Logo of AlphaCon Building Group LLC

AlphaCon Building Group LLC

  • 34 Bush Hill Rd, Hudson, NH 03051
  • Industrial Roofing
  • Locally Owned & Operated
  • Warranties Offered
  • Metal Roof
  • Green Roof
Hours
Mon7:30 AM - 9:00 PM
Tue7:30 AM - 9:00 PM
Wed7:30 AM - 9:00 PM
Thu7:30 AM - 9:00 PM
Fri7:30 AM - 9:00 PM
Sat7:30 AM - 9:00 PM
Sun7:30 AM - 9:00 PM

About the Business

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Recommended Reviews

Overall Company Rating
Excellent 4.8
Out of 17 reviews
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Show first:
Donald Croteau
Jun 5, 2025

work was amazing, price was great, actually went above and beyond what we discussed for no additional charge, very highly recommended, will definitely use again, A++++

Julio Pena
Feb 28, 2025

I had my roof replaced by AlphaCon, and I’m really happy with the results! Derek, the owner, was a pleasure to work with from the beginning. He made the whole process straightforward and hassle-free. When we first met, Derek took the time to explain everything I needed to know about the different roofing materials and options. His friendly approach made it easy to discuss my concerns. Whenever I had a question or needed an update on the project, Derek was always quick to get back to me. It was reassuring to know I could reach out anytime and get a timely response. The crew that worked on my roof was professional and efficient. I appreciated that they kept the area clean and safe, which is important to me because I have 2 dogs that spend alot of time in the yard. Derek even checked in after the project was completed to ensure everything was to my liking, which shows how much they care about their customers. Overall, I highly recommend AlphaCon for anyone in need of roofing services. They combine great workmanship with outstanding customer service!

Christine Zube
Feb 26, 2025

Our recent kitchen remodel was an extremely positive experience. Our remodeled kitchen works great and looks wonderful. I couldn't be happier. The cabinets and countertops are beautiful. The work was minimally disruptive to our household and the quality of the work was excellent. Derek was awesome! He was able to successfully manage to schedule the many subcontractors to ensure a timely outcome. The work delivered exceeded expectations and we would strongly recommend to friends.

Nitro Powerful
Feb 26, 2025

Alphacon did an AMZING job on our 2nd story, 12x16 composite deck! The crew was punctual and professional, and cleaned up after themselves at the end if each day like they were never there. It's so nice to have a dependable contractor when you need one!

Rosemary Cabrera
Apr 20, 2024

AlphaCon recently completed the transformation of my 3 season porch to an all season sunroom and I could not be more pleased with the final results. From the initial contact and throughout the whole process, Derek kept an open line of communication. He took into account all my suggestions and made the necessary adjustments to comply with building codes all while he and his team worked diligently to ultimately create the space I envisioned. The quality of workmanship comes only from someone that takes pride in their work (a quality that Is all too often missing) and experience and that includes not only Derek and his son, Noah, but the several subcontractors used for electrical, plumbing, painting and flooring. This experience has been the most non-stressful, successful and timely renovation I have done, and there have been many. To have worked with such pleasant, knowledgeable, responsible, and professional people is worth its weight in gold. I look forward to having them do my kitchen remodel in the near future. It is without hesitation that I recommend anyone looking to have quality work done to give AlphaCon a call, you'll be glad you did.

Yvonne Driscoll
Dec 26, 2023

After being referred by a friend, doing some research, and meeting with Derek, the owner, we hired AlphaCon to help build our new home. He helped facilitate the design as well, with a wonderful architect.

We were new to the process, and from the beginning, Derek made it an easy one. He even went as far as helping us choose the best of the available lots to build on, taking into consideration the slope of land, how much ledge, location, views, etc.

He took the time to really listen to what we wanted functionality and style-wise. There is a really nice aesthetic in our neighborhood, and we wanted to balance that with our desire to not have anything too ostentatious or too big, it’s our forever home, and it was built with aging and upkeep needs in mind. Derek did a phenomenal job making our home fit in, while maintaining a beautiful uniqueness about it.

He answered any questions we had (and there were a lot!) and offered valuable and candid feedback based on his years of experience, which we appreciated.

His crew was very friendly, and the construction site was always clean and tidy. His son, Noah is learning the business. And if Derek wasn’t on site overseeing things, Noah (who is very polite and personable) would often be there. The quality of their work is exceptional.

It didn’t hurt that their family has a ridiculously goofy and adorable “job dog” named Vito that sometimes accompanied them.

In all seriousness, the thing we appreciated most about Derek was the pride he takes in his work, and his attention to detail. If things weren’t going as planned (as was expected by us during the build) or needed adjustments (mostly because I’m pretty particular), he was on top of it. We asked for a couple of features that were new to Derek (a heated driveway for example) and he embraced the idea of learning something different. Based on his quality of work and high expectations of his subcontractors, we were confident with how things would turn out in spite of the lack of experience with those particular things.

He came up with small, thoughtful ways to make our home even better and more aesthetically pleasing than we imagined.

It took several months to construct, and the time and care was well worth the wait. We weren’t interested in getting into a cookie-cutter home as quickly as possible, we were interested in having a fully custom, well-built home. That was what was promised, and that was what was delivered.

We finished up most things this fall, and some things weren’t quite to his standards, (the lawn didn’t come in well due to it being later in the season, for example) but Derek assured us he’ll come back in the spring and make sure we’re happy with the end result. We love that he cares enough to have everything be just right.

It was so exciting to watch our dream home come together step-by-step. We are settled in and couldn’t be happier. We would recommend AlphaCon wholeheartedly to anyone, and without hesitation.

Michael Ziakas
May 12, 2023

Derek and his team did a great job with building us an in-law and 3 car garage. We then had him do our roof and siding and will continue using him for everything else! Highly recommend. On time and budget.

Mandy Powers
Apr 6, 2023

We have hired AlphaCon several times over the last couple years to rebuild our front porch, replace our front door and a few windows. Derek and his son did a very nice job with the design and construction of the build. While we were still in the midst of supply chain delays at the time of construction, Derek ensured that we had everything we needed in a timely manner to get the job completed. The subcontractor he hired for the mason work was top notch as well. Derek and his son took pride in keeping our yard and the construction area clean while working and made sure to leave everything in better condition than when they began. During the replacement of a window, Derek noticed some potential pest issues and notified me at once. Everything was taken care of and he continued his work. I was very appreciative that he was professional enough to make me aware of this problem that I never would have known had he not said anything. We are very happy with the work that he and his son did! I wouldn't hesitate to call AlphaCon back for some other projects we'll have in the future. He certainly does quality work and his son is following in his footsteps. Thank you!

Lindy Keighley
Apr 6, 2023

We've used AlphaCon for multiple projects both inside and out. Derek and his crew are friendly, professional and do beautiful work! We've never any issues and will continue using their services as we remodel/add to our home. If you're looking for reliable, quality service, we highly recommend AlphaCon Building Group - you will not be disappointed!

Nicole Fournier
Mar 16, 2023

We hired Derek of Alphacon LLC to do a rather emotional complete remodel of my husband's late grandparents home, now ours. When meeting with various contractors, it was extremely important that the reno would be done in a respectful manner & also that our vision was understood clearly as we would be living 80+ miles from the house & not there to check in daily.

To say our vision was brought to life is an understatement. Derek was extremely easy to communicate with throughout the entire process. The work ethic of him and his crew, incredible! We did not experience any delays as they worked around the Thanksgiving and Christmas holidays. In fact, they finished early!

We are so happy with our new home have received MANY complimentson the quality of his work. We will definitely be calling Derek first for any future projects!

Affordable Cabinet Solutions
Jan 3, 2023

AlphaCon, LLC Contracting has worked with my business Affordable Cabinet Solutions on several renovation projects this past year. Derek is excellent at communicating and project management and has proven to be a fantastic industry partner.

By having the same high level work ethic, follow through and workmanship each and every one of our collaborated projects was seamless and I can't thank them enough.

I can confidently recommend Derek and AlphaCon as a great company to work alongside with both personally and professionally.

Joe Semaan
Feb 7, 2019

20 years ago when I was 13 Derek built my parents their dream home. Fast forward 2 decades and he just completed building my wife and I’s dream home. Maybe I’m bias but I genuinely believe he built us the most gorgeous house I’ve ever seen. Through the entire process Derek worked with us and made sure everything was done to our complete satisfaction. He also didn’t hesitate to pass on any and all deals my way and not squeeze out every possible dollar. We had a pretty unforgiving winter during the process and he made sure things were rolling around smoothly to meet every one of our deadlines. I recommend him enough because the work he does is excellent. Fee free to private message me for more information or pics.

Paul Keeley
Jan 24, 2019

Alphacon did an amazing job on building my new deck. Very professional and would use them for any home improvement work again!

Jim Graves
Jan 23, 2019

Derek and his crew were terrific. Their workmanship was outstanding. His crew, talented and friendly. We couln't have been more pleased with this company. And the price? We were more than happy with the value. He's the first person I'm going to call for our next project!!!

Jessica
Jan 22, 2019

We have used Alphacon, LLC for several contracting jobs in our business and our home. Derek is always professional and work was always completed in a timely manor. His work ethic is top notch. I refer him to anyone that I know needs and is looking for a quality contractor.

Stephen Fournier
Jan 22, 2019

We contracted with Derek and Alphacon to have our basement finished. We elected to get 5 different estimates and not only did the Alphacon estimate come in a timely and detailed manner compared to the others, the estimate was fair and included all the necessary work at a fair price, especially compared to some of the other estimates (some of which were anywhere from $9,000 to $17,000 higher).

As far as the work, I cannot say enough. Derek laid out the process and the timeline of the work and stuck to it every step of the way, even finishing up a few days early. It is refreshing to have a contractor actually do what they say and show up when they are supposed to and provide quality work and do whatever it takes to get the job done.

Once friends saw the quality of work that was completed in the given timeframe, they have asked for his contact information and I do believe that Derek and Alphacon will be getting some additional business in the near future because of our basement project. 1/21/19

Jillian S
Apr 17, 2016

Most UNPROFESSIONAL and inappropriate company. Derek (business owner) did not show up within roughly 15-20 mins of SCHEDULED meeting time. Therefore, I sent message to call off estimate to reschedule, assuming it was a no call no show. Derek (business owner) says "on my way" and shows up regardless, now close to 20 mins after our appointment. With no one now being home to answer the door, he calls up and sends HARASSING and INSULTING text messages, which are all documented. Upset that because we called off the meeting due to his excessive tardiness (which he did not communicate in advance) he has missed some of his personal time and threatened he was going to "swing by again to see if I live there" ?
I've now had to get the police, state of NH, and BBB involved to document this incident, as this contractor has turned a simple estimate job opportunity for himself to a harassing and threatening situation.
Please be careful of this company and Derek and do not make the mistake of having them over for am estimate like I did.

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  • 34 Bush Hill Rd, Hudson, NH 03051
  • Industrial Roofing
  • Locally Owned & Operated
  • Warranties Offered
  • Metal Roof
  • Green Roof
Hours
Mon7:30 AM - 9:00 PM
Tue7:30 AM - 9:00 PM
Wed7:30 AM - 9:00 PM
Thu7:30 AM - 9:00 PM
Fri7:30 AM - 9:00 PM
Sat7:30 AM - 9:00 PM
Sun7:30 AM - 9:00 PM

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