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Valley Home Insulation is a Lawrence-based Mass Save partner that runs the whole weatherization process for homeowners — free energy assessment, paperwork, and the installation crew — rather than just showing up to blow insulation into an attic. Its BuildZoom permit history backs that up: attic, slope and basement-sill insulation, blown-in cellulose, rim-joist air sealing, and blower-door and CAZ testing, concentrated in the Lowell area. What comes up again and again in reviews, in both English and Spanish, is the office side of the process — staff named Giselle and Ronald get singled out repeatedly for walking customers through Mass Save paperwork, returning calls, and following up before, during and after the job. On the installation side, crew leads including Joel Nazario, Juan, and Frankie are credited with finishing on schedule, keeping the work site clean, and being thorough with details like garage-ceiling and exterior-wall blow-in. One customer said their gas bill dropped noticeably in the first month after the insulation went in. The company also handles heat pump installation, boiler replacement, and electrical work alongside insulation on some Mass Save-bundled projects a few reviewers describe. Not every experience has gone this smoothly: in a 2023 review, a customer said that after signing paperwork for a Mass Save-driven job, both their individual contact and the company stopped responding to emails and calls before the work started. For a straightforward Mass Save insulation and air-sealing job, this is a company with a deep, specific, mostly-positive track record — worth confirming an installation date and a direct point of contact once paperwork is signed, given the one account of being left waiting.
Excelente experiencia, muy buen trato de principio a fin durante todo el proceso, Giselle y Ronald excelete customer service me ayudaron muchisimo con la aplicacion, el equipo que trabajo en el proceso de la instalacion del sistema de heat pump super eficientes, rapidos y ordenados, gracias 10/10
Quiero agradecer a toda la compañía por el gran servició prestado a mi casa. Y en especial a Ronal rodrigues , por aclarar todas mis dudas y mostrarme todo el programa , también a los muchachos de boilas , electricidad y los de insulacion , por el buen trato y el gran trabajo que an echo. Muchas gracias
Excelente compañía excelente personal comenzando con Giselle una persona con un trato muy amable y profesional dedicada a cada persona que esté en el programa para ayudar a que todo salga de una manera excelente y que digo de Ronald es una persona que tiene cualidades extraordinarias amable,responsable,profesional,servicial y comprometido con cada persona que esté en el programa no hay nada son únicos y tienen un equipo de trabajo extraordinario todos Gracias a todos por el esfuerzo y excelente trabajo que hicieron en mi casa los recomiendo 100%
My experience with Valley Home Insulation was outstanding from beginning to end. I had my house insulated and a boiler replaced. My contact, Giselle, was incredibly attentive and responsive to all of my questions, ensuring every aspect of the project was completed thoroughly and on schedule. The on-site team (Jose, Ronald etc.) was equally impressive—knowledgeable, informative, and very accommodating. I’ve since recommended Valley Home Insulation to many family members and friends because of their exceptional customer service and quality project completion. I have nothing but great things to say.
Exelente servicio y personas serias
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1 change recorded — last scanned Aug 9, 2026.
Mass Save work3.9
Quotes that never go over4.8
Whole-home insulation4.7
Repeat business2.9