Home Energy Efficiency Consultants LLC
Regional · 519 Broadway, Somerville, MA 02145, USA
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Call (617) 501-6788Visit websiteSee on GoogleYou reach them directly — we don’t take a cut.
Verified record
- MA HIC licenseVerified active
- Not rated by the BBB
- 58 reviews in the last 6 monthsNo negatives
- 37 work photos
Highlights
- HERS rating expertise — repeated praise for navigating Massachusetts energy code and permits
- Fast communication — reviewers consistently note quick replies and thorough follow-through
- Rebate guidance — helps clients secure Mass Save incentives alongside the HERS certificate
- Repeat builder trust — used across multi-family, ADU, and new-construction projects
- Spotless review record — 87 Google ratings averaging 5 stars, no negatives found
Home Energy Efficiency Consultants LLC, based in Somerville, is a one-person specialist practice built around a single job: getting homes and small multifamily buildings through the Massachusetts HERS rating and energy code process. Owner Dominic Zammuto does the work himself — his name is the point of contact in nearly every review, whether the project is an ADU in Newton, a single-family renovation in Worcester, or a multi-family new build. The Google page backs that up with volume — 87 ratings, all five stars — and the specifics rarely let up. Homeowners and general contractors describe the same pattern: Dominic walks them through the stretch energy code and HERS requirements step by step, turns reports around quickly, and stays reachable by text through inspections and permitting. In the last six months alone he picked up 58 reviews without a single negative one in the mix, and the praise keeps naming the same things — an ADU report delivered fast, a multi-family HERS certificate that unlocked rebate money, a renovation kept on schedule because he showed up when he said he would. Several reviews single out the money side specifically: he lines up Mass Save rebate paperwork alongside the HERS certificate, something more than one reviewer said they hadn't known to ask about. A general contractor who has used him on repeat projects credits him with keeping builds moving without the compliance step becoming a bottleneck. Worth knowing before calling: he isn't a general contractor in the hands-on sense. Every review describes him working alongside a homeowner's or builder's own construction team, handling the energy compliance and testing piece of the permit rather than the framing or renovation itself. If your project needs someone to also run the construction, you'll still need your own GC — Dominic's lane is the HERS rating, the stretch-code paperwork, and the rebate guidance that rides along with it. For anyone in the Somerville/Boston area needing a HERS rating to close out a permit — on an ADU, a gut renovation, or a multi-unit new build — this is a call that consistently gets answered and a report that consistently lands on time. His Massachusetts Home Improvement Contractor license checks out as active with the state. Confirm turnaround against your specific permit deadline, and ask him to loop in the Mass Save incentives from the start.
Read the comments
Most recent comments
- 5.0Jun 24, 2026
Dominic was thorough, helpful, responsive and extremely knowledgeable. We will definitely be working with him again on our future projects. Thanks again Dominic. Great job
— Gunish ChuganiView on Google Reviews ↗ - 5.0Jun 11, 2026
Very reliable, and easy to work with.
— Frankselio DasilvaView on Google Reviews ↗ - 5.0May 22, 2026
Good job all around!
— Den GalView on Google Reviews ↗ - 5.0May 21, 2026
Dominic is very knowledgeable with the stretch energy code he moved quickly to provide a report for the ADU we are proposing to do I find is fee to be more than fair
— Walter TortoriciView on Google Reviews ↗ - 5.0May 21, 2026
Dominic was extremely knowledgeable and helpful in helping us attain our HERS rating for our upcoming ADU project. He gave us great recommendations for energy-efficient HVAC options and for insulation options. Home Energy Efficiency Consultants also gave us all the information on MassSave rebates and services offered. Dominic was extremely professional and prompt with getting the HERS rating back to us for permitting purposes. Highly recommend.
— Michael DonnellyView on Google Reviews ↗
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Update history
Added 76 new comments, added 37 new photos, verified active license, established rating 4.4
- confirmed against the state license registry
- behind the score: HERS rating expertise — repeated praise for navigating Massachusetts energy code and permits