Lamothe Insulation & Contracting provides high-performance spray foam insulation services across Waltham, MA. We work with residential property owners, builders, and remodelers to improve energy efficiency, reduce heating costs, and create more comfortable living spaces. Whether you’re upgrading an attic, insulating a new build, or removing outdated insulation, we deliver prompt, dependable service. Call (508) 847-0119 to schedule a free quote.
We’re not a big-box subcontractor. Our team works directly with homeowners and builders to get insulation jobs done right—the first time. Whether you need high-efficiency spray foam or professional insulation removal, you’ll get straightforward communication, honest pricing, and clean results. Don’t leave your comfort and energy bills to chance. Get in touch at (508) 847-0119 or use our contact form.
North Waltham, South Side, Highlands / The Lanes, Piety Corner, Warrendale, The Bleachery, Lakeview, Banks Square, The Chemistry, Cedarwood / Brandeis University, Bentley College / City Center, Ravenswood, Rangely Acres
Middlesex County
02451, 02452, 02453
Call Lamothe Insulation & Contracting at (508) 847-0119 or submit your details for a free estimate.
Closed-cell spray foam is typically better for older homes with moisture concerns, as it adds structural support and acts as a vapor barrier.
Most projects are completed in a day or two depending on attic size, accessibility, and material type. We provide time estimates after inspection.
Yes, in areas where foam insulation is left exposed—like basements or garages—fire-resistant coatings are often required to meet code.
If the wall cavities are accessible or can be drilled strategically, dense pack or blown-in insulation can be retrofitted with minimal disruption.
Mineral wool is an excellent option where fire-resistance is a priority. It's non-combustible and performs well in exterior and shared walls.
