Get matched with top addition to existing structure builders in Hanover, PA

"Kris was amazing to work with. He is a true craftsman with many skills to tackle any job. I would highly recommend him."

"We added a full bathroom in our garage and an additional 16 ft wall with an interior door. The project went well and we’re very happy with the work that was completed. Bob is an amazing person to work with as is his wife Laura. They made the process easy from planning & permitting, to choosing the right materials and layout. Everything went as expected. Bob went above and beyond to insure the job was completed on time as we had a specific timeframe that we needed the job to be completed. We would hire Bob again for another project in the future. Thanks so much Bob!"

"So happy to have my gorgeous, new sunroom, the space is so peaceful! Carlito was very attentive and professional throughout the project and was able to help bring this vision to life. Thank you!"

"The pro was very communicative, able to adapt to my schedule and provided the exact work requested in a timely professional manner. It was very humid the day of install and they made a return trip to make sure everything dried and sealed appropriately."

At Millstone Design & Building, we believe that exceptional spaces begin with exceptional craftsmanship. Every project we take on is guided by a commitment to quality, precision, and thoughtful design. Our team approaches each build with the same care and attention that master craftsmen have valued for generations—ensuring that every detail, from the foundation to the finishing touches, reflects durability, beauty, and purpose.\n\nWe work closely with our clients to understand their vision and bring it to life through skilled workmanship, honest communication, and dependable service. Whether we are designing a new space or refining an existing one, our goal is always the same: to deliver results that stand the test of time and represent the highest standards of our trade.\n\nAt Millstone Design & Building, we don’t just construct buildings—we craft spaces that are built with integrity, built with care, and built to last.

"Nate and Junior did a wonderful job and charged a fair price.. They installed three sheets of drywall and repaired existing drywall in a small powder room. The work was performed quickly with virtually no dust or extra joint compound created when finishing the joints. It took awhile to get the work scheduled mostly due to Covid-19 but it was well work the wait. I would recommend this firm for drywall installation/repair."

"Yaniel's Renovation LLC completed remodeling work, including putting in hardwood floors, installing cabinets, vanities, and doors, and interior painting. Francisco and his team worked to ensure that the home improvements were to my liking and that they were suitable down to the very last detail. They remodeled with an eye towards the future maintenance of my home. Rosa was immensely responsive. I am very pleased with the results."

"It took a few tries to get Dean out due to running long on a prior job, once he did make it, we spent an hour making a list, taking measurements, recommending additional things that should be done. He said he'd try to get the estimate done in 48 hours. That was the last we heard so we hired another company. I don't know what the disconnect was- the office staff is lovely on the phone, Dean was very personable, seemed very capable. We just fell through the cracks of being busy i guess."

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everything went well all people were professional and on time. everything looks great, Lee runs a tight ship .Takes pride in his work.

you cannot do better

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"They did a fantastic job and were very well priced. I have hired them to do several projects at my house and will definitely use them again if additional projects arise. Would definitely recommend them!"