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Top-Rated Addition to existing structure builders in Berkley - Updated Nov 2026

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

Serving Berkley, MA and surrounding areas

Approved

In business since 1989

Free estimates

Credit card accepted

"The Casieri construction team was efficient professional timely and qualified would definitely recommend them to anybody needing any type of new construction remodeling they provided quality work in a timely manner"
Front view
Side view
Front view
After photo
Front view

+26

Response time10 hrs
Response rate100%
2 neighbors recently requested a quote
Avatar for iCornerstone, Inc.
iCornerstone, Inc.
4.9(
58
)
Addition to Existing Structure - Build

Serving Berkley, MA and surrounding areas

Approved

In business since 1988

Customers say: True professional

"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."
Entertainment center
Entertainment center
Architectural details
computer room left
computer room right

+11

Response time8 hrs
Response rate100%
Recommended by91%of homeowners
Avatar for Bourke Remodeling and Home Improvements
Bourke Remodeling and Home Improvements
4.9(
35
)
Addition to Existing Structure - Build

Serving Berkley, MA and surrounding areas

Approved

In business since 2008

Free estimates

Emergency services offered

"Bourke Remodeling has done beautiful work at my home. Theyâ ve been my main go to for many of my projects. Thanks to them i have a lovely brick patio, a picture window, and a great walk in shower! They are super reliable very reasonably priced and always communicated very well ! At the moment theyâ re doing a desperately needed foundation upgrade on my older home I highly recommend them and am extremely happy with how all of my home projects have turned out."
Repaired deck-after
Repaired deck-after
Repaired deck- before
Repaired deck- before
Kitchen remodel

+40

Response time2 days
1 neighbors recently requested a quote
Recommended by82%of homeowners
Avatar for Reyes Contractors LLC
Reyes Contractors LLC
5.0(
19
)
Addition to Existing Structure - Build

Serving Berkley, MA and surrounding areas

Approved

Free estimates

Emergency services offered

Warranties offered

"We worked with William on some structural framing reinforcement in our basement. William offered some suggested approaches, was clear in communications, and performed the work in a timely manner. Very happy to recommend!"
Remodeling - General Project
Cape Cod home remodel
Remodeling - General Project
Cape Cod home remodel
Remodeling - General Project

+28

Response time1 day
6 neighbors recently requested a quote
Recommended by94%of homeowners
Ross Construction
4.1(
25
)
Addition to Existing Structure - Build

Serving Berkley, MA and surrounding areas

Approved

In business since 2008

Free estimates

Small jobs welcome

"Very quality conscious contractor who made sure we were happy with the materials and workmanship provided. The business owner checked the daily progress of the work crew and ensured the job was executed professionally and quickly. Adjustments were made per our request without issue when we wished to fine tune details. Would definitely hire again."
Response time2 days
Recommended by94%of homeowners
Avatar for Wood Trades LLC
Wood Trades LLC
4.8(
12
)
Addition to Existing Structure - Build

Serving Berkley, 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%
4 neighbors recently requested a quote
Avatar for L2 Homes
L2 Homes
5.0(
15
)
Addition to Existing Structure - Build

Serving Berkley, MA and surrounding areas

Approved

In business since 2000

Free estimates

Credit card accepted

"These guys did a fantastic job, very professional and clean. They were able to renovate both floors on my two family home within my budget and in a timely fashion. Handled everything from top to bottom, full clean out, gut bathrooms and kitchen, completely transformed the place. Couldn’t be happier with the finish product. Would recommend and hire again!"
Rubber Roof Install
Roof Replacement
Roof Replacement
Roof Replacement
Complete Home Renovation

+8

6 neighbors recently requested a quote
Avatar for Kingsley Improvements, LLC
Kingsley Improvements, LLC
4.9(
103
)
Addition to Existing Structure - Build

Serving Berkley, 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
2 neighbors recently requested a quote
Recommended by98%of homeowners
Avatar for Doherty Construction LLC
Doherty Construction LLC
5.0(
7
)
Addition to Existing Structure - Build

Serving Berkley, 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 Berkley, 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

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