Last updated October 27, 2026. “Mass Save certified” isn’t a personal license. It means a contracting company has joined the Mass Save Heat Pump Installer Network (HPIN), the list of contractors whose installs qualify customers for Mass Save heat pump rebates. Here’s how it works, and what it means if you’re a tech looking for work.
What a company needs to join
According to Mass Save’s installer page, a contractor applying to the network submits:
- A signed participation agreement and a W-9;
- A valid Massachusetts license relevant to the work (HVAC/refrigeration, electrical or plumbing);
- Proof of general liability insurance;
- Proof of training: for air-source and VRF systems, EPA Section 608 certification plus manufacturer heat pump training; for ground-source systems, IGSHPA Accredited Installer or GeoExchange Designer certification.
Training required in the first year
Residential air-source installers are expected to complete manufacturer cold-climate sizing and design training, plus assigned courses in the free Mass Save Heating & Cooling Learning Center, including Residential Heat Pump Program Basics, Weatherization 101 and Integrated Controls 101.
What it means for you as a technician
- You don’t apply personally. Your employer holds network status, but the employer needs techs who can produce installs that pass Mass Save quality checks, so the training above is a selling point on your résumé.
- Get EPA 608 first. It’s the baseline for every refrigerant-handling role on this board.
- Free entry-level training exists. Boston-area programs (for example JVS Boston with Franklin Cummings Tech) offer free heat pump basics courses that include EPA 608.
Sources: Mass Save — Heat Pump Installers; Mass Save — Heat Pump Installer Training; Mass Save Heating & Cooling Learning Center; JVS Boston heat pump program. Program rules change; confirm current requirements with Mass Save before applying.