Constraction reviews across the US

Excellent communication and service! I still can’t believe how fast they stripped the two layers of roofing shingles. My new roof is just perfect! Thanks for a great job at a fair price!

Only because it's not possible to give ZERO STARS. First, may I say we never hired them to do a roofing job. The attached photos are what I came home to. I asked why they were set up in our driveway with equipment, machines, ladders and they had their work truck parked in the other space we pay to have plowed. No one answered. Not one word. Not excuse me, not sorry. Nothing. I thought there could be a language barrier. My Spanish is minimal at best. I tried to speak to the person in charge and he was receptive to me in Spanish, but as I said I am limited. I called the "24 hours emergency line" I am still waiting for a call back. Please note the house on the right was having the roof done. They have a full driveway. This is how they chose to set up. The person that disperses the crew is responsible. As I said he has still not bothered to call.

Alex was a pleasure to work with. Alex and his team were nothing but proffesional and thorough. Every detail of the project was communicated clearly, and the work was done on schedule. I would highly recommend Cornerstone for any project.

I contracted Alex for a tile-shower remodeling. He was responsive getting a quote together for me, did beautiful work, and even completed some other odd jobs for me to make the space more comfortable and efficient. The shower is amazing and exactly what I envisioned.

I am so happy with the quality of work that I have already made a deposit with Alex for my next remodel project.

Alex repaired a leak around our chimney and installed a roof vent on our house. His work was very professional and we were very happy with the work. He quoted us a price and did not change though the job took longer. Alex left the property spotless at the end of the job. He was always friendly and had a smile on his face. I would recommend his company to anyone.

I am so thankful that Alex Annunziatra was recommended to me. He and his crew were respectful, friendly, listened to my suggestions and always arrived when scheduled or called to say otherwise. Alex's workmanship was top quality, building kitchen cabinets and tile work. He worked hard to meet my deadline. If Alex was overseeing the work done by his crew he would stop in to check on quality and progress. Communication was made easy through texts, with Alex responding almost immediately. I highly recommend Cornerstone Contractors & Property Management. I enjoyed having Alex here in my home and would hire him again in a minute!!

Alex/Cornerstone Contractors was amazing to work with for our bathroom remodel! he was professional, responsive, dependable and extremely hardworking! he showed up on time and worked tirelessly all day. he asked our input along the way, but also made some excellent executive decisions and offered great insights/advice. he took care to be mindful of our home, protecting our floors and cleaning up after himself. He was attentive to detail and really took quality time with our bathroom. amazing tile work for both the flooring and shower wall. would highly recommend Alex and his small crew! We are so so happy with our bathroom.

We recently has some trim work done by Cornerstone. They had to reproduce custom trim from another contractor and they did an amazing job. They also made from scratch barn doors for the bedroom closet that are so beautiful! We highly recommend Cornerstone.

Alex and his crew were very professional, friendly and open to our suggestions and questions. We are so pleased with the new entryway and complete remoding of our bathroom. We are ready to hire them again for further projects!!

We had both a complete kitchen renovation and a shower re-tiled. The end result was absolutely beautiful in both cases. Each job presented with some issues but they were all worked through to my complete satisfaction. Alex made sure that I was happy with the finished product and I appreciated his dedication to making sure I was indeed happy. I would recommend him without reservation.

Clean, Efficient, Communicative. The three most important attributes to a contractor. I look forward to partnering again with them in the near future.

-Essex Builders Corp

Jason has been incredibly helpful in ensuring that my job is completed both on time and efficiently. He always answers his phone promptly and is willing to send his team out on short notice whenever I need them. I couldn't ask for a better framing and drywall crew. Working with this company has been a truly positive experience.

I had a great experience working with Fortin Building Systems in Merrimack, NH. From start to finish, their team was professional, responsive, and incredibly detail-oriented. They took the time to understand exactly what I was looking for and delivered results that exceeded expectations.

The quality of workmanship really stood out, and it’s clear they take pride in what they do. Communication was smooth throughout the entire process, and everything stayed on schedule, which made the whole experience stress-free.

If you're looking for a reliable and skilled construction company, I would absolutely recommend Fortin Building Systems.

Hired Quantum Contracting to renovate a 30 year old 12x23 deck. Liked everything about them. Detailed estimate, friendly, professional, quality work. We wanted them to keep the original frame to save costs. The frame had multiple issues, and they came up with solutions to address each one and they did an outstanding job. A great experience overall and the finished deck looks terrific. Hope to hire them for future projects.

Our experience with everyone at Quantum was great. They just redid our deck for a reasonable price and the workmanship could
not be better. From first meeting with Dustin, who sets it up to the owner Tyler who keeps watch
It was a rough time getting started because of crazy Spring weather but found a window The guys doing the work were all excellent and knew their stuff. Austin was first on site and told me the plan, Then Dakota and Tyler #2 came in and those two didn't sop till 3 days later. Plus were a lot of fun to work with.
I will definitely use Quantum again.

We recently had construction work done at our home and couldn’t be more pleased with the results. The team was highly efficient, maintained outstanding communication throughout the project , and demonstrated outstanding workmanship and craftsmanship. Every detail was handled with care and professionalism . We highly recommend them to anyone looking for construction services !

The latest project done by Quantum Contracting for my home was replacing windows. Jesse did a fantastic job performing this task and I am very pleased. Justin was very professional and helpful in helping to choose the best windows to use. Jane was fantastic keeping me apprised of when the work would be started and completed. Tyler has very high standards and knowledge in his work and has assembled people to continue this work ethic. Best company!

Quantum Contracting did a backyard transformation for us with excavating stumps, rock, poison ivy, brush, etc, and adding in fill and leveling our property. We also used them to build a deck- all of which they did in under 2 weeks! They went above and beyond our expectations. They came up with the deck design and had several visions and ideas for our yard. They ended up doing more than we asked for including taking down a dead tree, lining up larger rocks at the edge of the tree-line for a design aspect, and adding rock under the deck so we could use that space for storage. They paid attention to details and made sure everything was cleaned/raked after each day which was important to me with young kids. Everyone was very kind (especially to my digger obsessed toddler), professional, and caring to our needs. Their pricing was more than fair especially with how difficult and rocky our yard is-excavating was not easy! You can tell they are up for any challenge! The pictures don’t do their work justice and how big the transformation was! Thanks again guys!

Quantum Contracting were hired to screen in our front Farmers porch. Justin and Austin started the job as discussed and performed a quality job! The crew were organized and left our home as they found it daily. (Clean & safe job site) very professional to work with; brilliant job well done!
We would hire them for our future projects.

The cabinets I have been left with after I contacted them several times (Yes they have fallen and are completely broken). I have been threatened with apparent extra charges when I told Tyler (owner) what was completed with poor craftsmanship and several situations of PRODUCT FRAUD. Utterly appalling and would not recommend!

Working with Quantum has been nothing but ease. From the first phone call to the finished product I have no complaints. The office is wonderful to work with and talk to and the crew same, as well has a lot of knowledge. I will recommend Quantum to all my friends and family. Outstanding work!