Get matched with top treehouse builders in Codorus, PA

"I am so delighted with the work that Jose and Jesse did in my home today. Jose was very prompt with phone calls and scheduling the visit. They are very respectful, understand how to fix things properly (they fixed things that others have worked on), clean up after themselves, and are just such wonderful gentlemen. I have plenty more for them to do! You will be very pleased with the quality of services and respect received."

"I would give my experience with Seven Valleys Custom LLC a big A +. Not only did he do great custom work, he was always reliable. I would highly recommend him to anyone"

"Would have liked landing and steps a few inches wider I can’t change my storm door now. But I didn’t see that until done. Nice solid steps. Much easier entry. Thank you. Merry Christmas. Peace."

"I have used an architect in the past for major renovations at my house. Unfortunately, he passed away so I needed to find a new one for the extensive renovations that I want to do at my rental house. I contacted five architects, all of whom were not interested -- probably because one phase of the project involved expanding the basement. All said that it would be a very expensive and difficult venture. When I told the last architect that I spoke to that I had sketched plans of what I envisioned for my project, his response was that I didn’t need an architect; I needed a designer/draftsman. My search led me to Gary at Kapital Drafting. His background in construction is an asset. He visited the property to talk to us about our vision. In our discussion, Gary suggested instead of expanding the basement that we enclose the patio and create a screened porch and then build a bedroom above. His suggestion took us in a completely different direction and no doubt saved me a lot of money in the long run and with a much better outcome than my original plan. The process went quickly (about 8 weeks) and smoothly. We had two Zoom meetings where Gary presented us with his drawings. He made the changes we suggested in real-time. It was so much fun to watch him make the changes right in front of us. Gary was very responsive to all my calls and emails. He listened to what we wanted and he made it happen. Gary is well organized and he is very detail-oriented. His fees were very reasonable. We paid about one-eighth the amount that one architect had quoted. It was a seamless process from start to finish. I highly recommend Gary and his company, Kapital Drafting."

"Hired them for spring clean up, mulch and to mow for the season on a Friday. They came Monday did a great job! Lawn looks great! Highly recommend."

"The assembly service went well. He was on time, very professional, and he completed the work efficiently. Overall, I would definitely use his services again."

"Great service. Zac was our point of contact in the beginning Then Margret did the drawings. The whole team was great. I loved working with them and will surly will work with them again. Our house was only around 1700 square feet under roof, and will look forward to the next house we do."

"Found Sentri on Angi. Jeanette and Violet were very pleasant and efficient in getting a contractor to me in the time frame needed. The contractor was excellent and the roof looks great! I would definitely work with them again if I had additional projects."

With 30 plus years in all aspects of home repair and construction we can handle any project, nothing is too big or too small. Dedicated to quality craftsmanship and customer satisfaction we are not satisfied until you are. Based in Mechanicsburg and serving the capital region you can count on us to complete your project to the highest standards. We can also provide consulting and guidance for any concern.

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.