"Pedro is a very professional Structural Engineer. Very knowledgeable."

"Jeremy was great to work with and very detailed and professional with his review of my homeâ s structure as well as the report he provided. Based on his findings I did have work done on my 62 year old home foundation to hopefully insure I get another 62. Thank you Jeremy!"

"Mr. Castillo-Navia fulfilled all items in our wish list and designed a practical and beautiful home for our family! I hope this is our forever home but my wife and I would definitely look him up again if we need a different house when we eventually become empty nesters. He is professional and detail-oriented. CASNA Design even covered the structural engineering process. He answered immediately, is knowledgeable and passionate about his work, transparent in pricing, answered all of our questions and is very punctual. Mr. Castillo-Navia took the time to listen to what we wanted and made sure to incorporate that into our designs. We had the best experience. He was friendly, professional and we love the design he came up with. From the initial meeting to the final meeting everything went smoothly. He is very knowledgeable and a great listener. He also made himself available for follow-up questions from potential contractors and helped us compare bids. Working with CASNA Design was money well spent and we highly recommend him."

"Bryan was extremely knowledgeable and prompt. I would recommend him to anyone who needs some engineering done."

"Hired A+ after considering several other drafters. After they were complete, we paid an licensed NC Professional Engineer to review the plans. The engineer complimented A+'s work and said he was a 'smart guy'. Nearly everything in the plans was spot on. They worked quickly, communicated and worked well by email, very responsive. Will hire again and recommend. Thank you..."

"Tim was very professional, he was prompt in responding to messages. He showed up on the time for structural inspection and did thorough inspection. I highly recommend him considering my earlier experiences with other structural engineers, how they carry out their inspections and never give any definitive answers."

I am a licensed Professional Engineer providing structural engineering services for residential and small commercial projects. I work with homeowners, contractors, and design professionals to help move projects through the permit process by providing structural calculations, drawings, evaluations, and engineering letters as needed.\n\nIn-person structural inspections are available in Maryland, DC, and Northern Virginia. Remote structural consulting is available in Delaware and North Carolina.\n\nTypical projects include load-bearing wall removal, beam and header sizing, additions, decks, foundation concerns, and framing evaluations. My goal is to provide practical, code-compliant structural solutions that are clear, efficient, and tailored to the project.

"I hired them to create plans for an apartment building. The process was quick and painless. Cost was good. The plans are full complete abd ready to take to builders for quotes. I will definitly use them again."

We’re a family owned and operated company that values honesty and integrity, and stands behind our work. We offer over 40 years of industry experience. We specialize in Asphalt Shingle Roofing installation, replacement, and repairs. Our services are customized to the individual project, paying close attention to the details of each project that we're involved with. We look forward to building long-term relationships with our clients and guarantee your satisfaction!

Hi, I am Alison, owner of AJ Plans + Designs! I am so glad you are here. I provide custom home floor plans, residential drafting services, permit-ready construction drawings, space planning, remodel layouts, and 3D home models. Serving homeowners, contractors, and builders, I strive to create thoughtful, functional designs that turn ideas into reality. Whether you're building a new home, planning an addition, or remodeling an existing space, I deliver personalized design solutions with attention to detail and exceptional customer service.