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Find Addition to existing structure builders in Onset

"Wonderful experience with company owner and installation team. Would â  highlyâ  recommend Capefort Custom Carpentry. Professional, very responsive and extremely willing to make us happy! Their work is amazing!"

Paul J on May 2024

Capefort Custom Carpentry is your number-one choice for your high-end carpentry project! We are a team of experts who work on striking projects with great care. Custom Wine Cellars, kitchen renovations, walk-in closets, and custom cabinetry of all kinds.

"Wonderful experience with company owner and installation team. Would â  highlyâ  recommend Capefort Custom Carpentry. Professional, very responsive and extremely willing to make us happy! Their work is amazing!"

Paul J on May 2024


Avatar for Liberty Construction & Landscape

Liberty Construction & Landscape

4.42(
63
)
Approved Pro

Liberty Construction & Landscape

4.42(
63
)
Approved Pro
Customers say: Quality work
12 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 team are outstanding. We built in two stages, adding a basement bathroom, removed a wall and all tge finishing work that goes with it! This was done beautifully! Six months later I had a full addition ( in law apartment) full basement with high ceilings, and tge main house is stunning! It doesn’t feel like an in-law apartment, cathedral ceiling, giant bathroom, all the comforts of home Adam was quick to respond to all my concerns, he always answered his phone and if I didn’t like something he was quick to fix it. I would highly recommend Liberty construction- you won’t be disappointed!"

Ginah F on October 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 team are outstanding. We built in two stages, adding a basement bathroom, removed a wall and all tge finishing work that goes with it! This was done beautifully! Six months later I had a full addition ( in law apartment) full basement with high ceilings, and tge main house is stunning! It doesn’t feel like an in-law apartment, cathedral ceiling, giant bathroom, all the comforts of home Adam was quick to respond to all my concerns, he always answered his phone and if I didn’t like something he was quick to fix it. I would highly recommend Liberty construction- you won’t be disappointed!"

Ginah F on October 2025


Avatar for DiOrio Builders & Designers Inc

DiOrio Builders & Designers Inc

4.63(
119
)
Approved Pro

DiOrio Builders & Designers Inc

4.63(
119
)
Approved Pro
Super Service Award
Customers say: Quality work
20 local quotes requested
59 years of experience

DiOrio Builders and Designers Inc. is a fully licensed and insured company committed to providing homeowners with the highest level of craftsmanship. Built on old fashioned values we are experienced specialists that will complete your project to exact specifications in a timely manner. Quality work is our priority while paying special attention to detail. No job is too big or too small.

"DiOrio did good work and were always professional and communicative."

Andrew L on December 2025

DiOrio Builders and Designers Inc. is a fully licensed and insured company committed to providing homeowners with the highest level of craftsmanship. Built on old fashioned values we are experienced specialists that will complete your project to exact specifications in a timely manner. Quality work is our priority while paying special attention to detail. No job is too big or too small.

"DiOrio did good work and were always professional and communicative."

Andrew L on December 2025


Hoctor Built Homes and Property Management LLC

New on HomeAdvisorNew on HomeAdvisor
Approved Pro

Hoctor Built Homes and Property Management LLC

New on HomeAdvisorNew on HomeAdvisor
Approved Pro
13 local quotes requested
19 years of experience

Hoctor Built Homes has a single mission: Complete Customer Satisfaction and one call does it all services from landscaping to New Home construction. We pride ourselves in being the experts in the industry. Call us for a free quote today!

Hoctor Built Homes has a single mission: Complete Customer Satisfaction and one call does it all services from landscaping to New Home construction. We pride ourselves in being the experts in the industry. Call us for a free quote today!


Avatar for Green Island Homes

Green Island Homes

4.50(
15
)
Approved Pro

Green Island Homes

4.50(
15
)
Approved Pro
Customers say: Quick response
28 years of experience
Free onsite estimate

We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumers 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.

"I was very lucky to find Colin Young and his great crew, carpenter David Hackett and his talented son, Andrew. We were taking down an old deck and adding a room to our house, along with doing a little kitchen remodeling. Dave and Andrew are excellent craftsmen. They also came up with creative solutions to some tricky design problems. Dave and Andrew always showed up on time, worked hard, then cleaned up the site at the end of the day. My step-father was a builder and I learned from him that there are right ways and wrong ways to do a job. Dave and Andrew did things the right way, and never cut corners. I highly recommend Green Island Homes. Also, I got 4 bids on this job and their price was very fair."

Bruce B on February 2025

We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumers 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.

"I was very lucky to find Colin Young and his great crew, carpenter David Hackett and his talented son, Andrew. We were taking down an old deck and adding a room to our house, along with doing a little kitchen remodeling. Dave and Andrew are excellent craftsmen. They also came up with creative solutions to some tricky design problems. Dave and Andrew always showed up on time, worked hard, then cleaned up the site at the end of the day. My step-father was a builder and I learned from him that there are right ways and wrong ways to do a job. Dave and Andrew did things the right way, and never cut corners. I highly recommend Green Island Homes. Also, I got 4 bids on this job and their price was very fair."

Bruce B on February 2025


Avatar for Northstar Construction

Northstar Construction

4.68(
22
)
Approved Pro

Northstar Construction

4.68(
22
)
Approved Pro
Customers say: Quality work
Recommended by 90% of Angi customers
Recommended by 90% of HomeAdvisor customers
14 local quotes requested

Northstar Construction, has a single mission, complete customer satisfaction! We strongly believe in giving our customers the most for their money. We work with only the highest quality materials and experienced professionals providing all architectural needs and building design services. With over 30 years of experience, we have consistently focused on the needs of our customers, providing personalized attention, and a stress free experience. This approach has set us apart from our competition and keeps our customers coming back! We do free estimates and we are great at doing emergency services for anything! Give us a call today!

"Good quick service at a fair price."

Dennis J on September 2024

Northstar Construction, has a single mission, complete customer satisfaction! We strongly believe in giving our customers the most for their money. We work with only the highest quality materials and experienced professionals providing all architectural needs and building design services. With over 30 years of experience, we have consistently focused on the needs of our customers, providing personalized attention, and a stress free experience. This approach has set us apart from our competition and keeps our customers coming back! We do free estimates and we are great at doing emergency services for anything! Give us a call today!

"Good quick service at a fair price."

Dennis J on September 2024


Avatar for FF Crpntry Inc

FF Crpntry Inc

5.00(
12
)
Approved Pro

FF Crpntry Inc

5.00(
12
)
Approved Pro
Super Service Award
42 local quotes requested
Free onsite estimate

FF CRPNTRY is a Cape Cod-based construction company with over 10 years of experience, delivering high-quality work from framing to finish. We specialize in additions, renovations, and complete remodeling — along with decks, siding, roofing, and full interior packages. Our services also include open-concept layouts, energy-efficient upgrades, custom trim, doors and windows, kitchen and bathroom renovations, flooring, and structural repairs. Every project is handled with precision, care, and attention to detail. We’re proud to grow through trusted relationships and client satisfaction. We believe in giving back to the community that supports us, and we’re committed to helping families bring their visions to life one project at a time.

"Besides being price competitive they were very responsive and trustworthy. Their work was great. I am very happy with the deck job. "

Joseph M on December 2025

FF CRPNTRY is a Cape Cod-based construction company with over 10 years of experience, delivering high-quality work from framing to finish. We specialize in additions, renovations, and complete remodeling — along with decks, siding, roofing, and full interior packages. Our services also include open-concept layouts, energy-efficient upgrades, custom trim, doors and windows, kitchen and bathroom renovations, flooring, and structural repairs. Every project is handled with precision, care, and attention to detail. We’re proud to grow through trusted relationships and client satisfaction. We believe in giving back to the community that supports us, and we’re committed to helping families bring their visions to life one project at a time.

"Besides being price competitive they were very responsive and trustworthy. Their work was great. I am very happy with the deck job. "

Joseph M on December 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
18 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


Daniel McGrath

5.00(
2
)
Approved Pro

Daniel McGrath

5.00(
2
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
11 years of experience

Daniel McGrath specializes in residential and commercial addition and remodeling projects. We take great pride in the quality of our work and customer service is our top priority. We look forward to working for you.

"Dan has done multiple projects around my home and his quality is excellent, his service is reliable, and I fully trust him with any repair or remodel. I am planning on using Dan for all my future projects."

BRIAN V on November 2024

Daniel McGrath specializes in residential and commercial addition and remodeling projects. We take great pride in the quality of our work and customer service is our top priority. We look forward to working for you.

"Dan has done multiple projects around my home and his quality is excellent, his service is reliable, and I fully trust him with any repair or remodel. I am planning on using Dan for all my future projects."

BRIAN V on November 2024


Avatar for Built Different Construction, Inc.

Built Different Construction, Inc.

4.93(
7
)
Approved Pro

Built Different Construction, Inc.

4.93(
7
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
21 local quotes requested

Built Different Construction Inc. is a locally owned and operated company that values honesty and integrity in all aspects of our business. Our dedicated team of professionals have years of hands on experience, to provide innovative ideas and suggestions tailored to your projects. Our services are customized to your individual needs, paying close attention to the details of each project that we are involved with. Please feel free to contact us today!

"Absolutely awesome experience dealing with this company. Dylon responded quickly, gave us options and followed through on everything he promised. The roofing team did a great job, and left the job site immaculate. I highly recommend this company and plan to use them for future projects."

LORI T on October 2024

Built Different Construction Inc. is a locally owned and operated company that values honesty and integrity in all aspects of our business. Our dedicated team of professionals have years of hands on experience, to provide innovative ideas and suggestions tailored to your projects. Our services are customized to your individual needs, paying close attention to the details of each project that we are involved with. Please feel free to contact us today!

"Absolutely awesome experience dealing with this company. Dylon responded quickly, gave us options and followed through on everything he promised. The roofing team did a great job, and left the job site immaculate. I highly recommend this company and plan to use them for future projects."

LORI T on October 2024

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FAQs for addition to existing structure building service projects in Onset, 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 Onset, 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.