"Evolution design worked with me on designing and addition for a 100 and 5 year old house. We worked on the dimensions of the addition Plus the materials. Evolution understood the local zoning which was amazing that they knew that. We have not started construction. And evolution can help pull the permits and I'm considering them for that as well. All in all it was a long project but it was done efficiently, working with several of the staff an the departments."
Were 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!
"It went well. I was pleased with the services that they provided and the plan that they came up with. I had no trouble submitting it to the city in order to obtain a permit. They were easy to work with, even coming out on Saturday or Sunday, or the evenings - whatever worked with my schedule. They are really friendly, helpful and easy to get along with. It was a great experience and I plan to go to them for some additional work that I am planning on doing."
"Commonwealth Contractors, LLC is assisting me in starting up a large home addition, as well as some other work that I am looking to have done on my house. We are working close together to get through a short punchlist that I have put together. They have been a great help so far with everything."
"Contacted me immediately and was very knowledgeable in their field. I was looking for a company that had an engineer available and could install the support beams as well."
"I was really under the gun due to a prior Architectural firm not performing their duties per building plan codes. Not only were the plans incomplete but the City Plan Reviewer states(The Worst plans he’s ever seen) they will not make adjustments unless there is an additional charge for Thousands.
Evaluation’s saved my clients and drew our project per code, along with Engineering in less time then they quoted. I highly recommended them, Especially Kirsten. You went above and beyond trying to coordinate this project. The staff was very professional and I will use them on all my projects.
Sincerely,
Frank B
BCM Builders"
Slate Drafting specializes in providing high-quality, affordable house plans for real estate investors and homeowners. With a background in civil engineering and real estate investing, the founder brings practical insight to drafting services, offering a range of designs that combine technical precision with real-world functionality. Whether you're looking to build your dream home or invest in real estate, Slate Drafting is dedicated to making your vision a reality without breaking the bank.
Our sustainable architectural services support clients that are moved by their physical and emotional surroundings and seek affordable and honest expressions of their needs. The design process seeks to push the envelope of enclosure using the tools of practical forces to create aesthetic solutions suitable for today and tomorrow's inhabitants. Each project seeks dynamic interaction with its surroundings while expressing the integrity of its construction and materials. Generally, we strive to create simple, well-articulated forms that have an enduring meaning with materials that provide lasting value and low maintenance. Each integrated, holistic design solution seeks to unify the design interests of the client to find the sweetness of life merged with their changing lifestyle.\n\n We explore together spatial alignments that benefit from established site views and provide designs that benefit from natural day lighting, natural ventilation, grid-tied solar energy, geothermal heating or cooling systems and reuse of stored grey water for site irrigation. In this context, each project compliments the surrounding community's built expressions and adapts to the technological advances that are leading our culture towards an electronically connected network of balanced living and working conditions for family growth.\n\nOn this Web site you will discover innovative designed homes of remarkable strength, economy, and beauty, brought to life by a distinct architecture combined with a source of pollution-free energy. Each built-in biosphere, in gradual but constant motion, draws energy from the sun, and /or geothermal stability from the ground, creating a temperate climate that supports the primary living spaces. These holistic design expressions below represent some of the project solutions for our clients.\n\n
We are a multidisciplinary engineering and design company providing complete architectural, structural, MEP, and civil engineering services across the United States. Our company includes licensed professionals experienced in residential, commercial, and industrial projects ? from concept and planning to fully permitted construction documents.\n\nWe prioritize code-compliant, buildable, and cost-efficient solutions, tailored to each state?s local requirements, AHJ standards, and construction practices. Whether supporting homeowners, contractors, developers, or architects, we deliver accurate plans, responsive communication, and seamless coordination across disciplines.\n\nOur Commitment\nReliable documentation, fast turnaround, remote-friendly collaboration, and high-quality engineering you can build with confidence.
Structural Engineering questions, answered by experts
By careful planning and reinforcement to maintain structural integrity.
The average cost to hire a structural engineer is about $550, with prices generally ranging from $200 to $1,500. Structural engineers may charge a flat rate, by the project, by square footage, or an hourly rate, which is typically between $100 and $250. Many jobs, such as inspections and structural calculations, are billed at a flat rate, which often falls between $300 and $800. The final cost depends on several factors, including the project's type, scope, size, complexity, ease of access for inspection, and your geographic location.
Cathedral ceilings make a statement in your home, but at the cost of your attic space. Normal attics are wide open, which allows warm air to move around and exit your home. Because of this, cathedral ceilings make your home less energy efficient and put your ceiling at risk of venting issues if you’re not careful. They also reduce your attic storage space, potentially cause an echo, and even make it harder to change a light bulb.
The depth of any foundation style depends on your climate and how deep the frost line is, as building code requires that the footers of a foundation—which are built into a monolithic slab—sit at least a foot below the frost line. At the southern tip of Florida, for example, a monolithic slab foundation would only need to sit 12 inches under the soil at the widest parts. On some parts of the Canadian border, the frost line is 100 inches, which would mean a minimum of 112 inches, which is prohibitively deep for a monolithic slab.
The primary reason homes have crawl spaces is so the foundation can reach down below the frost line to avoid dangerous soil movement and structural damage when the ground freezes. They’re more popular in colder climates where the ground freezes down to a few feet, and slabs are most popular in warmer areas where there is no frost line. Crawl spaces also provide a space for utility lines to run where they’re at less of a risk of freezing.
The Drakes Branch, VA homeowners’ guide to structural engineering services
From average costs to expert advice, get all the answers you need to get your job done.
The cost of a structural engineer is easily justifiable given the value they bring to the table. Use this guide to see what hiring your professional will total.
It can be hard to choose the right pro for any job, but it matters. Learn how to hire a structural engineer who'll get the job done right from start to finish.
