About Us

Construction SERVICES Group

Who Are We?

Construction Services Group (CSG) is a specialized consulting firm focused exclusively on the exterior building envelope, providing a blend of technical design expertise, forensic insight, and construction‑phase quality assurance. Led by credentialed Registered Roof Consultants (RRC) and Registered Roof Observers (RRO), our practice is built around delivering high‑fidelity, field‑informed solutions that enhance durability, performance, and long‑term value across a wide range of project types.

We support A/E firms, government agencies, general contractors, and private owners by integrating building‑science principles with practical constructability and code‑driven requirements. Our team develops roofing and building‑enclosure design packages, technical details, and specification sets that align with manufacturer requirements, industry standards, and jurisdictional codes. As RRCs, we bring deep expertise in system selection, moisture management, drainage strategy, and performance‑based design for low‑slope and steep‑slope assemblies.

During construction, our RRO‑led quality‑assurance observation ensures that design intent is executed with precision. We provide systematic field documentation, progress verification, and compliance assessments that reduce risk, prevent installation defects, and support owners, A/E teams, and contractors with clear, actionable reporting. Our QA/QC approach is rooted in ASTM, NRCA, IIBEC, and manufacturer standards, ensuring that every observation is technically defensible and aligned with industry best practices.

CSG routinely collaborates with licensed Professional Engineers to provide structural review, wind‑uplift analysis, drainage calculations, and other engineering services required for complete

building‑enclosure design packages. This integrated model allows us to deliver comprehensive, code‑compliant solutions while maintaining discipline‑specific expertise and responsible‑charge requirements.

Whether supporting a Prime A/E on a federal MATOC, assisting a general contractor with constructability and QA, or guiding private owners through complex building‑enclosure challenges, CSG delivers clear, reliable, and technically rigorous consulting services that strengthen project outcomes from concept through closeout.