
Angi Approved
In business since 2020
Free estimates
Emergency services offered
"They showed up when they said they would and finished the job also when they said it would ."


Angi Approved
In business since 2020
Free estimates
Emergency services offered
"They showed up when they said they would and finished the job also when they said it would ."

Angi 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."

Angi Approved
In business since 2011
Free estimates
Emergency services offered
"In 2021, I hired Eric to fix a water leak in my basement. I paid approximately $8000. Three months after the work was done, there was leaking again. He came over and told me that this was a different leak. After I saved up enough money, I was referred to an expert in basement leaks/foundations. He came over and completed the work. When he was doing the work, he proactively asked me who did the work previously. He said he was clearly not done by someone with knowledge of foundations. I have tried to resolve with Eric. At a minimum, I deserve a refund"

Angi Approved
In business since 1989
Free estimates
"Work was done well. Kitchen came out beautiful "

Angi Approved
In business since 2021
Free estimates
Warranties offered
"We had the pleasure to work with American Precision Developers over the last 2-3 years. They worked on three separate large projects: (1) a main-level kitchen, dining and living room remodel, (2) basement refinish and mudroom rebuilt (3) bathroom, primary bedroom and family room remodel. Both Sara and Estenio listened carefully to our needs and preferences and offered suggestions based on their experience and desire to provide a high-quality finished product. The craftsmanship and attention to details in the finished spaces are truly impressive. On the main level they transformed a boxy layout into a modern, open-concept kitchen, dining and living room. The bathroom, primary bedroom and family room are now beautiful functional spaces tailored to our needs. APD did a great job on waterproofing and finishing the basement and mud room that are now inviting and well-designed spaces. ADP has an amazing team. We highly recommend them !"

Angi Approved
In business since 2015
Customers say: Quick response
"I recently had a home built for me in Kennebunk,Maine by Jason and the crew of Mason Sky Enterprises and I have nothing but praise for them, not only did they construct my home to the highest standards in an incredibly timely manner but they were also kind and considerate and endlessly patient when it came to my plethora of never ending questions which I am very grateful for. I highly recommend them for any job whether that be large or small. With much gratitude! SSgt.K Campbell USAF (Ret.)"

Angi Approved
In business since 2018
Free estimates
Warranties offered
"RC Works did our bathroom renovation. We are happy with the process and the beautiful results! Andrey, Mariano and the team are professional, kind and easy to work with. Andrey is a wonderful listener and communicator. He responded to us promptly, managed the project efficiently and transparently, and kept us updated on the work and timeline. Big praises also to Mariano and Neto, who did the carpentry work, glass shower installation, among other tasks. They went above and beyond to deliver high-quality work, arriving on site with bright smiles and hard-working attitudes. We are also happy with the other team members, who are friendly and competent: tile installer for beautiful tiling, plumbers, electrician, painters and cleaners. Overall, we would highly recommend RC works."

Angi Approved
Super Service Award Winner
In business since 1993
Free estimates
Emergency services offered
"I can’t recommend Mike and his team highly enough! This was our first major remodel — removing a load-bearing wall, new windows, full kitchen remodel, floor refinishing, and painting — and they made it stress-free and enjoyable. Their communication was clear, timely, and responsive throughout. The quality of work was outstanding: precise, clean, and truly high-end. The team was respectful, professional, and left our home spotless every day. Mike and crew turned our vision into a beautiful reality. If you want excellence and peace of mind, choose them! ⭐⭐⭐⭐⭐ Thank you for an amazing job!"

Angi Approved
Super Service Award Winner
In business since 2007
Free estimates
Warranties offered
"I hired them to renovate my home. They did a great job"

Angi Approved
In business since 2011
Free estimates
Warranties offered
"I recently hired Coen Brothers Construction on a thorough bathroom renovation, and the outcome was outstanding. Their quality was excellent, and I am delighted with the final result. Their sub-contractors were also great and worked at the same high standards as the Coen Brothers. Although we faced some communication issues at the outset, we eventually worked through them, and it significantly improved throughout the project. They paid attention to detail; when my project manager saw me stripping the trim for reuse, they recommended buying new trim and a lumber yard to get it. And it makes a big difference having new trim with clean, sharp lines. Their tile work took longer than expected, but the miter cuts the trim cuts, and the finish is excellent. They were consistently punctual, respectful of my home, and very tidy - tidying up at the end of each day. While the project took longer than anticipated, the reasonable cost and the team's meticulous attention to detail compensated for it. Coen Brothers Construction also expertly handled all necessary permits and inspections, keeping me informed every step of the way. Overall, I am satisfied with their work and would hire them again for my next project."
From average costs to expert advice, get all the answers you need to get your job done.

Planning a home addition? Discover what to expect during the process, including design choices, permits, construction timelines, and key factors that impact your project’s success.

Looking to vault a ceiling? Here’s how much it costs, what factors affect cost, and what to expect.

Discover how much porcelain countertops cost to install based on factors such as their size, materials, add-ons, and local labor rates.

Budget for bedroom remodel costs based on factors such as bedroom size, remodel type, features, materials, labor, and more.

Use this guide to budget for kitchen island costs, including island style and shape, customizations, countertop options, professional labor, and more.

Budget for sunroom addition costs based on factors such as room type, site prep, professional labor, features, permits, prefab vs. custom designs, and more.