate

***Call Today 617-549-0233***Customer satisfaction is what determines our success, which is why we take a hands-on approach. When interacting with W.F. HOGAN, INCORPORATED, you'll notice that we're particularly focused on the principles of quality workmanship, timely completion, competitive pricing and integrity in all our business dealings. We combine knowledge and research with our extensive practical experience to ensure a specialized approach for your project needs. Contact us today for a fair and accurate estimate of your project. We look forward to adding you to our long and growing list of happy customers.

"Work was done well. Kitchen came out beautiful "

Karen M on October 2025

***Call Today 617-549-0233***Customer satisfaction is what determines our success, which is why we take a hands-on approach. When interacting with W.F. HOGAN, INCORPORATED, you'll notice that we're particularly focused on the principles of quality workmanship, timely completion, competitive pricing and integrity in all our business dealings. We combine knowledge and research with our extensive practical experience to ensure a specialized approach for your project needs. Contact us today for a fair and accurate estimate of your project. We look forward to adding you to our long and growing list of happy customers.

"Work was done well. Kitchen came out beautiful "

Karen M on October 2025


Avatar for iCornerstone, Inc.

iCornerstone, Inc.

4.91(
46
)
Approved Pro

iCornerstone, Inc.

4.91(
46
)
Approved Pro
Customers say: True professional
Recommended by 97% of Angi customers
Recommended by 97% of HomeAdvisor customers
38 years of experience

iCornerstone offers design through construction services and promotes Consumer Controlled Construction as a solution to over-pricing, under performance, unrealistic allowances, and quality issues. We provide designs, labor and material specifications, accurate project costs, camera monitoring, invoice review, project accounting, and construction support that allow the homeowner to act as the general contractor easily and with a minimal time commitment. The first three carry an hourly rate of $100, while the fourth is 15% of the cost of the work as you have defined it. After a free Initial Consultation, we provide a proposal for the cost of our services. Our platform networks regulators, engineers, subcontractors, service providers, and suppliers involved in your project so that everyone knows what everyone else knows, which is the hallmark of transparency and accountability. Everyone is on the same page. Their E-folios resolve the dilemma of "If only I had known, I would have asked." Everyone benefits, and nothing like the platform exists in the industry. Clients must provide us the names of subcontractors we do not know as a means of proving to themselves we do not steer business or have a conflict of interest. This strategy helps our network grow and ensures fairness. Our free, online, Consumer E-Folio / Project Organizer / Property Profile / Research Tool will help you, even if you do not involve us in your project, comes with no strings attached, and respects your privacy. Simply register at icornerstoneinc.com and have fun using it. We claim three remarkable achievements: no client has ever gone over budget; no subcontractor has ever been overpaid or unpaid without cause; and all clients receive the highest quality at the lowest price.

"For our home addition/renovation we are very grateful to have found Richard Connolly and his site iCornerstone. Our vision was a Two-story + basement + livable attic space home addition which would provide significant practical square footage to our existing house and integrate seamlessly with it. We interviewed a number of general contractors but we were overall a bit uncomfortable after the interviews due to gaps in transparency regarding how costs were calculated and how timelines were established, resulting in some lack of confidence. We happened upon Richard’s iCornerstone site via Angies. Richard provided an extremely transparent and detailed description of his unique and practical process, which delivered a set of superb designs along with a truly logical, transparent, and honest listing of costs, both materials and labor, at all stages, and how those costs were derived. Richard also delivered transparency on timelines, and he provided recommendations for all the needed tradespeople that he had historically a close working relationship with; alternatively we could have selected tradespeople of our own choosing. Richard and his process gave us the utmost confidence for proceeding. We proceeded with our renovation under Richard’s guidance and his own crew and the entire process went according to plan with excellent communication, rapport, and confidence at all stages from excavation to final finish work. Transparency, confidence-building, dependability, highly knowledgeable, customer-friendly, and results-oriented are all terms we would use to describe Richard and the iCornerstone process. We strongly recommend Richard for anyone contemplating any home renovation or home addition, large or small."

greg b on December 2025

iCornerstone offers design through construction services and promotes Consumer Controlled Construction as a solution to over-pricing, under performance, unrealistic allowances, and quality issues. We provide designs, labor and material specifications, accurate project costs, camera monitoring, invoice review, project accounting, and construction support that allow the homeowner to act as the general contractor easily and with a minimal time commitment. The first three carry an hourly rate of $100, while the fourth is 15% of the cost of the work as you have defined it. After a free Initial Consultation, we provide a proposal for the cost of our services. Our platform networks regulators, engineers, subcontractors, service providers, and suppliers involved in your project so that everyone knows what everyone else knows, which is the hallmark of transparency and accountability. Everyone is on the same page. Their E-folios resolve the dilemma of "If only I had known, I would have asked." Everyone benefits, and nothing like the platform exists in the industry. Clients must provide us the names of subcontractors we do not know as a means of proving to themselves we do not steer business or have a conflict of interest. This strategy helps our network grow and ensures fairness. Our free, online, Consumer E-Folio / Project Organizer / Property Profile / Research Tool will help you, even if you do not involve us in your project, comes with no strings attached, and respects your privacy. Simply register at icornerstoneinc.com and have fun using it. We claim three remarkable achievements: no client has ever gone over budget; no subcontractor has ever been overpaid or unpaid without cause; and all clients receive the highest quality at the lowest price.

"For our home addition/renovation we are very grateful to have found Richard Connolly and his site iCornerstone. Our vision was a Two-story + basement + livable attic space home addition which would provide significant practical square footage to our existing house and integrate seamlessly with it. We interviewed a number of general contractors but we were overall a bit uncomfortable after the interviews due to gaps in transparency regarding how costs were calculated and how timelines were established, resulting in some lack of confidence. We happened upon Richard’s iCornerstone site via Angies. Richard provided an extremely transparent and detailed description of his unique and practical process, which delivered a set of superb designs along with a truly logical, transparent, and honest listing of costs, both materials and labor, at all stages, and how those costs were derived. Richard also delivered transparency on timelines, and he provided recommendations for all the needed tradespeople that he had historically a close working relationship with; alternatively we could have selected tradespeople of our own choosing. Richard and his process gave us the utmost confidence for proceeding. We proceeded with our renovation under Richard’s guidance and his own crew and the entire process went according to plan with excellent communication, rapport, and confidence at all stages from excavation to final finish work. Transparency, confidence-building, dependability, highly knowledgeable, customer-friendly, and results-oriented are all terms we would use to describe Richard and the iCornerstone process. We strongly recommend Richard for anyone contemplating any home renovation or home addition, large or small."

greg b on December 2025


Avatar for Bauman Remodeling

Bauman Remodeling

4.91(
174
)
Approved Pro

Bauman Remodeling

4.91(
174
)
Approved Pro
Super Service Award
Customers say: Quality work
Recommended by 97% of Angi customers
Recommended by 97% of HomeAdvisor customers
33 years of experience

Bauman Remodeling has consistently proven over the years to have one of the most trusted, talented teams around. Super Service award winners every year from 2008 up to 2021, Family owned & operated. We offer all types of remodeling large and small, from new construction to complicated interior or exterior remodeling. Cost is determined by the job. No travel charges. No service fee. May contact by website, phone or email.

"I can’t recommend Mike and his team highly enough! This was our first major remodel — removing a load-bearing wall, new windows, full kitchen remodel, floor refinishing, and painting — and they made it stress-free and enjoyable. Their communication was clear, timely, and responsive throughout. The quality of work was outstanding: precise, clean, and truly high-end. The team was respectful, professional, and left our home spotless every day. Mike and crew turned our vision into a beautiful reality. If you want excellence and peace of mind, choose them! ⭐⭐⭐⭐⭐ Thank you for an amazing job!"

Ali E on January 2026

Bauman Remodeling has consistently proven over the years to have one of the most trusted, talented teams around. Super Service award winners every year from 2008 up to 2021, Family owned & operated. We offer all types of remodeling large and small, from new construction to complicated interior or exterior remodeling. Cost is determined by the job. No travel charges. No service fee. May contact by website, phone or email.

"I can’t recommend Mike and his team highly enough! This was our first major remodel — removing a load-bearing wall, new windows, full kitchen remodel, floor refinishing, and painting — and they made it stress-free and enjoyable. Their communication was clear, timely, and responsive throughout. The quality of work was outstanding: precise, clean, and truly high-end. The team was respectful, professional, and left our home spotless every day. Mike and crew turned our vision into a beautiful reality. If you want excellence and peace of mind, choose them! ⭐⭐⭐⭐⭐ Thank you for an amazing job!"

Ali E on January 2026

...
Showing 1-10 of 1064
FAQs for addition to existing structure building service projects in Boston, 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 Boston, 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.