Existing Construction

Enjoy the best design and function combined together

Design and preparation of Construction Plans and Specifications for existing construction.

What We Deliver

At Carlson, we provide expert design and construction plans with detailed specifications tailored to your unique structural and restoration needs. Serving property owners, developers, and design professionals, our services ensure every phase of your project—from assessment to execution—is built on clarity, compliance, and performance.

Our team develops detailed plans and technical specifications that align with project goals, applicable building codes, and structural performance requirements. Whether you’re repairing, restoring, or rehabilitating a structure, our documentation supports accurate bids, smooth project execution, and long-term durability.

Our Design & Specification Services Include:

  • Structural Repairs & Modifications
    Including FRP (Fiber Reinforced Polymer) design for strengthening existing structures.
  • Waterproofing & Weather Barrier Design
    Comprehensive systems tailored for below-grade, plaza-level, and façade conditions.
  • Façade & Curtainwall Restoration
    Detailed design documentation for safe, code-compliant repairs and replacements.
  • Concrete & Masonry Restoration
    Plans that address deterioration, rebar exposure, and structural distress.
  • Parking Garage & Balcony Repairs
    Targeted solutions for restoring integrity and safety to multi-use structures.
  • Historic Property Rehabilitation
    Sensitive restoration plans respecting the original architecture and materials.
  • Expansion Joint & Sealant Replacement
    Long-lasting detailing that accounts for movement, weather exposure, and compatibility.
  • Plaza Reconstruction
    Waterproofing replacement and structural detailing to support high-traffic areas.

Why Choose Carlson Structural Engineers?

Carlson structural engineering

The Secret of Success

We bring decades of field experience, multidisciplinary coordination, and a deep understanding of materials and systems. Our construction documents are clear, code-compliant, and practical—empowering contractors to build efficiently and owners to invest confidently.

Commercial Real Estate
Healthcare & Institutional Facilities
Multi-Family & High-Rise Residential
Government & Historic Buildings
Parking Structures & Transit Facilities
apartment structural engineering carlson

Start Your Project with Confidence

Looking to develop or update construction plans and specifications? Contact Carlson today to learn how we can help bring your structural vision to life—securely, efficiently, and to the highest standards.