CalRATERS Energy Solutions [HERS Testing & Energy Audits]

CalRATERS Energy Solutions is an energy advisory service based in San Ramon, California, serving homeowners and contractors throughout the Bay Area. With a 4.7-star rating from 24 reviews, the company has been making homes more energy efficient since 2015. The team specializes in Energy Code Compliance (ECC) testing, formerly known as HERS testing, and comprehensive home energy audits that help clients meet California's Title 24 requirements while identifying opportunities to reduce energy costs and improve home comfort.

What distinguishes CalRATERS is their focus on two core energy services: ECC testing for compliance verification and detailed energy audits for performance improvement. The company promises ECC certificates delivered within 24 hours, helping keep construction and renovation projects on schedule. Their Advanced Home Energy Audit evaluates how a home uses and loses energy, providing homeowners with clear guidance on upgrades that enhance safety, comfort, and efficiency. This specialization allows the team to deliver precise diagnostics and inspection-ready documentation without attempting to be all things to all customers.

Reviewers consistently praise specific team members who handled their projects. Abdul earned commendation for being timely, friendly, and thorough while explaining the process throughout. Jon received multiple mentions for his professionalism, friendliness, and punctual arrival, with one reviewer noting he arrived five minutes early and explained everything as he went. Another reviewer described the team as handling permit pulling, inspection scheduling, and HERS testing seamlessly, calling them a one-stop shop for both companies and homeowners.