Maximize your property’s energy efficiency and year-round comfort with Millbury’s premier insulation experts. Lamothe Insulation provides advanced thermal envelopes for local homeowners and commercial developers looking to slash utility costs and improve indoor air quality. Whether you are retrofitting a historic New England home or insulating a new build, our precision-applied spray foam and cellulose solutions ensure a lifetime of performance.
Living in Millbury means preparing for humid summers and freezing Atlantic winters. Our specialized team understands the unique architectural demands of Worcester County, focusing on eliminating drafts and moisture infiltration at the source. By integrating modern science with professional craftsmanship, we help you create a sustainable, eco-friendly environment that stays warm in the winter and cool in the summer, all while reducing the strain on your HVAC system.




Choosing the right insulation contractor is the difference between a temporary fix and a lifetime of savings. At Lamothe Insulation, we bridge the gap between technical building science and local, friendly service. Our team is dedicated to transparency, ensuring you understand exactly how your new insulation will perform. Don't let your hard-earned money leak out through your attic or walls. Contact us today to secure your property’s envelope with the most trusted name in Millbury.
Don’t let another season go by with inefficient insulation that drains your bank account and compromises your comfort. Lamothe Insulation is ready to provide a comprehensive thermal assessment and a customized solution for your property. Whether you need a full spray foam application or a simple attic top-off, our team delivers results that you can feel immediately. Take the first step toward a more sustainable and comfortable future.

We recently completed a comprehensive attic retrofit for a Victorian-style home near Millbury Center. By removing old, degraded fiberglass and installing a combination of air sealing and blown-in cellulose, the homeowner reported a 30% reduction in heating costs during the first month of winter and a significant decrease in ice dam formation.
Armory Village, Bramanville Village, Downtown Millbury, West Millbury, Auburn, Grafton, Sutton, Oxford, Northbridge
Stop settling for drafty rooms and high energy bills. Lamothe Insulation is ready to provide you with a high-performance thermal barrier that lasts. Call us today at (508) 847-0119 or email [email protected] to schedule your expert consultation!
For older homes with closed wall cavities, dense-pack cellulose is often the best choice as it can be installed with minimal disruption. For attics, a combination of air sealing and blown-in insulation is highly effective for the New England climate.
Ice dams are caused by heat escaping from your home and melting snow on the roof. Spray foam insulation creates an airtight seal on the underside of your roof deck, keeping the heat inside your living space and your roof cool, which prevents ice dams from forming.
Yes, the blown-in cellulose we use is treated with borates, which provide excellent fire resistance and also act as a deterrent for pests and mold growth.
In many cases, yes. If the old insulation is damp, moldy, or compressed, it loses its R-value and can trap pollutants. We provide professional removal to ensure your new insulation performs at its maximum potential.
Most residential projects in the Millbury area can be completed in one to two days, depending on the size of the area and the type of material being installed.
Absolutely. Materials like mineral wool and open-cell spray foam have excellent acoustic properties that significantly reduce sound transmission through walls and ceilings.