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Multifamily and Commercial Services

High-Performance and Green Building Certifications

Our team of green building experts provides consultations, inspections, testing, and third party verification for multifamily and commercial green building certification programs. 

Energy Star Homes

To earn ENERGY STAR certification, a new home or apartment must meet strict energy efficiency requirements established by the ENERGY STAR Residential New Construction program.


HERS Rating

The Home Energy Rating System (HERS) Index is the industry standard by which a home’s energy efficiency is measured. It is also the nationally recognized system for inspecting and calculating a home’s energy performance. A certified Home Energy Rater assesses the energy efficiency of a home, assigning it a relative performance score. The lower the number, the more energy efficient the home. 

Enterprise Green Communities

Enterprise Green Communities is the nation’s only national green building program designed explicitly for green affordable housing construction. All projects seeking Green Communities Certification must meet mandatory criteria.

NGBS Green Certification

The National Green Building Standard (NGBS) is the first residential green building rating system to be approved by the ANSI as an American National Standard. NGBS Green Certification verifies that a home, building, or land development is designed and built to achieve high performance in six key areas: Site Design, Resource Efficiency, Water Efficiency, Energy Efficiency, Indoor Environmental Quality, and Building Operation & Maintenance.

LEED for Homes

LEED (Leadership in Energy and Environmental Design) is the most widely used green building rating system in the world. Available for virtually all building types, LEED provides a framework for healthy, highly efficient, and cost-saving green buildings. LEED certification is a globally recognized symbol of sustainability achievement and leadership.


Michelle Foster

Vice President, Sustainability
Home Innovation Research Labs

"Energy Diagnostics has had a team of NGBS Green Accredited Verifiers since 2008 when the NGBS Green building certification, based on the National Green Building Standard ICC/ASHRAE-700, first launched. Over the past ten years, Energy Diagnostics has become one of our highest volume and most experienced verifying companies in the country. Energy Diagnostics has experience verifying land developments, new single-family homes, and new multifamily buildings. Their team members are also among the most expert NGBS Green Verifiers for renovated and adaptive reuse multifamily buildings. Few verifiers have the depth of experience across all building types and NGBS versions over the years."