HERS Rater

C2S Energy LLC is a full-service Mass Save® contractor headquartered in New Bedford, Massachusetts, serving homeowners, builders, developers, and multifamily property owners across Massachusetts and Rhode Island. The company manages the entire energy efficiency process in-house, including no-cost energy inspections, HERS ratings, insulation, weatherization, air source heat pump installation, mold remediation, and energy code compliance. C2S Energy specializes in helping customers access all available Mass Save® rebates, such as no-cost weatherization, mini split upgrades, and heat pump incentives up to $16,000.

With a focus on practical, hands‑on solutions and end-to-end installation services, the team supports clients from initial assessment through project completion. This environment offers energy professionals the opportunity to work directly with customers and make tangible improvements to comfort and efficiency in residential and multifamily properties.

The HERS Rater is a full-time, on-site role based in New Bedford, MA. This role is responsible for performing residential energy inspections, conducting HERS ratings, and verifying compliance with energy codes and program standards. Day-to-day tasks include visiting job sites, collecting field data, conducting blower door and duct leakage tests, documenting findings, and preparing detailed rating reports. The HERS Rater collaborates with homeowners, builders, and internal installation teams to recommend insulation, weatherization, and HVAC efficiency upgrades that align with Mass Save® and other incentive programs.

Responsibilities also include maintaining accurate records, using specialized software to model energy performance, ensuring adherence to safety protocols, and supporting customers in maximizing available rebates and incentives.

• Background in residential energy efficiency, building science, or construction, with the ability to understand building envelopes, HVAC systems, and insulation practices.
• Experience performing field inspections, using diagnostic tools (e.g., blower door, duct testing equipment), and accurately collecting and recording site data.
• Proficiency with HERS rating or similar energy modeling software, and the ability to interpret and prepare energy reports for code compliance and rebate programs.
• Strong communication and customer service skills to explain findings, recommend improvements, and work collaboratively with homeowners, builders, and internal teams.
• High attention to detail, organized work habits, and the ability to manage multiple projects and site visits in a fast‑paced environment.
• Valid driver’s license and reliable transportation for regular travel to job sites in Massachusetts and Rhode Island.
• Certified HERS Rater credential (or willingness to obtain certification), and prior experience with Mass Save® or similar utility incentive programs is highly beneficial.
• Comfort with on‑site work, including climbing ladders, accessing attics and basements, and performing inspections in varied