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 West Yarmouth

Avatar for Capefort Custom Carpentry
Capefort Custom Carpentry
186 Patriot Way
5.00(
19
)
Approved Pro
Capefort Custom Carpentry
186 Patriot Way
5.00(
19
)
Approved Pro
Customers say: Quality work
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
10 years of experience

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, Kichen Cabinets installation and fabrication, we offer 3D plans and a lot more. We will be glad to work with you!

"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, Kichen Cabinets installation and fabrication, we offer 3D plans and a lot more. We will be glad to work with you!

"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
95 Hayward Road
4.40(
61
)
Approved Pro
Liberty Construction & Landscape
95 Hayward Road
4.40(
61
)
Approved Pro
Customers say: Quality work
38 years of experience
Free onsite estimate

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


Avatar for Hoctor Built Homes and Property Management
Hoctor Built Homes and Property Management
10 Hannah Circle
4.78(
92
)
Approved Pro
Hoctor Built Homes and Property Management
10 Hannah Circle
4.78(
92
)
Approved Pro
Customers say: Quick response
Recommended by 94% of Angi customers
Recommended by 94% of HomeAdvisor customers
25 local quotes requested

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!

""

Patrick K on March 2024

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!

""

Patrick K on March 2024


Frank Vitale
5 Lynch Lane
4.26(
21
)
Approved Pro
Frank Vitale
5 Lynch Lane
4.26(
21
)
Approved Pro
Customers say: Quality work
11 local quotes requested
42 years of experience

Frank Vitale has been serving Cape Cod homeowners for over twenty five years. From the permitting process through project completion our goal is to satisfy our customer�s needs. Our attention to detail and pride in our craftsmanship combined with years of experience are our strongest assets. We have learned that integrity, honesty and open communication between parties makes for the best working environment for everyone. On each project, whether large or small, we listen to our customer's wishes and work closely with them to deliver the results envisioned. Every job is important to us.

"Frank and his helper were efficient and methodical. We had some rain delays but pleased with quality of the work"

Cathy S on July 2021

Frank Vitale has been serving Cape Cod homeowners for over twenty five years. From the permitting process through project completion our goal is to satisfy our customer�s needs. Our attention to detail and pride in our craftsmanship combined with years of experience are our strongest assets. We have learned that integrity, honesty and open communication between parties makes for the best working environment for everyone. On each project, whether large or small, we listen to our customer's wishes and work closely with them to deliver the results envisioned. Every job is important to us.

"Frank and his helper were efficient and methodical. We had some rain delays but pleased with quality of the work"

Cathy S on July 2021


Avatar for Kreative Barns, Inc.
Kreative Barns, Inc.
1 Old Main Street
4.97(
34
)
Approved Pro
Kreative Barns, Inc.
1 Old Main Street
4.97(
34
)
Approved Pro
Customers say: Quick response
Recommended by 97% of Angi customers
Recommended by 97% of HomeAdvisor customers
22 local quotes requested

From a whole house renovation to a new construction project we will work with you to turn your dreams into a reality. Whether it is a kitchen or bathroom remodel, a custom built-in or optimizing closets and storage spaces, we have the right tools to ensure functionality and comfort. In our design process we use modern 3D technology for proper flow and placement, enabling you to visualize the new space in clarity and detail. Along with our name, our team, company and vision have also evolved. We take pride in ensuring that every project is handled with the highest level of integrity and professionalism. Long lasting, quality product is our goal and we work hard to achieve it. Great creativity and attention to detail set us apart from the competition. Individual approach for every new project, ensures efficient communication and personalized results.

"Kreative Barns completed bay window replacement beautifully. Konstantin and crew are professional. Inside and exterior look great.."

Chris L on November 2023

From a whole house renovation to a new construction project we will work with you to turn your dreams into a reality. Whether it is a kitchen or bathroom remodel, a custom built-in or optimizing closets and storage spaces, we have the right tools to ensure functionality and comfort. In our design process we use modern 3D technology for proper flow and placement, enabling you to visualize the new space in clarity and detail. Along with our name, our team, company and vision have also evolved. We take pride in ensuring that every project is handled with the highest level of integrity and professionalism. Long lasting, quality product is our goal and we work hard to achieve it. Great creativity and attention to detail set us apart from the competition. Individual approach for every new project, ensures efficient communication and personalized results.

"Kreative Barns completed bay window replacement beautifully. Konstantin and crew are professional. Inside and exterior look great.."

Chris L on November 2023


Avatar for Cape Property Pros, LLC
Cape Property Pros, LLC
394 Main Street West
4.94(
40
)
Approved Pro
Cape Property Pros, LLC
394 Main Street West
4.94(
40
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
23 years of experience

At Cape Property Pros we are dedicated to providing you with the best home remodeling service from start to finish. Our design approach is unique and designed around the common interest in partnering with each homeowner so we can bring your vision to life, in an all-encompassing approach, one team under one roof. We specialize in large projects such as additions, kitchens, bathrooms, and whole-house remodels. Schedule your FREE in-home or virtual consultation at 508 292 1562.

"From our first meeting we could tell that Boris was a thorough professional and he did not disappoint. He took us through a complicated renovation which included creating an open floor plan, a handicap accessible bathroom, turning a second half bath into a full, and updating an outdated kitchen. Throughout the process Boris was extremely communicative, alerting us to any unexpected changes. He and his team completed the work on time and on budget and results exceeded our expectations. We would highly recommend him and look forward to working with him again in the future."

Sarah G on July 2022

At Cape Property Pros we are dedicated to providing you with the best home remodeling service from start to finish. Our design approach is unique and designed around the common interest in partnering with each homeowner so we can bring your vision to life, in an all-encompassing approach, one team under one roof. We specialize in large projects such as additions, kitchens, bathrooms, and whole-house remodels. Schedule your FREE in-home or virtual consultation at 508 292 1562.

"From our first meeting we could tell that Boris was a thorough professional and he did not disappoint. He took us through a complicated renovation which included creating an open floor plan, a handicap accessible bathroom, turning a second half bath into a full, and updating an outdated kitchen. Throughout the process Boris was extremely communicative, alerting us to any unexpected changes. He and his team completed the work on time and on budget and results exceeded our expectations. We would highly recommend him and look forward to working with him again in the future."

Sarah G on July 2022


Capizzi Home Improvement, Inc.
1645 Newtown Road
4.20(
41
)
Approved Pro
Capizzi Home Improvement, Inc.
1645 Newtown Road
4.20(
41
)
Approved Pro
Customers say: Quality work
50 local quotes requested
49 years of experience

We have served thousands of homes on Cape Cod since 1976. From concept to completion, Capizzi Home Improvement has the experience to handle any custom home renovation whether it is interior or exterior. We are a trusted full-service home improvement and remodeling company serving Cape Cod and the South Shore.

"After many years of Indecision we recently concluded it was time to put in a new kitchen. From cabinets, floors, walls, ceilings, appliances and finally painting - the works!!! We chose Capizzi Home Improvement Company. We had heard they were excellent and had a great reputation for customer satisfaction. We had no idea of the scope of the job and all the work they would have to accomplish. Needless to say this was a very smart choice on our part. From the start there was our designer Diana then to the Caroenters, Jimmy and Dave, the Electricians Dave and Andrew, the Painters Joshua, Jesus and Freddie and the Plumbers Bill and Charlie - all contracted through Capizzi. All were fantastic at their trades. Very professional and knew what they were doing. All of the above coordinated through Gary who managed it all! I would recommend this crew from top to bottom. What a great job they all did! Super, super, super. Kudos to all! P.S. Highly Recommended!!!"

Larry A on October 2023

We have served thousands of homes on Cape Cod since 1976. From concept to completion, Capizzi Home Improvement has the experience to handle any custom home renovation whether it is interior or exterior. We are a trusted full-service home improvement and remodeling company serving Cape Cod and the South Shore.

"After many years of Indecision we recently concluded it was time to put in a new kitchen. From cabinets, floors, walls, ceilings, appliances and finally painting - the works!!! We chose Capizzi Home Improvement Company. We had heard they were excellent and had a great reputation for customer satisfaction. We had no idea of the scope of the job and all the work they would have to accomplish. Needless to say this was a very smart choice on our part. From the start there was our designer Diana then to the Caroenters, Jimmy and Dave, the Electricians Dave and Andrew, the Painters Joshua, Jesus and Freddie and the Plumbers Bill and Charlie - all contracted through Capizzi. All were fantastic at their trades. Very professional and knew what they were doing. All of the above coordinated through Gary who managed it all! I would recommend this crew from top to bottom. What a great job they all did! Super, super, super. Kudos to all! P.S. Highly Recommended!!!"

Larry A on October 2023


Avatar for Outermost Building & Renovations, Inc.
Outermost Building & Renovations, Inc.
3 Towhee Lane
4.95(
10
)
Approved Pro
Outermost Building & Renovations, Inc.
3 Towhee Lane
4.95(
10
)
Approved Pro
Customers say: Quick response
Recommended by 90% of Angi customers
Recommended by 90% of HomeAdvisor customers
6 years of experience

Here at Outermost Building & Renovations, Inc., we pride our company on reliability, great communication, integrity, and quality work. We strongly believe in giving our absolute best in all of our projects no matter how big or small. We are experts in our trade and will always keep you educated on your particular task or project. We look forward to earning your business!

"Ben Dill worked with us in turning a garage loft into a functional, fully built-out room with bath. He is a creative craftsman who, with his team, did a beautiful job on the project. He is both easy-going and professional and clearly has a passion for his work. We appreciated his suggestions on many of the myriad details, particularly in relation to materials and finishing touches. He came in on budget and communicated regularly for clarification of plans when necessary. We enthusiastically recommend Ben and his team at Outermost Building & Renovations!"

B A on April 2025

Here at Outermost Building & Renovations, Inc., we pride our company on reliability, great communication, integrity, and quality work. We strongly believe in giving our absolute best in all of our projects no matter how big or small. We are experts in our trade and will always keep you educated on your particular task or project. We look forward to earning your business!

"Ben Dill worked with us in turning a garage loft into a functional, fully built-out room with bath. He is a creative craftsman who, with his team, did a beautiful job on the project. He is both easy-going and professional and clearly has a passion for his work. We appreciated his suggestions on many of the myriad details, particularly in relation to materials and finishing touches. He came in on budget and communicated regularly for clarification of plans when necessary. We enthusiastically recommend Ben and his team at Outermost Building & Renovations!"

B A on April 2025


Daniel McGrath
312 Camp Street
5.00(
2
)
Approved Pro
Daniel McGrath
312 Camp Street
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 Tatra Building Company, Inc.
Tatra Building Company, Inc.
1268 MA-28
4.81(
13
)
Approved Pro
Tatra Building Company, Inc.
1268 MA-28
4.81(
13
)
Approved Pro
Super Service Award
Customers say: True professional
Recommended by 92% of Angi customers
Recommended by 92% of HomeAdvisor customers
16 local quotes requested

Tatra Building Company provides general construction services for Cape Cod and South Shore area. We are committed to excellence, offering years of experience and fast, friendly service. Bridging design, construction and mechanical services, we deliver the best product, value and price. Shop around and then give us the call last, you will be glad you did. From a simple task like new electrical service, water heater or bathroom remodeling, to a new home or business property design and construction. Really..... Superior quality, attention, best price, forever relationship

"These people are HIGHLY professional and do the work RIGHT AWAY! Very reasonable prices! Would hire again!"

Barbara T on December 2024

Tatra Building Company provides general construction services for Cape Cod and South Shore area. We are committed to excellence, offering years of experience and fast, friendly service. Bridging design, construction and mechanical services, we deliver the best product, value and price. Shop around and then give us the call last, you will be glad you did. From a simple task like new electrical service, water heater or bathroom remodeling, to a new home or business property design and construction. Really..... Superior quality, attention, best price, forever relationship

"These people are HIGHLY professional and do the work RIGHT AWAY! Very reasonable prices! Would hire again!"

Barbara T on December 2024

...
Showing 1-10 of 612

Addition to existing structure building services FAQs

Building an in-law suite takes between two and seven months. Converting an existing basement, attic, or room can be done in about two months. Constructing a new addition or detached suite often takes four to five months for construction, plus one to two months for permits. The bigger the suite, the longer it will take. 

Yes, you can build an in-law suite in your backyard if you meet local building codes and zoning regulations. An in-law suite often occupies 300 to 800 square feet. Be sure to follow size restrictions, utility separations, and entrance requirements. Hiring a qualified contractor ensures you meet all regulatory requirements because they can pull permits, double-check local code, and gather other skilled pros to work on your suite. 

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.
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.
Outdoor view of the modern house
Apr 22, 2025
Apr 22, 2025
Explore how square footage, room type, home additions, and other common factors affect house renovation costs with our detailed cost guide.
A rustic wooden cabin in the woods
Apr 21, 2025
Apr 21, 2025
Discover how much a log cabin costs to build, exploring how factors like its size, site prep, utilities, finishes, and labor rates affect the total price.
CONTRACTOR LOOKING OVER HOME DEVELOPMENT
Apr 19, 2025
Apr 19, 2025
Budget for your general contractor’s hourly rate by considering factors such as project scope, fee structure, pricing model, and more.
stucco home with cracks from earthquake damage
Apr 16, 2025
Apr 16, 2025
Work out the full cost to repair earthquake damage based on the type of damage, including foundation issues, utility lines, and cracked walls.
Share project details to get started.