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A complete rebuild of a Stonington cottage's second floor, with a full bathroom and laundry added, took less than 3 months, a 2025 customer said, and the family had the cottage back before Memorial Day with several weeks to spare. That 2025 customer said Dan was exact about when things would happen and how much they would cost, from the permitting process to final inspection, and that the job stayed on schedule and within budget. Constanza & Company describes itself as a general contractor building homes for over a decade on the Connecticut coastline, restoring historical homes, building new custom homes and doing remodels. Its site names Stonington, Niantic, Essex and Old Saybrook as its service area. Its Connecticut home improvement contractor registration, number HIC.0660456, is active on the state registry under CONSTANZA & COMPANY LLC. It holds a 5-star Google rating from 8 ratings. A 2025 customer described working with Dan to completely renovate a 1920s cottage in Stonington, and said he explained all the steps along the way so decisions fit the budget. A 2025 customer said Dan and his team updated a Stonington beach house with new siding, a roof, extensive foundational work and a more practical use of space for the lower level, and that Dan took care of hiring the landscapers and window treatment company. A 2023 customer who had worked with Dan and his crew many times described an addition with a handicap-accessible master bedroom and bathroom and a library with floor-to-ceiling built-in bookshelves. That 2023 customer said Dan suggested leaving some finishing touches on an upstairs bathroom repair until they were back for the addition, as the more cost-effective route. A 2023 customer said the work on a newly bought weekend home was on time, that Dan even came on a weekend when something could not be figured out, and that Aschly gave interior design advice on colors and ideas. A 2023 customer said Dan and Ashly first did a complex addition at an office building, later added a conference room and foyer there, and then added a large living room and sun room wing to the customer's home in Willington along with a full renovation of the existing structure.
I had a wonderful experience working with Dan to completely renovate my 1920s cottage in Stonington. The project went very smoothly and moved along quickly. Dan was on top of everything and the quality of work is excellent. He explained all the steps along way so I was able to make decisions that worked best for my budget as well as for my vision of the finished cottage. I am just thrilled with the finished product!
Dan and his team did an incredible job with the renovation of our cottage in Stonington. Where other contractors said it couldn’t be done, Dan and crew made it look easy. From the permitting process to final inspection, Dan was exact with when things would happen and how much it would cost. We stayed on schedule and within budget. This was a major renovation- a complete rebuild of our second floor, adding a full bathroom, laundry, plus some edits to the first floor and basement. The work took less than 3 months. No one believed we would have our cottage back before Memorial Day, but we did with several weeks to spare. Thank you, Dan and team, for your professionalism and hard work! We love the result!
Dan and his team worked on updating our Stonington beach house this Autumn and did an absolutely wonderful job! The project consisted of new siding, roof, extensive foundational work and creating a beautiful and much more practical use of space for our lower level. He is professional, knowledgable, upfront about realistic goals but went above and beyond even when I thought a request may be out of reach. His team was incredibly hard working and efficient. I also loved that Dan took care of hiring the landscapers and window treatment company so I didn't have to do the research to find a good fit. They were great as well. I have nothing but positive things to say about Dan, Aschly and company and would recommend them any day!
Very satisfied with Dan and the Constanza team. My son and I worked with Dan from planning to final build. He’s a good communicator and gives great advise and suggestions every step of the way. I was particularly impressed with his attention to detail and commitment to quality. I highly recommend Dan and the team, you won’t regret it !
I will start off with if you need a contractor, forget the others and work with Dan and Aschly, you will know why I say this after a day or two working with them. Working with Dan has been incredible. I found the perfect weekend home in May and closed shortly thereafter and was introduced to Dan the day after closing. I wanted to be able to enjoy part of the summer and had a fair amount of work to be done. Everyone warned me that I was being too ambitious and that I should expect the contractor to drop the ball at some point. Well, I am happy to say that their work was on time, impeccable and of the highest quality (no shortcuts to speed it along) and Dan's attention to his customers goes beyond what I have ever experienced (I was in real estate for 20 years). The work days were thoroughly planned out and presented to me and Dan always made himself available for any questions. If there was need for immediate attention, he was on it and even came on a weekend when we couldn't figure something out. In addition, Aschly provided excellent and well needed design advice for the interior when it came to colors and ideas. On top of all of this, they are just really nice people too, which only elevates the experience. I highly recommend them and wish I could get them to work in NYC at my home as well. Friends and neighbors who have visited and saw the house before were all stunned at how beautiful the work was and that it was done so efficiently. I will use them for all future work as well.
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1 change recorded — last scanned Oct 30, 2026.
Typical Connecticut range for this kind of work, from regional averages — not a quote from Constanza & Company. Use it to sanity-check bids, then get the real number in writing.
Estimated range
$21,600 – $32,900
Typical remodeling project around $27,300
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