Top-rated addition to existing structure builders.

Get matched with top addition to existing structure builders in Westport, 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 Westport

Avatar for Casieri Construction Co, LLC
Casieri Construction Co, LLC
5.0(
30
)
Addition to Existing Structure - Build

Serving Westport, MA and surrounding areas

Approved

In business since 1989

Free estimates

Credit card accepted

"Hired Casieri construction to build decks and a carport as part of a new construction project. James and his crew do a great job and he is very responsive and timely. I would highly recommend them for any projects!"
Front view
Side view
Front view
After photo
Front view

+26

Response time10 hrs
Response rate100%
2 neighbors recently requested a quote
Avatar for Ocean Break Remodel, LLC
Ocean Break Remodel, LLC
5.0(
19
)
Addition to Existing Structure - Build

Serving Westport, MA and surrounding areas

Approved

In business since 1999

Free estimates

Small jobs welcome

"Ocean Break Remodel started our renovations in the Fall of 2020. Peter and his crew tore down our existing front porch and steps and replaced it with a new construction with trex decking and vinyl railings and posts. Their work was outstanding. Later that Fall they removed our hot tub in our master bathroom and replaced it with a beautiful fully tiled walk in shower. It came out wonderful. They also put down waterproof vinyl flooring in both of our bathrooms. They installed backsplash on the two long walls of our kitchen. Each task - OUTSTANDING work. This past two weeks (June 2021), they painted our utility room, kitchen ad dining room, put new waterproof vinyl flooring in the kitchen and utility room. This past two weeks they also built us a new deck (20' x 25') of gray trex decking with white vinyl railings and posts. Our new deck is fantastic. We are more, more than totally satisfied with Peter of Ocean Break Construction/Remodel. I can not express enough for Peter and his crew. They are a pleasure to work with, they are very punctual, clean and hard working."
kitchen remodel
Framing an Addition
finished addition
exterior cedar shingling Little Compton RI
wooden shingles siding

+90

Response time1 day
Response rate88%
Recommended by94%of homeowners
Avatar for Wood Trades LLC
Wood Trades LLC
4.8(
12
)
Addition to Existing Structure - Build

Serving Westport, MA and surrounding areas

Approved

In business since 2021

Emergency services offered

Customers say: True professional

"I recommend this wonderful company without any hesitation. I first contacted Wood Trades LLC seeking a deck quote in September 2024, and John and Karin came out the very next day. From day one, John and Karin provided impeccable service. I cannot say enough wonderful things about their communication, transparency, honestly, and reliability. All current insurance/contractor licenses were provided up front, and any change in cost was documented through clear contracts. In addition, they patiently navigated me through a difficult permitting process from start to finish. Once the work was started, I had a gorgeous new deck in just over one week. I cannot thank this company enough for gaining, and more importantly, maintaining my trust through this project. I certainly look forward to working with Wood Trades again, and highly recommend their services to anyone seeking high quality results from a wonderful company. Exceeded expectations!"
Bathroom remodel
Bathroom remodel
Bathroom remodel
Additional Photos
Additional Photos

+60

Response time7 hrs
Response rate100%
3 neighbors recently requested a quote
Avatar for Liberty Construction & Landscape
Liberty Construction & Landscape
3.5(
109
)
Addition to Existing Structure - Build

Serving Westport, MA and surrounding areas

Approved

In business since 1987

Free estimates

Customers say: Quality work

"Adam the owner knows construction and is easy to work with. His employees are great to work with, are very skilled as well as respectful of both our home and ourselves. They delivered on what we wanted and proved to be flexible in that regard. One project turned into a second one and we would hire Liberty again."
Traditional Landscape - Arch Grand Multiple Roof Lines
New garage doorway
Transitional Garage - Gray Tile Small Windows On Garage Doors
Traditional Walkway - Grey Tile White Columns Around Walkway
Traditional Home Exterior - Cozy Open Painted Balcony Railing

+8

Response time1 day
Response rate100%
14 neighbors recently requested a quote
Avatar for Doherty Construction LLC
Doherty Construction LLC
5.0(
7
)
Addition to Existing Structure - Build

Serving Westport, MA and surrounding areas

Approved

In business since 2010

Free estimates

Warranties offered

"Highly recommend! I recently hired Doherty Construction for a major renovation project at my rental property and couldn’t be happier with the results. Dan stood out because of his knowledge, honesty, and fair pricing. When adding a new bathroom to a very old building, he quickly identified a major plumbing challenge that required new pipes in the crawl space. His assessment, estimate, and scope of work were accurate from the start. In addition to building the new bathroom, Dan and his crew renovated an existing bathroom, kitchen, rebuilt stairs, closets and installed LVP and Pergo flooring in several rooms. The quality of the workmanship and attention to detail were excellent. Dan was professional, responsive, and great to work with throughout the project. He was especially helpful in brainstorming solutions and navigating the inevitable surprises that come with renovating an older property. The project was completed on time, and I would absolutely hire them again!"
New home
New home
New home
New home
New home

+15

1 neighbors recently requested a quote
Recommended by42%of homeowners
Avatar for LionHeart Finish Carpentry, Inc.
LionHeart Finish Carpentry, Inc.
5.0(
9
)
Addition to Existing Structure - Build

Serving Westport, MA and surrounding areas

Approved

Free estimates

Emergency services offered

Warranties offered

"LionHeart Finish Carpentry did an amazing job remodeling our small kitchen. Gustavo and his team were professional, reliable, and paid attention to every detail. The final result came out clean, beautiful, and exactly what we were hoping for. They kept the work organized, communicated well throughout the project, and delivered great quality. I highly recommend LionHeart Finish Carpentry to anyone looking for a trustworthy contractor."
Kitchen
Kitchen
Kitchen
Kitchen
Deck

+9

Avatar for PIERRE CONSTRUCTION LLC
PIERRE CONSTRUCTION LLC
3.9(
35
)
Addition to Existing Structure - Build

Serving Westport, MA and surrounding areas

Approved

In business since 1999

Free estimates

Emergency services offered

"Hired David Pierre, his crew and sub-contractors to install a new bathroom, remodel an existing bathroom, convert an attic to living space, install spray insulation, and rewire our 180 year old house in Plymouth, Ma. David impressed me with his professionalism and straight-forward approach, and I was not disappointed. Honest and committed to the end. Construction jobs always seem to take longer than expected, and this was true here, as well, but I think it is due to the nature of the business -- coordinating the schedules of several subs and dealing with unanticipated issues, especially when working on an old house. David juggled it all well. His core carpentry crew, Paul and Derek, were skilled, dedicated and responsive to requests. They kept the ball rolling forward. Good quality work at reasonable prices -- it would have cost me substantially more to use one of the larger home remodeling firms and I probably would get far less top-level attention."
Response time2 days
62 neighbors recently requested a quote
Recommended by42%of homeowners
...
Showing 1-10 of 169
FAQs for addition to existing structure building service projects in Westport, 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 Westport, 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.