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

"Would highly recommend Jason and Blue Mountain. We recently used him for a master bedroom and bathroom remodel as well as renovations to our screened in porch. Jason was responsive and communicated with us every step of the way. He met the timeline and deadlines that were set for our projects. Jason and his skilled employees were friendly, courteous and a pleasure to have in our home. Their work was meticulous and they cleaned up every day before leaving our home. We are thrilled with our upgrades and have future projects planned with Jason and Blue Mountain Building."

"It went very well. Matt and his crew were great and I love my new kitchen! They are very professional and knowledgeable in their trade. I will be reaching out to MP Services again for another project in the future."

"Carlito and his team built a beautiful deck for us, no hidden costs, great setup and cleanup"

"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. "

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.