Top-rated addition to existing structure builders.

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

Avatar for iCornerstone, Inc.
iCornerstone, Inc.
4.9(
58
)
Addition to Existing Structure - Build

Serving Cohasset, MA and surrounding areas

Approved

In business since 1988

Customers say: True professional

"My wife and I were looking to have an addition built on our 2 bedroom / 1 bath home back in the winter of 2022. After a phone conversation with Richard, we decided to have him come out to the house. He was very clear with the iCornerstone process, and the benefits of using this process. He is meticulous in measuring and understanding the existing structure. There are no guesstimates and all cost projections are based on the actual materials and labor needed to complete the work. Having such clarity regarding costs before any work begins is not something I've seen in this industry prior to this experience. It was certainly a welcome change. We now have plans for a home addition and complete control over the project. We decide the scope and can customize the plan to our budget. We are grateful to have worked with Richard, and highly recommend him!"
Entertainment center
Entertainment center
Architectural details
computer room left
computer room right

+11

Response time8 hrs
Response rate100%
Recommended by91%of homeowners
Avatar for MMP Construction Inc
MMP Construction Inc
4.6(
222
)
Addition to Existing Structure - Build

Serving Cohasset, MA and surrounding areas

Approved

In business since 2004

Free estimates

Emergency services offered

"When we started our plan of remodeling, the first thing we did was the complete roof replacement including kitchen vent & duct pipe installation to the roof, and new installation of attic ventilation. MMP did not only completed it just as agreed but also very efficiently. The crews were friendly, professional, and careful. The jobs were carefully managed and implemented effectively. I was impressed by Matt, who is the manager, and he does an outstanding job in managing the crews and the progress of the situation, and the communication was clear and always to the point. We then moved to initiate a search for a contractor of two bathrooms remodeling after completing the roof and attic vent, MMP was one of the many candidates. Matt has had not only the best idea and proposals but also shown an impressive & professional sense of evaluating the project accurately, including the possible structural modification as well as a competitive estimate of the cost of the build. His proposal included a rebuild of a wall of the bathroom to expand another one adjacent to it. Matt accepted to use my schematic design image (made with a software tool) and a spreadsheet list of the fixtures that I created - as many as fifty items including TOTO, Grohe, American Standard, Panasonic, and IKEA - to start the job (later changed some of them due to local plumbing code compliance) After beginning the bathroom remodel project, Matt shared what jobs will be done with us timely and efficiently via text so that we feel comfortable enough in knowing what is going on while living in the house of dust & noise from remodeling. The crews, Zen and Mark, were very courteous, extensively experienced, reliable, and friendly with excellent communication, sometimes with songs of 80s rock music. They ask me when more precise specifications are needed and notified me when they feel advance notifications are required. When a change is necessary due to inspection, they informed me and clarified what and why. I have never felt uncomfortable in living together with the remodel job which has lasted over four months. The completed two bathrooms were stunning, just as I imagined. Matt, Zen, and Mark have proved their strong & thoughtful expertise and lived up with my request patiently until completion. Great job. A home remodeling project cannot be successful without having a trusted partner, and my experience with MMP has led me to be glad to share my confidence that MMP has a credential to become your reliable partner to manage a construction project together."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+154

1 neighbors recently requested a quote
Recommended by89%of homeowners
Avatar for Redman Construction Inc.
Redman Construction Inc.
4.5(
75
)
Addition to Existing Structure - Build

Serving Cohasset, MA and surrounding areas

Approved

In business since 1990

Free estimates

Credit card accepted

"Communication with the owners was easy and timely, but very disappointed in the attention to detail and overall oversight of the job on Redman's part with their sub-contractors. We constantly had to directly let the outside workers know of our plans even though we had already discussed items with Redman. We had to ask them to clean up after themselves (one contractor said he never owned a tarp before) and have the electrician come back numerous times to fix things. Overall timeline was met and we are happy with overall design and functionality, but had to aggressively press at the end before our move in date. Items that we were disappointed in - nails showing through new cabinetry (purchased separately), holes still showing in the plastered ceiling and recessed lighting holes cut too big, so that the lights are loose. Tile Contractor was the best by far."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+25

Response time2 days
Response rate100%
8 neighbors recently requested a quote
Avatar for Neary Construction
Neary Construction
4.8(
174
)
Addition to Existing Structure - Build

Serving Cohasset, MA and surrounding areas

Approved

In business since 1995

Free estimates

Emergency services offered

"If you have spoken to the rest now hire the best Liam Neary Construction. I bought a house last year and have probably replaced almost everything. I have worked with at least 20 contractors and not one of them comes close to the talent, hard work, dedication, and professionalism of Liam Neary. Everything he does from the moment he enters your home is done with thoughtfulness, skill, and integrity. He will listen to you, explain things to you, and give you honest feedback based on his vast knowledge and experience. He will send you a detailed estimate of the work needed within a couple of days and follow up with you. He is always available and gets back to you quickly. He respects your time and shows up at your home every day at 7 am and works 6 days a week. He checks in daily and several times a day if necessary to keep the project moving. He has a clean-as-you-go mentality keeping everything neat and orderly. He loves what he does, and it shows in the beautiful, finished products of his work. He will treat your home like his own. Do yourself a favor hire Neary Construction, you will have the work of a true craftsman."
After a little framing is done we start closing up the walls
Another view of recess cabinet and vanity cabinet
This is the Bathroom before demo
Tiling done before final fixtures got installed
Corner shelves

+27

Response time1 day
Response rate100%
4 neighbors recently requested a quote
Mavridis Contracting Services
5.0(
15
)
Addition to Existing Structure - Build

Serving Cohasset, MA and surrounding areas

Approved

In business since 1998

Free estimates

Warranties offered

"Our house is 50+ years old and had the original casement windows, which were starting to fail. In addition, the exterior of our house need to be painted and there were a great deal of shingles or trim that was rotted and needed to be replaced. George and his team did an outstanding job, kept us informed as they went along and completed everything on time and on budget. We couldn't be happier with how the house looks. I would highly recommend Mavridis Contratcing to anyone looking for a contractor."
Condo Reno
Condo Reno
Condo Reno
Condo Reno
Condo Reno

+73

1 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Tejada's Remodeling Inc
Tejada's Remodeling Inc
4.7(
31
)
Addition to Existing Structure - Build

Serving Cohasset, MA and surrounding areas

Approved

Super Service Award Winner

In business since 2024

Free estimates

Warranties offered

"These guys did a remarkable job. They put in a full days work to make a pool deck that had long been neglected look like new again! I highly recommend them to anyone that needs power washing. They did not miss a spot! Really nice guys, hard workers, very respectful!"
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+6

Response time2 days
Response rate100%
9 neighbors recently requested a quote
Avatar for Christopher Jones
Christopher Jones
4.9(
18
)
Addition to Existing Structure - Build

Serving Cohasset, MA and surrounding areas

Approved

In business since 1990

Free estimates

Warranties offered

"Chris did an excellent job designing and building a new deck for my house. He also came to the rescue when having to replace exterior doors after a robbery. He was great at communicating different options with estimates. I really appreciated his punctuality, professionalism, and hard work. Would highly recommend!!"
Custom Roof & Arches
Custom Rood & Arches
Custom Roof & Arches
local jobs
cohasset

+32

Response time2 days
Response rate92%
23 neighbors recently requested a quote
Avatar for MAIZE REMODELING GROUP LLC
MAIZE REMODELING GROUP LLC
5.0(
9
)
Addition to Existing Structure - Build

Serving Cohasset, MA and surrounding areas

Approved

In business since 2008

Free estimates

Emergency services offered

Maize Remodeling Group is a specialized construction group with 20 years of knowledge and experience, all based on hundreds of projects. Our goal is to exceed our customers' dreams for their construction projects and turn them into reality. Maize Group involves experts from various sectors, including designers, architects, engineers, and project managers, who are involved in every step of the project. Additionally, please note that Maize's minimum project amount would be $3,500.00.

Full kitchen remodel
Full kitchen remodel
Full kitchen remodel
Full kitchen remodel
Full kitchen remodel

+9

60 neighbors recently requested a quote
Recommended by44%of homeowners
Avatar for Kingsley Improvements, LLC
Kingsley Improvements, LLC
4.9(
103
)
Addition to Existing Structure - Build

Serving Cohasset, MA and surrounding areas

Approved

In business since 2019

Free estimates

Warranties offered

"Great company. The owner was awesome. Project was done timely and professionally. They also did a concrete patio and deck repairs. I highly recommend this company to anyone. They did an amazing job on it all. Plan to use them for all of our future projects"
Retaining wall with fence
Pool decks
Retaining wall
Flat work
Retaining wall

+102

Response time2 days
1 neighbors recently requested a quote
Recommended by98%of homeowners
...
Showing 1-10 of 365
FAQs for addition to existing structure building service projects in Cohasset, 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 Cohasset, 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.