# J and L Energy

**Trade:** Insulation & Weatherization · **Address:** 42 Sargent Street, Winthrop, MA · **Phone:** (781) 428-3388 · **Website:** https://jandlenergyinc.com/ · **Languages:** English

**Rating: 3.5/5** (low confidence) — from 0 reviews across 3 sources.

## The honest read

J and L Energy is a Winthrop-based energy-efficiency contractor built around the state's Mass Save program — the company's own site lists insulation, air sealing, heat pumps and mini-splits, thermostats, windows and roofing as its work, and it describes itself as a Mass Save partner.

A 2024 feature on Westwood Living introduced owner Michael Greene and the company to readers ahead of the winter heating season, framing the pitch around lower energy bills and a more efficient home — a promotional piece rather than a customer account, but it puts a name to who runs the business.

Worth confirming directly: what Mass Save incentives or rebates currently apply to your specific job, since program terms change.

**Strengths:**
- Mass Save partner — offers rebates via the state program
- Broad energy scope — insulation, heat pumps, windows and roofing

## Claims & citations

Every claim below is backed by real evidence rows — uncited claims are dropped in code before publication.

- Insulation, air sealing, heat pumps/mini-splits, thermostats, windows and roofing via Mass Save _(confidence: medium)_
  - [Official Website](https://jandlenergyinc.com) — “A Massachusetts energy-efficiency contractor that does Mass Save program work — insulation, air sealing, heat pumps and mini-splits, thermos…”
- States a Mass Save® partner affiliation _(confidence: medium)_
  - [Official Website](https://jandlenergyinc.com) — “Stated certification/affiliation: Mass Save® partner (states it works in partnership with Mass Save)”
- A 2024 Westwood Living feature introduced owner Michael Greene and the company _(confidence: low)_
  - [westwood-living.com](https://westwood-living.com/jlenergy1024/) — “westwood-living.com — As the chilly months of fall and winter approach, it’s a good time to introduce you to a man, Michael Greene, and a co…”
- Specializes in Insulation & Weatherization _(confidence: high)_
  - [Official Website](https://jandlenergyinc.com) — “A Massachusetts energy-efficiency contractor that does Mass Save program work — insulation, air sealing, heat pumps and mini-splits, thermos…”
- Also offers HVAC / Heating & Cooling _(confidence: medium)_
  - [Official Website](https://jandlenergyinc.com) — “A Massachusetts energy-efficiency contractor that does Mass Save program work — insulation, air sealing, heat pumps and mini-splits, thermos…”
- Also offers Windows / Siding / Gutters _(confidence: medium)_
  - [Official Website](https://jandlenergyinc.com) — “A Massachusetts energy-efficiency contractor that does Mass Save program work — insulation, air sealing, heat pumps and mini-splits, thermos…”
- Also offers Roofing _(confidence: medium)_
  - [Official Website](https://jandlenergyinc.com) — “A Massachusetts energy-efficiency contractor that does Mass Save program work — insulation, air sealing, heat pumps and mini-splits, thermos…”

## License

Status: **not_found** — verified against the official MA state registry, never self-reported.
Re-check at the official registry: https://occupationallicensingandpermitting.mass.gov/madol/s/license-search-page

## Sources

- [BuildZoom](https://www.buildzoom.com/contractor/j-and-l-energy): Listed on this source
- [Exa](https://westwood-living.com/jlenergy1024/): 1 web mention across the open web (each linked to its source)
- [Official Website](https://jandlenergyinc.com): Self-reported profile and service details

## Mentions

Unverified third-party mentions found on the open web — relay with attribution ("a Reddit commenter said…"), never as Tavlee's own finding.

- “As the chilly months of fall and winter approach, it’s a good time to introduce you to a man, Michael Greene, and a company, J&L Energy, who can pad your wallet while making your home more energy effi…” — westwood-living.com (2024-10-29) — https://westwood-living.com/jlenergy1024/

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Data freshness: last scanned 2026-08-11T20:10:44.739Z.
Cite as: J and L Energy — Tavlee (https://tavlee.com/contractor/j-and-l-energy-winthrop)
Source: https://tavlee.com/contractor/j-and-l-energy-winthrop